SDLRC - Region: United States - All

The Sheahan Diamond Literature Reference Compilation - Technical, Media and Corporate Articles based on Major Region - United States

The Sheahan Diamond Literature Reference Compilation is compiled by Patricia Sheahan who publishes on a monthly basis a list of new scientific articles related to diamonds as well as media coverage and corporate announcements called the Sheahan Diamond Literature Service that is distributed as a free pdf to a list of followers. Pat has kindly agreed to allow her work to be made available as an online digital resource at Kaiser Research Online so that a broader community interested in diamonds and related geology can benefit. The references are for personal use information purposes only; when available a link is provided to an online location where the full article can be accessed or purchased directly. Reproduction of this compilation in part or in whole without permission from the Sheahan Diamond Literature Service is strictly prohibited. Return to Diamond Region Index

Sheahan Diamond Literature Reference Compilation - Scientific Articles by Author for all years
A-An	Ao+	B-Bd	Be-Bk	Bl-Bq	Br+	C-Cg	Ch-Ck	Cl+	D-Dd	De-Dn	Do+	E	F-Fn	Fo+	G-Gh	Gi-Gq	Gr+	H-Hd	He-Hn	Ho+	I	J	K-Kg	Kh-Kn	Ko-Kq	Kr+	L-Lh
Li+	M-Maq	Mar-Mc	Md-Mn	Mo+	N	O	P-Pd	Pe-Pn	Po+	Q	R-Rh	Ri-Rn	Ro+	S-Sd	Se-Sh	Si-Sm	Sn-Ss	St+	T-Th	Ti+	U	V	W-Wg	Wh+	X	Y	Z

Sheahan Diamond Literature Reference Compilation - Media/Corporate References by Name for all years
A	B	C	D-Diam	Diamonds	Diamr+	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X	Y	Z

Each article reference in the SDLRC is tagged with one or more key words assigned by Pat Sheahan to highlight the main topics of the article. In addition most references have been tagged with one or more region words. In an effort to make it easier for users to track down articles related to a specific region, KRO has extracted these region words and developed a list of major region words presented in the Major Region Index to which individual region words used in the article reference have been assigned. Each individual Region Report contains in chronological order all the references with a region word associated with the Major Region word. Depending on the total for each reference type - technical, media and corporate - the references will be either in their own technical, media or corporate Region Report, or combined in a single report. Where there is a significant number of technical references there will be a technical report dedicated to the technical articles while the media and corporate references are combined in a separate region report. References that were added in the most recent monthly update are highlighted in yellow within the Region Report. The Major Region words have been defined by a scale system of "general", "continent", "country", "state or province" and "regional". Major Region words at the smaller scales have been created only when there are enough references to make isolating them worthwhile. References not tagged with a Region are excluded, and articles with a region word not matched with a Major Region show up in the "Unknown" report.

	Kimberlite - diamondiferous		Lamproite - diamondiferous		Lamprophyre - diamondiferous		Other - diamondiferous
	Kimberlite - non diamondiferous		Lamproite - non diamondiferous		Lamprophyre - non diamondiferous		Other - non diamondiferous
	Kimberlite - unknown		Lamproite - unknown		Lamprophyre - unknown		Other - unknown
	Future Mine		Current Mine		Former Mine	Click on icon for details about each occurrence. Works best with Google Chrome.
CITATION: Faure, S, 2010, World Kimberlites CONSOREM Database (Version 3), Consortium de Recherche en Exploration Minérale CONSOREM, Université du Québec à Montréal, Numerical Database on consorem.ca. NOTE: This publicly available database results of a compilation of other public databases, scientific and governmental publications and maps, and various data from exploration companies reports or Web sites, If you notice errors, have additional kimberlite localizations that should be included in this database, or have any comments and suggestions, please contact the author specifying the ID of the kimberlite: [email protected]

United States - Technical, Media and Corporate
Posted/ Published	Author	Title	Source	Region	Keywords
DS1859-0083 1846	American Journal of Science	Diamonds in North Carolina. Diamonds in the Urals	American Journal of Science, 2ND. SER. Vol. 2, NOVEMBER P. 119-120.	United States, Appalachia, North Carolina, Russia	Diamond Occurrences
DS1859-0048 1835	American Magazine	Diamond Found in North Carolina	American Magazine, Vol. 2, DECEMBER P. 139.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1859-0107 1852	Barney, J.	A Survey of a Route for a Railroad from the Valley of the Mississippi River to the Pacific Ocean, Commencing at St. Louis.	Executive Documents, No. 49, P. 31.	United States, Gulf Coast, Arkansas	Fourche Mountain, Quarry Stone
DS1859-0013 1774	Baumer, J.W.	Naturgeschichte Aller Edelsteine. Translated from Latin by Von Meidinger.	Wien:,	United States	Diamond Occurrence
DS1859-0073 1842	Beck, L.C.	Mineralogy of New York	Natural History of New York, Mineralogy, PT. 3, P. 275.	United States, Appalachia, New York, Finger Lakes	Geology
DS1859-0124 1858	Blake, W.P.	Report on the Gold Placers of Lumpkin County, Georgia and The Practicality of Working Them by Hydraulic Method.	New York: J.f. Trow Publishing, 39P.	United States, Georgia, Appalachia	Diamond Occurrence
DS1859-0127 1859	Blake, W.P.	The Gold Placers in the Vicinity of Dahlonega Georgia	Boston:, 63P.	United States, Georgia, Appalachia	Diamond Occurrence
DS1859-0050 1835	Clemson, T.G.	Diamond in North Carolina. #1	Geological Society Transactions, Vol. 1, P. 417; P. 421. ALSO: American Journal of Science, Vol.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1859-0096 1849	Clingman, T.L.	Letter to the Editor of the Highland Messenger	In: Charles Lanman's Letters From The Alleghany Mountains, N, 198P. PP. 186-187.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1859-0055 1837	Conrad, T.A.	On the Geological Survey of the Third District of the State of New York.	First Annual Report Geological Survey Third District New York, PP. 161-162.	United States, Appalachia, New York	Geology
DS1859-0051 1835	Featherstonehaugh, G.W.	Geological Report of an Examination Made in 1834 of the Elevated Country between the Missouri and Red Rivers.	Report To The House of Representatives, Washington., 97P.	United States, Gulf Coast, Arkansas	deposit -Magnet Cove
DS1859-0053 1836	Featherstonhaugh, G.W.	Report of a Geological Reconnaissance Made in 1835 from The seat of the Government by Way of the Green Bay and Wisconsin Territory to the Coteau de Prairie.	Washington., 168P.	United States	Geology
DS1859-0092 1847	Featherstonhaugh, G.W.	A Canoe Voyage Up the Minnay Sotor; with an Account of the Lead and Copper Deposits in Wisconsin; of the Gold Region In the Cherokee Country and Sketches of Popular Manners.	London: R. Bentley, TWO VOLUMES	United States, North Carolina, Wisconsin, Appalachia, Great Lakes	Travelogue
DS1859-0063 1838	Feuchtwanger, L.	Treatise on Gems	Boston, Also: New York: D. Appleton Co., 191P.	United States, Appalachia, North Carolina, Canada, Arizona, Nova Scotia	Diamond Occurrence
DS1859-0097 1849	Fraser, J.F.	Diamonds in Georgia. #2	Paper Read Oct. 5th.; American Phil. Soc. Proc.1848-1853, Vol. 5, No. 44, P. 106, 1854, (abstract.).	United States, Georgia, Appalachia	Diamond occurrence
DS1859-0131 1859	Geddes, G.	Survey of Onondaga	New York State Agricultural Society, Vol. 9, CHAPT. 2, P. 247.	United States, Appalachia, New York	Diamond Occurrence
DS1859-0098 1849	Gibbes, R.W.	Report on the Geology of South Carolina	South Quarterly Rev., Vol. 16, Oct. PP. 161-178.	United States, North Carolina, South Carolina, Georgia, Appalachia	Diamond Occurrence
DS1859-0112 1853	Hunter, C.L.	Notices of the Rarer Minerals and New Localities in Western north Carolina. Lincoln, Mettelburg	American Journal of Science, Vol. 15, PP. 373-378. ALSO ZEITSCHRFT. PRAKT. CHEM. Vol. 59	United States, Appalachia, North Carolina	Diamond Occurrence
DS1859-0115 1854	Hunter, C.L.	Diamonds in North Carolina. #2	Boston Soc. Nat. History Proceedings, Vol. 4, P. 240.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1859-0133 1859	Jackson, C.T.	Sur la Bornite de DahlOnega et sur Les Diamants de l'etat De Georgie.	Academy of Science Paris COMPTES RENDUS, Vol. 48, PP. 850-851. ALSO American Journal of Science, N.S. 2, Vol. 27	United States, Appalachia, Georgia	Diamond Occurrence
DS1859-0099 1849	King, H.	A Geological Survey of the State of Missouri	Western Journal (st. Louis), Vol. 3, PP. 12-29; PP. 76-83.	United States, Central States	Geology
DS1859-0104 1851	King, H.	Some Remarks on the Geology of the State of Missouri, Magnet Cove	American Association Proceedings, Vol. 5.	United States, Gulf Coast, Arkansas	Geology
DS1859-0134 1859	Lieber, O.M.	The Itacolumite and its Associates Comprising Observations On Their Geological Importance and Their Connection with The occurrences of Gold...	Columbia: State Printer., PP. 75-220.	United States, South Carolina, Appalachia	Geology
DS1859-0135 1859	Lieber, O.M.	A Contribution to the Geologic Chronology of the Southern Alleghanies	American Association Proceedings, Vol. 12, PP. 227-230.	United States, South Carolina, North Carolina, Appalachia, Brazil, Russia	Geology
DS1859-0074 1842	Locke, J.	Diamonds in Indiana. #2	American Association Proceedings, Vol. 3, P. 38.	United States, Indiana, Great Lakes	Diamond Occurrence
DM1859-0149 1856	London Mining Journal	Discovery of Diamonds in California	London Mining Journal, Vol. 1, No. 2, MAY 1ST. P. 13.	United States, California, West Coast, Touloumne	Diamond Occurrence
DS1859-0100 1849	Lyman, C.S.	Platinum and Diamonds in California	American Journal of Science, Vol. 8, P. 294.	United States	Diamond Occurrence
DM1859-0150 1858	Mining Magazine	Geology and the Deposits of Gold	Mining Magazine., Vol. 10, P. 403.	United States, Georgia, Appalachia	Diamond Occurrence
DM1859-0148 1855	New York Evening Post	A Large Diamond Was Found at Manchester, Virginia.	New York Evening Post., APRIL 28TH.	United States, Appalachia, Virginia	Dewey, Diamonds Notable, Diamond, Koninoor, Sun Of Light, Morris
DS1859-0081 1845	Patterson, R.M.	Diamond from Hall County, Georgia. #1	Paper Read Nov. 21.; Proceedings of The American Philosophical Society 1843-1847, Vol. 4, No. 34, PP. 211-212, 1848 abstract	United States, Georgia, Appalachia	Diamond Occurrence
DS1859-0088 1846	Patterson, R.M.	Diamond from Hall County, Georgia. #2	Paper Read Feb. 20th.; Proceedings of The American Philosophical, Vol. 4, No. 35, P. 240, 1848 abstract	United States, Georgia, Appalachia	Diamond Occurrence
DS1859-0102 1850	Patterson, R.M.	Ueber die Beschaffenheit und das Vorkommen des Goldes Platins und der Diamanten in Den Verienigten Staeten.	Zetschr. D. Deutsch. Geol. Gesell., Vol. 2, PP. 60-64. TRANSLATED BY KNOPF, R.W. AS United States Geological Survey (USGS Open File)	United States	Diamond Ocurrence
DS1859-0109 1852	Phillips, W.	An Elementary Introduction to Mineralogy	London: Longman, Brown, Green And Longmans, 700P. SECOND EDITION.	United States, Georgia, North Carolina, Appalachia	Mineralogy
DS1859-0076 1842	Powell, W.B.	Geological Report upon the Fourche Cove and its Immediate Vicinity. Arkansas	Little Rock:, PRIVATELY Publishing BY AUTHOR 22P.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology
DM1859-0145 1853	Shephard, C.U.	North Carolin a Copper Mines	Mining Magazine., Vol. 1, JULY, P. 74.	United States, North Carolina, Appalachia	Geology
DS1859-0082 1845	Shephard, C.U.	On the Occurrence of Itacolumite and Diamond - sandstone	American Association Proceedings, Vol. 6, PP. 41-43.	United States, Georgia, Appalachia, Italy	Diamond Occurrence
DS1859-0089 1846	Shephard, C.U.	Diamonds in North Carolina. #3	American Journal of Science, N.S. Vol. 2, P. 119.	United States, North Carolina, Tennessee	Diamond Occurrence
DS1859-0122 1857	Shephard, C.U.	A Treatise on Mineralogy	New Haven: B.l. Hamlen., 3RD. EDITION 2 VOLS.	United States, North Carolina, Georgia, Appalachia	Mineralogy
DS1859-0090 1846	Sheppard, C.U.	On Three New Mineral Species from Arkansas and the Discovery of the Diamond in North Carolina.	American Journal of Science, SER. 2, Vol. 2, P. 253.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineralogy, Petrology
DM1859-0141 1850	Tennant, J.	California- its Produce and Prospects. Comment on a Paper By A. Walls Entitled California its History and Prospects. Read Jan. 16th. at the Society of Arts.	London Mining Journal, Vol. 20, Jan. 19TH. P. 26.	United States, California, West Coast	Diamond Occurrence
DS1859-0095 1848	Toumey, M.	Report on the Geology of South Carolina 1848	Columbia: A.s. Johnston., 293P.	United States, South Carolina, Appalachia	Geology
DS1859-0061 1837	Vanuxem, L.	Mafic Dike at East Canada Creek New York State	Second Annual Report Geological Survey Third District New York, P. 265.	United States, Appalachia, New York	Geology
DS1859-0068 1839	Vanuxem, L.	Geological Survey of New York, Dikes in Syracuse	Third Annual Report Geological Survey Third District New York, P. 160; 256; 260; 283.	United States, Appalachia, New York	Geology
DS1859-0077 1842	Vanuxem, L.	Natural History of New York. Geological Survey of New York, igneous Dikes at Syracuse, Ludlowville and Manheim.	Final Report Geological Survey Third District New York, PT. 3, PP. 109-110; P. 169; PP. 207-208.	United States, Appalachia, New York	Geology
DM1859-0146 1853	Vivian, W.	The Mining Districts of California	London Mining Journal, Vol. 23, Jan. 29TH. P. 61.	United States, California, West Coast	Diamond Occurrence
DS1859-0136 1859	Watson, J.W.	Something about Diamonds (1859)	Harpers Magazine, Vol. 19, PP. 466-481.	United States, North Carolina, Connecticut, Kentucky, Virginia, Appalachia	Gemology
DS1859-0137 1859	Wurtz, H.	On the Occurrence of Cobalt and Nickel in Gaston County, North Carolina.	American Association Proceedings, Vol. 12, PP. 221-227; ALSO: American Journal of Science, Vol. 2, PP. 24	United States, North Carolina, Appalachia	Diamond Occurrence
DS1860-0687 1891	American Analyst	Stellar Diamonds. a Suggestion As to the Meteorite Origin Of the Diamond. Canon Diable	American Analyst., Vol. 7, No. 39, SEPT. 24TH. P. 462.	South Africa, United States, Arizona, Colorado Plateau	Diamond Genesis
DS1860-0584 1888	American Engineering	Diamonds in Clayton County, Georgia	American Engineering, Vol. 16, No. 8, JULY 4TH.	United States, Georgia	Diamond Occurrence
DS1860-0690 1891	American Geologist	Diamond in Wisconsin. #1	American Geologist, Vol. 7, Jan. P. 72.	United States, Wisconsin, Appalachia	Diamond Occurrence
DS1860-0020 1866	American Journal of Mining	Diamonds at Cherokee	American Journal of Mining, Vol. 1, JULY 7TH. P. 226.	United States, California, West Coast	Diamond Occurrence
DS1860-0021 1866	American Journal of Mining	Diamonds in Butte County	American Journal of Mining, Vol. 1, MAY 19TH. P. 125.	United States, California, West Coast, Montana	Diamond Occurrence
DS1860-0023 1866	American Journal of Mining	Diamonds in the Southern States	American Journal of Mining, Vol. 1, JULY 7TH. PP. 227-228.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0040 1867	American Journal of Mining	Diamonds in California, 1867	American Journal of Mining, Vol. 3, JUNE 22ND. P. 251.	United States, California, West Coast	Diamond Occurrence
DS1860-0042 1867	American Journal of Mining	Diamonds in Amador County	American Journal of Mining, Vol. 4, SEPT. 28TH. P. 202.	United States, California, West Coast, Amador	Diamond Occurrence
DS1860-0043 1867	American Journal of Mining	Diamonds in the United States	American Journal of Mining, Vol. 4, SEPT. 7TH. PP. 145-146.	United States, California, West Coast, Idaho, Virginia, Georgia, North Carolina	Diamond Occurrence
DS1860-0044 1867	American Journal of Mining	Precious Stone in Georgia	American Journal of Mining, Vol. 3, MAY 11TH. P. 122.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0045 1867	American Journal of Mining	Diamonds in Idaho, 1867	American Journal of Mining, Vol. 4, SEPT. 7TH. PP. 145-146.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0352 1881	Anon.	Georgia Diamonds #1	South , Vol. 21, No. 1, JULY P. 12.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0376 1882	Anon.	Diamond in Georgia	South, Vol. 23, No. 3, P. 19.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0405 1883	Anon.	Gems and Gem Hunting	Newspaper Clipping Unknown.,	United States, North Carolina	Prospecting
DS1860-0585 1888	Anon.	Have We Found Diamonds Amongst United States?	Waterbury, JANUARY PP. 99-100.	United States, Kentucky	Diamond Occurrence
DS1860-0922 1896	Anon.	The Diamond Field	North Adams, MassachusettsTranscript., APRIL 2ND.	United States, Massachusetts, Appalachia	Diamond Occurrence
DS1860-0537 1887	Art Journal	North Carolina Wealth in Precious Minerals and Metals	Art Journal, Nov. P.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1860-0583 1888	Atlanta Constitution	Something about Diamonds (1888)	Atlanta Constitutionn., MAY 11TH.	United States, Georgia	Gemology
DS1860-0353 1881	Avery, I.W.	The History of the State of Georgia from 1850 to 1881 Embracing the Three Important Epochs: the Decade Before the War 1861-1865; the War; the Period of Reconstruction.	New York: Brown And Derby, 754P.	United States, Georgia, Appalachia	History
DS1860-0427 1884	Aylward, A.	Carolina as a diamond field	Marion Post., AUGUST 20TH.	United States, North Carolina	Diamond Occurrence
DS1860-0455 1885	Aylward, A.	North Carolina as it Is	Mining Record, MARCH 14TH. P. 165.	United States, North Carolina	Diamond Occurrence
DS1860-1065 1899	Baltimore Herald	Gems Found in Wisconsin	Baltimore Herald., JULY 16TH.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0079 1869	Bannister, Cown and Co.	The Resources of North Carolina: its Natural Wealth, Conditions, and Advantages As Existing in 1869.	Wilmington:, 116P.	United States, North Carolina	Diamond Occurrence
DS1860-0929 1896	Bauer, M.	Edelsteinkunde	Leipzig:, 1ST. EDITION 711P. INDIA PP. 140-155.	Australia, Indonesia, Borneo, South America, Brazil, Guyana, India, Africa, South Africa, United States, Russia	Diamond Occurrence
DM1860-1105 1861	Blake, W.P.	Contributions to the Mineralogy and Geology of Georgia. No.1, Notices of Some Mineral Localities with Remarks.	Mining Magazine., Vol. 2, No. 2, PP. 76-80.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0026 1866	Blake, W.P.	Annotated Catalogue of the Principal Mineral Species Hitherto Recognized in California.	Sacramento: Private Publishing, 31P.	United States, California, West Coast, Montana	Gemology
DS1860-0730 1892	Boise City Statesman	Diamond Discovery. an Interesting talk with an acknowledged expert.	Boise City Statesman., Dec. 15TH.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0731 1892	Boise City Statesman	Our Idaho Diamonds	Boise City Statesman., Dec. 22ND.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0028 1866	Bonner, J.	Diamonds and other Gems. #3	Harper's New Monthly Magazine., Vol. 32, PP. 343-353.	United States	Economics
DS1860-0458 1885	Boutan, E.	Le Diamant (1885)	Unknown, 323P. INDIA PP. 3-121; Brasil PP. 122-150; SOUTH AFRICA	Australia, Asia, Borneo, South America, Brazil, India, Africa, South Africa, Russia, United States	Diamond Occurrences
DS1860-0884 1895	Brady, J.G.	Diamonds in Alaska; March, 1895	Letter To G.F. Kunz From Sitka Alaska., MARCH 2ND.	United States, Alaska	Diamond Occurrence
DS1860-0619 1889	Branner, J.C.	The Age of Crystalline Rocks of Arkansas	American Association Advanced Science, Vol. 37, P. 188. (abstract.).	United States, Gulf Coast, Arkansas, Pennsylvania	Geochronology
DS1860-0620 1889	Branner, J.C., Brackett, R.N.	The Peridotite of Pike County, Arkansas Prarie Creek	American Journal of Science, SER. 3, Vol. 38, PP. 50-59.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineralogy, Petrology
DS1860-0408 1883	Brown, R.T.	Geology of Morgan County, Indianapolis, Indiana	Indiana Department Geol. Nat. Hist. 13th. Annual Report, PT. 1, PP. 71-85.	United States, Indiana	Diamonds Occurrence
DS1860-0178 1872	Burkart, H.J.	Der Diamant, Sein Verkommen und Seine Genesis	Ausland., Vol. 44, PP. 1188-1195; PP. 1205-1211; PP. 1237-1243; Vol. 4	Europe, Spain, Ireland, China, Mexico, United States, North Carolina	Diamond Genesis
DS1860-0885 1895	Caldon, J.D.	Discourses on Georgia's Precious Stones	Jewellers Circular Keystone, Vol. 31, No. 8, SEPT. 25TH. PP. 6-7.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0006 1861	California Magazine	The Great Knight's Ferry Diamond	California Magazine., Vol. 5, P. 208.	United States, California, West Coast	Diamonds notable
DS1860-0796 1893	Cameron, J.D.	Handbook of North Carolina With Illustrations and Map	Raleigh: Edward And Boughton., 333P.	United States, North Carolina, Appalachia	Diamond Occurrence
DM1860-1186 1898	Chicago Record	A Few Diamonds But No Gold	Chicago Record., Dec. 23RD.	United States, Ohio, Great Lakes	Diamond Occurrence
DM1860-1158 1890	Chigago Times	A Georgia Diamond	Chicago Times, APRIL 15TH.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0830 1894	Cincinnati Enquirer	Despatch Describes Two Diamonds Found Near Georgetown, Brown County by Z.t. Staples.	Cincinnati Enquirer., Dec. 2ND.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1860-1016 1898	Cincinnati Enquirer	Diamond of Perfect Purity	Cincinnati Enquirer., Nov. 27TH.	United States, Ohio, Great Lakes	Diamond morphology
DS1860-1076 1899	Clarke, J.M.	The Peridotite Dike on Green Street Hill	New York State Museum Handbook, No. 15, P. 81.	United States, Appalachia, New York	Geology
DM1860-1148 1884	Clingman, T.L.	The First American Diamond	New York Tribune., JUNE 1.	United States, North Carolina	Diamond Occurrence
DS1860-0623 1889	Colton, H.E.	Precious Stones of North Carolina	Tradesmen., MAY 15TH.	United States, North Carolina, Georgia, Appalachia	Diamond Occurrence
DS1860-0589 1888	Comstock, T.G.	Report upon the Preliminary Examination of the Geology of The Western Central Arkansas. Magnet Cove	Annual Report of The Geological Survey of Arkansaw For 1888, Vol. 1.	United States, Gulf Coast, Arkansas, Hot Spring County, Garland County	Mineralogy
DM1860-1131 1872	Cope, W.	Diamond Discoveries in the Rocky Mountains	London Mining Journal, Vol. 42 AUGUST 31 P. 830.	United States, Arizona, New Mexico, Colorado Plateau	Diamond Occurrence
DS1860-0291 1878	Cox, E.T.	Stones Found in Morgan and Brown Counties	Indiana Geological Survey Reports For 8th. 9th. 10th., P. 110.	United States, Indiana, Great Lakes	Diamond Occurrences
DS1860-0461 1885	Crandall, A.R.	The Occurrence of Trap Rock in Eastern Kentucky	Science., Vol. 6, P. 222.	United States, Appalachia, Kentucky	Geology
DS1860-0498 1886	Crandall, A.R.	Report on the Geology of Elliott County. Notes on the Trap Dikes of Elliott County by A.r. Crandall and J.s. Diller.	Frankfort: J.d. Woods Public Printer For Kentucky Geological Survey, 28P.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1860-0934 1896	Crawford, J.J.	Diamond, El Dorado County	California Min. Bur. Report, Vol. 13, P. 642.	United States, California, West Coast, El Dorado	Diamond Occurrence
DS1860-0049 1867	Credner, H.	Geognostische Skizze der Gold felder von Dahlonega, Georgia, nordamerika.	Deut. Geol. Ges. Zeit., Vol. 19, PP. 33-40.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0102 1870	Credner, H.	Ueber Ein Eisenstein vorkommen Auf Contaktgaengen in Sued Carolina.	Zeitschr. Gesam. Naturwissen., Vol. 35, PP. 20-24.	United States, South Carolina, Appalachia	Diamond Occurrence
DS1860-0138 1871	Credner, H.	Die Geognosie und der Mineralreichthum des Alleghany-systems	Zeit. Gesell. Naturw., Vol. 37, PP. 179-201. ALSO: PETERM. MITT., Vol. 17, PP. 41-5	United States, North Carolina, South Carolina, Georgia, Appalachia	Diamond Occurrence
DS1860-0980 1897	Cross, C.W.	Igneous Rocks of the Leucite Hills and Pilot Butte Wyoming	American Journal of Science, Vol. 4, PP. 115-141; PP. 120-123; PP. 131-134; PP. 137-138.	United States, Wyoming, Rocky Mountains, Leucite Hills	Petrology
DS1860-0655 1890	Darton, N.H.	On the Occurrence of Basalt Dikes in the Upper Paleozoic Series in the Central Appalachians, Virginia with a Note on The Petrography by J.s. Diller.	American Journal of Science, SER. 3, Vol. 39, PP. 269-271.	United States, Appalachia, Virginia	Petrography, Related Rocks
DS1860-1024 1898	Darton, N.H.	On Dikes of Felsophyre and Basalt in Central Appalachians Virginia with Notes on the Petrography by A. Keith.	American Journal of Science, SER. 4, Vol. 6, PP. 305-315.	United States, Virginia	Related Rocks, Petrography
DS1860-0887 1895	Darton, N.H., Kemp, J.F.	A Newly Discovered Dike at de Witt Near Syracuse, New York.petrographic Description by J.f. Kemp.	American Journal of Science, 3RD. SER. Vol. 49, PP. 456-462..; ALSO: Geological Society of America (GSA) BUL	United States, New York, Appalachia	Related Rocks
DS1860-0841 1894	Davis, E.	The Mason Diamond Is Offered for Sale	Letter To G.f. Kunz, Sept. 1st.	United States, Montana	Diamonds Notable
DS1860-0659 1890	Day, D.T.	Mineral Resources of the U.s. Calendar Year 1888	Department of THE INTERIOR, United States Geological Survey (USGS), WASHINGTON., 537P.	United States, Arkansas	Diamond Occurrence
DM1860-1177 1895	Demming, H.C.	Rare Gems from the South	Philadelphia Times, AUGUST 24TH.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1860-1026 1898	Derby, A.G.	On the Origin of Certain Siliceous Rocks, Notes on Arkansas novaculite.	Journal of Geology, Vol. 6, PP. 366-368.	United States, Gulf Coast, Arkansas	Geology
DS1860-0225 1874	Derby, O.A.	Hints to Geological Students	The Cornell Review., Vol. 1, P. 70.	United States, New York	Geology
DS1860-0205 1873	Despres, G.	Les Mines Salees de Diamant En Californie	Annual Industrial Minerals, Jan. 12TH. PT. 1, COL. 37-38.	United States, California, West Coast	Diamond Occurrence
DS1860-0880 1895	Detroit Journal	A Big Diamond Dowagic	Detroit Journal, JULY 20TH.	United States, Michigan, Great Lakes	Diamonds Notable
DS1860-0462 1885	Diller, J.S.	Dikes of Peridotite Cutting the Carboniferous Rocks of Kentucky.	Science., Vol. 5, Jan. 23RD., P. 65.	United States, Kentucky	Related Rocks, Geology
DS1860-0500 1886	Diller, J.S.	Notes on the Peridotite of Elliott County, Kentucky	American Journal of Science, SER. 3, Vol. 32, PP. 121-125.	United States, Kentucky	Related Rocks, Geology
DS1860-0501 1886	Diller, J.S.	The Genesis of the Diamond - in Science by Diller	Science., Vol. 8, No. 195, P. 392.	United States, Kentucky, Africa, South Africa	Diamond genesis
DS1860-0546 1887	Diller, J.S.	Peridotite of Elliott County, Kentucky #1	United States Geological Survey (USGS) Bulletin., No. 38, PP. 363-383.	United States, Kentucky	Related Rocks, Geology
DS1860-0626 1889	Diller, J.S.	Supplementary Notes on the Peridotite of Elliott County, Kentucky.	American Journal of Science, SER. 3, Vol. 37, PP. 219-220.	United States, Kentucky	Geology, Related Rocks
DS1860-0627 1889	Diller, J.S.	Mica-peridotite from Kentucky	American Journal of Science, SER. 3, Vol. 44, PP. 286-289.	United States, Kentucky	Geology, Related Rocks
DS1860-0746 1892	Diller, J.S.	Mica Peridotite from Kentucky	American Journal of Science, SER. 3, Vol. 44, PP. 286-289.	United States, Kentucky	Geology, Related Rocks
DS1860-1079 1899	Diller, J.S.	Peridotite of Elliott County, Kentucky #2	American Journal of Science, SER. 3, Vol. 37, P. 219.	United States, Kentucky	Geology, Related Rocks
DS1860-0547 1887	Diller, J.S., Kunz, G.F.	Is There a Diamond Field in Kentucky?	Science., Vol. 10, No. 241, SEPT. 16TH. PP. 140-142.	United States, Kentucky	Diamond Occurrence, History
DS1860-0134 1871	Dingler	Das Vorkommen von Diamanten in Californien	Dingler's., No. 199, P. 76.	United States, California, Oregon	Diamond Occurrence
DS1860-0799 1893	Eakle, A.S.	On Some Dikes Occurring Near Lyon Mountains, Clinton County, New York.	American Geologist., Vol. 12, PP. 31-36.	United States, New York	Geology
DS1860-0103 1870	Edwards, A.M.	Note on Itacolumite	Lyc. Nat. Hist. Proceedings, Vol. 1, PP. 33-36.	United States	Geology
DS1860-0277 1877	Emmons, S.F.	Descriptive Geology Leucite Hills	U.s. Geol. Exped. 40th. Parallel Report, PT. 2, PP. 236-238.	United States, Wyoming	Geology
DS1860-0278 1877	Endlich, F.M.	Eleventh Annual Report of the Survey of the Territories: Hayden Survey. Leucite Hills	United States Geological Survey (USGS) REPORT FOR 1877.,	United States, Wyoming	Geology
DS1860-0171 1872	Engineering And Mining Journal	Diamond Swindle	Engineering and Mining Journal, Vol. 14, Dec. 10TH. PP. 379-380.	United States, California, West Coast	Legal
DS1860-0490 1886	Engineering And Mining Journal	Diamond in Wisconsin. #2	Engineering and Mining Journal, Vol. 41, Feb. 6TH. P. 98.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0532 1887	Engineering And Mining Journal	North Carolina diamond	Engineering and Mining Journal, Vol. 44, JULY 9TH. P. 22.	United States, Appalachia, North Carolina, West Virginia	Diamond Occurrence
DS1860-0649 1890	Engineering And Mining Journal	Diamonds in Wisconsin. #2	Engineering and Mining Journal, Vol. 50, Dec. 13TH. P. 686.	United States, Wisconsin	Diamond Occurrence
DS1860-0788 1893	Engineering And Mining Journal	Idaho Diamonds	Engineering and Mining Journal, Vol. 55, Feb. 18TH. P. 147.	United States, Idaho, Rocky Mountains	Legal
DS1860-0789 1893	Engineering And Mining Journal	Diamonds in Idaho, 1893	Engineering and Mining Journal, Vol. 55, Jan. 7TH. P. 14.	United States, Idaho, Rocky Mountains	Legal
DS1860-0829 1894	Engineering And Mining Journal	American Diamonds. #1	Engineering and Mining Journal, Vol. 57, Jan. 20TH. P. 55.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0747 1892	Failyer, G.H., Bailey, E.H.	A Revised List of Kansas Minerals	Kansas Acad. Science Transactions, Vol. 13, PP. 27-29.	United States, Kansas	Diamond Occurrence
DM1860-1132 1872	Faren, J.	The New Mexico Diamond Mines	London Mining Journal, Vol. 42, Oct. 19TH. P. 1008.	United States, New Mexico, Colorado Plateau	Diamond Occurrence
DS1860-0550 1887	Foote, A.E.	Gems and Ornamental Stones of the USA	Nature., Vol. 37, Nov. 17TH. PP. 68-69.	United States	Diamond Occurrence
DS1860-0698 1891	Foote, A.E.	A New Locality for Meteoritic Iron with a Preliminary Notice of the Discovery of Diamonds in the Iron.	American Journal of Science SER. 3, Vol. 42, PP. 413-417.	United States, Arizona, Colorado Plateau	Diamond Occurrence
DS1860-0433 1884	Foote, G.B.	The Mason Diamond	Letter To G.f. Kunz, APRIL 18TH.	United States, Montana, Canada, Alberta	Diamonds notable
DS1860-0410 1883	Fremont Clipper	Precious Stones 1883	Fremont Clipper, Lewiston Gold Miner., Vol. 1, No. 1, MAY 1894.	United States, State Line, Colorado, Wyoming	Diamond Occurrence
DS1860-0183 1872	Genth, F.A.	Mineral Resources of North Carolina	Journal of the Franklin Institute, Vol. 93, PP. 48-61; PP. 114-130.	United States, North Carolina	Diamond Occurrence
DS1860-0245 1875	Genth, F.A.	Minerals of North Carolin a (1875)	North Carolina Geological Survey Report, PP. 53-58. ALSO: Journal of FRANKLIN Institute Nov. and Dec.	United States, North Carolina	Diamond Occurrence
DS1860-0364 1881	Genth, F.A.	Minerals of North Carolin a (1881)	Raleigh: P.m. Hale And Edwards, 122P.	United States, North Carolina	Diamond Occurrence
DS1860-0466 1885	Genth, F.A.	Minerals of North Carolin a (1885)	Raleigh: P.m. Hale And Edwards, 128P.	United States, North Carolina	Diamond Occurrence
DS1860-0700 1891	Genth, F.A.	Diamond, 1891	United States Geological Survey (USGS) Bulletin., No. 74, 119P.	United States, North Carolina	Diamond Occurrence
DS1860-0577 1888	Geological Survey of Canada	Precious Stones, Gems and Decorative Stones in Canada and British america.	Geological Survey of Canada Annual Report FOR 1887, PT. 3, PP. 65-80.	Canada, United States	Diamond Occurrence
DS1860-0614 1889	Globe Democrat	California Diamonds. an Australian Diamond Hunter Beginning to Work in Amador.	Globe Democrat., Jan. 5TH.	United States, California, West Coast	Diamond Occurrence
DS1860-0144 1871	Goodyear, W.A.	The Gravel Hills of Placerville	Mining and Scientific Press, Vol. 23, Nov. 25TH. DEC 2ND. P. 329, P. 342.	United States, California	Diamond Occurrence
DS1860-0207 1873	Goodyear, W.A.	Diamonds in El Dorado County, California. In: Fourth Report on Mineral Resources of the States and Territories West of The Mississippi. R.w. Raymond.	42nd. Congress, 2nd. Session, House Executive Document., No. 211, P. 29.	United States, California	Diamond Occurrence
DS1860-0491 1886	Government Printer	Handbook of North Carolin a With Map of the State	Raleigh: P.M. Hale, State Printer., 352P.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1860-0701 1891	Griswold, L.S.	The Novaculites of Arkansas	American Association Advanced Science, Vol. 39, PP. 248-250. EXTENDED ABSTRACT.	United States, Arkansas	Alkaline rocks
DS1860-0749 1892	Griswold, L.S.	Whetstones and the Novaculites of Arkansaw	Arkansaw Geological Survey Annual Report FOR 1890, Vol. 3, 443P.	United States, Arkansas	Alkaline rocks
DM1860-1152 1886	Habersham, W.W.	The Diamond Fields of Georgia	New York Times, Jan. 23RD.	United States, Georgia	Diamond Occurrence
DS1860-0508 1886	Habersham, W.W.	Diamonds in Dixie	Dixie., Vol. 2, PP. 7-8.	United States, Georgia	Diamond Occurrence
DS1860-0279 1877	Hague, A., Emmons, S.F.	Volcanic Rocks, Green River Basin Leucite Hills	United States Geological Survey (USGS), PP. 236-238.	United States, Colorado Plateau, Wyoming	Geology, Petrology
DS1860-0844 1894	Hall, J., Darton, N.P.	Geology of the Mohawk Valley in Herkimer, Fulton, Montgomery and Saratoga Counties.	Thirteenth Annual Report Geological Survey New York, Vol. 1, PP. 409-429.	United States, New York	Geology
DS1860-0105 1870	Hamlin, A.C.	The Gems of the United States	American Association Proceedings, Vol. 18, PP. 210-216.	United States	Gemology
DS1860-0436 1884	Hamlin, A.C.	Diamonds in Georgia. #1	Leisure Hours Among The Gems, PP. 49-51.	United States, Georgia, North Carolina, Alabama	Diamond Occurrence
DS1860-0106 1870	Hanks, H.G.	Diamonds in California; August, 1870	Mining And Scientific Press, Vol. 21, P. 122, AUGUST 20.	United States, California	Diamond Occurrence
DS1860-0107 1870	Hanks, H.G.	Diamonds in California; March, 1870 Amador	Mining and Scientific Press, Vol. 20, MARCH 12, P. 162.	United States, California	Diamond Occurrence
DS1860-0383 1882	Hanks, H.G.	Diamonds in California. Report of the State Mineralogist	Second Report of The State Mineralogist From December 1, 188, No. 2, PP. 241-254.	United States, California, Nevada County	Diamond Occurrence
DS1860-0437 1884	Hanks, H.G.	Fourth Report of the State Mineralogist. Catalogue of Minerals of California.	California Min. Bur. Report, No. 4, 410P.	United States, California	Diamond Occurrence
DS1860-0467 1885	Hanks, H.G.	Diamond from Cherokee Flat, Butte County	California State Min. Bureau Report, No. 5, P. 68.	United States, California, Montana	Diamond Occurrence
DS1860-0509 1886	Hanks, H.G.	Diamonds in California, 1886	California State Mining Bureau, 6th. Annual Report., 145P.	United States, California	Diamond Occurrence
DS1860-0552 1887	Hanks, H.G.	Diamonds in California; September, 1887 Amador	Mining and Scientific Press, Vol. 54, SEPT. 3RD. P. 149.	United States, California	Diamond Occurrence
DS1860-0662 1890	Hanna, G.B.	Geology of North Carolina	Charlotte: A.d. Smith And Co., 465P.	United States, North Carolina	Diamond Occurrence
DS1860-0135 1871	Harper's Magazine	A Chapter on Gems	Harpers Magazine., Vol. 42, Jan. PP. 223-225.	United States, North Carolina	Gemology
DS1860-0339 1880	Harrison, W.P.	Mineral Wealth of the State of Georgia	Mineralogical Record, Vol. 8, Nov. 27TH. P. 509; ALSO: LONDON MINING JOURNAL, Vol.	United States, Georgia	Diamond Occurrence
DS1860-0511 1886	Harvey, F.L.	Minerals and Rocks of Arkansas, a Catalog of the Species	Grant And Faires, Philadelphia., 32P.	United States, Arkansas	Petrology
DS1860-0384 1882	Hay, R.	The Igneous Rocks of Kansas	Kansas Academy of Science Transactions, Vol. 8, PP. 14-18.	United States, Kansas, Wilson County	Alkaline rocks
DS1860-0663 1890	Hidden, W.E.	Addendum to the Minerals and Mineral Localities of North Carolina.	Elisha Mitchell Science Society Journal, Vol. 6, PT. 2, PP. 458.	United States, North Carolina	Diamond Occurrence
DS1860-0593 1888	Hill, R.T.	The Meozoic Geology of Southwestern Arkansas	Arkansas Geological Survey Report FOR 1888, Vol. 2, PP. 56-61.	United States, Arkansas	Regional Geology
DS1860-0847 1894	Hobbs, W.H.	On a Recent Diamond Find in Wisconsin and on the Probable Source of This and Other Wisconsin Diamonds.	American Geologist, Vol. 14, PP. 31-35.	United States, Wisconsin, Canada	Diamond Occurrence
DS1860-0890 1895	Hobbs, W.H.	A Contribution to the Mineralogy of Wisconsin	University Wisconsin Science Series Bulletin., Vol. 1, No. 4, PP. 109-156. ALSO: ZEITSCHRFT. KYST. Vol. 25	United States, Wisconsin	Mineralogy
DS1860-0940 1896	Hobbs, W.H.	Diamanten von Wisconsin	Neues Jahrbuch f?r Mineralogie, BD. 2. PP. 249-251.	United States, Wisconsin	Diamond Occurrence
DS1860-1086 1899	Hobbs, W.H.	Emigrant Diamonds in America. #1 Eagle, Oregon, Saukville, Milford	Popular Science Monthly, Vol. 56, PP. 73-83.	United States, Canada	Diamond Occurrence
DS1860-1087 1899	Hobbs, W.H.	The Diamond Field of the Great Lakes	Journal of Geology, Vol. 7, PP. 375-388. ALSO: ZEITSCHRFT PRAKT. GEOL. Vol. 8, P	United States, Great Lakes, Canada	Geology
DS1860-1088 1899	Hobbs, W.H.	Diamond Fields of the Great Lakes. #1	Milwaukee Sunday Sentinel, JUNE 11TH. ALSO: MINNEAPOLIS TRIBUNE AUGUST 13TH.; BROOKLYN	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0512 1886	Hunt, T.S.	Mineral Physiology and Physiography. a Second Series of Chemical and Geological Essays with a General Introduction.	Boston: Southeast Cassino, 710P.	United States	Mineralogy
DS1860-0831 1894	Indianapolis Journal	Describes a Diamond Found by Z.t. Staples at Georgetown, Brown County.	Indianapolis Journal, Dec. 3RD.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1860-1069 1899	Indianapolis Journal	Diamonds Picked Up	Indianapolis Sentinel, AUGUST.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1860-0594 1888	Irelan, W.JR.	Amador County Diamonds	California Min. Bureau Report., No. 8, PP. 104-106.; P. 116.	United States, California	Diamond Occurrence
DS1860-0440 1884	Jacobs, H., Chatrian, N.	Le Diamant (1884)	Paris: Masson, G. Editeur, Libraire De L'academie De Medicin, 358P. PP. 353-374.	Africa, South Africa, Global, Borneo, Brazil, India, United States	Gemology
DS1860-0728 1892	Jewellers Circular Keystone	Another Diamond Found in the Cracker State	Jewellers Circular Keystone, Vol. 25, No. 14, Nov. 2ND. P. 20.	United States, Georgia	Diamond Occurrence
DS1860-0734 1892	Jewellers Circular Keystone	Diamondiferous Ground in Ada County, Idaho	Jewellers Circular Keystone, Vol. 25, No. 20, Dec. 4TH. P. 4.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0780 1893	Jewellers Circular Keystone	Attempt to Boom Georgia Property by Salting Diamonds	Jewellers Circular Keystone, Vol. 26, No. 9, MARCH 29TH. P. 17.	United States, Georgia, Appalachia	legal
DS1860-0785 1893	Jewellers Circular Keystone	The Diamond Excitement in Idaho Not Yet on the Wane	Jewellers Circular Keystone, Vol. 25, No. 23, Jan. 4TH. PP. 12-13.	United States, Idaho, Rocky Mountains	Legal
DS1860-0786 1893	Jewellers Circular Keystone	Diamonds in Idaho, January, 1893	Jewellers Circular Keystone, Vol. 25, No. 25, Jan. 18TH. P. 25.	United States, Idaho, Rocky Mountains	Legal
DS1860-0791 1893	Jewellers Circular Keystone	Diamonds in Wisconsin. #3	Jewellers Circular Keystone, Vol. 27, No. 22, Dec. 27TH. P. 4.	United States, Wisconsin, Great Lakes, Oregon, Dane	Diamond Occurrence
DS1860-0833 1894	Jewellers Circular Keystone	A Plethora of Precious Stones Reported Found in Montana	Jewellers Circular Keystone, Vol. 28, No. 23, JULY 11TH. P. 8.	United States, Montana, Rocky Mountains	Diamond Occurrence
DS1860-1070 1899	Jewellers Circular Keystone	Diamond Found at Milford Ohio	Jewellers Circular Keystone, Vol. 37, No. 25, Jan. 18TH. P. 38.	United States, Ohio, Great Lakes	Diamonds Notable
DS1860-0689 1891	Jewellers Review	The Montana Gems	Jewellers Review, Dec. 12TH.	United States, Montana, Rocky Mountains	Diamond Occurrence
DS1860-0783 1893	Jewellers Weekly	The Idaho Diamonds Fields	Jewellers Weekly, Vol. 15, No. 15, Jan. 4TH. P. 8.	United States, Idaho, Rocky Mountains	Legal
DS1860-0784 1893	Jewellers Weekly	The Idaho Diamond Fields (1893)	Jewellers Weekly, Vol. 15, No. 17, Jan. 18TH. P. 7.	United States, Idaho, Rocky Mountains	Legal
DS1860-0289 1878	Journal of Applied Science	Diamonds in California, 1878 El Dorado	Journal of Applied Science, Vol. 9, SEPT. 2, P. 144.	United States, California	Diamond Occurrence
DS1860-0595 1888	Kemp, J.F.	The Dikes of the Hudson River Highlands	American Naturalist., Vol. 22, PP. 691-698.	United States, New York	Geology, Related Rocks
DS1860-0702 1891	Kemp, J.F.	Peridotite Dikes in the Portage Sandstones Near Ithaca	American Journal of Science, SER. 3, Vol. 42, PP. 410-412.	United States, New York	Geology, Related Rocks
DS1860-0703 1891	Kemp, J.F.	The Basic Dikes Occurring Outside Syenite Areas of Arkansas	Arkansaw Geological Survey Report FOR 1890, Vol. 2, CHAPTER 12, PP. 392-406.	United States, Arkansas	Mineralogy, Petrology
DS1860-0759 1892	Kemp, J.F.	Inclusions in Crystalline Rocks	New York Academy of Sciences, Vol. 11, P. 126.	United States, New York	Diamond Occurrence
DS1860-0893 1895	Kemp, J.F.	Petrography of the Dewitt Dyke	American Journal of Science, SER. 3, Vol. 49, PP. 457-462. ALSO: Geological Society of America (GSA)	United States, New York	Geology, Related Rocks
DS1860-0943 1896	Kemp, J.F.	The Leucite Hills of Wyoming	Geological Society of America (GSA) Bulletin., Vol. 8, PP. 169-182. (PP. 175-178).	United States, Wyoming	Petrology
DS1860-0894 1895	Kemp, J.F., Darton, N.P.	A New Intrusive Rock Near Syracuse	Science., NEW SER. Vol. 2, PP. 65-66.	United States, New York	Geology
DS1860-0704 1891	Kemp, J.F., Marsters, V.F.	The Trap Dikes in the Lake Champlain Valley and the Neighbouring Adirondacks.	New York Academy of Sciences Transactions, Vol. 11, PP. 13-23.	United States, New York	Geology, Related Rocks
DS1860-0801 1893	Kemp, J.F., Marsters, V.F.	The Trap Dikes of the Lake Champlain Region	United States Geological Survey (USGS) Bulletin., No. 107, PP. 11-62.	United States, New York, Vermont	Geology, Related Rocks
DS1860-0944 1896	Kemp, J.F., White, T.G.	A Dike in the Adirondack Region	Science., NEW SER, Vol. 3, P. 214.	United States, New York	Geology
DS1860-0705 1891	Kemp, J.F., Williams, J.F.	Tabulation of the Dikes of Igneous Rocks of Arkansaw	Arkansaw Geological Survey Report FOR 1890, Vol. 2, CHAPTER 13, PP. 407-432.	United States, Gulf Coast, Arkansas	Mineralogy, Petrology
DS1860-0051 1867	Kerr, W.C.	Report on the Progress of the Geological Survey of North Carolina.	Raleigh: W.e. Pell State Printer., 56P.	United States, North Carolina	Diamond Occurrence
DS1860-0296 1878	Kerr, W.C.	Our Mineral Wealth	South Atlantic., Vol. 2, OCTOBER PP. 484-495.	United States, North Carolina	Diamond Occurrence
DS1860-0318 1879	Kerr, W.C.	Physiographical Description	Handbook of North Carolina, Raleigh News Steam Book And Job, 291P.	United States, North Carolina	Diamond Occurrence
DS1860-0184 1872	King, C.	Copy of Official Letter Addressed November 11th to the Board	San Francisco Archives, 12P.	United States, California	History
DS1860-0297 1878	Koenig, G.A.	Mineralogical Notes	Academy Natural Sciences Philadelphia Proceedings, PP. 292-293.	United States, Arkansas, Pennsylvania	Diamond Occurrence
DS1860-0375 1882	Kunz, G.F.	Diamonds in Colorado	U.S.G.S. Mineral Resources of The United States In 1882, P. 484.	United States, Colorado, Rocky Mountains, Puerto Rico	Diamond Occurrence
DS1860-0404 1883	Kunz, G.F.	Diamond in Missouri	U.S.G.S. 'Mineral Resources of The United States In 1882, PP. 484-485.	United States, Missouri, North Carolina, Virginia	Diamond Occurrence
DS1860-0413 1883	Kunz, G.F.	Diamond Found at Blackfoot, Deer Lodge County, Montana	Mineral Resources of the United States for 1882, PP. 30-31.	United States, Montana	Diamond Occurrence
DS1860-0414 1883	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1882	Mineral Resources of The United States For 1882; Part 2, PP. 482-503.	United States, Virginia, North Carolina, Georgia, Colorado, California	Diamond Occurrence
DS1860-0442 1884	Kunz, G.F.	A Letter to the New York Sun by C. Leventhorpe Mentions a Fine White diamond Found in a South Carolin a Placer by Mr. Twitty	Mineral Resources of The United States For 1883, Part 2, Non, PP. 729-730.	United States, South Carolina	Diamond Occurrence
DS1860-0454 1885	Kunz, G.F.	Diamonds in California, 1883-1884	U.S.G.S. Mineral Resources of The United States 1883-1884, PP. 728-733.	United States, California, West Coast Rocky Mountains, Montana, Oregon, Colorado	Diamond Occurrence
DS1860-0472 1885	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1883-84	Mineral Resources of The United States For 1883-1884; Part 2, PP. 723-782.	United States	Diamond Occurrence
DS1860-0473 1885	Kunz, G.F.	Diamonds in Arizona	Mineral Resources of The United States For 1883-1884, P. 733.	United States, Arizona, Colorado Plateau	Diamond Occurrence
DS1860-0474 1885	Kunz, G.F.	Eagle Diamond of 15 Carats from Waukesha County, Wisconsin	Mineral Resources of The United States For 1883/1884, PART 2, NONMETALS, PP. 732-733.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0514 1886	Kunz, G.F.	Rare Gems and Interesting Minerals	New York Academy of Sciences Transactions, Vol. 51, PP. 213-214.	United States	Diamond Mineralogy
DS1860-0515 1886	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1885	Mineral Resources of The United States For 1885: Part 2, Non, PP. 437-444.	United States, Illinois	Diamond Occurrence
DS1860-0536 1887	Kunz, G.F.	Peridotite Occurrences in Kentucky	U.S.G.S. Mineral Resources of The United States For 1886, PP. 599-601.	United States, Kentucky	geology
DS1860-0557 1887	Kunz, G.F.	A North Carolina Diamond. #1 McDowell County	Science., Vol. 10, SEPT. 30TH. No. 243, P. 168. ALSO: American Journal	United States, North Carolina	Diamond Occurrence
DS1860-0558 1887	Kunz, G.F.	Precious Stones in the United States	Harpers Magazine., Vol. 76, DECEMBER PP. 97-106. ALSO: Neues Jahrbuch f?r Mineralogie	United States, California	Diamond Occurrence
DS1860-0581 1888	Kunz, G.F.	Precious Stones (1888)	U.S.G.S. Mineral Resources of The United States For 1887, PP. 588-589.	United States, Georgia	Diamond Occurrences
DS1860-0596 1888	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1887	Mineral Resources of The United States For 1887: Part 2, Non, PP. 558-559.	United States	Diamond Occurrence
DS1860-0615 1889	Kunz, G.F.	Precious Stones 1889	U.S.G.S.Mineral Resources of The United States For 1888, P. 580.	United States, Georgia, Appalachia	Diamond Occurrences
DS1860-0634 1889	Kunz, G.F.	Mineralogical Note on Fluorite, Opal, Amber and Diamond Russell County	American Journal of Science, Vol. 3, PP. 72-74.	United States, Kentucky	Diamond Occurrence
DS1860-0635 1889	Kunz, G.F.	Mineralogical Notes on Fluorite, Opal, Amber and Diamond	American Journal of Science, 3RD. Vol. 38, PP. 72-74.	United States, Kentucky	Diamond Occurrence
DS1860-0650 1890	Kunz, G.F.	Origin illustrations of Dysortville North Carolina Diamond	G.F. Kunz Collection., 3 ILLUSTRATIONS.	United States, North Carolina	Diamond Occurrence
DS1860-0664 1890	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1888	Mineral Resources of The United States For 1888: Part 2, Non, PP. 580-585.	United States	Diamond Occurrence
DS1860-0665 1890	Kunz, G.F.	Gems and Precious Stones of North America	New York: Dover Edition 1969,	United States, Canada, Indiana, Ohio, Great Lakes	Gemology, Diamond Occurrence
DS1860-0666 1890	Kunz, G.F.	Diamond Discovery Near Waukesha, Wisconsin	In: Gems And Precious Stones, P. 35.	United States, Wisconsin	Diamond Occurrence
DS1860-0709 1891	Kunz, G.F.	Ueber Neuer Nordamerikanische Edelstein Vorkommen	Zeitschr. Kryst. (leipzig), Vol. 19, PP. 478-482. ALSO: Neues Jahrbuch f?r Mineralogie, BD. 1, PP. 25	United States, Wisconsin	Diamond Occurrence
DS1860-0710 1891	Kunz, G.F.	On the Occurrence of Diamonds in Wisconsin	Geological Society of America (GSA) Bulletin., Vol. 2, PP. 638-639.	United States, Wisconsin	Diamond Occurrence
DS1860-0761 1892	Kunz, G.F.	Expert Kunz Skeptical Regarding the Idaho Diamond Finds	Jewellers Circular Keystone, Vol. 25, No. 21, Dec. 21ST. P. 12.	United States, Idaho	Diamond Occurrence
DS1860-0762 1892	Kunz, G.F.	Diamonds from Plum Creek, Pierce County, Wisconsin	Mineral Resources of The United States For 1892, PART 2, NONMETALS, PP. 541-542.	United States, Wisconsin, Great Lakes, Arizona, Colorado Plateau, Kentucky	Diamond Occurrence
DS1860-0803 1893	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1892 Black Carbonaceous shale	Mineral Resources of The United States For 1892: Part 2, Non, PP. 756-781.	United States, Africa, South Africa	Diamond, Genesis
DS1860-0834 1894	Kunz, G.F.	Diamond in North Carolina. #2	U.S.G.S. Mineral Resources of The United States For 1893, P. 683.	United States, North Carolina, Appalachia, California, West Coast, Montana	Diamond Occurrence
DS1860-0850 1894	Kunz, G.F.	Diamond Occurrence	Mineral Resources of The United States For 1893: Part 2, Non, PP. 682-683.	United States, Wisconsin	Diamond Occurrence
DS1860-0851 1894	Kunz, G.F.	Mineralogical Notes: Diamonds from Wisconsin	New York Academy of Sciences Transactions, Vol. 13, PP. 144-145.	United States, Wisconsin	Mineralogy, Diamond
DS1860-0881 1895	Kunz, G.F.	Montana (1895)	U.S.G.S. Minreral Resources of The United States In 1894, PP. 595-597.	United States, Montana, Rocky Mountains, Alberta, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0897 1895	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1894	Mineral Resources of The United States For 1894: Part 2, Non, PP. 595-605.	United States	Diamond Occurrence
DS1860-0921 1896	Kunz, G.F.	Diamonds in California, 1895	U.S.G.S. Mineral Resources of The United State For 1895, 17TH. ANNUAL REPORT, PT. 3, P. 896.	United States, California, West Coast, Tulare, Montana, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0945 1896	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1895 Jagersfontein, Koffiefontein, Excelsior, Reitz	Mineral Resources of The United States For 1895: Part 2, Non, PP. 895-926.	United States, Africa, South Africa, Botswana	Diamond mining
DS1860-0969 1897	Kunz, G.F.	Diamonds in Montana	U.S.G.S. Mineral Resources of The United States In 1896, 18TH. ANNUAL REPORT, PT. 5, PP. 1183-1185.	United States, Montana, Rocky Mountains, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0994 1897	Kunz, G.F.	The Genesis of the Diamond - Kunz (1897)	Science., N.S. Vol. 6, SEPT. 17TH. PP. 450-456.	United States, Arizona, Kentucky, New York	Diamond genesis
DS1860-0995 1897	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1896 Bingara, Boggy Camp,	Mineral Resources of The United States For 1896: Part 2, Non, PP. 1183-1217.	Africa, South Africa, United States, Australia	Moissanite
DS1860-1036 1898	Kunz, G.F.	Geography of Precious Stones	Journal of Franklin Institute, Philadekphia, Vol. 145, Jan., PP. 24-35; Feb. PP. 133-143.	United States	Gemology
DS1860-1092 1899	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1898	Mineral Resources of The United States For 1898: Part 2, Non, PP. 557-602.	United States, Africa, South Africa, South America, Brazil, Australia, Russia	Diamond Occurrence
DS1860-0804 1893	Kunz, G.F., Huntington, O.W.	On the Diamond in the Canon Diablo Meteoritic Iron	American Journal of Science SER. 3, N.S. 3, Vol. 46, PP. 470-473.	United States, Arizona, Colorado Plateau	Meteorite
DM1860-1146 1883	Leventhorpe, C.	Southern Diamond Fields. Diamonds Found in North and South Carolina and in Georgia.	New York Sun., AUGUST 5TH.	United States, North Carolina, South Carolina, Georgia	Diamond Occurrence
DS1860-0996 1897	Lewis, H. Carvill.	Kimberlite from the United States	In: The Genesis And Nature of The Diamond. Bonney, T.g. Edit, SECTION 3, PP. 61-67.	United States, Kentucky	Geology
DS1860-0997 1897	Lewis, H. Carvill.	Papers and Notes on the Genesis and Matrix of the Diamond	London: Longmans Green And Co., 72P. ALSO: STH. AFR. PHIL. SOC. Transactions, Vol. 10, No.	Africa, South Africa, Cape Province, United States, Kentucky	Mineralogy
DS1860-0668 1890	Lindsey, T.H.	Lindsey's Guide Book to Western North Carolina	Asheville: Randolph Kerr Printing Co., 92P.	United States, North Carolina	Travelogue
DM1860-1106 1862	London Mining Journal	Mineral Wealth of California	London Mining Journal, Vol. 32, MARCH 29TH. P. 216.	United States, California, West Coast	Diamond Occurrence
DM1860-1128 1872	London Mining Journal	The Diamond Wonder	London Mining Journal, Vol. 42, AUGUST 31ST. PP. 830-831.	United States, Arizona, Colorado Plateau	Diamond Occurrence
DM1860-1129 1872	London Mining Journal	Diamonds in California, 1872	London Mining Journal, Vol. 42, SEPT. 7TH. P. 858.	United States, California, West Coast	Diamond Occuurence
DM1860-1135 1873	London Mining Journal	The Attempted Diamond Swindle in Colorado	London Mining Journal, Vol. 43, MARCH 8TH. P. 266.	United States, Colorado, Colorado Plateau, Rocky Mountains	Legal
DM1860-1136 1874	London Mining Journal	History of the Diamond Scandal of California	London Mining Journal, Vol. 44, AUGUST 15TH. P. 874.	United States, California, West Coast	Legal
DM1860-1137 1874	London Mining Journal	The Diamond Swindle Case	London Mining Journal, Vol. 44, AUGUST 22ND. P. 917. ALSO: Mining and Scientific Press, V	United States, California, West Coast	Legal
DM1860-1138 1875	London Mining Journal	The Diamond Fraud Trial	London Mining Journal, Vol. 45, Jan. 23RD. P. 100.	United States, California, West Coast	Legal
DM1860-1139 1875	London Mining Journal	The Diamond Swindle Libel Case	London Mining Journal, Vol. 45, Jan. 23RD. P. 86.	United States, California, West Coast	Legal
DS1860-1094 1899	Low, A.P.	The Source of the Diamond Bearing Drift of Wisconsin	Geological Survey of Canada SUMMARY Report FOR 1899, Vol. 12, Report A, PP. 1A-224A.	Canada, Ontario, James Bay Lowlands, Moose River, United States, Wisconsin	Geomorphology
DS1860-0782 1893	Manufactures Jewellers	Salting the Idaho Mines	Manufacturers Jewellers, Vol. 12, Feb. 1ST. P. 173.	United States, Idaho, Rocky Mountains	Legal
DS1860-0832 1894	Manufactures Jewellers	Diamonds Near Cornishville Kentucky	Manufacturer Jewellers, Oct. 5TH.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1860-0900 1895	Marsters, V.F.	Camptonite and other Intrusives of Lake Memphremagog	American GEOLOGIST., Vol. 16, PP. 25-39.	Canada, Quebec, United States, Vermont	Related Rocks
DS1860-0901 1895	Marsters, V.F.	Comptonite and other Intrusives of Lake Memphremagog	American Geologist., Vol. 16, PP. 25-39.	United States, New York	Petrology
DM1860-1144 1880	Mcclelland, R.G.	The Golden State: a History of the Region West of the Rocky	Philadelphia: W. Flint., 685P.	United States, California, West Coast, Amador	Blank
DS1860-0268 1876	Mccutcheon, A.R.	Geological Survey of the State	Handbook of The State of Georgia., ATLANTA: NEW YORK CITY: RUSSELL BROS., 256P.	United States, Georgia	Diamond Occurrence
DS1860-1067 1899	Milwaukee Sunday Sentinal	Diamond Fields of the Great Lakes. #2	Milwaukee Sunday Sentinel, SECT. II, JUNE 11TH.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0787 1893	Minerals	Idaho Diamond Fields	Minerals, Vol. 3, PP. 320-321.	United States, Idaho, Rocky Mountains	Legal
DS1860-0015 1865	Mining and Scientific Press	Agates and Diamonds	Mining and Scientific Press, Vol. 11, Dec. 16TH. P. 369.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0022 1866	Mining and Scientific Press	Diamonds in Georgia. #3	Mining and Scientific Press, Oct. 20TH.	United States, Georgia, Appalachia	Diamond Occurrence
DS1860-0024 1866	Mining and Scientific Press	The Diamond Fever	Mining and Scientific Press, Vol. 12, Jan. 6TH. P. 6.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0025 1866	Mining and Scientific Press	The Diamond Hunt at Owyhee	Mining and Scientific Press, Vol. 12, MARCH 17TH. P. 174.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0041 1867	Mining and Scientific Press	Diamonds in Amador County	Mining and Scientific Press, Vol. 15, AUGUST 24TH. P. 127.	United States, California, West Coast, Amador	Diamond Occurrence
DS1860-0046 1867	Mining and Scientific Press	Diamond in Mississippi	Mining and Scientific Press, Vol. 15, Nov. 2ND. P. 283.	United States, Mississippi, Gulf Coast	Diamond Occurrence
DS1860-0100 1870	Mining and Scientific Press	California Diamonds, 1870	Mining and Scientific Press, Vol. 20, MARCH 26TH. No. 13, P. 194.	United States, California, Nevada, West Coast, Montana, Placer, Amador, Klamath	Blank
DS1860-0122 1871	Mining and Scientific Press	Searching for Diamonds	Mining and Scientific Press, Vol. 22, JUNE 10TH. P. 358.	United States	Diamond prospecting
DS1860-0133 1871	Mining and Scientific Press	Diamonds in Trinity County, California	Mining and Scientific Press, Vol. 22, MARCH 4TH. P. 140.	United States, California	Diamond Occurrence
DS1860-0170 1872	Mining and Scientific Press	The Arizona Diamond Fields, Colorado	Mining and Scientific Press, Vol. 25, P. 316.	United States, Arizona, Colorado, Colorado Plateau	Diamond Occurrence
DS1860-0172 1872	Mining and Scientific Press	The Diamond Swindle	Mining and Scientific Press, Vol. 25, P. 344.	United States, California, West Coast	Legal
DS1860-0173 1872	Mining and Scientific Press	Legends of the Yellowstone	Mining and Scientific Press, Vol. 24, APRIL 20TH. P. 246.	United States, Rocky Mountains	History
DS1860-0195 1873	Mining and Scientific Press	Report on Silliman's Verdict on So Called Diamonds, Rubies And Emeralds from Arizona.	Mining and Scientific Press, Vol. 27, AUGUST 16TH. P. 99.	United States, Arizona, Colorado Plateau	History
DS1860-0196 1873	Mining and Scientific Press	Gravel Mines	Mining and Scientific Press, Vol. 27, AUGUST 2ND. P. 66.	United States, California, Montana	Diamond Occurrence
DS1860-0197 1873	Mining and Scientific Press	Diamonds in Hydraulic Washings	Mining and Scientific Press, Vol. 27, JULY 19TH. P. 40.	United States, California, West Coast, Montana	Diamond recovery
DS1860-0307 1879	Mining and Scientific Press	The End of a Swindler	Mining and Scientific Press, Vol. 38, MARCH 8TH. P. 145.	United States, California, West Coast	Legal
DS1860-0401 1883	Mining and Scientific Press	Butte County Minerals	Mining and Scientific Press, Vol. 47, SEPT. 1, P. 137.	United States, California, West Coast	Diamond Occurrence
DS1860-0402 1883	Mining and Scientific Press	The Mineral Exposition, Butte County	Mining and Scientific Press, Vol. 47, AUGUST 25TH. P. 121.	United States, California, West Coast, Montana	Diamond Occurrence
DS1860-0403 1883	Mining and Scientific Press	Disposal of Tailings	Mining and Scientific Press, Vol. 47, Nov. 17TH. P. 324.	United States, California, West Coast, Montana	Diamond Occurrence
DS1860-0426 1884	Mining and Scientific Press	Minor Minerals of the Pacific Coast	Mining and Scientific Press, Vol. 48, MARCH 29TH. P. 226.	United States, Rocky Mountains	Diamond Occurrence
DS1860-0733 1892	Mining and Scientific Press	The Idaho Diamond Fields	Mining and Scientific Press, Vol. 65, Dec. 24TH. P. 411.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0878 1895	Mining and Scientific Press	Diamonds in California; February, 1895	Mining and Scientific Press, Vol. 70, Feb. 16TH. P. 102.	United States, California, West Coast, El Dorado	Diamond Occurrence
DS1860-0879 1895	Mining and Scientific Press	Pacific Coast Diamonds	Mining and Scientific Press, Vol. 71, JULY 6TH. P. 12.	United States, California, West Coast, El Dorado	Diamond Occurrence
DS1860-0968 1897	Mining and Scientific Press	California Diamonds, 1897	Mining and Scientific Press, Vol. 74, MARCH 13, P. 213.	United States, California, West Coast	Diamond Occurrence
DM1860-1147 1883	Moon, H.	Metals in the South Eastern States of America	London Mining Journal, Vol. 53, SEPT. 29TH. P. 1134.	United States, Massachusetts	Diamond Occurrence
DS1860-0343 1880	Mudge, B.F.	Metamorphic Deposit in Woodson County	Kansas Academy of Science Transactions, Vol. 7, PP. 11-13.	United States, Kansas	Diamond Occurrence
DS1860-0534 1887	New York Academy of Science	Diamonds in California, 1887	New York Academy of Sciences Transactions, FOR 1884-1885, Vol. 4, P. 35.	United States, California, West Coast, Virginia, Montana	Diamond Occurrence
DS1860-0923 1896	New York Commercial Advisor	Find of Diamonds	New York Commercial Advertiser., Oct. 2ND.	United States, Montana, Rocky Mountains	Diamond Occurrence
DM1860-1159 1890	New York Journal ofn Commerce	Diamonds in Indiana, 1890	New York Journal of Commerce., Dec. 20TH.	United States, Indiana, Great Lakes	Diamond Occurrence
DM1860-1163 1891	New York Sun	Millions in Gold and Gems. a Wonderful New El Dorado in The North Carolina Mountains.	New York Sun., JUNE 7TH.	United States, North Carolina, Appalachia	Diamond Occurrence
DM1860-1176 1895	New York Sun	Diamonds Near Cape Nome	New York Sun., MARCH 27TH.	United States, Alaska	Diamond Occurrence
DM1860-1175 1895	New York Times	Diamonds Discovered on Mt. Edgecombe	New York Times, Feb. 12TH.	United States, Alaska	Diamond Occurrence
DM1860-1182 1897	New York Times	A Large Rough Diamond Found	New York Times, Jan. 5TH.	United States, Ohio, Great Lakes	Diamond Occurrence
DM1860-1154 1888	New York Tribune	A Supposed Diamond Found	New York Tribune., SEPT. 17TH. ALSO: WASHINGTON POST, SEPT. 18TH.	United States, Montana, Rocky Mountains, Heraldson	Diamond Occurrence
DS1860-0489 1886	New York Tribune	A Hundred Thousand Dollar Diamond	New York Tribune., AUGUST 9TH.	United States, Appalachia, Ohio	Diamonds Notable
DM1860-1169 1893	New York World	Found Salted Diamonds	New York World., MARCH 24TH.	United States, Georgia, Appalachia	Legal
DM1860-1179 1896	New York World	Diamonds from Montana	New York World., Oct. 2ND.	United States, Montana, Rocky Mountains	Diamond Occurrence
DS1860-0674 1890	Nichols, G.H.	An Occurrence of Diamonds in Wisconsin Left Out of Review In Gems and Precious Stones of North America.	Engineering and Mining Journal, Dec. 13TH, P. 686.	United States, Wisconsin	Diamond Occurrence
DS1860-0257 1876	North Carolina Bureau of Mines	North Carolina: its Resources and Progress; its Beauty, Healthfulness and Fertility; and its Attractions and Advantages as a Home for Immigrants.	North Carolina: Bureau of Immigration, Statistics And Agriculture, 107P.	Africa, United States, North Carolina	Diamond Occurrence
DM1860-1166 1891	North Carolina Gold Mining And Bulletinion Co. (new York)	The Gold Fields of North Carolina	New York:, 24P.	United States, North Carolina	Alluvial placers
DS1860-0639 1889	Northrup, E.B.	The Precious and Ornamental Stones of Montana	Northwest Magazine, Vol. 7, No. 4, APRIL PP. 3-4. ALSO: JEWELLERS WEEKLY, Vol. 8	United States, Montana	Diamond Occurrence
DS1860-0586 1888	Northwest Magazine	The Montana Diamond	Northwest Magazine, Vol. 6, No. 6, JUNE P. 6.	United States, Montana	Diamond Occurrence
DS1860-0781 1893	Northwest Magazine	Diamonds in Idaho, February, 1893	Northwest Magazine, Vol. 11, No. 2, FEBRUARY P. 32.	United States, Idaho, Rocky Mountains	Legal
DS1860-1095 1899	Norton, T.H.	Diamond Found Near Milford Ohio	Letter To G.f. Kunz, Jan. 17TH. AND ANOTHER LETTER 1900, MARCH 9TH.	United States, Ohio	Diamond Occurrence
DS1860-1015 1898	Ohio State Journal	A Rough Diamond	Ohio State Journal, Nov. 27TH.	United States, Ohio, Great Lakes	Diamond Occurrence
DM1860-1178 1895	Osborn, H.S.	A Practical Manual of Minerals, Mines and Mining	Philadelphia: H.c. Baird And Co., 369P.	United States	Mining Methods
DS1860-0005 1860	Owen, D.D.	Second Report of a Geological Reconnaissance of the Middle And Southern Counties of Arkansas Made During the Years 1859- 1860.	United States Geological Survey (USGS) SECOND REPORT., 32P.	United States, Arkansas	Regional Geology
DS1860-0855 1894	Palache, C.	The Lherzolite Serpentine and Associated Rocks of the Potero,San Francisco.	University California Department Geological Science Bulletin, No. 1, PP. 161-179.	United States, California	Regional Geology
DM1860-1160 1891	Philadelphia Press	Diamonds Fall from the Stars. Little Ones Found in a Meteorite and the Wonders they Suggest.	Philadelphia Press, SEPT. 4TH.	United States	Meteorite
DM1860-1162 1891	Philadelphia Press	Diamonds in Indiana, 1891	Philadelphia Press, Feb. 4TH.	United States, Indiana, Great Lakes	Diamond Occurrence
DM1860-1170 1893	Philadelphia Times	A North Carolin a Diamond. #2	Philadelphia Times, AUGUST 13TH.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1860-0214 1873	Raymond, R.W.	Have We Diamonds in California?	Statistics of Mines And Mining In The States And Territories, PP. 27-28.	United States, California	Diamond Occurrence
DS1860-0215 1873	Raymond, R.W.	A Report upon the Mineral Resources of the States and Territories West of the Rocky Mountains for the Year 1871	U.s. Treasury Department, 566P.	United States, California	Diamond Occurrence
DS1860-0253 1875	Raymond, R.W.	Diamonds	Statistics of Mines And Mining In The States And Territories, HOUSE EXECUTIVE DOCUMENT 177, P. 150.	United States, California	Diamond Occurrence
DS1860-1066 1899	Rochester Democrat Chronicle	Diamond Found in the Lake Region With Valuable Gem Discussio	Rochester Democrat Chronicle., JULY 3RD.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0087 1869	Roessler, A.R.	Diamonds in Georgia. #4	American Journal of MIN., Vol. 7, APRIL 3RD. P. 213.	United States, Georgia	Diamond Occurrence
DS1860-0564 1887	Rosenbuach, H.	Mikroskopische Physiographie der Massigen Gesteine Magnet Cove nepheline syenite	Privately Publishing Stuttgart, Germany,	United States, Arkansas	Mineralogy
DS1860-0856 1894	Rutley, F.	On the Origin of Certain Novaculites and Quartzites	Geological Society of London Quarterly Journal, Vol. 50, PP. 377-392. ALSO: abstract. IN Geology Magazine, Vol. 4, NO	United States, Arkansas	Petrology
DS1860-0088 1869	Safford, J.M.	Geology of Tennessee	Nashville: Mercer Publishing,	United States, Tennessee	Geology
DS1860-0533 1887	San Francisco Bulletin	A California Diamond	San Francisco Bulletin., AUGUST 11TH.	United States, California, West Coast, Amador	Diamond Occurrence
DS1860-0582 1888	San Francisco Bulletin	Precious Stones, Diamonds, Rubies, Sapphires and Other Gemsin Georgia.	San Francisco Bulletin., AUGUST 4TH.	United States, Georgia	Gemology
DS1860-0828 1894	San Francisco Bulletin	Diamond Found in California	San Francisco Bulletin, Dec. 12TH.	United States, California, West Coast, El Dorado	Diamond Occurrence
DS1860-0729 1892	San Francisco Examiner	Snake River Diamonds	San Francisco Examiner., Dec. 10TH.	United States, Idaho, Central States	Diamond Occurrence
DS1860-0732 1892	San Francisco Examiner	Idaho's Diamond Fields	San Francisco Examiner., Dec. 8TH.	United States, Idaho, Rocky Mountains	Diamond Occurrence
DS1860-0723 1892	San Francisco Post	Idaho's Gems. Prospect for Big Diamond Discoveries	San Francisco Post., Dec. 9TH.; ROCKY MOUNTAINS	United States, Idaho	Prospecting
DS1860-1007 1897	Schneider, P.F.	A Geological Fault at Jamesville Near Syracuse New York	American Journal of Science, N.S. 4 Vol. 3, PP. 458-460.	United States, New York	Geology
DS1860-0535 1887	Scientific American	The Diamond Mines of Wisconsin	Scientific American Supplement., Vol. 23, MARCH 5TH. PP. 9307-9308.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0835 1894	Scientific American	An Oregon Diamond	Scientific American., Vol. 70, MARCH 10TH. P. 149.	United States, Wisconsin, Great Lakes, Oregon	Diamond Occurrence
DS1860-0492 1886	Sharswood, W.	Diamonds in North Carolina. #1	Newspaper Clipping Sent From W. Sharswood, Danbury North Car,	United States, North Carolina, Appalachia	Diamond Occurrence
DS1860-0053 1867	Silliman, B. JR.	Notice of New Localities of Diamonds in California	California Academy of Science Proceedings, Vol. 3, PP. 354-355.	United States, California	Diamond Occurrence
DS1860-0054 1867	Silliman, B. JR.	On New Localities of Diamonds in California	American Journal of Science, 2ND. SER., Vol. 44, P. 119.	United States, California	Diamond Occurrence
DS1860-0216 1873	Silliman, B. JR.	Mineralogical Notes on Utah, California, and Nevada	Engineering and Mining Journal, Vol. 17, P. 148, MARCH 11. ALSO: American Journal of Science, 3RD. SER.	United States, California, Utah, Nevada	Mineralogy
DS1860-0217 1873	Silliman, B. JR.	On the Probable Existence of Microscopic Diamonds with Zircons and Topaz in the Sands of Hydraulic Washings in California.	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Transactions, Vol. 1, PP. 371-373.	United States, California	Alluvial Placers
DS1860-0284 1877	Simonds, F.W.	The Geology of Ithaca, New York and the Vicinity	Bsc. Thesis, Cornell University, ALSO Publishing BY RIVERSIDE PRESS, CAMBRIDGE, 49P.	United States, New York	Regional Geology
DS1860-0769 1892	Smalley, E.V.	Mining for Montana Gems	Northwest Magazine, Vol. 10, No. 1, JANUARY PP. 26-27.	United States, Montana	Gemology
DS1860-0525 1886	Smith, C.D.	The Gemstones of North Carolina Piedmont	Dixie., Vol. 2, No. 1, PP. 5-7.	United States, North Carolina	Diamond Occurrence
DS1860-0123 1871	Smithsonian Institute	Translated by J. Stearns	Smithsonian Institute Annual Report Board of Regents For The Year 1, PP. 333-363.	United States	Diamond prospecting
DS1860-0772 1892	Smyth, C.H.JR.	A Third Occurrence of Peridotite in Central New York	American Journal of Science, SER. 3, Vol. 43, PP. 322-327.	United States, New York	Geology
DS1860-0814 1893	Smyth, C.H.JR.	Alnoite Containing an Uncommon Variety of Melilite	American Journal of Science, 3RD. SER. Vol. 46, PP. 104-107.	United States, New York	Alnoite
DS1860-0958 1896	Smyth, C.H.JR.	Note on a Recently Discovered Dike of Alnoite at Manheim, New York	American Journal of Science, SER. 4, Vol. 2, PP. 290-292.	United States, New York	Alnoite
DS1860-1046 1898	Smyth, C.H.JR.	Weathering of Alnoite in Manheim, New York	Geological Society of America (GSA) Bulletin., Vol. 9, PP. 257-268.	United States, New York	Alnoite
DS1860-1047 1898	Smyth, C.H.JR.	Weathering of Alnoite at Manheim	Geological Society of America (GSA) Bulletin., Vol. 9, PP. 257-268. ALSO: Journal of Geology, Vol. 6, PP. 331-332.	United States, New York	Alnoite
DM1860-1133 1872	Snively, J.H.	The Lost Diamond	Appleton's Journal, Vol. 8, Nov. 30TH. P. 608.	United States, Georgia	History
DS1860-0737 1892	St. Louis Globe Democrat	Diamonds in Nebraska	St. Louis Globe Democrat., Jan. 3RD.	United States, Nebraska, Central States	Diamond Occurrence
DS1860-1064 1899	St. Paul Minneapolis Globe	Diamonds in Wisconsin. #1	St. Paul Minneapolis Globe, SEPT. 10TH.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-1068 1899	St. Paul Minneapolis Globe	Diamonds found in 1899	St. Paul Minneapolis Globe, SEPT. 10TH.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1860-0606 1888	Stephenson, J.A.D.	Gems of North Carolina	Statesville: Written By G.f. Kunz, Dec. 17TH. 27P.	United States, North Carolina	Gemology
DS1860-0030 1866	Stephenson, M.F.	A Brief Historical Sketch of the Lewis Gold Mine White County, Georgia.	In: Adelber And Raymond Report On The Lewis Mine Property, Sto, PP. 15-16.	United States, Georgia	Geology
DS1860-0162 1871	Stephenson, M.F.	The Geology and Mineralogy of Georgia	Unknown.,	United States, Georgia	Diamond Occurrence
DS1860-0301 1878	Stephenson, M.F.	Diamonds and Precious Stones of Georgia. their Comparative V	Georgia, Gainsville: Eagle Job Office., 32P.	United States, Georgia	Diamond Occurrence
DS1860-0302 1878	Stephenson, M.F.	Diamonds and Precious Stones in Georgia	Gainesville: Eagle Job Office., 32P.	United States, Georgia, Virginia, North Carolina, South Carolina, Tennessee	Diamond Occurrence
DS1860-0924 1896	Stewart, M.I., Stewart, J.C.	North Carolina and Its Resources	Winston: M.I. And J.C. Stewart., 413P.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1860-0819 1893	Storms, W.H.	The Occurrence of Diamonds	Mining and Scientific Press, Vol. 66, Feb. 25TH. PP. 117-118.	United States, California	Diamond Occurrence
DS1860-0607 1888	Symonds, G.W.	Georgia Diamonds #2	San Francisco Chronicle., Nov. 8TH.	United States, Georgia	Diamond Occurrence
DS1860-0608 1888	Symonds, G.W.	Gems Found in Georgia and Stones of Finders	Detroit: Free Press, SEPT. 30TH.	United States, Georgia, North Carolina	Diamond Occurrence
DS1860-0009 1862	The Kansas City Star	Diamonds in California, 1862	The Kansas City Star, JUNE 18TH.	United States, California	Diamonds notable
DS1860-0580 1888	The San Francisco Call Database	California Diamonds. One of the Products of Butte and Amador Counties.	The San Francisco Call Database ., Oct. 23RD.	United States, California, West Coast	Diamond Occurrence
DS1860-0645 1889	Thompson, J.M.	Gold, Silver and Precious Stones	Indianapolis, Indiana., 16TH. ANNUAL REPORT P. 90.	United States, Indiana	Diamond Occurrence
DC1860-1192 1889	Tiffany And Co	Catalogue of Collection of Precious Stones	New York: Devine Press, 32P.	United States, Kentucky, Central States, California	Diamond Occurrence
DS1860-1102 1899	Turner, H.W.	The Occurrence and Origin of Diamonds in California	American GEOLOGIST, MARCH, PP. 182-191.	United States, California	Diamond Occurrence
DS1860-1103 1899	Turner, H.W.	The Occurrences and Origin of Diamonds in California	American GEOLOGIST., Vol. 23, MARCH PP. 182-191. ALSO Mining and Scientific Press, Vol.	United States, California	Diamond Occurrence
DS1860-0120 1870	Tyson, P.T.	Geology and Industrial Resources of California. to Which Is	Baltimore: W. Minifie Co., 127P. and 37P.	United States, California, Oregon	Diamond Occurrence
DS1860-0688 1891	U.S.G.S. Mineral Resources Yearbook	Diamonds in Meteorite, Canon Diable	U.S.G. Mineral Resources for the Year 1890-1891, PP. 541-2.	United States, Arizona, Colorado Plateau	Meteorite
DS1860-0735 1892	U.S.G.S. Mineral Resources Yearbook	Elliott County, Kentucky Peridotite	U.S.G.S. Mineral Resources of The United States For 1891, P. 542.	United States, Kentucky	Diamond Occurrence
DS1860-0736 1892	U.S.G.S. Mineral Resources Yearbook	Precious Stones 1891	U.S.G.S.Mineral Resources of The United States For 1891, PP. 540-541.	United States, Minnesota, Wisconsin, Great Lakes	Diamond Occurrence
DS1860-0779 1893	U.S.G.S. Mineral Resources Yearbook	Diamonds in Meteorite, Canon Diablo	U.S.G.S. Mineral Resources Yearbook, PP. 683-685.	United States, Arizona, Colorado Plateau	Meteorite
DS1860-0790 1893	U.S.G.S. Mineral Resources Yearbook	Diamonds in Kentucky, 1892	Mineral Resources of The United States For 1892, PP. 756-760.	United States, Kentucky, Appalachia, Virginia, Georgia, Great Lakes, Wisconsin	Diamond occurrence
DS1860-0963 1896	Weed, W.H., Pirsson, L.V.	Missourite a New Leucite Rock from the Highwood Mountains, Montana.	American Journal of Science, 4TH. SER., Vol. 2, PP. 315-323.	United States, Montana	Leucite
DS1860-0272 1877	West Review of Science	Diamond Hunting in Georgia	West Review of Science , Vol. 1, P. 316.	United States, Georgia	Diamond Occurrence
DS1860-0861 1894	West, K.	Repartition des Pierres Precieuse Aux Etats Unis	La Nature., Vol. 22, PT. 2, Nov. 17TH. P. 387.	United States	Diamond Occurrence
DS1860-0056 1867	Wetherill, C.M.	Experiments on Itacolumite (articulite) with the Explanation of its Flexibility and its Relation to the Formation of The Diamond.	American Journal of Science, N.S.2, Vol. 44, NOS. 130-132, PP. 61-68.	United States, North Carolina	Mineralogy
DS1860-0019 1865	Whitney, J.D.	Report of Progress and Synopsis of the Field Work from 1860-1864.	Geological Survey of CALIFORNIA, GEOLOGY REPORT., No. 1, P. 498, (abstract.).	United States, California	Diamond Occurrence
DS1860-0032 1866	Whitney, J.D.	Geological Survey of California: Report of Progress and Synopsis of Field Work from 1860-1864.	American Journal of Science, Vol. 41, 2ND. SER., P. 124; PP. 231-240; PP. 351-368.	United States, California	Diamond Occurrence
DS1860-0348 1880	Whitney, J.D.	The Auriferous Gravels of the Sierra Nevada of California	Cambridge : Memoirs of The Museum of Comparative Zoology At, Vol. VI, No. 1, 569.	United States, California, West Coast	Diamond Occurrence
DS1860-0349 1880	Whitney, J.D.	The Auriferous Gravels of the Sierra Nevada of California.	Cambridge University Press J. Wilson And Son.,	United States, California	Diamond Occurrence
DS1860-0570 1887	Williams, G.H.	On the Serpentine of Syracuse, New York	Science., Vol. 9, PP. 232-233.	United States, New York	Geology
DS1860-0571 1887	Williams, G.H.	On the Serpentine (peridotite) Occurring in the Onondaga Salt Group at Syracuse New York.	American Journal of Science, SER. 3, Vol. 34, PP. 137-145. ALSO: Neues Jahrbuch f?r Mineralogie, BD. 1	United States, New York	Geology, Petrology
DS1860-0572 1887	Williams, G.H.	Perofskit in Serpentine Peridotite von Syracuse, N.y	Neues Jahrbuch f?r Mineralogie, BD. 2, P. 263.	United States, New York	Mineralogy
DS1860-0681 1890	Williams, G.H.	Note on the Eruptive Origin of the Syracuse Serpentine	Geological Society of America (GSA) Bulletin., Vol. 1, PP. 533-534.	United States, New York	Related Rocks
DS1860-0720 1891	Williams, J.F.	The Igneous Rocks of Arkansaw	Arkansas Geological Survey Report FOR 1890, 432P.	United States, Arkansas	Regional Geology, Petrology, Mineralogy
DS1860-0721 1891	Williams, J.F.	Distribution and Petrographic Character of the Igneous Rocks from Pike County. Prairie Creek	Arkansas Geological Survey REPORT FOR 1890, Vol. 2, CHAPTER 11, PP. 376-391.	United States, Arkansas, Pennsylvania	Mineralogy, Petrology, Prairie Creek
DS1860-0482 1885	Yale, C.G.	California Diamonds, 1885	West American Scientist., Vol. 2, P. 60.	United States, California	Diamond Occurrence
DS1860-0271 1876	Zirkel, F.	Microscopical Petrography	United States Geological Survey (USGS) EXPED. 40TH. PARALLEL Report, PT. 6, PP. 259-261.	United States, Wyoming	Leucite
DS1900-0465 1907	American Diamond Company	Prospectus Adc 1907	Texarkana: American Diamond Company, 8P. 1 MAP.	United States, Gulf Coast, Arkansas, Pennsylvania	Economics
DS1900-0168 1903	American Exporter	Scientists Theory of American Diamond Fields	American EXPORTER., Vol. 51, No. 4, MARCH P. 24.	United States	Diamond Occurrence
DS1900-0173 1903	American Exporter	Diamonds Found in Oregon	American EXPORTER., Vol. 51, No. 4, MARCH P. 24.	United States, Oregon, Rocky Mountains	Diamond Occurrence
DS1900-0514 1907	American Geographical Society	Diamonds in Place in the United States	American GEOGRAPH. SOC. Bulletin., Vol. 39, PP. 742-743.	United States, Gulf Coast, Arkansas	Diamond Occurrence
DS1900-0103 1902	American Mining	Finds a Diamond Field. Gems of First Water Discovered in Montana.	American Mining News, Vol. 6, No. 139, Jan. 25TH. P. 1.	United States, Montana, Rocky Mountains, Fergus	Diamond Occurrence
DS1900-0169 1903	American Mining	Diamonds in California, 1903	American Mining , Vol. 7, No. 198, MARCH 14TH. P. 7.	United States, California, West Coast	Diamond Occurrence
DS1900-0641 1908	Arkansas Diamond Company	A Brief Account of the Discovery and Investigation and the Official Reports of Geologist and Mining Engineer on the Occurrence of Diamonds in Pike County, Arkansas.	Litte Rock: Central Publishing Co., 37P.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DM1900-1019 1908	Ashmead, E.	Twenty Five Years of Mining United States	London Mining Journal, Vol. 84, Nov. 28TH. PP. 678-679.	United States, Georgia, Appalachia	History
DS1900-0106 1902	Bailey, G.E.	California as a Gem State	Overland Month, N.S. Vol. 40, PP. 468-470.	United States, California, West Coast	Gemstone
DS1900-0308 1905	Barnett, V.H.	Notice of the Discovery of a New Dike at Ithaca, New York	American Journal of Science, SER. 4, Vol. 19, P. 210.	United States, Appalachia, New York, Finger Lakes	Petrography, Related Rocks
DS1900-0239 1904	Bauer, M., Spencer, L.J.	Precious Stonesá1904	Griffin And Co., INDIA PP. 140-155; Brasil PP. 155-179; SOUTH AFRICA PP. 179-	Australia, Borneo, Brazil, Guyana, India, South Africa, United States, Russia	Diamond Occurrence
DS1900-0240 1904	Beard, D.C.	Diamond from Indiana. #1	Letter To G.f. Kunz, Jan. 6TH.	United States, Indiana, Great Lakes	Diamond Occurrence
DM1900-1004 1906	Bell, R.	The Occurrence of Diamonds in the Drift of Some of the Northern States.	Canadian Mining Journal, Vol. 9, PP. 124-127. ALSO: Engineering and Mining Journal, Vol. 82, P. 819.	United States	Diamond Occurrence, Geomorphology
DM1900-1012 1907	Bell, R.N.	Sapphires in Idaho	Mining World., Vol. 26, APRIL 6TH. P. 449.	United States, Idaho, Rocky Mountains	Gemstone
DS1900-0645 1908	Beneke, A.	Neue Diamantenfunde in den Verrinigten Staaten	Zeitschrift Min., BD. 2, PP. 265-268.	United States, Appalachia	Geology
DS1900-0646 1908	Beneke, A.	Neue Diamantenfunde in den Vereinigten Staeten	Zeitschrift Min., Vol. 2, Oct. 30TH. PP. 265-268.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0053 1901	Blatchley, W.S.	Diamond Reported in 1876-1877 Near Morgantown	Letter To G.f. Kunz, APRIL 1ST.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0309 1905	Blatchley, W.S.	Diamond in Indiana. #1	Letter To G.f. Kunz, JUNE 24TH.	United States, Indiana, Great Lakes	Diamond Occurrence, Diamonds Notable
DS1900-0057 1901	Blue, A.	Source of Diamonds in Glacial Moraine	Mineral Resources of The United States For 1899, P. 8.	United States, Wisconsin, Ohio, Great Lakes, Canada	Diamond Occurrence
DS1900-0740 1909	Branner, J.C.	Bibliography of the Geology of Arkansas	Arkansas Geological Survey Bulletin., PP. 97-164.	United States, Gulf Coast, Arkansas	Bibliography
DS1900-0741 1909	Branner, J.C.	Some Facts and Corrections Regarding the Diamond Region of Arkansas.	Engineering and Mining Journal, Vol. 87, PP. 371-372.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, History
DS1900-0110 1902	Brooks, A.H.	Diamonds in Alaska; April, 1902	Letter To Dr. D.t.day, Chief of Mining And Mineral Resources, APRIL 3RD.	United States, Alaska	Diamond Occurrences
DS1900-0111 1902	Bruner, T.K.	List of North Carolina Diamonds	Letter To G.f. Kunz, Nov. 17TH.	United States, North Carolina, Appalachia, Minnesota	Diamond Occurrences
DS1900-0112 1902	Bruner, T.K.	Diamond from the J.a.d. Stephenson Collection	Letter To G.f. Kunz, Nov. 26TH.	United States, North Carolina, Appalachia, Minnesota	Diamond Occurrences
DS1900-0529 1907	Chamber's Journal	The Great Colorado Diamond Swindle	Chamber's Journal, Vol. 10, PP. 632-635.	United States, Wyoming, Rocky Mountains	Diamond Occurrence
DM1900-1011 1907	Chicago Chronicle	Diamond in Michigan	Chicago Chronicle., Oct. 18TH.	United States, Michigan, Great Lakes	Diamond Occurrence
DS1900-0651 1908	Clark, B.W.	The Peridotite Dikes of Onondaga County, New York	Msc. Thesis, Syracuse University,	United States, Appalachia, New York	Petrology
DS1900-0114 1902	Crook, A.R.	The Mineralogy of the Chicago Area	Chicago Acad. Sciences Natural History Survey Bulletin., No. 5, 54P.	United States, Illinois, Great Lakes	Geology
DS1900-0180 1903	Crook, A.R.	Diamonds Found Near Chicago	Popular Mech. Review., Vol. 4, No. 4, JULY 25TH. P. 55.	United States, Wisconsin, Illinois, Great Lakes	Diamond Occurrences
DS1900-0018 1900	Curtis, H.W.	A Rough Diamond Found at Luttrell, Tennessee	Jewellers Circular Keystone, Vol. 40, No. 7, MARCH 14TH. P. 7.	United States, Tennessee, Appalachia	Diamond Occurrences
DS1900-0316 1905	Cushing, H.P.	Geology of the Vicinity of Little Falls, Herkimer County, New York	New York State Mus. Bulletin., No. 77, GEOLOGY PT. 6, 95P.	United States, Appalachia, New York	Regional Geology
DS1900-0184 1903	Doran, S.	Diamonds in Painted Desert	Indust. Rec. Oil Review., Vol. 3, No. 26, SEPT. 5TH. P. 6.	United States, Arizona, Colorado Plateau	Diamond Occurrence
DS1900-0402 1906	Dryer, C.R.	The Geologic Features of the Finger Lake Region	Science., NEW SER. Vol. 23, P. 386.	United States, Appalachia, New York	Regional Geology
DM1900-1027 1909	Eberle, F.	The Arkansaw Diamond Fields 1909 - Mining World	Mining World., Vol. 31, PP. 285-286.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, Diamond Occurrence
DS1900-0658 1908	Emmerling, F.	Diamond in Ohio. #3	Letters To J.r. Wood., AUG. 10TH.; AUG. 17TH.; AUG. 22ND.; AUG. 29TH.	United States, Ohio, Great Lakes	Diamond Occurrences
DM1900-0982 1905	Engineering And Mining Journal	Diamonds in New York. #1	Engineering and Mining Journal, Vol. 80, Dec. 9TH. P. 1072.	United States, Appalachia, New York	Diamond Occurrences
DM1900-1014 1907	Engineering And Mining Journal	Diamonds in the Original Matrix	Engineering and Mining Journal, Vol. 84, Nov. 2ND. P. 829.	Australia, Bingara, Inverell, United States, Gulf Coast, Arkansas	Diamond Genesis
DS1900-0051 1901	Engineering And Mining Journal	Reported Diamond Discoveries in New Mexico	Engineering and Mining Journal, Vol. 71, Jan. 26TH. P. 129.	United States, New Mexico, Colorado Plateau	gemstone
DS1900-0302 1905	Engineering And Mining Journal	Diamonds in California, 1905	Engineering and Mining Journal, Vol. 80, Nov. 4TH. P. 845.	United States, California, West Coast, El Dorado, Montana	Diamond Occurrence, Diamonds Notable
DS1900-0381 1906	Engineering And Mining Journal	Diamonds in Butte County, 1906 #1	Engineering and Mining Journal, Vol. 82, Dec. 15TH. P. 1140.	United States, California, West Coast, Montana	Diamond Occurrence, Diamonds Notable
DS1900-0382 1906	Engineering And Mining Journal	Diamonds in Butte County, 1906 #2	Engineering and Mining Journal, Vol. 82, Oct. 13TH. P. 703.	United States, California, West Coast, Montana	Diamond Occurrence, Diamonds Notable
DS1900-0383 1906	Engineering And Mining Journal	Diamonds in San Diego County, Oct. 1906	Engineering and Mining Journal, Vol. 82, Oct. 27TH. P. 798.	United States, California, West Coast, San Diego	Diamond Occurrence, Diamonds Notable
DS1900-0384 1906	Engineering And Mining Journal	Diamonds in San Diego County, Sept. 1906	Engineering and Mining Journal, Vol. 82, SEPT. 29TH. P. 607.	United States, California, West Coast, San Diego	Diamond Occurrence, Diamonds Notable
DS1900-0393 1906	Engineering And Mining Journal	Diamonds in Kentucky, November, 1906	Engineering and Mining Journal, Vol. 82, Nov. 17TH. P. 946.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0509 1907	Engineering And Mining Journal	Diamonds in Butte County, 1907 #1	Engineering and Mining Journal, Vol. 84, AUGUST 10TH. P. 281.	United States, California, West Coast	Diamond Occurrence
DS1900-0510 1907	Engineering And Mining Journal	Diamonds in Butte County, 1907 #3	Engineering and Mining Journal, Vol. 83, APRIL 6TH. P. 681.	United States, California, West Coast, Montana	Diamond Occurrence
DS1900-0511 1907	Engineering And Mining Journal	Diamonds in Butte County, 1907 #4	Engineering and Mining Journal, Vol. 83, MARCH 2ND. P. 443.	United States, California, West Coast, Montana	Diamond Occurrence
DS1900-0512 1907	Engineering And Mining Journal	Diamonds in Butte County, 1907 #2	Engineering and Mining Journal, Vol. 83, MAY 11TH. P. 925.	United States, California, West Coast, Montana	Diamond Occurrence
DS1900-0520 1907	Engineering And Mining Journal	Diamonds in Arkansas, 1907	Engineering and Mining Journal, Vol. 84, AUGUST 10TH. P. 270.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0629 1908	Engineering And Mining Journal	United States Diamond Mining Company (1908)	Engineering and Mining Journal, Vol. 85, APRIL 11TH. P. 782.	United States, California, West Coast	Diamond Company
DS1900-0630 1908	Engineering And Mining Journal	Diamonds in California, 1908 #1	Engineering and Mining Journal, Vol. 85, Feb. 29TH. P. 475.	United States, California, West Coast	Diamond Occurrence
DS1900-0631 1908	Engineering And Mining Journal	Diamonds in California, 1908 #2	Engineering and Mining Journal, Vol. 85, Feb. 8TH. P. 332, 334.	United States, California, West Coast	Diamond Occurrence
DS1900-0632 1908	Engineering And Mining Journal	Diamonds; Engineering and Mining Journal, 1908	Engineering and Mining Journal, Vol. 86, Oct. 3RD. P. 685.	United States, California, West Coast	Diamond Occurrence
DS1900-0735 1909	Engineering And Mining Journal	Kimberlite Deposits of Eastern Kentucky	Engineering and Mining Journal, Vol. 88, Oct. 11TH. PP. 851-852.	United States, Appalachia	Diamond Occurrence
DS1900-0737 1909	Engineering And Mining Journal	Arkansaw- Pike County	Engineering and Mining Journal, Vol. 87, APRIL 24, No. 17, P. 870.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence, News Item
DS1900-0660 1908	Farrington, O.C.	Correlation of Distribution of Copper and Diamonds in the Glacial Drift of the Great Lakes Region.	Science., Vol. 27, MAY 8TH. P. 729.	United States, Great Lakes	Diamond Occurrence, Geomorphology
DS1900-0186 1903	Flannery, J.H.	Say They Have Found Diamond Mine	Manufacturer Jeweller., Vol. 33, Dec. 3RD. P. 716.	United States, Kentucky, Appalachia	Economics
DS1900-0552 1907	Fohs, F.J.	Fluorspar Deposits of Kentucky	Kentucky Geological Survey Bulletin., No. 9, 296P.	United States, Kentucky, Central States	Gemstones
DS1900-0663 1908	Fuller, J.T.	Report on the Property of the Arkansas Diamond Company	Little Rocks: Central Publishing Co., PP. 9-29.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting, Geology
DS1900-0750 1909	Fuller, J.T.	Diamond Mine in Pike County, Arkansas	Engineering and Mining Journal, Vol. 87, PP. 152-155; PP. 616-617.	United States, Gulf Coast, Arkansas, Pennsylvania	Mining, History, Catalogue Of Diamond Occurrences
DS1900-0190 1903	Gratacap, L.P.	A Possible Kimberley Diamond	Mineral. Coll., Vol. 10, JUNE PP. 60-61.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0407 1906	Graton, L.C.	Reconnaissance of Some Gold and Tin Deposits of the Southern Appalachians. with Notes on the Dahlonega Mines by W. Lindgren.	United States Geological Survey (USGS) Bulletin., No. 293, 134P.	United States, Appalachia	Diamond Occurrence
DS1900-0191 1903	Hanna, G.B.	History of Mining in Mecklenburg	In: History of Mecklenburg County And The City of Charlotte, CHARLOTTE: OBSERVER PRINTING, 2 VOLS. Vol. 2, P. 115.	United States, North Carolina, Appalachia	Mining
DS1900-0412 1906	Harding, A.J.	Diamond Formation in California	Jewellers Circular Keystone, Vol. 53, No. 16, Nov. 21ST. P. 123.	United States, California, West Coast	Diamond Genesis
DS1900-0758 1909	Harris, G.D.	Magnetic Rocks. ( a Note on the Peridotite in Arkansas.)	Science., Vol. 29, P. 384.	United States, Gulf Coast, Arkansas	Petrology
DS1900-0024 1900	Herron, F.M.	Diamond in Indiana. #2	Letter To G.f. Kunz, 1p.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0060 1901	Hobbs, W.H.	Diamondiferous Deposits of the United States	The Mineral Industry During 1900, PP. 301-304.	United States, Appalachia, West Coast, Great Lakes, Montana, Rocky Mountains	Review
DS1900-0061 1901	Hobbs, W.H.	Diamantiferous Deposits in the United States	The Mineral Industry, Vol. 9, PP. 301-304.	United States, Great Lakes, Appalachia, West Coast, Virginia, South Carolina	Diamond Occurrence
DS1900-0119 1902	Hobbs, W.H.	Emigrant Diamonds in America. #2	Smithsonian Institute Annual Report, PP. 359-366.	United States, Appalachia, Great Lakes, Canada	Glacial, Diamonds Notable, Eagle, Oregon, Saukville, Milford
DS1900-0255 1904	Holway, R.S.	Eclogites in California	Journal of Geology, Vol. 12, PP. 244-258.	United States, California, West Coast	Eclogites
DS1900-0062 1901	Hopkins, T.C.	Diamonds in Indiana. #1	Copy of Memo From Syracuse University.,	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0256 1904	Hopkins, T.C.	Mineral Resources of Onondaga County, New York	New York State Annual Report, No. 56, PP. 109-114.	United States, Appalachia, New York	Geology, Peridotite
DS1900-0328 1905	Hopkins, T.C.	Diamonds in New York. #3	Science., N.S. Vol. 22, Nov. 24TH. P. 673.	United States, Appalachia, New York	Diamond Occurrence
DS1900-0170 1903	Indianapolis Star	Finding of Stones in Indiana Has Come to Notice of Tiffany's Man.	Indianapolis Star., Nov. 8TH.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0234 1904	Indianapolis Star	Indiana a Banner State for Gems	Indianapolis Star, Jan. 2ND.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0303 1905	Indianapolis Star	Precious Stones Including Diamonds in Brown County	Indianapolis Star, SEPT. 20TH. ALSO: MAUFACTURER JEWELLER, Vol. 37, Oct. 12TH.	United States, Indiana, Great Lakes, Brown	Diamond Occurrence, Diamonds Notable
DS1900-0048 1901	Ithaaca	Rained Diamonds	Ithaca New York Journal, JUNE 29TH.	United States, Indiana, Great Lakes	Diamond Occurrence
DM1900-0814 1900	J.S.S.	He Says Precious Stones Are Being Found in Alaska	New York Mail And Express, MARCH 29TH.	United States, Alaska	gemstones
DS1900-0049 1901	Jewellers Circular Keystone	Stones Found in New Mexico Pronounced Not to Be Diamonds	Jewellers Circular Keystone, Vol. 41, No. 24, Jan. 9TH. P. 30.	United States, New Mexico, Colorado Plateau	gemstone
DS1900-0096 1902	Jewellers Circular Keystone	Johannesburg Diamond Exporters Predict Rich Diamondiferous Strat a in Denver Colorado.	Jewellers Circular Keystone, Vol. 45, No. 8, SEPT. 24TH. P. 53.	United States, Colorado, Rocky Mountains	Diamond Occurrence
DS1900-0097 1902	Jewellers Circular Keystone	Crystals Supposed to Be Diamonds Found in Berrien County, Georgia.	Jewellers Circular Keystone, Vol. 45, No. 7, SEPT. 17TH. P. 28.	United States, Georgia, Appalachia, Michigan	Diamond Occurrence
DS1900-0100 1902	Jewellers Circular Keystone	One Carat Diamond Found in Indiana	Jewellers Circular Keystone, Vol. 44, No. 17, MAY 28TH. P. 31.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0101 1902	Jewellers Circular Keystone	Dr. Day Gives a Statement Regarding the Alleged Diamond Discovery in Montana. He Suggests that they are Probably Sapphires.	Jewellers Circular Keystone, Jan. 29TH.	United States, Montana, Rocky Mountains	Diamond Occurrence
DS1900-0237 1904	Jewellers Circular Keystone	Another Supposed Diamond Field	Jewellers Circular Keystone, Vol. 47, N0. 26, Jan. 27TH. P. 42A.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0238 1904	Jewellers Circular Keystone	Company Formed to Develop Alleged Diamond Fields in Kentucky	Jewellers Circular Keystone, Vol. 47, No. 26, Jan. 27TH. P. 28.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0305 1905	Jewellers Circular Keystone	South African Geologist to Look Over Alleged Diamond Fields in This Country.	Jewellers Circular Keystone, Vol. 51, No. 5, AUG. 30TH. P. 26.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0306 1905	Jewellers Circular Keystone	South African Geologist Favourably Impressed with Supposed Diamond Fields of Kentucky.	Jewellers Circular Keystone, Vol. 51, No. 7, SEPT. 13TH. P. 22.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0385 1906	Jewellers Circular Keystone	Syndicate Formed to Develop Supposed Diamond Fields at Plumcity, Wisconsin.	Jewellers Circular Keystone, Vol. 53, No. 9, Oct. 3RD. P. 49.	United States, Great Lakes, Wisconsin	Diamond Occurrence, Diamonds Notable
DS1900-0395 1906	Jewellers Circular Keystone	Supposed Diamond Fields in the United States (us)	Jewellers Circular Keystone, Vol. 53, No. 10, Oct. 10TH. P. 69.	United States, Wisconsin, Kentucky, Great Lakes, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0518 1907	Jewellers Circular Keystone	Discovery of Diamonds in Arkansas	Jewellers Circular Keystone, Vol. 55, No. 2, AUGUST 14TH. PP. 63-64.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0521 1907	Jewellers Circular Keystone	Further Details as to the Arkansaw Diamonds	Jewellers Circular Keystone, Vol. 55, No. 2, AUGUST 7TH. P. 43; P. 45.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0527 1907	Jewellers Circular Keystone	Another Diamond Find Proves Fictious	Jewellers Circular Keystone, Vol. 55, No. 9, Oct. 2ND. P. 85.	United States, Michigan, Great Lakes, Pennsylvania	Diamond Occurrence
DS1900-0330 1905	Jones, F.A.	New Mexico Mines and Minerals	New Mexico Bureau of Immigration., 349P.	United States, New Mexico, Rocky Mountains	Gemstones
DS1900-0257 1904	Judson, J.N.	Diamond Concentration	Engineering and Mining Journal, Vol. 77, No. 25, JUNE 23RD. P. 996.	Africa, South Africa, United States	Mining Engineering
DS1900-0307 1905	Kansas City Jeweller	Prospecting for Diamonds in America	Kansas City Jeweller., Vol. 5, SEPT. P. 177.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0386 1906	Kansas City Jeweller	To Search for Diamonds in Wisconsin	Kansas City Jeweller., Vol. 6, OCTOBER, P. 217.	United States, Great Lakes, Wisconsin	Diamond Occurrence, Diamonds Notable
DS1900-0387 1906	Kansas City Jeweller	The Fourth Diamond Found	Kansas City Jeweller , Vol. 6, NOVEMBER P. 268.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence, Diamonds Notable
DS1900-0388 1906	Kansas City Jeweller	A Diamond Mine in Arkansaw	Kansas City Jeweller , Vol. 6, OCTOBER P. 239.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence, Diamonds Notable
DS1900-0391 1906	Kansas City Jeweller	A Kentucky Diamond Story	Kansas City Jeweller , Vol. 6, NOVEMBER P. 282.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0525 1907	Kansas City Jeweller	Kentucky Diamond Mines	Kansas City Jeweller., Vol. 6, APRIL, P. 447.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0416 1906	Kemp, J.F.	Dike of Mica Peridotite from Fayette County, Southwestern Pennsylvania.	Geological Society of America (GSA) Bulletin., Vol. 17, P. 691. (abstract.)	United States, Appalachia, Pennsylvania	Related Rocks, Geology
DS1900-0195 1903	Kemp, J.F., Knight, W.C.	Leucite Hills of Wyoming	Geological Society of America (GSA) Bulletin., Vol. 14, PP. 305-336.	United States, Wyoming, Rocky Mountains, Leucite Hills	Geology
DS1900-0566 1907	Kemp, J.F., Ross, J.G.	A Peridotite Dike in the Coal Measures of Southwestern Pennsylvania.	New York Academy of Sciences ANNALS, Vol. 17, PP. 509-518.	United States, Appalachia, Pennsylvania	Related Rocks, Geology
DC1900-1032 1908	Kentucky Diamond Mining And Developing Co	$1, 300, 000. Mentioned in Diamond Suit.	Manufacturer Jeweler., Vol. 42, JUNE 25, P. 1100.	United States, Kentucky, Appalachia	News Item - Press Release
DC1900-1031 1906	Kentucky Transvaal Diamond Mining Company	Prospectus Including Reports on the Kimberlite Outcrops by D. Draper and S. Pearson.	Willard, Kentucky, Prospectus, 16P.	United States, Appalachia, Kentucky	Geology, Kimberlite, Investment
DS1900-0772 1909	Kimberley Townsite And Land Company	Kimberley, the Diamond City of America	Nashville: The News Print., 16P.	United States, Gulf Coast, Arkansas, Pennsylvania	Gemstones
DS1900-0773 1909	Kindle, E.M.	Watkins Glen- Catatonk Folio	Geol. Atlas of The United States, Folio, No. 169, PP. 93-111.	United States, Appalachia, New York	Geology
DS1900-0677 1908	Koch, F.J.	The Search for Diamonds in California	Manufacturer Jeweller., Vol. 42, MAY 28TH. P. 926; P. 950.	United States, California, West Coast, Montana	Diamond Occurrences
DS1900-0259 1904	Kraus, E.H.	A New Exposure of Serpentine at Syracuse New York	American Geologist., Vol. 25, PP. 330-332.	United States, Appalachia, New York	Geology, Petrography
DM1900-0826 1902	Kunz, G.F.	Tiffany and Company Have Received No Specimens of Diamonds from Montana	New York Times, Jan. 19TH.	United States, Montana, Rocky Mountains	Tiffany
DS1900-0027 1900	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1899 Part 2	Mineral Resources of The United States For 1899: Part 2, Non, PP. 419-462.	United States, Australia, Brazil, Appalachia, West Coast, Great Lakes	Diamond Occurrrences
DS1900-0065 1901	Kunz, G.F.	Des Progres de la Production des Pierres Precieuses Aux Etats Unis.	International GEOL. CONGRES 8TH. PARIS, COMPTES RENDUS, PT. 1, PP. 393-395.	United States, Appalachia, Great Lakes, West Coast	Diamond Occurrences
DS1900-0066 1901	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1900	Mineral Resources of The United States For 1900: Part 2, Non, PP. 749-778.	United States, South Africa, Great Lakes, Appalachia, Australia, Russia	Diamond Occurrences
DS1900-0121 1902	Kunz, G.F.	Precious Stones in the Usa	Engineering and Mining Journal, Vol. 73, Jan. 4TH. P. 38.	United States, Appalachia, Great Lakes, West Coast	Diamond Occurrences
DS1900-0122 1902	Kunz, G.F.	Diamonds in Kentucky, Letter	Copy of A Letter To C.j. Norwood, Curator of The State Geol., Oct. 22ND.	United States, Kentucky, Appalachia	Diamond Occurrences
DS1900-0123 1902	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1901	Mineral Resources of The United States For 1901: Part 2, Non, PP. 725-736.	United States, South Africa, Appalachia, Rocky Mountains, Montana, Alabama	Diamond Occurrences
DS1900-0261 1904	Kunz, G.F.	Another Indiana Diamond	Indianapolis Ind. News, Jan. 11TH.	United States, Indiana, Great Lakes	Diamond Occurrences
DS1900-0334 1905	Kunz, G.F.	Diamonds; the Mineral Industry During 1904	The Mineral Industry During 1904, Vol.	United States, Arizona, Colorado Plateau	Genesis, Origin, Synthetic
DS1900-0335 1905	Kunz, G.F.	Gems, Jewelers' Materials and Ornamental Stones of Californi	California Division of Mines Bulletin., No. 37, 171P.	United States, California, West Coast	Gemstones
DS1900-0336 1905	Kunz, G.F.	Precious Stones: Diamonds - Kunz 1904	Mineral Resources of The United States For 1904: Part 2, Non, PP. 941-987.	United States, South Africa, Rhodesia, Brazil, Guyana, Suriname, Great Lakes	Diamond Occurrences
DS1900-0421 1906	Kunz, G.F.	Precious Stones. In: the Making of America	Chicago: The Making of America Co., Vol. Vi, Mining And Meta, PP. 324-347.	United States	History, Kimberley
DS1900-0422 1906	Kunz, G.F.	Precious Stones - Kunz 1905	The Mineral Industry During 1905, Vol. 14, P. 213.	United States, Appalachia, New York	Diamond Occurrences
DS1900-0423 1906	Kunz, G.F.	Peridotite Dike on Manhattan Island	Science., Vol. 23, MARCH 9TH. P. 388.	United States, Appalachia, New York	peridotite
DS1900-0424 1906	Kunz, G.F.	Diamond Carbon in Meteorites	The Mineral Industry During 1905, PP. 16-17.	United States, Arizona, Colorado Plateau	Carbon
DS1900-0425 1906	Kunz, G.F.	Precious Stones: Diamond (kunz 1905)	Mineral Resources of The United States For 1905: Part 2, Non, PP. 1323-1358.	United States, Canada, South Africa, Brazil, Great Lakes, Appalachia	Current Activities
DS1900-0426 1906	Kunz, G.F.	Diamonds in Kentucky, January 1906	Copy of A Letter To C.j. Norwood, Director of The Kentucky G, Jan. 23RD.	United States, Kentucky, Appalachia	Diamond Occurrences
DS1900-0571 1907	Kunz, G.F.	Wisconsin- the Discovery of a Diamond Near Plum City	Mineral Resources of The United States For 1906, PT. 2, NONMETALS, P. 1219.	United States, Great Lakes, Wisconsin	Diamond Occurrences
DS1900-0572 1907	Kunz, G.F.	Diamonds Found in Arkansas	Mineral Resources of The United States For 1906, PP. 1217-1220.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrences
DS1900-0573 1907	Kunz, G.F.	The Occurrence of Diamond in North America	Geological Society of America (GSA), Vol. 17, PP. 692-694.	United States, Gulf Coast, Arkansas, Wisconsin, Great Lakes	Diamond Occurrences
DS1900-0574 1907	Kunz, G.F.	History of Gems Found in North Carolina	Raleigh: E.m. Uzzell And Co., 60P. ALSO: NORTH CAROLINA Geological Survey Bulletin. No. 12.	United States, North Carolina, Appalachia	Gemstones
DS1900-0679 1908	Kunz, G.F.	Diamonds in Arkansas, 1908	Mines AND MINERALS, Vol. 28, PP. 552-553. ALSO: MINING WORLD, Vol. 28, P. 443.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrences
DS1900-0680 1908	Kunz, G.F.	Precious Stones: Diamond - Kunz 1907	The Mineral Industry During 1907, Vol. 16, PP. 792-804.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrences
DS1900-0681 1908	Kunz, G.F.	Describes Diamond from Hillsboro of 4 1/4 Carats and Deeply pitted Yellowish White.	Private Correspondence.,	United States, Ohio, Great Lakes	Diamond Occurrences
DS1900-0776 1909	Kunz, G.F.	Diamonds of Arkansas; 1908	The Mineral Industry During 1908, Vol. 17, PP. 734-735.	United States, Gulf Coast, Arkansas	Diamond Occurrences
DS1900-0777 1909	Kunz, G.F.	Diamonds in Arkansas, 1909	Engineering and Mining Journal, Vol. 87, P. 963.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrences
DS1900-0575 1907	Kunz, G.F., Washington, H.S.	Occurrence of Diamonds in Arkansas	Mineral Resources of The United States For 1906, Part 2, Non, PP. 1247-1251. ALSO: SCI. American SUPPL., Oct. 5TH. 1907 Vol.	United States, Gulf Coast, Arkansas	Diamond Occurrences
DS1900-0576 1907	Kunz, G.F., Washington, H.S.	Note on Forms of Arkansaw Diamonds	American Journal of Science, SER. 4, Vol. 24, PP. 275-276. ALSO: SOC. OURAL Bulletin., Vol. 2	United States, Gulf Coast, Arkansas	Morphology
DS1900-0682 1908	Kunz, G.F., Washington, H.S.	On the Peridotite of Pike County, Arkansas and the Occurrence of Diamond Therein.	New York Academy of Sciences ANNALS, Vol. 18, P. 350.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, Petrology
DS1900-0778 1909	Kunz, G.F., Washington, H.S.	Diamonds in Arkansas; March, 1909	American Institute Mining Engineering Transactions, Vol. 39, PP. 169-176. ALSO American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) BIMONTHLY Bulletin No.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrences
DS1900-0779 1909	Lakes, A.	Precious Stones 1909	Mining Science., Vol. 60, Nov. 4TH. PP. 414-416.	United States, Canada	Gemstones
DS1900-0578 1907	Lanier, R.S.	Has Arkansas a Diamond Field?	Review of Reviews, Vol. 36, P. 301.	United States, Gulf Coast, Arkansas, Pennsylvania	History, Geology, News Item
DS1900-0515 1907	Little Rock Democrat	Diamonds Found in Ozan Field	Little Rock Democrat., MAY 22ND.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0636 1908	Little Rock Democrat	Big Diamond Deal Is Made	Little Rock Democrat., Nov. 29TH.	United States, Gulf Coast, Arkansas, Pennsylvania	Economics
DS1900-0627 1908	Los Angeles Union	Prospector Declares Extinct Volcano Holds Vast Bed of Diamonds.	Los Angeles Examiner., Oct. 19TH.	United States, California, West Coast	Diamond Occurrence
DS1900-0030 1900	Maguire, D.	Precious Stones and Gem Materials of the Pacific Coast States and Territories of the United States.	Mines AND MINERALS, Vol. 20, DECEMBER PP. 222-223; PP. 255-256.	United States, California, Montana, Idaho, Oregon, Arizona, West Coast, Rocky Mountains	Gemstones
DS1900-0686 1908	Maguire, D.	Gems and Precious Stones of America	Mineral Science., Vol. 58, SEPT. 3RD. PP. 188-189.	United States	Gemstones
DS1900-0236 1904	Manufacture Jeweller	After Precious Stones in Kentucky	Manufacturer Jeweller, Vol. 34, Feb. 4TH. P. 125.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0099 1902	Manufacture Jewellers	Diamond Found in Indiana	Manufacturer Jewellers, Vol. 30, MAY 29TH. P. 556.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0301 1905	Manufacturer Jeweller	Diamonds Near Placerville	Manufacturer Jeweller, Vol. 37, Oct. 12TH. P. 358.	United States, California, West Coast	Diamond Occurrence, Diamonds Notable
DS1900-0304 1905	Manufacturer Jeweller	To Hunt for Diamonds in Kentucky	Manufacturer Jeweller, Vol. 37, AUG. 31ST. PP. 204-206.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0389 1906	Manufacturer Jeweller	Looking for Diamonds in Kentucky	Manufacturer Jeweller., Vol. 38, APRIL 7TH. P. 472.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0390 1906	Manufacturer Jeweller	Those Kentucky Diamond Mines (1906)	Manufacturer Jeweller., Vol. 39, Dec. 17TH. P. 811.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0517 1907	Manufacturer Jeweller	An American Diamond Mine	Manufacturer Jeweller., Vol. 41, SEPT. 19TH. P. 434.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0523 1907	Manufacturer Jeweller	Those Kentucky Diamond Mines (1907)	Manufacturer Jeweller., Vol. 40, MARCH 28TH. P. 484.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0524 1907	Manufacturer Jeweller	The Kentucky Diamond Prospect	Manufacturer Jeweller., Vol. 41, Oct. 24TH. P. 640.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0526 1907	Manufacturer Jeweller	Diamonds of Little Value Found in Michigan	Manufacturer Jeweller, Vol. 41, SEPT. 5TH. P. 370.	United States, Michigan, Great Lakes	Diamond Occurrence
DS1900-0628 1908	Manufacturer Jeweller	The California Diamond Mine	Manufacturer Jeweller., Vol. 42, MARCH 26TH. P. 560.	United States, California, West Coast	Diamond Occurrence
DS1900-0633 1908	Manufacturer Jeweller	Blue Ground Struck at Oroville	Manufacturer Jeweller., Vol. 42, MAY 14TH. P. 840.	United States, California, West Coast, Montana	Diamond Occurrence
DS1900-0637 1908	Manufacturer Jeweller	Activity in Arkansas Diamond Fields	Manufacturer Jeweller., Vol. 43, Dec. 17TH. P. 1076.	United States, Gulf Coast, Arkansas, Pennsylvania	Economics
DS1900-0736 1909	Manufacturer Jeweller	Diamonds from California	Manufacturer Jeweller, Vol. 44	United States, California, West Coast, Montana	Diamond Occurrence
DS1900-0342 1905	Martin, D.S.	Diamonds at Syracuse. #1	Onondaga Academy of Science Proceedings, Oct. 24TH. MEETING.	United States, Appalachia, New York, South Africa	Diamond Occurrences
DS1900-0343 1905	Matson, G.C.	Peridotite Dikes Near Ithaca, New York	Journal of GEOLOGY, Vol. 13, PP. 264-275.	United States, Appalachia, New York	Petrography, Related Rocks
DS1900-0783 1909	Mccourt, W.E.	Diamond in Arkansaw. #1	Science., Vol. 30, JULY 30TH. P. 127. ALSO: ST. LOUIS Academy of Science TRANS	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0738 1909	Memphis	Status of Diamond Fields of Pike County, Arkansas	Memphis, Tenn.:commercial Appeal, MARCH 21ST.	United States, Gulf Coast, Arkansas, Pennsylvania	Economics
DS1900-0791 1909	Millar, A.Q.	The Arkansas Diamond Fields 1909 Mining and Scientific Press	Mining And Scientific Press, Vol. 99, P. 534.	United States, Gulf Coast, Arkansas	Diamond Occurrence
DS1900-0435 1906	Miller, G.W.	Elements of Mining, Geology and Metallurgy, a Practical Field and Office Manual.	Denver: The Daily Mining Record., 489P.	United States, Canada	Mining
DS1900-0522 1907	Mineral Collecting	Say They Have a Diamond Mine	Miner. Coll., Vol. 14, APRIL PP. 28-29.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0009 1900	Mineral Resources of the United States	Precious Stones - 1898-99	Mineral Resources of The United States For 1898-1899, PP. 557-558.	United States, Ohio, Great Lakes	Diamond Occurrence
DS1900-0010 1900	Mineral Resources of the United States	Diamond in Ohio. #1	Mineral Resources of The United States For 1899, 21ST. Annual Report PT. 6, P. 420.	United States, Ohio, Great Lakes	Diamonds Notable
DS1900-0045 1901	Mineral Resources of the United States	Precious Stones: Diamond 1900	The Mineral Industry During 1900, Vol. 9, PP. 300-305.	Africa,South Africa, Russia, Australia, South America, Brazil, Guyana, United States, Urals	Garnet, De Beers Mine, Current Activities
DS1900-0052 1901	Mineral Resources of the United States	Precious Stones 1900	Mineral Resources of The United States For 1900, PP. 749-752.	United States, Wisconsin, Michigan, Indiana, Ohio, Georgia, North Carolina	Diamond Occurrence
DS1900-0104 1902	Mineral Resources of the United States	Montana (1902)	Mineral Resources of The United States In 1901, PP. 730-731.	United States, Montana, Rocky Mountains, Fergus, Appalachia, Georgia	Diamond Occurrence
DS1900-0171 1903	Mineral Resources of the United States	Precious Stones (1902)	Mineral Resources of The United States For 1902, PP. 814-815.	United States, Indiana, Wisconsin, Great Lakes	Diamond Occurrences
DS1900-0235 1904	Mineral Resources of the United States	Diamonds in Kentucky, 1903	Mineral Resources of The United States For 1903, PP. 925-926.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0394 1906	Mineral Resources of the United States	Precious Stones: Diamond (1905)	The Mineral Industry During 1905, Vol. 14, PP. 212-216.	United States, South Africa, Brazil, West Coast, Appalachia, Montana, Eldora	Current Activities
DS1900-0513 1907	Mineral Resources of the United States	California, 1906	Mineral Resources of The United States For 1906, PP. 1217-1220.	United States, California, West Coast, Kentucky, Appalachia, Wisconsin	Diamond Occurrence
DS1900-0095 1902	Mining and Scientific Press	Diamonds in Plumas County, California, 1902	Mining and Scientific Press, Vol. 85, AUG. 9TH. P. 78.	United States, California, West Coast	Diamond Occurrence
DS1900-0638 1908	Mining and Scientific Press	Diamonds in Arkansas, October, 1908	Mining And Scientific Press, Vol. 97, Oct. 31ST. P. 610.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0233 1904	Mining Engineering	Diamonds in California, 1904	Mining Engineering REVIEW., Vol. 18, No. 13, MARCH 26TH. P. 14.	United States, California, West Coast	Diamond Occurrence
DM1900-1006 1906	Mining Reporter	Diamonds in New York. #2	Min. Reporter., Vol. 53, APRIL 19TH. P. 385.	United States, Appalachia, New York	Diamond Occurrences
DS1900-0050 1901	Mining Reporter	Diamonds in New Mexico	Mining Reporter, Vol. 43, Jan. 3RD. P. 2.	United States, New Mexico, Colorado Plateau	gemstone
DS1900-0528 1907	Mining Reporter	The Diamond in America	Mining Reporter., Vol. 55, MARCH 14TH. P. 236.	United States, New York, Appalachia	Diamond Occurrence
DM1900-1018 1908	Mining World	A Placer Gold Washing Machine	Mining World., Vol. 29, Dec. 19TH. P. 924.	United States	Mining Engineering
DS1900-0344 1905	Mitchell, E.	Diary of a Geological Tour by Mitchell in 1827 and 1828. Introduction and Notes by K.p. Battle.	Chapel Hill: University Publishing James Sprunt Hist. Mon. No. 6, 73P.	United States, North Carolina, Appalachia	Diamond Occurrences
DS1900-0439 1906	Nashville News	Diamond Mines of Arkansas. #1	Nashville News Supplement., AUGUST, 8P.	United States, Arkansas	Historical Review
DM1900-0822 1902	New York Sun	Diamonds in California, 1902	New York Sun., AUGUST 8TH.	United States, California	Diamond Occurrence
DM1900-0823 1902	New York Sun	Gold in Indiana	New York Sun., JUNE 15TH.	United States, Indiana, Great Lakes	Diamond Occurrence
DM1900-0824 1902	New York Times	Finds a Diamond Field Fergus	New York Times, Jan. 18TH.	United States, Montana	Diamond Occurrence
DM1900-1010 1907	New York World	Finding Diamonds in Kentucky's Blue Ground	New York World Sunday Magazine., JUNE 23RD.	United States, Kentucky, Appalachia	Diamond Occurrence
DS1900-0172 1903	Northwest Magazine	Diamonds in Oregon	Northwest Magazine, Vol. 21, No. 2, FEBRUARY P. 94.	United States, Oregon, Rocky Mountains	Diamond Occurrence
DS1900-0210 1903	Pattee, E.R.	Analysis of the Green Street Dike	Onondaga Academy of Science Proceedings, Vol. 1, P. 3.	United States, Appalachia, New York	Petrography, Related Rocks, Peridotite
DS1900-0793 1909	Pearson, S.	American Diamonds. #2	South African Mining Journal, Vol. 7, PT. 1, JUNE 12TH. P. 412.	United States, Gulf Coast, Arkansas, Pennsylvania, Appalachia, Kentucky	Diamond Occurrences
DS1900-0695 1908	Phalen, W.C.	Economic Geology of the Genova Quadrangle, Kentucky, Ohio, And West Virginia.	United States Geological Survey (USGS) Bulletin., No. 349, 158P.	United States, Kentucky, Ohio, West Virginia	Geology, Diamond
DS1900-0348 1905	Pirsson, L.V.	The Petrology and Geology of the Igneous Rocks of the Highwood Mountains, Montana.	United States Geological Survey (USGS) Bulletin., No. 237, 208P.	United States, Montana, Rocky Mountains	Geology
DS1900-0697 1908	Purdue, A.H.	A New Discovery of Peridotite in Arkansaw	Economic Geology, Vol. 3, PP. 525-528.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology
DS1900-0350 1905	Reed, E.A.	The Precious Stone Industry of the U.S.A.	Scientific American., Vol. 59, APRIL 8TH. PP. 24470-24471.	United States	Gemstones
DS1900-0105 1902	Richardson, L.	A Sketch of North Carolina	Charleston: Lucas Richardson., 160P.	United States, North Carolina, Appalachia	Diamond Occurrence
DS1900-0268 1904	Ries, H.	Notes on the Mineral Development in the Region Around Ithaca New York.	New York State Mus. Annual Report, Vol. 56, PP. 207-208.	United States, Appalachia, New York	Geology, Mineralogy
DS1900-0076 1901	Royce, R.L.	Indiana's Gold and Diamond	Unknown.,	United States, Indiana, Great Lakes	Diamond Occurrences
DS1900-0213 1903	Royce, R.L.	Diamond Occurrences in Brown and Morgan Counties	Letter To G.f. Kunz, Jan. 3RD.	United States, Indiana, Great Lakes	Diamond Occurrences
DS1900-0626 1908	Sacramento Union	Good Diamond Mines in Butte. a South African Expert Visits The Location at Oroville.	Sacramento Union., AUGUST 18TH.	United States, California, West Coast	Diamond Occurrence
DS1900-0094 1902	San Francisco Chronicle	Tiny Diamonds Discovered Near San Bernidino, California	San Francisco Chronicle., Oct. 31ST.	United States, California, West Coast	Diamond Occurrence
DS1900-0508 1907	San Francisco Chronicle	To Mine Diamonds	San Francisco Chronicle., JULY 26TH.	United States, California, West Coast	Diamond mining
DM1900-1023 1908	Schneider, P.F.	Geology and Mining in Arkansaw Diamond Field	Mining World., Vol. 28, PP. 255-257.	United States, Gulf Coast, Arkansas, Pennsylvania	History Of Mining Methods
DS1900-0128 1902	Schneider, P.F.	New Exposures of Eruptive Dikes in Syracuse, New York	American Journal of Science, SER. 4, Vol. 14, PP. 24-25.	United States, Appalachia, New York	Geology
DS1900-0215 1903	Schneider, P.F.	The Geology of the Serpentines of Central New York	Onondaga Academy of Science Proceedings, Vol. 1, PP. 110-117.	United States, Appalachia, New York	Petrography
DS1900-0216 1903	Schneider, P.F.	Geology of the Green Street Dike	Onondaga Academy of Science Proceedings, Vol. 3, P. 3.	United States, Appalachia, New York	Petrology
DS1900-0217 1903	Schneider, P.F.	New Exposures of Eruptive Dikes Near Ithaca	Onondaga Academy of Science Proceedings, Vol. 2, PP. 130-136.	United States, Appalachia, New York, Finger Lakes	Geology, Related Rocks
DS1900-0356 1905	Schneider, P.F.	Diamonds at Syracuse. #2	Syracuse Herald., Dec. 24TH.	United States, Appalachia, New York	Diamond Occurrence
DS1900-0357 1905	Schneider, P.F.	The Correlation of Some Alnoite Dikes in East Canada Creek	Science., N.S. Vol. 22, P. 673. (abstract.).	United States, Appalachia, New York	Stratigraphy
DS1900-0589 1907	Schneider, P.F.	A Preliminary Report on the Arkansaw Diamond Field	Little Rock: Central Printing Co., 16P.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, Diamond Occurrence
DS1900-0590 1907	Schneider, P.F.	A Descriptive Catalogue of the Diamond Bearing Rocks. to Accompany the Exhibit of Peridotite Rock at Bureau of Mines.	Little Rock: Central Printing Co., 3P.	United States, Gulf Coast, Arkansas, Pennsylvania, South Africa	Petrology
DS1900-0701 1908	Schneider, P.F.	A Unique Collection of Peridotite	Science., Vol. 28, PP. 92-93.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, Petrology
DS1900-0273 1904	Schultz, G.R.	The Adair County Diamond	Letter To G.f. Kunz From The Editor of Jewellers Circular Keystone, JUNE 9, P. 64.	United States, Kentucky, Appalachia	Diamond Occurrences
DS1900-0516 1907	Science	Diamonds in Arkansas, August 1907	Science., N.S. Vol. 26, AUGUST 16TH. P. 231.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0219 1903	Shaler, N.S.	Diamond from Indiana. #2	Letter To G.f. Kunz, DEC, 30TH.	United States, Indiana, Great Lakes	Blank
DS1900-0130 1902	Shimer, H.	Petrographic Descriptions of the Dike of Grand Isle	Vermont State Geology Report, No. 3, PP. 174-183.	United States, Vermont	Petrography
DS1900-0079 1901	Sipe, J.C.	History of the Stanley Diamond	Letter To G.f. Kunz, MARCH 21ST.	United States, Indiana, Great Lakes	Diamond Occurrences
DS1900-0800 1909	Smith, B.	Dikes in the Hamilton Shale Near Clintonville, Onondaga County, New York.	Science., Vol. 30, PP. 724-725.	United States, Appalachia, New York	Geology, Petrography, Related Rocks
DS1900-0132 1902	Smyth, C.H.JR.	Petrography of Recently Discovered Dikes in Syracuse, New York with a Note on the Presence of Melilite in the Green Street Dike.	American Journal of Science, SER. 4, Vol. 14, PP. 26-30.	United States, Appalachia, New York	Geology, Petrography
DS1900-0801 1909	Smyth, C.H.JR.	Petrographic Description of Clintonville Dikes	New York State Mus. Bulletin., No. 140, PP. 24-25.	United States, Appalachia, New York	Geology, Petrography
DS1900-0519 1907	South Africa Magazine	An American Kimberley in Embryo	South Africa Magazine., Vol. 75, AUGUST 24TH. P. 487.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1900-0392 1906	South Africa Mining Review	An American Kimberley	South Africa Mining Review, Vol. 72, Oct. 13TH. P. 81.	United States, Kentucky, Appalachia	Diamond Occurrence, Diamonds Notable
DS1900-0634 1908	South African Mining Journal	A New Menace to the Diamond Market	South African Mining Journal, Vol. 6, PT. 1, MAY 23RD. P. 315.	United States, Gulf Coast, Arkansas	Economics
DS1900-0635 1908	South African Mining Journal	American Diamonds. #3	South African Mining Journal, Vol. 6, PT. 1, MAY 2ND. PP. 241-242.	United States, Gulf Coast, Arkansas	Economics
DS1900-0739 1909	South African Mining Journal	Mr. Draper and the Arkansas Diamonds	South African Mining Journal, Vol. 7, PT. 2, Oct. 9TH. P. 98.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond genesis
DS1900-0625 1908	St Louis Times	Diamonds in Alaska; September, 1908	St. Louis Times, SEPT. 28TH.	United States, Alaska	Diamond Occurrence
DS1900-0098 1902	St. Louis Globe	Indiana Man Discovered Valuable Stone in Morgan County	St. Louis Globe Democrat., MAY 20TH.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0102 1902	St. Louis Republic	Diamonds Are Sapphires	St. Louis Republic., Jan. 26TH. ALSO : BOSTON EVENING TRANSCRIPT, Jan. 26TH.	United States, Montana, Rocky Mountains, Fergus	Diamond Occurrence
DS1900-0276 1904	Stafford, O.F.	The Mineral Resources and Mineral Industry of Oregon for 190	University OREGON Bulletin., N.S. Vol. 1, No. 4, 112P.	United States, Oregon, Rocky Mountains	Gemstones
DS1900-0456 1906	Sterrett, D.B.	Kentucky	Mineral Resources of The United States For 1905, PP. 1324-1327.	United States, Appalachia, New York, Indiana, Kentucky	Review Of Current Activities
DS1900-0592 1907	Sterrett, D.B.	Precious Stones: Diamond 1906	Mineral Resources of The United States For 1906: Part 2, Non, PP. 1217-1226.	United States, Canada, South Africa, Brazil, India, Australia, Borneo	Review Of Current Activities
DS1900-0593 1907	Sterrett, D.B.	Diamonds from Plum City, Wisconsin	Mineral Resources of The United States For 1906, PT. 2, NONMETALS, P. 1220.	United States, Great Lakes, Wisconsin	Diamond Occurrence, Origin
DS1900-0703 1908	Sterrett, D.B.	Operation of Washing Plant by H.a. Millar	Mineral Resources of The United States For 1907, Part 2, Non, P. 804.	United States, Kentucky	Diamond Mining, Sampling
DS1900-0704 1908	Sterrett, D.B.	Diamonds in the United States; 1907	Mineral Resources of The United States For 1907, PP. 797-804.	United States, Gulf Coast, Arkansas, Pennsylvania, Kentucky, Appalachia	Diamond Occurrences
DS1900-0705 1908	Sterrett, D.B.	Precious Stones: Diamond (1908)	Mineral Resources of The United States For 1907: Part 2, Non, PP. 803-804 .	United States, South Africa, Brazil, Guyana, India, Australia, West Coast	Review Of Current Activities
DS1900-0802 1909	Sterrett, D.B.	Diamond in the United States	Mineral Resources of The United States For 1908: Part 2, Non, PP. 814-821.	United States, Gulf Coast, Arkansas, Pennsylvania, South Africa, Southwest	Review Of Current Activities
DS1900-0706 1908	Stifft, C.S.	The Arkansas Diamond Field 1908	Manufacturer Jeweller., Vol. 43, Oct. 15TH. P. 602.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1900-0047 1901	Terra Haute	Stanley Diamonds	Terra Haute Indiana Express, Feb. 3RD.	United States, Indiana, Great Lakes	Diamond Occurrence
DS1900-0008 1900	The San Francisco Chronicle	Finds Diamonds in Desert Lands	The San Francisco Chronicle, AUG. 23RD.	United States, California, West Coast	Diamond Occurrence
DS1900-0711 1908	Theobald, W.H.	Defrauding the Government: True Tales of Smuggling. from The Notebook of a Confidential Agent of the United States Treasury.	New York: Myrtle Publishing Co., 508P.	United States	Kimberley, Smuggling, Diamond
DS1900-0223 1903	Tompkins, D.A.	History of Mecklenburg County and the City of Charlotte From 1740 to 1903.	Charlotte: Observer Printing House., Vol. 2, PP. 109-131.	United States, North Carolina, Appalachia	History
DS1900-0232 1904	United States Geological Survey	Gems of California	United States Geological Survey (USGS) MINERALS YEARBOOK FOR 1904, P. 961.	United States, California, West Coast	Diamond Occurrence
DS1900-0380 1906	United States Geological Survey	Diamonds in California, 1906	United States Geological Survey (USGS) MINERALS YEARBOOK FOR 1906, PP. 1217-1218.	United States, California, West Coast	Diamond Occurrence
DS1900-0279 1904	Vogdes, A.W.	A Bibliography Relating to the Geology, Palaeontology and Mineral Resources of California.	California State Mining Bureau Bulletin., No. 30, 290P.	United States, California, West Coast	Geology
DS1900-0043 1900	Washington, H.S.	Igneous Complex of Magnet Cove, Arkansas	Geological Society of America (GSA) Bulletin., Vol. 11, PP. 389-416.	United States, Gulf Coast, Arkansas, Hot Spring County	Geology
DS1900-0084 1901	Washington, H.S.	The Foyaite Ijolite Series of Magnet Cove	Journal of GEOLOGY, Vol. 9, PP. 607-622; PP. 645-670.	United States, Gulf Coast, Arkansas, Hot Spring County	Foyaite, Ijolite
DS1900-0719 1908	Washington, H.S.	Report on the Arkansas Diamond Mining Company Property	Little Rock: Central Publishing Co., PP. 30-37.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, Diamond Evaluation
DS1900-0640 1908	Watch Jeweller	A New Diamond Field.#2	Watch. Jeweller., Vol. 34, Jan. 1, P. 33.	United States, Texas, Gulf Coast	Diamond genesis
DS1900-0603 1907	Watson, T.L.	Diamond, 1907	In: Minerals of Virginia., PP. 385-386.	United States, Virginia	Diamond Occurrence
DS1900-0604 1907	Weller, S.	The Geological Map of Illinois	Illinois State Geological Survey Bulletin., No. 6, 34P. 1 MAP.	United States, Illinois, Great Lakes	Geology
DS1900-0224 1903	West, G.B.	Diamonds and Precious Stones in California	San Francisco Chronicle.,	United States, California, West Coast	Gemstones
DS1900-0137 1902	Whitaker, M.C.	An Olivinite Dike of the Magnolia District and the Associated Picrotitanite.	Colorado Scientific Soc., Proceedings Vol. 6, PP. 104-119.	United States, Colorado	Kimberlite, Green Mountain, Diatreme
DM1900-0828 1902	Wilkow, J.E.	Native American Diamonds. the Recent Discovery in Georgia And the California Find.	New York Times, MARCH 2ND.	United States, Indiana, California	Diamond Occurrences
DS1900-0282 1904	Wilson, A.D.	The Great California Diamond Mines	Overland Monthly, Vol. 43, PP. 291-296.	United States, California, West Coast	Diamond Occurrences
DS1900-0720 1908	Wood, ST. J.	Diamond in Ohio. #2	Letter To G.f. Kunz, AUG. 24TH.	United States, Ohio	Diamond activities
DS1900-0721 1908	Woodford, E.G.	Report on the Properties of the Ozark Diamond Mining Company	Little Rock: Ozark Diamond Mining Company, 7P. 1 MAP.	United States, Arkansas	Diamond activities
DS1900-0283 1904	Young, M.	Diamond from Gold Creek Brown County, Indiana	Letter To Tiffany's., AUG. 29TH.	United States, Indiana	Diamond Occurrences
DS1900-0639 1908	Zeitschrift fur Prakt. Geologishe	Diamant Funde in Arkansas	Zeitschrift Min., Vol. 2, JULY 31ST. PP. 188-191.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1910-0550 1918	Alden, W.C.	The Quaternary Geology of South Eastern Wisconsin	United States Geological Survey (USGS) PROF. PAPER., No. 106, P. 221; P. 259; P. 270; P. 301; P. 308.	United States, Great Lakes, Wisconsin	Geomorphology
DM1910-0600 1910	Anon.	Many Minerals Taken from Georgia Mine	New York Herald., JUNE 19TH.	United States, Georgia, Appalachia	Blank
DM1910-0601 1910	Anon.	Arkansaw, United States (us)	London Mining Journal, Vol. 90, P. 553.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item, Diamond Occurrence
DM1910-0602 1910	Anon.	South Africa and Arkansaw Diamonds	Mining World., Vol. 32, APRIL 9TH. P. 757.	United States, Gulf Coast, Arkansas, South Africa	News Item
DM1910-0618 1912	Anon.	Arkansaw Diamond Mining	London The Mining Journal, Vol. 7, DECEMBER P. 454.	United States, Gulf Coast, Arkansas	Current Activities, News Item
DM1910-0644 1919	Anon.	The Strangest Diamond Story Ever	Philadelphia Record., AUGUST 24TH.	United States, Rocky Mountains	Blank
DS1910-0027 1910	Anon.	Diamonds of California; 1910	United States Geological Survey (USGS) MINERALS YEARBOOK, PP. 859-860.	United States, California, West Coast	Diamond Occurrence
DS1910-0028 1910	Anon.	United States Diamond Mining Company (1910)	Engineering and Mining Journal, Vol. 89, APRIL 2ND. P. 736.	United States, California, West Coast	Blank
DS1910-0029 1910	Anon.	Interesting Facts, Diamonds and Diamond Mining; Comparison Of the South African Mines with the Mines of Pike County.	Little Rock: Arkansaw Diamond Mining Company, 12 P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospectus
DS1910-0030 1910	Anon.	Native Diamond Found	Observer (charlotte), Jan. 7TH.	United States, North Carolina, Appalachia	Blank
DS1910-0150 1911	Anon.	Mechanical Devices for Diamond Deposits	Mining and Scientific Press, Vol. 102, Jan. 14TH. PP. 113-114.	United States	Mining Engineering
DS1910-0151 1911	Anon.	California Diamonds, 1911	Mining Science, Vol. 64, Nov. 23RD. P. 473.	United States, California, West Coast	Blank
DS1910-0152 1911	Anon.	Diamonds; Engineering and Mining Journal, 1911	Engineering and Mining Journal, Vol. 91, Feb. 11TH. P. 340.	United States, California, West Coast	Blank
DS1910-0153 1911	Anon.	Diamonds in Union County, Georgia	Jewellers Circular Keystone, Vol. 62, No. 21, JUNE 21, P. 91.	United States, Georgia, Appalachia	Blank
DS1910-0154 1911	Anon.	Found Diamonds 35 Years Ago. Washington Telegraph Publishes extract from the Gazette Telling of Discovery of First Gem.	Little Rock Gazette., SEPT. 10TH.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1910-0155 1911	Anon.	Further Details of the Discovery of the Large Diamond at Pike County, Arkansaw.	Jewellers Circular Keystone, Vol. 62, No. 22, JUNE 28TH, P. 57.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1910-0156 1911	Anon.	Diamonds in Texas	Mining Engineering WORLD., Vol. 35, AUGUST 12TH. P. 278.	United States, Texas, Gulf Coast	Blank
DS1910-0157 1911	Anon.	Precious Stones in Texas (1911)	Engineering and Mining Journal, Vol. 91, Jan. 28TH. P. 219.	United States, Texas, Gulf Coast	Blank
DS1910-0158 1911	Anon.	Diamond Dykes in Wyoming	Manufacturer Jewellers, Vol. 49, SEPT. 21ST. P. 598.	United States, Wyoming, Rocky Mountains	Blank
DS1910-0256 1912	Anon.	Diamonds in California, 1912	Engineering and Mining Journal, Vol. 94, SEPT. 7TH. P. 469.	United States, California, West Coast	Blank
DS1910-0257 1912	Anon.	Fine Flawless Diamond Reported to Have Been Found at Mine Near murfreesboro, Arkansaw.	Jewellers Circular Keystone, Vol. 64, No. 18, JUNE 5TH. P. 67.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1910-0258 1912	Anon.	Diamonds Found in Texas	United States Geological Survey (USGS) MINERALS YEARBOOK, PP. 1040-1041.	United States, Texas, Gulf Coast	Diamond Occurrence
DS1910-0330 1913	Anon.	Diamonds in Plumas County, California, 1913	Sacramento Union., AUGUST 17TH.	United States, California, West Coast	Blank
DS1910-0331 1913	Anon.	U.s. Diamond Mining Company, Oroville	Mining Engineering WORLD., Vol. 38, MARCH 8TH. P. 496.	United States, California, West Coast	Blank
DS1910-0332 1913	Anon.	Diamonds in California, 1913	Engineering and Mining Journal, Vol. 95, Jan. 18TH. P. 203.	United States, California, West Coast	Blank
DS1910-0333 1913	Anon.	Diamonds in Arkansaw, 1913	Engineering and Mining Journal, Vol. 96, No. 11, SEPT. 13TH. PP. 488-489.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence News Item
DS1910-0334 1913	Anon.	Diamond Mining in the United States (us)	South African Mining Journal, Vol. 22, PT. 1, Feb. 15TH. P. 761.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1910-0335 1913	Anon.	Kimberlite Company's Charter Revoked	Engineering and Mining Journal, Vol. 96, Oct. 18TH. P. 751. Nov. 1, P. 855.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting, Mining Economics, Trade, Law, News Item
DS1910-0403 1914	Anon.	Diamonds of California; 1914	United States Geological Survey (USGS) MINERALS YEARBOOK FOR 1914, P.320.	United States, California, West Coast	Diamond Occurrence
DS1910-0404 1914	Anon.	Diamonds in California, 1914	Engineering and Mining Journal, Vol. 98, JULY 25TH. P. 186.	United States, California, West Coast, El Dorado	Blank
DS1910-0405 1914	Anon.	California, 1913	Mineral Resources of The United States For 1913, PT. 2, PP. 663-666.	United States, California, West Coast, Plumes, Montana, Idaho, Rocky Mountains	Blank
DS1910-0455 1915	Anon.	Remarkable Occurrences of Diamonds	Jewellers Circular Keystone, SEPT. 1ST. P. 55.	United States, Arizona, Colorado Plateau	Diamond Genesis, Canyon Diablo, Meteorite
DS1910-0456 1915	Anon.	Diamond in Montana	The Mineral Industry During 1914, Vol. 23, P. 648.	United States, Montana, Rocky Mountains	Blank
DS1910-0491 1916	Anon.	Diamonds; Mining and Scientific Press, 1916	Mining and Scientific Press, Vol. 113, JULY 8, P. 65.	United States, California, West Coast	Blank
DS1910-0492 1916	Anon.	Hidden Diamond Mine Is Sought by Prospectors	San Francisco Chronicle., Nov. 26TH.	United States, California, West Coast, El Dorado	Blank
DS1910-0493 1916	Anon.	Precious Stones in 1915	Engineering and Mining Journal, Vol. 102, No. 18, P. 800.	United States, Gulf Coast, Arkansas, Pennsylvania, Brazil, South Africa	Diamond Occurrence
DS1910-0520 1917	Anon.	California Diamonds, 1917	The San Francisco Call Database, MARCH 11TH.	United States, California, West Coast	Blank
DS1910-0521 1917	Anon.	California, 1916	The Mineral Industry During 1916, Vol. 25, P. 628.	United States, California, West Coast	Blank
DS1910-0522 1917	Anon.	Sterling Diamond Excitement	Texas Miner. Res., Vol. 1, No. 12, OCTOBER P. 26.	United States, Texas, Gulf Coast	Blank
DS1910-0579 1919	Anon.	Releasing Soldiers Will Augment Number of Prospectors and Thereby Increase the Discovery of Gems.	Jewellers Circular Keystone, Vol. 77, No. 24, Jan. 15TH. P. 50.	United States	Blank
DS1910-0407 1914	Clark, B.W.	The Peridotite Dikes of Syracuse and Vicinity	New York State Mus. Bulletin., No. 171, PP. 45-56.	United States, Appalachia, New York, Finger Lakes	Petrography, Related Rocks
DS1910-0036 1910	Cowan, J.L.	Diamond Mines of Arkansaw. #3	Mining And Scientific Press, Vol. 101, AUGUST 6TH. PP. 178-179. ALSO: STH. AFR. MIN. JOUR	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1910-0174 1911	Cowan, J.L.	American Gem Mines and Mining	Mines and MINERALS, Vol. 32, SEPTEMBER PP. 103-105.	United States, Gulf Coast, Arkansas	Blank
DS1910-0037 1910	Crandall, A.R.	Coals of the Licking Valley Region and of Some Contiguous Territory Including Also an Account of Elliott County and Itsdikes.	Kentucky Geological Survey Bulletin., No. 10, 90P.	United States, Appalachia, Kentucky	Geology, Related Rocks
DS1910-0268 1912	Credner, H.	Elemente der Geologie	Leipzig: W. Engelmann, 2nd. Edition., 811P.	United States, North Carolina, Georgia, Appalachia, Brazil	Blank
DS1910-0524 1917	Culin, F.L.	Gems and Precious Stones of Arizona	Arizona State Bureau of Mines Bulletin., No. 48, OR MINERAL TECH. SER. No. 17, 7P.	United States, Arizona, Colorado Plateau	Blank
DS1910-0496 1916	Cushing, H.P.	Geology in the Vicinity of Ogdensburg	New York State Mus. Bulletin., No. 191, 64P.	United States, Appalachia, New York	Regional Geology
DS1910-0039 1910	Darton, N.H., Blackwelder, E., Siebenthal, C.E.	Laramie Sherman Folio, Wyoming	United States Geological Survey (USGS) ATLAS of THE UNITED STATES, 17P.	United States, Wyoming, Rocky Mountains	Regional Geology
DS1910-0343 1913	Demuth, J.	Der Diamantenm arkt Mit Besonderer Beruecksichtigung der Deutsch Suedwest- Afrikanischen Ausbeute.	Volkswirtschaftliche Abhandlung, N.F. HEFT 13	Southwest Africa, Namibia, United States	History, Diamond, Market Economics
DS1910-0525 1917	Doghty, F.W.	Early Diamond Discoveries of North America	Jewellers Circular Keystone, Vol. 74, No. 25, JULY 25TH. P. 41, 43, 45.	United States, Canada	Blank
DS1910-0526 1917	Dondero, C.	El Dorado in the Early Sixties	Eldorado Republican And Weekly Nugget., Feb. 2ND.	United States, California, West Coast	Blank
DS1910-0410 1914	Eakle, A.S.	Minerals of California (1914)	California Mining Bureau Bulletin., No. 67, 226P.	United States, California, West Coast	Blank
DS1910-0500 1916	Ellbogen, M.	Diamonds; Jewellers Circular Keystone, 1916	Jewellers Circular Keystone, Vol. 73, No. 17, Nov. 22ND. P. 67.	United States, South Carolina, Appalachia, Wisconsin, Great Lakes	Blank
DS1910-0501 1916	Evans, B.	Diamonds at Smith Flat	Engineering and Mining Journal, Vol. 102, Nov. 4TH. PP. 814-815. ALSO: Jewellers Circular Keystone , Vol.	United States, California, West Coast, Eldorado	Blank
DS1910-0045 1910	Fogg, F.P.	Genuine Diamond Mines	National Magazine, Vol. 32, SEPTEMBER PP. 604-615.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1910-0046 1910	Fohs, F.J.	The Fluorspar, Lead and Zinc Deposits of Western Kentucky	Economic Geology, Vol. 5, PP. 377-386.	United States, Kentucky, Central States	Blank
DS1910-0182 1911	Franklin, R.	Planted Diamonds	Tech. World., VOL 15, MAY PP. 303-305.	United States, Wyoming, Rocky Mountains	Blank
DS1910-0047 1910	Fuller, J.T.	The Arkansaw Diamond Field 1910	Engineering and Mining Journal, Vol. 89, APRIL 9TH. PP. 767-768.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1910-0183 1911	Fuller, J.T.	The Arkansaw Diamond Field 1911	Engineering and Mining Journal, Vol. 91, P. 6.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence News Item
DS1910-0280 1912	Fuller, J.T.	The Arkansaw Diamond Field 1912	Engineering and Mining Journal, Vol. 93, P. 6.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1910-0349 1913	Fuller, J.T.	Diamond Mining in Arkansaw. #3	Engineering and Mining Journal, Vol. 95, P. 75.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item, Mining Methods, Current Activities
DS1910-0414 1914	Fuller, J.T.	The Arkansaw Diamond Field in 1913	Engineering and Mining Journal, Vol. 97, Jan. 10TH. P. 52.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item, Mining Methods
DS1910-0050 1910	Gardiner, C.R.	Native Gems of North America	Jewellers Circular Keystone, Vol. 61, No. 21, Dec. 21ST. PP. 75-77. ALSO: Vol. 61, No. 22	United States, Gulf Coast, Arkansas, North Carolina, Appalachia, California	News Item
DS1910-0051 1910	Glenn, L.C.	Real Diamonds in Arkansaw 1910	Nashville American., MAY 7TH.	United States, Gulf Coast, Arkansas	News Item
DS1910-0283 1912	Glenn, L.C.	The Arkansaw Diamond Bearing Peridotite Area	Science., Vol. 35, P. 312. ALSO: NEUES JAHRB. 1914 BD. Feb. 23., P. 22	United States, Gulf Coast, Arkansas, Pennsylvania	Geology
DS1910-0284 1912	Glenn, L.C.	Arkansaw Diamond Bearing Peridotite Area	Geological Society of America (GSA), Vol. 23, P. 726. (abstract.).	United States, Gulf Coast, Arkansas, Pennsylvania	Prairie Creek, Petrology
DS1910-0502 1916	Gregory, H.E.	Garnet Deposits of the Navajo Reservation, Arizona and Utah	Economic Geology, Vol. 11, PP. 223-230.	United States, Arizona, Utah, Colorado Plateau	Petrology
DS1910-0528 1917	Gregory, H.E.	Geology of the Navajo Country: a Reconnaissance of Parts Ofarizaona, New Mexico and Utah.	United States Geological Survey (USGS) PROF. PAPER., No. 93, PP. 93-95; P. 102; PP. 146-147.	United States, New Mexico, Utah, Colorado Plateau	Geology
DS1910-0052 1910	Guild, F.N.	The Mineralogy of Arizona	Easton, Pa.: The Chemical Printing Co., 103P.	United States, Arizona, Colorado Plateau	Blank
DS1910-0351 1913	Harpending, A., Wilkins, J.H.	The Great Diamond Hoax and Other Stirring Incidents. in The life of A.h. Harpending.	San Francisco: James H. Barry And Co., 283P.	United States, California, West Coast	Kimberley
DS1910-0418 1914	Hopkins, T.C.	The Geology of the Syracuse Quadrangle	New York State Mus. Bulletin., No. 171, PP. 53-56.	United States, Appalachia, New York	Geology
DS1910-0530 1917	Kellis, W.F.	More Information about Diamonds in Sterling County	Texas Miner. Res., Vol. 2, No. 1, NOVEMBER P. 21.	United States, Texas, Gulf Coast	Blank
DC1910-0646 1913	Kentucky Diamond Mining And Developing Co	Diamonds; Minneapolis: Prospectus, 1913	Minneapolis: Prospectus, 30P.	United States, Kentucky, Appalachia	News Item - Press Release
DS1910-0066 1910	Kohr, H.F.	Those Arkansaw Diamonds	Tech. World., Vol. 13, MAY PP. 288-292.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1910-0196 1911	Kunz, G.F.	Diamonds in Wisconsin. #4	Engineering and Mining Journal, Vol. 91, MAR. 4TH. P. 469.	United States, Great Lakes, Wisconsin	Blank
DS1910-0197 1911	Kunz, G.F.	Precious Stones - Kunz 1910	The Mineral Industry During 1910, Vol. 19, PP. 563-589.	United States, Gulf Coast, Arkansas, South Africa, Southwest Africa, Namibia	Blank
DS1910-0293 1912	Kunz, G.F.	Precious Stones	The Mineral Industry During 1911, Vol. 20, PP. 624-644.	United States, Gulf Coast, Arkansas, South Africa, Southwest Africa, Namibia	Blank
DS1910-0359 1913	Kunz, G.F.	The Morgan Collection of Precious Stones	American MUS. Journal, Vol. 13, APRIL PP. 159-168.	United States, Wisconsin, Alabama, Dane, Lee, Tennessee, Appalachia	Diamonds Notable
DS1910-0423 1914	Kunz, G.F.	Description of Attempt to Work the Area of the Ozark Miningcompany.	The Mineral Industry During 1913, Vol. 22, PP. 640-641.	United States, Gulf Coast, Arkansas, Pennsylvania	Mining Methods
DS1910-0532 1917	Kunz, G.F.	Precious Stones (1917)	The Mineral Industry During 1916, Vol. 26, PP. 593-594.	United States, Gulf Coast, Arkansas, Australia	Blank
DS1910-0533 1917	Kunz, G.F.	Precious Stones - Kunz 1916	Mineral Resources of The United States For 1916, PT. 2, PP. 892-893.	United States, Indiana, Great Lakes	Blank
DS1910-0585 1919	Kunz, G.F.	Precious Stones -kunz 1918	The Mineral Industry During 1918, Vol. 27, PP. 621-622.	United States, Gulf Coast, Arkansas	Blank
DS1910-0468 1915	Leverett, F., Taylor, F.B.	The Pleistocene of Indiana and Michigan and the History of The Great Lakes.	United States Geological Survey (USGS) MONOGRAPH, No. 53, 529P.	United States, Great Lakes	Blank
DM1910-0620 1912	London Mining Journal	Diamonds; Their Occurrences, Recovery Treatment, Sale and Utilization.	London Mining Journal, Vol. 97, No. 4005, MAY 25TH. PP. 527-528.	Brazil, United States, Georgia, South Carolina, South Africa, Colussus, Premier	Genesis, Cutting, Sales
DS1910-0556 1918	Mansfield, G.C.	History of Butte County, Biographical Sketches	Historical Record Company, Los Angeles, PP. 263; P. 301; PP. 369-370.	United States, California, West Coast	Blank
DM1910-0606 1910	Martin, A.H.	Gem Mining in California a Profitable Industry	Mining World., Vol. 33, Dec. 31ST. PP. 1227-1228.	United States, California, West Coast	Blank
DS1910-0203 1911	Martin, A.H.	Mining for Precious Stones in California	Mining and Scientific Press, Vol. 63, MARCH 23RD. PP. 316-317.	United States, California, West Coast	Blank
DS1910-0507 1916	Merrill, F.J.H.	The Counties of San Diego, Imperial	California Mining Bur. Report, No. 14, P. 741.	United States, California, West Coast	Blank
DM1910-0611 1911	Millar, A.Q.	Summary of Diamonds and Diamond Mines	Mining World., Vol. 34, PP. 1125-1127; PP. 1188-1190.	United States, Gulf Coast, Arkansas	Diamond Occurrence, Locations, Catalogue
DS1910-0588 1919	Miller, A.M.	Minerals of Kentucky	Kentucky Geological Survey Department Geol. And Forestry Ser. 5 Bulletin., No. 2, (Vol. 29), 392P.	United States, Kentucky, Appalachia	Blank
DS1910-0426 1914	Miser, H.D.	New Areas of Diamond Bearing Peridotite in Arkansaw	United States Geological Survey (USGS) Bulletin. CONTRIB. of ECONOMIC GEOLOGY, 1912, PT. 1, No. 540, PP. 534-546.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology Property Descriptions
DS1910-0427 1914	Muilenburg, G.A.	On the Occurrence of Precious Stones in the Drift	Iowa Academy of Science Proceedings, Vol. 21, PP. 203-204.	United States, Great Lakes, Canada	History
DS1910-0082 1910	Phillips, W.B.	Precious Stones in Texas (1910)	Jewellers Circular Keystone, Vol. 61, No. 15, Nov. 9TH. P. 89.	United States, Texas, Gulf Coast	Blank
DS1910-0430 1914	Pratt, J.H.	The Occurrence and Utilization of Certain Mineral Resources of the Southern States.	Science., Vol. 39, P. 403. ALSO: ELISHA MITCHELL SCI. SOC. Journal of, Vol.	United States, Gulf Coast, Arkansas, Virginia, North Carolina, Georgia, Appalachia	Diamond Occurrences
DS1910-0301 1912	Purdue, A.H.	Arkansaw DIAMOND BEARING PERIDOTITE AREA.	Geological Society of America (GSA) Bulletin., Vol. 23, P. 726.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology
DS1910-0088 1910	Range, P.	Diamant vorkommen in den Vereinigten Staetten von Amerika	Deut. Kolonialblatt., Vol. 21, PP. 942-943.	United States, Gulf Coast, Arkansas	Diamond Occurrence
DS1910-0209 1911	Richard, L.M.	Diamonds; DahlOnega Nugget, 1911	Dahlonega Nugget., MAY 26TH.	United States, Gulf Coast, Arkansas, Appalachia, Georgia	News Item
DS1910-0432 1914	Sanford, S., Stone, R.W.	Useful Minerals of the U.s #1	United Stated Geological Survey (USGS) Bulletin., No. 585, 250P. P. 29; 58; 72; 98; 143; 194.	United States, Gulf Coast, Arkansas, Georgia, Indiana, Michigan, North Carolina	Diamond Occurrence
DS1910-0536 1917	Sanford, S., Stone, R.W.	Useful Minerals of the U.s. #2	United States Geological Survey (USGS) Bulletin., No. 624, 412P.	United States, Gulf Coast, Arkansas, Appalachia, Georgia, North Carolina	Blank
DS1910-0509 1916	Schaller, W.T.	Gems and Precious Stones: Diamond; 1915	Mineral Resources of The United States For 1915: Part 2, Non, PP. 847-849.	United States	West Coast
DS1910-0537 1917	Schaller, W.T.	Gems and Precious Stones: Diamond; 1916	Mineral Resources of The United States For 1916: Part 2, Non, P. 894.	United States	Great Lakes, West Coast
DS1910-0435 1914	Shiras, T.	Diamonds Mined in Arkansaw Claimed to Grade with the Best The World Produces.	The Keystone., Nov. 15TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	History News Item
DS1910-0436 1914	Shiras, T.	Diamonds of the First Water from Little Known Mines of Arkansas.	Popular Mech. Review., Nov. PP. 657-660.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1910-0309 1912	Smith, L.B.	A Peridotite Dike in Fayette and Green Counties	Penn. Topographical And Geological Survey, REPORT FOR 1910-1912, APPENDIX F, PP. 150-156.	United States, Appalachia, Pennsylvania	Related Rocks
DS1910-0102 1910	Smith, L.P.	Diamonds in Georgia Rocks	Newspaper Clipping Unknown.,	United States, Georgia, Appalachia	Blank
DS1910-0103 1910	Smyth, C.H.JR.	Dikes Near Clintonville, Onondaga County, New York	New York State Mus. Bulletin., No. 140, PP. 26-28.	United States, Appalachia, New York	Petrography
DS1910-0106 1910	Sterrett, D.B.	Diamonds in the United States; 1909	Mineral Resources of The United States For 1909, PT. 2, PP. 757-762.	United States, Gulf Coast, Arkansas, California, West Coast, Montana, Indiana	Blank
DS1910-0107 1910	Sterrett, D.B.	Gems and Precious Stones: Diamond; 1909	Mineral Resources of The United States For 1909: Part 2, Non, PP. 741-765.	United States, South Africa, Southwest Africa, Guyana, Australia	Current Activities, Diamonds Notable
DS1910-0216 1911	Sterrett, D.B.	Gems and Precious Stones: Diamond; 1910	Mineral Resources of The United States For 1910: Part 2, Non, PP. 858-864.	United States, South Africa, Southwest Africa, Guyana, India, Australia	Review Of Current Activities
DS1910-0312 1912	Sterrett, D.B.	Diamonds in the United States; 1911	Mineral Resources of The United States For 1911, PT. 2, P. 1047-1048.	United States, Gulf Coast, Arkansas, Texas, California, West Coast, Illinois	Blank
DS1910-0313 1912	Sterrett, D.B.	Gems and Precious Stones: Diamond; 1911	Mineral Resources of The United States For 1911: Part 2, Non, PP. 1047-1050.	United States, South Africa, Southwest Africa, Zaire, Namibia, Great Lakes	Current Activities
DS1910-0386 1913	Sterrett, D.B.	Gems and Precious Stones: Diamond; 1912	Mineral Resources of The United States For 1912: Part 2, Non, PP. 1037-1042.	United States, South Africa, Great Lakes, Appalachia, West Coast, Rocky Mountains	Current Activities
DS1910-0387 1913	Sterrett, D.B.	Diamonds in the United States; 1912	Mineral Resources of The United States For 1912, PT. 2, PP. 1037-1041.	United States, Texas, Gulf Coast, Arkansas, Indiana, Great Lakes, California	Blank
DS1910-0437 1914	Sterrett, D.B.	Diamonds in the United States; 1913	Mineral Resources of The United States For 1913, PT. 2, PP. 663-666.	United States, Gulf Coast, Arkansas, Pennsylvania, Great Lakes, Indiana	Blank
DS1910-0438 1914	Sterrett, D.B.	Gems and Precious Stones: Diamond; 1913	Mineral Resources of The United States For 1913: Part 2, Non, PP. 663-668.	United States, South Africa, Zaire, Namibia, Appalachia, Rocky Mountains	Current Activities
DS1910-0539 1917	Sterrett, D.B.	Diamonds in the United States; 1916	Mineral Resources of The United States For 1916, PT. 2, PP. 892-893.	United States, Gulf Coast, Arkansas, Great Lakes, Indiana, West Coast, California	Blank
DS1910-0314 1912	Stokes, R.S.G.	Report on the Examination of Properties of the Arkansaw Diamond Mining Company at Murfreesboro.	Copy of Letter To W.w. Mein., Nov. 2ND.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1910-0541 1917	Storms, W.H.	Diamonds in California, 1917 #2	Mining and Scientific Press, Vol. 114, PP. 273-275.	United States, California, West Coast	Blank
DS1910-0542 1917	Tucker, W.B., Waring, C.A.	Mines and MINERAL RESOURCES of the COUNTIES of BUTTE, LASSEN MADOC, SUTTER and TEHAMA.	California State Printing Office., 91P.	United States, California, West Coast, Montana	Blank
DS1920-0024 1920	Anon.	California Diamonds, 1920	San Francisco Chronicle., Feb. 12TH. ALSO: NEW YORK GLOBE, MAY 15TH.	United States, California, West Coast	Blank
DS1920-0097 1922	Anon.	Diamonds in Arkansaw; June, 1922	Engineering and Mining Journal, Vol. 113, JUNE 10TH. P. 990.	United States, Gulf Coast, Arkansas	News Item
DS1920-0098 1922	Anon.	Diamond Mining Is a Flourishing Arkansaw Industry	Current Opinion., Vol. 73, DECEMBER PP. 788-789.	United States, Gulf Coast, Arkansas	News Item
DS1920-0143 1923	Anon.	Review of S.h. Ball Paper Entitled the Geologic and Geographic Occurrence of Precious Stones.	Mining Engineering Journal of South Africa, Vol. 33, PT. 2, Jan. 20TH. PP. 531-532. MAP.	United States	Blank
DS1920-0144 1923	Anon.	Diamond Deposits Believed Likely	Perris Progress, MARCH 15TH.	United States, California, West Coast	Blank
DS1920-0145 1923	Anon.	Diamonds in the United States; August, 1923	Indian Engineering, Vol. 74, AUGUST 11TH. P. 75.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1920-0146 1923	Anon.	Diamonds from Arkansaw. #1	Jewellers Circular Keystone, Vol. 86, No. 18, JUNE 6TH. P. 65.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1920-0147 1923	Anon.	Diamonds from Arkansaw. #2	Engineering and Mining Journal, Vol. 115, JUNE 16TH, P. 1071.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1920-0180 1924	Anon.	Directory of Arkansaw Industries	Arkansaw BUREAU of Mines, MANUFACTURERS AND AGRICULTURE., 174P.	United States, Gulf Coast, Arkansas	Blank
DS1920-0220 1925	Anon.	Diamond Found in Roselawn Cemetery, Little Rock	Letter To Sam Signed John, In G.f. Kunz Collection., MAY 30TH.	United States, Gulf Coast, Arkansas	Blank
DS1920-0267 1926	Anon.	Diamond Mining as Done in Pike County	Unknown, 1P.	United States, Gulf Coast, Arkansas	Mining Methods
DS1920-0268 1926	Anon.	Arkansaw Diamond Mines	Letter To G.f. Kunz, DATED JULY 28TH.	United States, Gulf Coast, Arkansas	Blank
DS1920-0322 1927	Anon.	American Diamonds. #4	Scientific Monthly, Vol. 24, MARCH P. 285.	United States	Blank
DS1920-0323 1927	Anon.	Diamonds in Arkansaw, 1927	Mentor., SEPT., P. 65.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence News Item
DS1920-0025 1920	Ball, S.H.	Diamonds; Engineering and Mining Journal, 1920	Engineering and Mining Journal, Vol. 109, MAY 29TH. PP. 1202-1209.	South Africa, United States, Global	Origin, Classification, Location
DS1920-0429 1929	Blank, E.W.	Diamonds in the United States; 1929	Rocks And Minerals, Vol. 4, PP. 37-40.	United States, Great Lakes, Gulf Coast, West Coast, Rocky Mountains	Diamond Occurrence
DS1920-0373 1928	Bradley, W.W.	California's Commercial Non-metallic Minerals	Mining Congress Journal, Vol. 14, No. 9, SEPTEMBER PP. 669-718.	United States, California, West Coast	Blank
DS1920-0326 1927	Branner, G.C.	Outlines of Arkansaw Mineral Resources	Arkansaw STATE Geological Survey, 352P.	United States, Gulf Coast, Arkansas	Blank
DS1920-0431 1929	Branner, G.C.	Geology of Americas Diamond Fields	Pan. American Geol. (des Moines), Vol. 51, No. 5, PP. 339-353.	United States, Gulf Coast, Arkansas, Pennsylvania, Great Lakes	Diamond Occurrences, Geology, History
DS1920-0278 1926	Crawford, A.L.	A Petrographic Study of Certain Precambrian Rocks of Medicine Bow Mountains, Wyoming.	Msc. Thesis, Stanford University, 124P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Petrography, Regional Studies
DS1920-0436 1929	Croneis, C.G., Billings, M.P.	New Areas of Alkaline Rocks in Central Arkansaw	Journal of GEOLOGY, Vol. 37, No. 6, PP. 542-561.	United States, Gulf Coast, Arkansas	Regional Geology
DS1920-0279 1926	Dacy, G.H.	America's Infant Diamond Industry	Compressed Air Magazine, Vol. 31, MARCH PP. 1553-1555.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1920-0152 1923	Eakle, A.S.	Minerals of Californiaá(1923)	California State Mining Bureau Report Bulletin., No. 91, 328P.	United States, California, West Coast, Nevada, Siskiyou, Trinity, Fresno	Blank
DS1920-0282 1926	Engeln, O.D.Von.	The Geography of the Ithaca New York Region	Association American GEOGRAPHERS ANNALS, Vol. 16, No. 3, PP. 124-150.	United States, Appalachia, New York	Geography
DS1920-0031 1920	Ferguson, J.G.	Outlines of Geology, Soils and Minerals of the State of Arkansas.	Arkansaw STATE Geological Survey, 182P.	United States, Gulf Coast, Arkansas	Blank
DS1920-0333 1927	Gordon, C.H.	Mica Peridotite Dike in Union County, Tennessee	Geological Society of America (GSA) Bulletin., Vol. 28, PP. 125-126.	United States, Appalachia, Tennessee	Related Rocks, Geology
DS1920-0155 1923	Gould, C.N.	Crystalline Rocks of the Plains	Geological Society of America (GSA) Bulletin., Vol. 34, PP. 54-55.	United States, Kansas, Central States, Wilson	Blank
DS1920-0230 1925	Grawe, O.R.	Some Breccia of the St. Louis Formation in the St. Louis Missouri Region.	Washington University Studies, Vol. 13, SCI. SER., No. 1, PP. 45-62.	Missouri, United States, Central States	Cryptoexplosion
DS1920-0072 1921	Hafer, C.	Placer Gold in Indiana	Engineering and Mining Journal, Vol. 111, JUNE 18TH. P. 1023.	United States, Indiana, Great Lakes	Blank
DS1920-0444 1929	Halton, W.L.	Magnet Cove Arkansaw and Vicinity	American MINERALOGIST., Vol. 14, No. 12, PP. 484-487.	United States, Gulf Coast, Arkansas, Hot Spring County	Mineralogy
DS1920-0448 1929	Heiland, C.A.	Geophysical Methods of Prospecting: Principles and Recent Successes.	Col. Sch. Mines Quarterly, Vol. 24, MARCH, PP. 1-163. (P. 45.).	United States, Gulf Coast, Arkansas, Pennsylvania	Geophysics, Prospecting Methods, Kimberlite
DS1920-0106 1922	Hoffman, A.	California Diamonds, 1922	Manufacturer Jeweller., Vol. 70, MARCH 16TH. P. 522.	United States, California, West Coast	Blank
DS1920-0186 1924	Honess, A.P., Graeber, C.K.	A New Occurrence of an Igneous Dike in Southwestern Pennsylvania.	American Journal of Science, SER. 5, Vol. 7, PP. 313-315.	United States, Appalachia, Pennsylvania	Dixonville, Indiana County, Related Rocks, Geology
DS1920-0284 1926	Honess, A.P., Graeber, C.K.	Petrography of the Mica Peridotite Dike at Dixonville, Pennsylvania #2	American Journal of Science, SER. 5, Vol. 12, PP. 484-494.	United States, Appalachia, Pennsylvania	Petrography, Related Rocks
DS1920-0285 1926	Honess, A.P., Graeber, C.K.	Petrography of the Mica Peridotite Dike at Dixonville, Pennsylvania #1	Pennsylvania State Coll. Min. Met. Exploration Bulletin., No. 2, 16P.	United States, Appalachia, Pennsylvania	Related Rocks, Petrography
DS1920-0037 1920	Kunz, G.F.	Arkansaw Mining Industry	The Mineral Industry During 1919, Vol. 28, PP. 603-604.	United States, Gulf Coast, Arkansas	Blank
DS1920-0077 1921	Kunz, G.F.	Diamonds of Arkansaw; 1920	The Mineral Industry During 1920, Vol. 29, PP. 216-217.	United States, Gulf Coast, Arkansas	Blank
DS1920-0078 1921	Kunz, G.F.	Diamonds at Pike County, Arkansaw	Geological Society of America (GSA) Bulletin., Vol. 32, P. 165.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1920-0159 1923	Kunz, G.F.	Diamonds in Arkansaw, 1922	The Mineral Industry During 1922, Vol. 31, PP. 603-605.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1920-0239 1925	Kunz, G.F.	Diamond in Arkansaw. #2	The Mineral Industry During 1924, Vol. 33, P. 618.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1920-0390 1928	Kunz, G.F.	Precious Stones Used by Prehistoric Inhabitants of North America.	International CONGRESS of AMERICANISTS 23RD. MEETING Proceedings, SEPT. PP. 60-66.	United States	Blank
DS1920-0109 1922	Logan, C.A.	Butte County	California Mining Bureau Report., No. 24, P. 177.	United States, California, West Coast	Blank
DS1920-0454 1929	Logan, C.A.	Economic Geology of Indiana	Indiana Department Conserv. Handbook of Indiana Geology, No. 21, PP. 578-1058.	United States, Indiana, Great Lakes	Geology, Diamond Occurrence
DS1920-0110 1922	Long, E.T.	Minor Faulting in the Cayuga Lake Region	American Journal of Science, SER. 5, Vol. 3, PP. 229-248.	United States, Appalachia, New York	Regional Geology
DS1920-0342 1927	Macdill, M.	American Diamonds. #5	Literature Digest., Vol. 92, No. 9, PP. 23-24.	United States	Blank
DS1920-0160 1923	Martens, J.H.C.	Study of Igneous Rocks of Ithaca, New York and Vicinity	Geological Society of America (GSA) Bulletin., Vol. 34, No. 1, P. 99.	United States, Appalachia, New York	Geology, Related Rocks
DS1920-0161 1923	Martens, J.H.C.	A Study of the Basic Dikes of the Ithaca Region	Msc. Thesis, Cornell University, 101P.	United States, Appalachia, New York	Petrology
DS1920-0188 1924	Martens, J.H.C.	Igneous Rocks of Ithaca, New York and Vicinity	Geological Society of America (GSA) Bulletin., Vol. 35, PP. 305-320.	United States, Appalachia, New York	Geology, Related Rocks
DS1920-0113 1922	Miser, H.D.	Geology and General Topographic Features of Arkansaw	Little Rock, Arkansaw Bureau of Mines, Privately Publishing, PP. 11-14.	United States, Gulf Coast, Arkansas	Regional Geology
DS1920-0460 1929	Miser, H.D., Purdue, A.H.	Geology of the Dequeen and Caddo Gap Quadrangles, Arkansaw	United States Geological Survey (USGS) Bulletin., No. 808, 195P.	United States, Gulf Coast, Arkansas	Geology
DM1920-0490 1927	Miser, H.D., Ross, C.S.	Arkansaw Diamond Industry	Abrasive Industry, Vol. 8, SEPT. PP. 285-288.	United States, Gulf Coast, Arkansas	Blank
DS1920-0114 1922	Miser, H.D., Ross, C.S.	Diamond Bearing Peridotite in Pike County, Arkansaw	Economic Geology, Vol. 17, PP. 662-674.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology
DS1920-0162 1923	Miser, H.D., Ross, C.S.	Volcanic Rocks in the Upper Cretaceous of Southwestern Arkansas and Southeast Oklahoma #1	American Journal of Science, Vol. 9, Feb. PP. 113-126.	United States, Gulf Coast, Arkansas	Geology
DS1920-0163 1923	Miser, H.D., Ross, C.S.	Diamond Bearing Peridotites in Pike County, Arkansaw	United States Geological Survey (USGS) Bulletin., No. 735-I, PP. 279-322.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, Petrology
DS1920-0164 1923	Miser, H.D., Ross, C.S.	Peridotite Dikes in Scott County, Arkansaw	United States Geological Survey (USGS) Bulletin., No. 735-H, PP. 271-278.	United States, Gulf Coast, Arkansas, Tennessee	Geology, Petrology
DS1920-0241 1925	Miser, H.D., Ross, C.S.	Volcanic Rocks in the Upper Cretaceous of Southwestern Arkansas and Southeastern Oklahoma #2	American Journal of Science, 5TH. SER. Vol. 9, PP. 113-126.	United States, Gulf Coast, Arkansas, Oklahoma	Regional Geology
DS1920-0165 1923	Mitchell, G.E.	Diamond Mines of the United States (us)	Radio Broadcast., MAY 7TH. 16P.	United States	Blank
DS1920-0166 1923	Mitchell, G.J.	Diamond Deposits in Arkansaw	Engineering and Mining Journal, Vol. 116, No. 17, AUG. 18TH. PP. 285-287.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1920-0189 1924	Monett, V.E.	The Finger Lakes of Central New York	American Journal of Science, N.S. 5, Vol. 8, No. 43, PP. 33-53.	United States, Appalachia, New York	Regional Geology
DS1920-0038 1920	Moore, R.C., Haynes, W.P.	An Outcrop of Basic Igneous Rock in Kansas	American Association of Petroleum Geologists, Vol. 4, PP. 183-187.	United States, Central States, Kansas, Wilson	Related Rocks, Diatreme
DS1920-0080 1921	Mundorff, R.F.	Diamond Mining in Arkansaw. #1	The Keystone., Vol. 48, No. 6, FEBRUARY, P. 109; P. 111; P. 113.	United States, Gulf Coast, Arkansas	History News Item
DS1920-0167 1923	Mundorff, R.F.	Real Diamonds in Arkansaw 1923	Illustrated World., Vol. 38, PP. 708-710.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence News Item
DS1920-0395 1928	Payne, H.M.	The Undeveloped Mineral Resources of the South	Washington: American Mining Congress, 368P.	United States, Appalachia	Blank
DS1920-0347 1927	Reagan, A.B.	Garnets in the Navajo Country	American MINERALOGIST., Vol. 12, P. 414.	United States, Rocky Mountains, New Mexico, Colorado Plateau	Mineralogy
DS1920-0041 1920	Reyburn, S.W., Zimmerman, S.H.	Diamonds in Arkansaw, 1920	Engineering and Mining Journal, Vol. 109, No. 17, PP. 983-986.	United States, Gulf Coast, Arkansas	Diamond Occurrence, Geology
DS1920-0042 1920	Richardson, C.H.	The Mineralogy of Kentucky; a Description of the Physical And Chemical Properties of Minerals Native to Kentucky. Two Seperate Geological papers by J.s. Hudnall and E.f. Cash and C.f. Allen.	Frankfort: Kentucky Geological Survey, SER. IV, Vol. 27, 170P.	United States, Kentucky, Appalachia	Blank
DS1920-0248 1925	Rickard, T.A.	The Great Diamond Hoax. How a Colorado Desert Was Salted With Gems in 1872.	Engineering and Mining Journal, Vol. 119, MAY 30TH. PP. 884-888.	United States, Arizona, Colorado Plateau	Blank
DS1920-0298 1926	Ross, C.S.	Nepheline Hauynite Alnoite from Winnett Montana	American Journal of Science, Vol. 11, 5TH SER. PP. 218-227.	Montana, United States	Blank
DS1920-0467 1929	Ross, C.S., Miser, H.D., Stephenson, L.W.	Water-laid Volcanics of Early Upper Cretaceous Age in Southwestern Arkansaw, Southern Oklahoma and Northeastern Texas.	United States Geological Survey (USGS) PROF. PAPER., No. 154F, PP. 175-202.	United States, Gulf Coast, Arkansas, Texas, Oklahoma	Regional Geology, Stratigraphy
DS1920-0300 1926	Scott, W.	A Diamond Quest in California	Scientific American., Vol. 134, MAY MAY PP. 312-313.	United States, California, West Coast, Montana	Blank
DS1920-0302 1926	Shannon	Minerals of Idaho	U.s. Nat. Museum Bulletin., No. 131	United States, Idaho, Rocky Mountains	Blank
DS1920-0086 1921	Sheldon, P.G.	A New Dike Near Ithaca, New York	Science., N.S. Vol. 53, PP. 20-21.	United States, Appalachia, New York	Petrography, Related Rocks
DS1920-0194 1924	Sheldon, P.G.	On the Association of Faulting With Dike Intrusion	Journal of GEOLOGY, Vol. 35, PP. 353-367.	United States, Appalachia, New York	Blank
DS1920-0195 1924	Shiras, T.	The Description of Diamonds in Arkansaw	Manufacturers Record., JUNE 19TH. PP. 73-74.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Morphology
DS1920-0196 1924	Shiras, T.	British American Company Leases Diamond Fields in Arkansaw	Engineering and Mining Journal, Vol. 117, MAY 10TH. P. 779.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1920-0471 1929	Sperry, A.B.	The Intrusive Rocks of Riley County, Kansas	Kansas Acad. Science Transactions, Vol. 32, ABSTRACT ONLY.	United States, Kansas, Central States	Blank
DS1920-0044 1920	Stoddard, B.H.	Gems and Precious Stones: Diamond; 1919	Mineral Resources of The United States For 1919: Part 2, Non, PP. 166-171.	United States, Gulf Coast, Arkansas, Pennsylvania, South Africa, Ghana	Blank
DS1920-0087 1921	Stoddard, B.H.	Gems and Precious Stones: Diamond; 1920	Mineral Resources of The United States For 1920: Part 2, Non, PP. 216-217.	United States, Gulf Coast, Arkansas	Blank
DS1920-0119 1922	Stoddard, B.H.	Gems and Precious Stones: Diamond; 1921	Mineral Resources of The United States For 1921: Part 2, Non, P. 144.	United States	Blank
DS1920-0254 1925	Wilkes, W.N.	Minerals of Arkansaw	Arkansaw Bureau of Mines MANUF. AGRIC. Bulletin. FOR 1924, 127P.	United States, Gulf Coast, Arkansas	Diamond
DM1930-0319 1935	Anon.	Diamonds; Fortune, 1935	Fortune., Vol. 11, No. 5, MAY, PT. 1, PP. 66-74; No. 6, PT. 2, PP. 96-1	United States, Gulf Coast, Arkansas, South Africa, Europe	Popular Account Of History Of Diamond Locations
DS1930-0094 1932	Anon.	Diamond Found Near Oroville	San Francisco Chronicle., Feb. 16TH.	United States, California, West Coast	Blank
DS1930-0095 1932	Anon.	Diamonds in American Gravels	Scientific American., Vol. 146, FEBRUARY PP. 119-120.	United States, Great Lakes, Michigan, Wisconsin, Illinois	Geomorphology, Diamond Occurrence, History
DS1930-0096 1932	Anon.	Diamonds... Extract from Arkansaw Geological Survey's Outlines of Arkansaw Mineral Resources Published in 1927 and Producers and Production Figures Revised to 1931.	Unknown., 7P.	United States, Gulf Coast, Arkansas, Pennsylvania	Production, History, Diamonds, Prospecting
DS1930-0212 1936	Anon.	Diamonds of California; 1935	Mineral Resources of The United States For 1935, P. 1209.	United States, California, West Coast	Blank
DS1930-0213 1936	Anon.	Diamond Finds: New Capital Obtained to Re-open Mine in Arkansas Ghost Town.	Literary Digest., Vol. 122, Nov. 14TH. PP. 9-10.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Mining News Item
DS1930-0240 1937	Anon.	World Diamond Production Chart 1932-1936	Minerals Yearbook During 1932-1935, P. 1438.	South Africa, United States	Current Activities
DS1930-0010 1930	Ball, S.H.	Diamond Sources other Than Kimberlite	International CONGRESS Mines 6TH., Vol. 1, PP. 13-16.	South Africa, Global, United States	Related Rocks, Non-kimberlitic Source Rocks
DS1930-0011 1930	Ball, S.H., Singewald, J.T.Jr.	An Alnoite Pipe, its Contact Phenomena and Ore Deposition Near Avon, missouri. a Discussion	Journal of Geology, Vol. 38, No. 5, PP. 456-459.	Missouri, United States, Central States	Alnoite, Related Rocks, Diatreme
DS1930-0056 1931	Blank, E.W.	Arkansaw Has Yielded Some Fine Diamonds	National Jeweller., Vol. 27, JANUARY PP. 44-46.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1930-0153 1934	Blank, E.W.	Diamond Finds in the United States #1	Rocks And Minerals, Vol. 9, PP. 10-12; PP. 23-26; PP. 29-40; PP. 147-150; PP. 16	United States, Great Lakes, Appalachia, Kentucky, North Carolina, Alabama	Diamond Occurrences, History
DS1930-0184 1935	Blank, E.W.	Diamond Finds in the United States #2	Rocks And Minerals, Vol. 10, PP. 7-10; PP. 23-26; PP. 39-40.	United States, Gulf Coast, Arkansas, Great Lakes	Diamond Occurrence
DS1930-0291 1939	Born, K.E., Wilson, C.W.Je.	The Howell Structure, Lincoln County, Tennessee	Journal of Geology, Vol. 47, No. 4, PP. 371-386.	United States, Central States, Western Tennessee	Cryptoexplosion
DS1930-0271 1938	Bradley, W.W.	California's Commercial Minerals	Mining Congress Journal, Vol. 24, No. 9, P. 19.	United States, California	Diamond Occurrences
DS1930-0292 1939	Branner, G.C.	Wealth of Arkansaw	Arkansaw Geological Survey, 135P.	United States, Gulf Coast, Arkansas	Diamond Industry Discussed Briefly
DS1930-0293 1939	Branner, G.C.	State Mineral Survey of Arkansaw	Economic Geology, Vol. 34, No. 8, P. 941. (abstract.).	United States, Gulf Coast, Arkansas	Diamond Occurrence, Geology
DS1930-0018 1930	Bridge, J.	Geology of the Eminence and Cardareva Quadrangles	Missouri Bureau of Geology And Mines, SER. 2, Vol. 24, No. 228, 4P.	Missouri, United States, Central States	Alnoite, Related Rocks, Avon Diatreme
DS1930-0185 1935	Brock, C.L.	Titanium at Magnet Cove, Arkansaw	Rocks And Minerals, Vol. 10, No. 11, NOVEMBER P. 169.	United States, Gulf Coast, Arkansas, Hot Spring County	Blank
DS1930-0103 1932	Bucher, W.H.	Wells Creek Basin, Tennessee, a Typical Cryptovolcanic Structure.	Geological Society of America (GSA) Bulletin., Vol. 43, No. 1, PP. 147-148.	United States, Central States, Western Tennessee	Cryptoexplosion
DS1930-0058 1931	Croneis, C.G.	Tectonics of Arkansaw Paleozoics	Pan. American Geol., Vol. 55, No. 1, PP. 1-8.	United States, Gulf Coast, Arkansas	Geotectonics
DS1930-0021 1930	Croneis, C.G., Billings, M.P.	Igneous Rocks in Central Arkansaw	Arkansaw Geological Survey Bulletin., No. 3, PP. 149-162.	United States, Gulf Coast, Arkansas	Regional Geology
DS1930-0134 1933	Dake, H.C.	Uncommon and Rare Minerals of Oregon	Oregon Miner., Vol. 1, No. 6, NOVEMBER P. 6.	United States, Oregon, Rocky Mountains	Blank
DS1930-0157 1934	Fernquist, C.O.	Gem Minerals of Idaho	Oregon Miner., Vol. 2, No. 2, FEBRUARY P. 6; P. 14.	United States, Idaho, Rocky Mountains	Blank
DS1930-0244 1937	Fraser, D.M.	Basic Rocks in the Eastern Pennsylvania Highland	American Geophysical Union Transactions 18TH. ANNUAL MEETING, PP. 249-254.	United States, Appalachia, Pennsylvania	Geology
DS1930-0159 1934	Furcron, A.S.	Igneous Rocks of the Shenandoah National Park Area	Journal of GEOLOGY, Vol. 42, No. 4, PP. 400-410.	United States, Appalachia, Virginia	Related Rocks, Geology
DS1930-0273 1938	Graves, H.B. JR.	The Precambrian Structure of Missouri	Academy of Science ST. LOUIS Transactions, Vol. 29, No. 5, PP. 111-164.	Missouri, United States, Central States	Blank
DS1930-0193 1935	Hall, G.M., Amick, H.C.	Mica Peridotite in Tennessee	American Mineralogist., Vol. 20, No. 3, PP. 204-205.	United States, Appalachia, Tennessee	Related Rocks, Geology
DS1930-0162 1934	Heiland, C.A.	Precious Stones (1934)	American Institute Mining Engineering Transactions, Vol. 110, P. 571.	United States, Gulf Coast, Arkansas	Diamond Occurrence
DS1930-0066 1931	Hudson, G.B.	The Fault Systems of the Northern Champlain Valley, New York	New York State Mus. Bulletin., No. 286, PP. 5-59.	United States, Appalachia, New York	Tectonics, Geology
DS1930-0067 1931	Hudson, G.B., Cushing, H.P.	The Dike Invasions of the Champlain Valley, New York	New York State Mus. Bulletin., No. 286, PP. 81-112.	United States, Appalachia, New York	Geology, Petrology, Tectonics
DS1930-0298 1939	Hurlburt, C.S.JR., Griggs, D.	Igneous Rocks of the Highwood Mountains, Montana. Part I. The Laccoliths.	Geological Society of America (GSA) Bulletin., Vol. 50, PP. 1043-1112.	United States, Montana, Rocky Mountains	Blank
DS1930-0111 1932	Knight, G.L.	Kansas Laccoliths	Journal of Geology, Vol. 40, PP. 1-15.	United States, Kansas, Central States, Wilson	Blank
DS1930-0305 1939	Ksanda, C.J., Henderson, E.P.	Identification of Diamond in the Canon Diablo Iron	American MINERALOGIST., Vol. 24, PP. 677-680.	United States, Arizona, Colorado Plateau	Meteorite
DS1930-0071 1931	Kunz, G.F.	Diamonds in North America. #1	Geological Society of America (GSA) Bulletin., Vol. 42, No. 1, PP. 221-222.	United States, Gulf Coast, Arkansas, Great Lakes, Canada, Ontario, Peterborough	Diamond Occurrence
DS1930-0072 1931	Kunz, G.F.	Diamonds in Arkansaw, 1930	The Mineral Industry During 1930, Vol. 39, P. 522.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1930-0073 1931	Landes, K.K.	A Paragenetic Classification of the Magnet Cove Minerals	American MINERALOGIST., Vol. 16, No. 8, PP. 313-326.	United States, Gulf Coast, Arkansas, Hot Spring County	Mineralogy
DS1930-0197 1935	Larsen, E.S., Hurlburt, C.S. JR., Burgess, C.H., Griggs, D.T.	The Igneous Rocks of the Highwood Mountains of Central Montana.	American GEOPYS. UNION, Transactions 16TH. MEETING, PP. 288-292.	United States, Montana, Rocky Mountains	Blank
DS1930-0074 1931	Newland, D.H.	An Occurrence of Peridotite Near Ogdensburg, New York	New York State Mus. Bulletin., No. 286, PP. 113-117.	United States, Appalachia, New York	Geology
DS1930-0259 1937	Newland, D.H.	Herkimer County Quartz Crystals	Rocks And Minerals, Vol. 12, PP. 36-37.	United States, Appalachia, New York	Herkimer Diamonds
DS1930-0308 1939	Nininger, H.H.	Meteorites	Popular Astronomy, Vol. 47, P. 504.	United States, Arizona, Colorado Plateau	Blank
DS1930-0280 1938	Pabst, A.	Minerals of California (1938)	California Division of Mines, Bulletin. No. 113, PP. 15-16.	United States, California, West Coast, Amador, Montana, El Dorado, Fresno, Nevada	Blank
DS1930-0175 1934	Reed, J.C.	Geology of the Potsdam Quadrangle	New York State Mus. Bulletin., No. 297, 98P.	United States, Appalachia, New York	Geology
DS1930-0120 1932	Rickard, T.A.	A History of American Mining	New York: Mcgraw Hill, 419P.	United States, Arizona, Colorado Plateau	Blank
DS1930-0199 1935	Rickard, T.A.	The Great Diamond Hoax (1935)	Engineering and Mining Journal, Vol. MAY 30TH.	United States, California, West Coast	Blank
DS1930-0262 1937	Rust, G.W.	Preliminary Notes on Explosive Volcanism in Southeastern Missouri	Journal of Geology, Vol. 45, PP. 48-75.	Missouri, United States, Central States	Alnoite, Related Rocks, Diatreme
DS1930-0041 1930	Singewald, J.T., Milton, C.	An Alnoite Pipe, its Contact Phenomena and Ore Deposition Near Avon, missouri.	Journal of Geology, Vol. 38, No. 1, PP. 54-66.	Missouri, United States, Central States	Related Rocks, Diatreme
DS1930-0083 1931	Smith, B.	Notes on the Clintonville Dikes, Onondaga County, New York	New York State Mus. Bulletin., No. 286, PP. 119-126.	United States, Appalachia, New York	Petrography
DS1930-0043 1930	Stearn, N.H.	A Geomagnetic Survey of the Bauxite Region in Central Arkansas.	Arkansaw Geological Survey Bulletin., No. 5, 16P.	United States, Gulf Coast, Arkansas	Geophysics
DS1930-0121 1932	Stearn, N.H.	Practical Geomagnetic Exploration With the Hotchkiss Superdi	American Institute of Mining and Metallurgy. Transactions, Vol. 97, PP. 195-199.	United States, Gulf Coast, Arkansas, Pennsylvania	Kimberlite, Geophysics, Groundmag, Prairie Creek, Crater Of Diamonds
DS1930-0150 1933	Tarr, W.A., Kellor, W.D.	A Post-devonian Intrusion in Southeastern Missouri	Journal of Geology, Vol. 41, PP. 815-823.	Missouri, United States, Central States	Alnoite, Related Rocks
DS1930-0288 1938	Wuestner, H.	Collecting Minerals in Southwestern Ohio	Rocks And Minerals, Vol. 13, No. 9, PP. 259-268.	United States, Ohio, Great Lakes	Diamond Occurrence
DM1940-0227 1941	Anon.	Domestic Diamonds	Time., Vol. 38, JULY 21ST. P. 71.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1940-0022 1941	Anon.	Arkansaw Diamond Mine Changes Hands	Gems And Gemology, Vol. 4, FALL, P. 168.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1940-0065 1943	Anon.	Arkansaw Diamond Mine. #3	Gems And Gemology, Vol. 6, SPRING P. 72.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1940-0081 1944	Anon.	Diamonds in Arkansaw, 1943	Mineral Resources of The United States For 1943, P. 1567.	United States, Gulf Coast, Arkansas	Blank
DS1940-0107 1946	Anon.	List of Gem and Semi Precious Stones in Arkansaw	Arkansaw MINERAL Bulletin., No. 5, PP. 3-8.	United States, Gulf Coast, Arkansas	Diamonds
DS1940-0108 1946	Anon.	Former Diamond Producing Area Is Under Magnetic Survey	Engineering and Mining Journal, Vol. 147, P. 138.	United States, Gulf Coast, Arkansas, Pennsylvania	Geophysics, Kimberlite News Item
DS1940-0142 1947	Anon.	Diamonds in the United States; August, 1947	The Diamond News And South African Jeweller., AUGUST, PP. 20-22.	United States, Gulf Coast, Arkansas	Diamond Occurrence News Item, History Of Finds
DS1940-0143 1947	Anon.	Diamonds in the United States; 1946	Mineral Resources of The United States For 1946, P. 547.	United States, Gulf Coast, Arkansas, Rocky Mountains, Idaho	Blank
DS1940-0144 1947	Anon.	Diamonds in Idaho, 1947	Lapidary Journal, Vol. 2, P. 98.	United States, Idaho, Rocky Mountains	Blank
DS1940-0024 1941	Ball, S.H.	The Mining of Gems, Ornamental Stones by American Indians	Washington: Anthropological Paper., No. 13, Publishing SMITHSONIAN Institute Bulletin. No. 128, 77P.	United States	Kimberley, History
DS1940-0025 1941	Ball, S.H.	The Mining of Gems and Ornamental Stones by American Indians	Washington: Anthropological Papers, Smithsonian Bur. American E, No. 13, ALSO Bulletin., No. 128, 77P.	United States	Kimberlite, Diamond, Kimberley, History
DS1940-0082 1944	Ball, S.H.	The Diamond Industry in 1943. 19th. Annual Review	Jewelers Circular Keystone., PP. 1-24.	United States, Gulf Coast, Arkansas	Diamond Production Statistics
DS1940-0145 1947	Ball, S.H.	New Diamond Company Started in Arkansaw	The Diamond Industry In 1946,	United States, Gulf Coast, Arkansas, Pennsylvania	Investment
DS1940-0202 1949	Ball, S.H.	Precious Stones (1949)	In: Industrial Minerals And Rocks. (non-mettalics And Other, CHAPTER 35, PP. 714-747.	Global, United States	Kimberlite, Diamond, Production, Statistics
DS1940-0042 1942	Branner, G.C.	Mineral Resources of Arkansaw	Arkansaw Geological Survey Bulletin., No. 6, 101P.	United States, Gulf Coast, Arkansas	Diamond Occurrences
DS1940-0093 1945	Buhlis, R.	Arkansaw Diamonds. #2	The Mineralogist (portland, Oregon), Vol. 13, No. 2, Feb. P. 46.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineralogy
DS1940-0027 1941	Buie, B.F.	Igneous Rocks of the Highwood Mountains, Montana. Pt. 3. Dikes and Related Intrusions.	Geological Society of America (GSA) Bulletin., Vol. 52, No. 11, PP. 1753-1809.	Montana, United States, Rocky Mountains	Diatreme
DS1940-0204 1949	Chase, I.	The Court of Jewels	New York: United Hospital Fund., 14P.	United States	Diamonds Notable
DS1940-0067 1943	Colony, R.J.	Unusual Lamprophyric Dikes in the Manhattan Schist of New York.	Geological Society of America (GSA) Bulletin., Vol. 54, No. 11, PP. 1693-1711.	United States, Appalachia, New York	Petrography
DS1940-0148 1947	Dreyer, R.M.	Magnetic Survey of the Bala Intrusive, Riley County, Kansas. #1	Kansas Geological Survey Bulletin, No. 70, PT. 5, PP. 107-115.	United States, Kansas, Central States	Kimberlite, Geophysics
DS1940-0149 1947	Dreyer, R.M.	Magnetic Survey of the Bala Intrusive, Riley County, Kansas. #2	Kansas Geological Survey Bulletin, No. 70, Report OF STUDIES, PT. 2, PP. 21-28; PT. 5, PP. 107-	United States, Kansas, Central States	Kimberlite, Geophysics, Groundmag
DS1940-0175 1948	English, R.M., Grogan, R.M.	Omaha Pool and Mica Peridotite Intrusives Gallatin County, Illinois.	Illinois Geological Survey Report Inv., No. 130, PP. 189-212.	United States, Illinois, Kentucky, Great Lakes	Blank
DS1940-0005 1940	Filmer, E.A.	New Peridotite Dikes at Ithaca	Pan American Geologist., Vol. 73, P. 111.	United States, Appalachia, New York	Petrography
DS1940-0006 1940	Filmer, E.A.	Dikes as Possible Barriers to Natural Gas	Pan American Geologist., Vol. 73, PP. 332-336.	United States, Appalachia, New York	Petrology
DS1940-0207 1949	Foshag, W.F., Switzer, G.	Gem Stones; United States Bureau of Mines, 1949	United States Bureau of Mines MINERALS YEARBOOK,	United States	Blank
DS1940-0208 1949	Fryklund, V.C.Jr.	The Titanium Ore Deposits of Magnet Cove, Hot Spring County, Arkansaw.	Ph.d. Thesis, University Minnesota.,	United States, Gulf Coast, Arkansas, Hot Spring County	Titanium
DS1940-0084 1944	Gray, J.W.	Historic Romance of Diamonds	Indiana: Graessle-mercer.,	United States	Kimberlite
DS1940-0048 1942	Hack, J.T.	Sedimentation and Volcanism in the Hopi Buttes, Arizona	Geological Society of America (GSA) Bulletin., Vol. 53, PP. 335-372.	United States, Arizona, Colorado Plateau	Diatreme
DS1940-0085 1944	Hall, G.M., Amick, H.C.	Igneous Rock Regions in the Norris Region	Journal of GEOLOGY, Vol. 52, PP. 424-430.	United States, Appalachia, Tennessee	Related Rocks, Geology
DS1940-0211 1949	Hammond, C.R.	Geologic Map and Structure Sections of East Flank of Laramie Range in the Vicinity of Iron Mountain, Albany and Laramiecounties.	Msc. Thesis, University Wyoming,	United States, Wyoming, Rocky Mountains	Regional Studies
DS1940-0177 1948	Haun, J.D.	Geologic Map of a Portion of the East Flank of the Laramie Range, Platte and Laramie Counties.	Msc. Thesis, University Wyoming,	United States, Wyoming, Rocky Mountains	Regional Studies
DS1940-0007 1940	Henson, P.	Arkansaw Diamond Field	Gems And Gemology, Vol. 3, No. 7, PP. 109-112.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence, Geology
DS1940-0009 1940	Hickok, W.O., Moyer, F.T.	Geology and Mineral Resources of Fayette County, Pennsylvani	Pennsylvania Geological Survey Bulletin., No. C-26, SER. 4, 530P.	United States, Appalachia, Pennsylvania	Geology
DS1940-0152 1947	Holbrook, D.F.	A Brookite Deposit in Hot Spring County, Arkansaw	Arkansaw RESOURCES AND DEVEL. COMM. DIV. GEOLOGY Bulletin., No. 11, 21P.	United States, Gulf Coast, Arkansas, Hot Spring County	Brookite
DS1940-0179 1948	Holbrook, D.F.	Molybdenum in Magnet Cove, Arkansaw	Arkansaw RESOURCES AND DEVEL. COMM. GEOLOGY Bulletin., No. 12, 16P.	United States, Gulf Coast, Arkansas, Hot Spring County	Molybdenum
DS1940-0087 1944	Holden, R.J.	The Punch Jones and other Appalachian Diamonds	Virginia Polytech. Institute Eng. Exp. Ste. Ser., No. 56, 36P.	United States, Alabama, Georgia, Kentucky, Appalachia, North Carolina	Russell County, Hall County, White County, Clayton
DS1940-0183 1948	Jahns, R.H.	The Gem Deposits of Southern California	Eng. Sci. Monthly; Gems And Gemology, Vol. 11, No. 2, PP. 6-9; Vol. 6, PP. 6-9, 28, 30.	United States, California, West Coast	Blank
DS1940-0028 1941	Jewett, J.B.	The Geology of Riley and Geary Counties, Kansas	Kansas Geological Survey Bulletin, No. 39, 164P.	United States, Kansas, Central States	Blank
DS1940-0049 1942	Kidwell, A.L.	The Igneous Geology of St. Genevieve County	Msc. Thesis, Washington University St. Louis, Missouri,	United States, Missouri, Central States, Avon	Alnoite
DS1940-0153 1947	Kidwell, A.L.	Post Devonian Igneous Activity in Southeastern Missouri	Missouri Geological Survey Report Inv., No. 4, 77P.	United States, Missouri, Central States	Alnoite, Diatreme Occurrences
DS1940-0052 1942	Lund, R.J.	Intradepartmental Memorandum to W.l. Bott Concerning Possible Setting Up of a Project on Arkansaw Diamonds.	United States Geological Survey (USGS) miscellaneous MINERALS BRANCH, 3P. UNPUBL.	United States, Gulf Coast, Arkansas, Pennsylvania	Evaluation
DS1940-0123 1946	Maynard, J.E., Ploger, L.W.	An Unrecorded Dike in Syracuse, New York	American Mineralogist., Vol. 31, PP. 200-201.	United States, Appalachia, New York	Related Rocks, Geology
DS1940-0124 1946	Maynard, J.E., Ploger, L.W.	A Study of the Salt Springs Road Peridotite Dike in Syracuse New York.	American Mineralogist., Vol. 31, No. 9-10, PP. 471-485.	United States, Appalachia, New York	Related Rocks, Petrography
DS1940-0030 1941	Miser, H.D., Glass, J.J.	Fluorescent Sodalite and Hackmanite from Magnet Cove, Arkansas.	American MINERALOGIST., Vol. 26, No. 7, PP. 437-445.	United States, Gulf Coast, Arkansas, Hot Spring County	Mineralogy
DS1940-0215 1949	Moody, C.L.	Mesozoic Igneous Rocks of Northern Gulf Coast Plain	American Association of Petroleum Geologists Bulletin., Vol. 33, PP. 1410-1428.	United States, Gulf Coast	Blank
DS1940-0216 1949	Moody, C.L.	Mesozoic Igneous Rocks of Northern Gulf Coastal Plain	American Association of Petroleum Geologists Bulletin., Vol. 33, No. 8, PP. 1410-1428.	United States, Gulf Coast, Arkansas	Regional Geology
DS1940-0185 1948	Murdoch, J., Webb, R.W.	Minerals of California (1948)	California Division of Mines Bulletin., No. 136, PP. 129-132.	United States, California, West Coast	Blank
DS1940-0054 1942	Nelson, H.F.	The Structure of the Cambro-ordovician Rocks Near Rock Elm, wisconsin.	M.a. Thesis, University Wisconsin, Madison., 32P.	United States, Great Lakes, Wisconsin	Regional Geology, Structure
DS1940-0055 1942	Newland, D.H., Vaughan, B.	Guide to the Geology of the Lake George Region	New York State Mus. Handbook, No. 19, 234P.	United States, Appalachia, New York	Regional Geology
DS1940-0187 1948	Poese, W.	Gem Stone Lore	Colorado Springs. Mineral Book Co., 54P.	United States	Kimberlite
DS1940-0217 1949	Reed, D.F.	Investigation of Magnet Cove Rutile Deposit, Hot Spring County, Arkansaw.	United States Bureau of Mines Report INV., No. 4593, 9P.	United States, Gulf Coast, Arkansas, Hot Spring County	Rutile
DS1940-0218 1949	Reed, D.F.	Investigation of Christy Titanium Deposit, Hot Spring County,arkansaw.	United States Bureau of Mines Report INV., No. 4592, 10P.	United States, Gulf Coast, Arkansas, Hot Spring County	Titanium
DS1940-0090 1944	Reid, W.E.	Diamond Finds in North America	Card Index File Washington, D.c.,	United States	Blank
DS1940-0058 1942	Rosenthal, E.	Uncle Sam's Own Diamonds	The Diamond News And South African Jeweller., Vol. 5, No. 9, JUNE PP. 6-7.	United States, Gulf Coast, Arkansas	Diamonds News Item
DS1940-0059 1942	Roush, G.A.	Precious and Semi Precious Stones	The Mineral Industry During 1941, Vol. 50, PP. 463-483.	United States, South Africa, Angola, Zaire, Brazil, Guyana, Gold Coast	Review Of Current Activities For The Year
DS1940-0060 1942	Roush, G.A.	Precious and Semi-precious Stones	The Mineral Industry, Vol. 50, PP. 463-483.	United States, South Africa, West Africa, Gold Coast, Democratic Republic of Congo, Angola	Costs, Production, Accounts
DS1940-0189 1948	Sansom, W.J.	Arkansaw Diamond Mine. #1	The Gemologist., Vol. 17, PP. 58-65.	United States, Gulf Coast, Arkansas, Pennsylvania	Evaluation
DS1940-0075 1943	Schenck, E.	Letter Containing a Statement of Verification Regarding Diamonds Produced at Arkansaw Diamond Mine to War Production Board.	New York, 2P. UNPUBL.	United States, Gulf Coast, Arkansas, Pennsylvania	Production, Politics
DS1940-0129 1946	Sculley, F.J.	Arkansaw Stone or Pure Novaculite	Rocks And Minerals, Vol. 21, No. 7, JULY, P. 424.	United States, Gulf Coast, Arkansas	Blank
DS1940-0101 1945	Shockley, W.G.	Six Years of Collecting in Magnet Cove	Arkansaw MINERAL Bulletin., No. 3, P. 1; PP. 3-8.	United States, Gulf Coast, Arkansas, Hot Spring County	Mineralogy
DS1940-0192 1948	Shockley, W.G.	Mineral Collecting in Magnet Cove, Arkansaw	Rocks And Minerals, Vol. 23, No. 6, PP. 483-495.	United States, Gulf Coast, Arkansas, Hot Spring County	Mineralogy
DS1940-0132 1946	Spencer, R.V.	Exploration of the Magnet Cove Rutile Company Property, Hotspring County, Arkansaw.	United States Bureau of Mines Report INV., No. 3900, 23P.	United States, Gulf Coast, Arkansas, Hot Spring County	Prospecting
DS1940-0220 1949	Thoenen, J.R., Hill, R.S., Howe, E.G., Runke, S.M.	Investigation of the Prairie Creek Diamond Area, Pike County,arkansaw.	United States Bureau of Mines Report INV., No. 4549, 24P.	United States, Gulf Coast, Arkansas, Pennsylvania	Evaluation
DS1940-0061 1942	Vitt, G.N.	Letter to R.j. Thoenen Concerning Proposed Pilot Plant at Arkansas Mine	North American Diamond Corp. (chicago), 2P. UNPUBL.	United States, Gulf Coast, Arkansas, Pennsylvania	Evaluation News Item
DS1940-0077 1943	Vitt, G.N.	Memorandum on Diamond Content and Kinds of Murfreesboro Diamondiferous Peridotite Pipe.	North American Diamond Corp. (chicago), 8P. UNPUBL.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Production, Evaluation
DS1940-0223 1949	Wade, F.B.	Another Rough Diamond Found in Indiana	Gems And Gemology, Vol. 6, No. 8, PP. 249-250.	United States, Indiana, Great Lakes	Diamond Occurrences
DS1940-0104 1945	Wheeler, H.E.	Diamonds in Arkansaw, 1945	Arkansaw MINERAL Bulletin., No. 4, PP. 1-3.	United States, Gulf Coast, Arkansas	Diamond, Geology
DS1940-0136 1946	Wheeler, H.E.	Diamonds in Arkansaw, 1946	Hobbies, Vol. 51, MAY, PP. 118-120.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item On Prospecting
DS1940-0225 1949	Wood, J.B.	America's 35 Acres of Diamonds	National's Business, Vol. 37, MARCH, P. 60.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1950-0002 1950	Alexander	The Arkansaw Diamond Crystal	The Gemologist., Vol. 19, FEBRUARY P. 29; DECEMBER P. 279.	United States, Gulf Coast, Arkansas	Diamond Occurrence
DS1950-0008 1950	Anon.	California Diamond Output	Lapidary Journal, Vol. 5, P. 316.	United States, California, West Coast	Blank
DS1950-0009 1950	Anon.	The Miami Diamond 3.93 Carats Found Near Peru, Indiana	The Gemologist., Vol. 19, JUNE P. 135 AND AUGUST P. 188..	United States, Indiana, Great Lakes	Blank
DS1950-0093 1952	Anon.	Diamonds in California, 1952	Lapidary Journal, Vol. 7, JUNE P. 151.	United States, California, West Coast	Blank
DS1950-0125 1953	Anon.	Great Diamond Hoax	The Mineralogist., Vol. 21, PP. 112-114.	United States, State Line, Colorado, Wyoming	Law
DS1950-0168 1954	Anon.	Trial Exploration Drilling in Arkansaw Diamond Pipe	The Gemologist., Vol. 24, AUGUST P. 147.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item, Prospectting
DS1950-0254 1956	Anon.	15 1/2 Carat Gem Is Named Star of Arkansaw	San Diego Union., FRIDAY, MARCH 9TH.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item, Diamond Notable
DS1950-0255 1956	Anon.	15,000. Diamond -hers for the Finding	San Diego Union., MARCH 5TH., 1/2P.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item, Diamond Notable
DS1950-0256 1956	Anon.	Help Yourself Mine: $ 15, 000 Diamond Hers for Finding	San Diego Union., MAY 5TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item, Diamond Notable
DS1950-0309 1957	Anon.	The Ike Diamond and the Star of Arkansaw	The Gemologist., Vol. 27, JULY P. 132.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamonds Notable
DS1950-0310 1957	Anon.	Diamonds in Arkansaw, 1956	Mineral Resources of The United States For 1956, P. 515.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1950-0370 1958	Anon.	Diamonds of Arkansaw; 1957	Mineral Resources of The United States For 1957, P. 518.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1950-0451 1959	Anon.	Geology of the Cayuga Lake Basin	New York State Geol. Association Guidebook 21st., Annual Meeting, REVISED SECOND EDITION, PT. 3, 30P.	United States, Appalachia, New York	Regional Geology
DS1950-0452 1959	Anon.	Diamond Digging in Arkansaw. a 3.65 Carat Diamond	Gems And Gemology, Vol. 22, SUMMER P. 318; FALL P. 343.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Notable
DS1950-0453 1959	Anon.	Arkansaw Crater Still Holds Diamond Trove	The Evening Star (washington), SEPT. 8TH., P. B5.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1950-0053 1951	Apfel, E.T., Maynard, J.E., Ploger, L.W.	Possible Diatremes in Syracuse, New York	Geological Society of America (GSA) Bulletin., Vol. 62, P. 1421. (abstract.).	United States, Appalachia, New York	Related Rocks
DS1950-0311 1957	Appledorn, C.R.	Volcanic Structures in the Chuska Mountains, Navajo Reservation Arizona- New Mexico.	Geological Society of America (GSA) Bulletin., Vol. 68, PP. 445-467.	United States, Colorado Plateau, Arizona, New Mexico	Tectonics, Related Rocks
DS1950-0011 1950	Ball, S.H.	Mining Operations Start Up in Arkansaw	The Diamond Industry In 1949,	United States, Gulf Coast, Arkansas, Pennsylvania	Mining Methods
DS1950-0017 1950	Broughton, J.G.	Observations of the Intrusion of Rock Salt by Peridotite	Eos, Vol. 31, No. 2, PP. 229-233.	United States, Appalachia, New York	Blank
DS1950-0324 1957	Burgoon, J.R.	Diamond Mining in Arkansaw. #2	Gems And Gemology, Vol. 20, PP. 355-362.	United States, Gulf Coast, Arkansas, Pennsylvania	Mining, Sampling
DS1950-0261 1956	Byrne, F.E., Parish, K.L., Crumpton, C.F.	Igneous Intrusions in Riley County, Kansas	American Association of Petroleum Geologists Bulletin., Vol. 40, PT. 1, PP. 377-380.	United States, Kansas, Central States	Related Rocks
DS1950-0461 1959	Callahan, J.T., Kam, W., Akers, J.P.	The Occurrence of Ground Water in Diatremes of the Hopi Buttes Area, Arizona.	Plateau, Vol. 32, No. 1, PP. 1-12, JULY.	United States, Arizona, Colorado Plateau	Diatreme
DS1950-0202 1955	Carey, B.D.	A Review of the Geology of the Leucite Hills	Wyoming Geol. Association, Guidebook For The 10th. Annual Field C, PP. 112-113.	United States, Wyoming, Rocky Mountains, Leucite Hills	Blank
DS1950-0174 1954	Carlson, D.W., Clark, W.B.	Mines and Mineral Resources of Amador County, California	Calif. Division of Mines, Calif. Journal of Mines Geol., Vol. 50, No. 1, PP. 149-285.	United States, California, West Coast	Blank
DS1950-0058 1951	Chidester, A.H., Billings, M.P., Cady, W.M.	Talc Investigations in Vermont	United States Geological Survey (USGS) Circular, No. 95, 33P.	United States, Appalachia, Vermont	Geology
DS1950-0204 1955	Clegg, K.E.	Metamorphism of Coal by Peridotite Dikes in Southeastern Illinois.	Illinois Geological Survey Report Inv., No. 178, PP. 1-18.	United States, Illinois, Great Lakes	Geology, Alteration
DS1950-0205 1955	Clegg, K.E.	The Metamorphism of Coal by Peridotite Dikes in Southern Illinois.	Illinois Geological Survey Report Inv., No. 178, PP. 1-18.	United States, Illinois, Kentucky, Great Lakes	Blank
DS1950-0264 1956	Clegg, K.E., Bradbury, J.C.	Igneous Intrusive Rocks of Illinois and Their Economic Significance.	Illinois Geological Survey Report Inv., No. 197, 19P.	United States, Illinois, Great Lakes	Related Rocks
DS1950-0019 1950	Cook, K.L.	Quantitative Interpretation of Vertical Magnetic Anomalies Over Veins.	Geophysics, Vol. 15, PP. 667-686.	United States, Kansas, Central States	Kimberlite, Geophysics
DS1950-0208 1955	Cook, K.L.	Magnetic Survey over Serpentine Masses, Riley County, Kansas	American Institute of Mining and Metallurgy. Transactions, PP. 481-488.	United States, Kansas, Central States	Kimberlite, Geophysics, Bala Pipe, Groundmag
DS1950-0059 1951	Cooke, H.R.Jr.	Petrography of Some Valley Dikes	Virginia Journal of Science, Vol. 2, No. 4, PP. 348-349.	United States, Appalachia, Virginia	Petrography, Related Rocks
DS1950-0176 1954	Erd, R.C.	The Mineralogy of Indiana	M.a. Thesis, University Indiana.,	United States, Indiana, Great Lakes	Mineralogy, Mineral Catalogue
DS1950-0024 1950	Foshag, W.F., Jones, G.	The Diamond Industry in 1949	Gems And Gemology, Vol. 6, No. 11, NOVEMBER PP. 341-343.	United States, Canada, Global	Economics, Imports, Production
DS1950-0178 1954	Fryklund, V.C.Jr., Harner, R.S., Kaiser, E.P.	Niobium (columbium) and Titanium at Magnet Cove and Potash Sulfur Springs, Arkansaw.	United States Geological Survey (USGS) Bulletin., No. 1015B, PP. 23-56.	United States, Gulf Coast, Arkansas, Hot Spring County, Garland County	Niobium, Columbium, Titanium
DS1950-0025 1950	Fryklund, V.C.Jr., Holbrook, D.F.	Titanium Ore Deposits of Hot Spring County, Arkansaw	Arkansaw RESOURCES AND DEVEL. COMM. DIV. GEOLOGY Bulletin., No. 16, 173P.	United States, Gulf Coast, Arkansas, Hot Spring County	Titanium
DM1950-0566 1957	Gableman, J.W.	The Origin of Collapsed Plug Pipes	Mines Magazine, Vol. 47, No. 9, PP. 67-72, PP. 79-80.	United States, Colorado Plateau, Rocky Mountains	Diatreme
DS1950-0272 1956	Gair, J.E., Wier, K.L.	Geology of the Kiernan Qaudrangle, Iron County, Michigan	United States Geological Survey (USGS) Bulletin., No. 1044, 88P.	United States, Michigan, Great Lakes	Regional Geology
DS1950-0390 1958	Gordon, M.JR., Tracey, J.I.JR., Ellis, M.W.	Geology of the Arkansaw Bauxite Region	United States Geological Survey (USGS) PROF. PAPER., No. 299, 268P. PP. 60-69 OF INTEREST.	United States, Gulf Coast, Arkansas	Blank
DS1950-0473 1959	Gross, M.L.	The Incredible American Diamond Mine Mystery	True, The Man's Magazine., SEPT. PP. 52-55; PP. 98-102.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond, Mining, History
DS1950-0066 1951	Hagner, A.F.	Anorthosite of the Laramie Range, Albany County	Wyoming Geological Survey Bulletin., No. 43, 15P.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1950-0213 1955	Hambleton, W.W.	Magnetic Anomalies in Wilson and Woodson Counties, Kansas	Kansas Geological Survey Bulletin, No. 114, PT. 3, PP. 114-128.	United States, Kansas, Central States	Kimberlite, Geophysics
DS1950-0214 1955	Hardin, G.C.	Barb Fault System, Crittenden and Livingston Counties, Pt. I,of Fluorspar Deposits in Western Kentucky.	United States Geological Survey (USGS) Bulletin. No., 1012-B, PT. IV, PP. 7-37.	United States, Kentucky, Central States	Blank
DS1950-0215 1955	Hardin, G.C., Trace, R.U.	Geology and Fluorspar Deposits Big Fault System, Crittenden county Kentucky.	United States Geological Survey (USGS) Bulletin., No. 1042-S, PT. III, PP. 699-724.	United States, Kentucky, Central States	Blank
DS1950-0392 1958	Harpending, A.	The Great Diamond Hoax (1958)	University OKLAHOMA PRESS, 211P.	United States	Kimberlite, Kimberley, Janlib, History
DS1950-0067 1951	Hass, W.H.	Age of Arkansaw Novaculite	American Association of Petroleum Geologists Bulletin., Vol. 35, No. 12, PP. 2526-2541.	United States, Gulf Coast, Arkansas	Geochronology
DS1950-0104 1952	Henry, D.J.	Gem Trail Journal	California: Long Beach, Second Edition., 93P.	United States, California, West Coast	Blank
DS1950-0068 1951	Herndon, B.	America's Only Diamond Mine	Collier's., AUG. 25TH., 5P.	United States, Gulf Coast, Arkansas, Pennsylvania	Popular Account Of The History Of The Mine
DS1950-0105 1952	Hobbs, W.H.	An Explorer Scientist's Pilgrimage	Ann Arbor: J.w. Edwards, PP. 29-32.	United States, Great Lakes, Wisconsin	Diamond, History, Autobiography
DS1950-0137 1953	Hobbs, W.H.	The Diamond Fields of the Great Lakes	Precambrian., Vol. 26, No. 3, PP. 16-20.	United States, Wisconsin, Great Lakes, Canada	Diamond Occurrences, Origin
DS1950-0329 1957	Hogeboom, W.L.	The Petrology of Green Street Peridotite Dikes in Syracuse New York.	Msc. Thesis, Syracuse University., 95P.	United States, Appalachia, New York	Petrology, Kimberlite, Mineralogy
DS1950-0069 1951	Holmes, C.R.	Magnetic Fields Associated with Igneous Pipes in the Central Ozarks, Missouri.	Engineering and Mining Journal, Vol. 187, No. 2, PP. 1143-1146.	Missouri, United States, Central States	Kimberlite, Geophysics
DS1950-0107 1952	Holmes, S.W.	Structural Geology and Igneous Rocks of South Central New York and Vicinity.	The Compass of Sigma Gamma Epsilon., Vol. 29, No. 3, PP. 266-272.	United States, Appalachia, New York	Geotectonics
DS1950-0070 1951	Howard, D.L.	Diamond Mines of Arkansaw. #2	Lapidary Journal, Vol. 5, PP. 248-254; P. 256.	United States, Gulf Coast, Arkansas, Pennsylvania	Mining Methods
DS1950-0476 1959	Howe, E.L.	Diamonds: for $1.50, It's Finders-keepers at You Dig 'electromagnetic Gem Mine. Where a Stone Is Never Left Unturned.	New York City, SUNDAY NEWS, JULY 26TH., P. 70.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1950-0279 1956	Hunt, C.B.	Cenozoic Geology of the Colorado Plateau	United States Geological Survey (USGS) PROF. PAPER., No. 279, 99P.	United States, Colorado Plateau	Blank
DS1950-0028 1950	Hutton, C.O.	Studies of Heavy Detrital Minerals	Geological Society of America (GSA) Bulletin., Vol. 61, PP. 635-710.	United States, California, West Coast	Geochemistry
DS1950-0108 1952	Hutton, C.O.	Accessory Mineral Studies of Some California Beach Sands	U.s. Atomic Energy Commission., RMO-981, PP. 41-42. (DIAMONDS IN BEACH SANDS, NORTH CENTRAL	United States, California, West Coast	Blank
DS1950-0072 1951	Jewett, J.M.	Geologic Structure in Kansas	Kansas Geological Survey Bulletin, No. 90, PT. 6, PP. 105-172.	United States, Kansas, Central States	Blank
DS1950-0399 1958	Jillson, W.R.	A Bibliography of Elliott County, Kentucky	Frankfort, Kentucky: Perry Publishing Co., 28P.	United States, Appalachia, Kentucky	Kimberley, Geology
DS1950-0281 1956	Johnson, K.	Arkansaw Diamond Mine. #2	Commercial Appeal, Feb. 26TH. SECT. 5, P. 1.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1950-0219 1955	Johnson, R.W.JR.	Aeromagnetic Observations in Central Western Virginia	Appalachian Geological Society Guidebook, MAY, P. 40.	United States, Appalachia, Virginia	Geophysics
DS1950-0477 1959	Johnson, R.W.JR.	Aeromagnetic Survey of a Mica Peridotite in Union County, Tennessee.	Geological Society of America (GSA) Bulletin., Vol. 70, No. 12, PT. 2, PP. 1745-1765.	United States, Appalachia, Tennessee	Geophysics
DS1950-0220 1955	Johnson, R.W.JR., Milton, C.	Dike Rocks of Central Western Virginia	Geological Society of America (GSA) Bulletin., Vol. 66, PP. 1689-1690.	United States, Appalachia, Virginia, Highland, Georgia	Kimberlite, Geophysics
DS1950-0478 1959	Johnston, R.H.	The Geology of the Northern Leucite Hills, Sweetwater County,wyoming.	Msc. Thesis, University Wyoming, 83P.	United States, Wyoming, Rocky Mountains, Leucite Hills	Lamproite
DS1950-0221 1955	Kadlec, D.W.	Restudy of the Ithaca Dikes	Bsc. Thesis, Cornell University,	United States, Appalachia, New York	Petrology
DS1950-0479 1959	Kellberg, J.M.	Recent Subsurface Investigations in the Wells Creek Structure, Stewart County, Tennessee.	Geological Society of America (GSA), Vol. 2, No. 3, PP. 137-154.	United States, Tennessee, Western Tennessee, Central States	Cryptoexplosion
DS1950-0222 1955	Kelly, V.C.	Monoclines of the Colorado Plateau	Geological Society of America (GSA) Bulletin., Vol. 66, PP. 789-804.	United States, Colorado Plateau	Blank
DS1950-0074 1951	Kidwell, A.L.	Mesozoic Igneous Activity in the Northern Gulf Coastal Plain	Gulf Coast Association Geological Society Transactions, PP. 182-199.	United States, Gulf Coast	Blank
DS1950-0481 1959	Knechtel, N.M.	Stratigraphy of the Little Rocky Mountain and Encircling Foothills, Montana.	United States Geological Survey (USGS) Bulletin., No. 1072-N, PP. 733-752.	United States, Montana, Rocky Mountains	Regional Geology
DS1950-0141 1953	Knight, S.H.	Summary of the Cenozoic History of the Medicine Bow Mountains, Wyoming.	Wyoming Geol. Association Guidebook, 8th. Annual Field Conference, PP. 65-76.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1950-0282 1956	Koenig, J.B.	The Elliott County, Kentucky Intrusion. In: the Petrography of Certain Igneous Dikes of Kentucky.	Kentucky Geological Survey Bulletin. Ser. 9, No. 21, 57P.	United States, Appalachia, Kentucky	Petrography, Related Rocks
DS1950-0283 1956	Koenig, J.W.	Bibliography of the Geology of Missouri	Missouri Bureau of Geology And Mines, 48P.	Missouri, United States, Central States	Alnoite
DS1950-0143 1953	Lee, H.A.	Two Types of Till and Other Glacial Problems in the Edmunston Grand Falls Region, New Brunswick, Quebec, Maine.	Ph.d. Thesis, University Chicago, 113P.	Canada, New Brunswick, United States, Maine, Appalachia	Glaciology
DS1950-0334 1957	Leiper, H.	Arkansaw Diamonds. #1	Journal of GEMOLOGY, Vol. 6, No. 2, PP. 63-71. ALSO: Lapidary Journal, Vol. 11, PP.	United States, Gulf Coast, Arkansas, Pennsylvania	Morphology, Diamond Occurrence
DS1950-0409 1958	Lenoff, J.	Oroville's Mystery Diamonds	The Feather River Territorial, Summer 1958, PP. 4-9.	United States, California, West Coast, Montana	Blank
DS1950-0486 1959	Lisle, T.O.	Doubly Terminated Herkimer Diamonds	Lapidary Journal, Vol. 13, No. 1, PP. 90, 92, 94, 96, 98.	United States, Appalachia, New York	Herkimer Diamonds
DS1950-0182 1954	Malde, H.E.	Serpentine Pipes at Garnet Ridge, Arizona	Science., Vol. 119, P. 618.	United States, Arizona, Colorado Plateau, Rocky Mountains	Diatreme
DS1950-0287 1956	Mccord, R.G.	Fifty Years of Dreaming and Digging in North America's Only diamond Mine.	Arkansaw DEMOCRAT SUNDAY MAGAZINE (LITTLE ROCK), AUGUST 5TH. P. 1; P. 7; P. 9.	United States, Gulf Coast, Arkansas, Pennsylvania	Mining, Sampling, Diamond, Production, History
DS1950-0416 1958	Milton, C., Blade, L.V.	Preliminary Note on Kimzeyite, a New Zirconian Garnet	Science., Vol. 127, No. 3310, P. 1343.	United States, Gulf Coast, Arkansas	Mineralogy
DS1950-0344 1957	Murphy, A.G.	Dig Your Own Diamonds	The American Weekly, Jan. 13TH. 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1950-0346 1957	Newhouse, W.H., Hagner, A.F.	Geologic Map of the Anorthosite Areas Southern Part of the Laramie Range, Wyoming.	United States Geological Survey (USGS) MAP, MF-119.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1950-0113 1952	Nininger, H.H.	Out of the Sky: an Introduction to Meteorites	Dover Publications, New York, 336P.	United States	Blank
DS1950-0291 1956	Nininger, H.H.	Arizona's Meteor Crater: Past-present-future	American Meteorite Museum, Sedona Arizona, World Press Inc., 232P.	United States, Arizona, Colorado Plateau	Kimberlite
DS1950-0149 1953	Olson, E.E.	History of Diamonds in Wisconsin	Gems And Gemology, Vol. 7, No. 9, PP. 284-285.	United States, Great Lakes, Wisconsin	Diamond Occurrences
DS1950-0296 1956	Robinson, A.	How They Cut the Star of Arkansaw	Arkansaw DEMOCRAT (LITTLE ROCK), SUNDAY MAGAZINE., SEPT. 30TH., PP. 1-7, 8, 9.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamonds Notable
DS1950-0425 1958	Rose, H.J.JR., Blade, L.V., Ross, M.	Earthy Monazite at Magnet Cove Arkansaw	American MINERALOGIST., Vol. 43, No. 9-10, PP. 995-997.	United States, Gulf Coast, Arkansas, Hot Spring County	Petrography
DM1950-0544 1955	Rowe, R.B.	Association of Columbium Minerals and Alkaline Rocks	Canadian Mining Journal, Vol. 76, No. 3, MARCH PP. 69-73.	United States, Gulf Coast, Arkansas, Hot Spring County, Russia, Kola, Canada	Magnet Cove, Brookite, Oka
DS1950-0351 1957	Runner, J.J.	Origin of the Upper Cretaceous Shale Inclusions in Volcanic agglomerate Cutting Precambrian and Palaeozoic Rocks in The blcak Hills of South Dakota.	Geological Society of America (GSA) Bulletin., Vol. 68, No. 12, PT. 2, P. 1790.	United States, South Dakota, Central States	Diatreme
DS1950-0043 1950	Schaller, W.T.	Miserite from Arkansaw- a Renaming of Natroxonotlite	American MINERALOGIST., Vol. 35, No. 9-10, PP. 911-921.	United States, Gulf Coast, Arkansas, Garland County	Mineralogy
DS1950-0354 1957	Schlegel, D.M.	Gemstones of the United States	United States Geological Survey (USGS) Bulletin., No. 1042-G, PP. 203-253.	United States, Great Lakes	Diamond Occurrences
DS1950-0153 1953	Shoemaker, E.M.	Collapse Origin of the Diatremes of the Navajo Hopi Reservation.	Geological Society of America (GSA) Bulletin., Vol. 64, P. 1514.	United States, Arizona, Rocky Mountains, Colorado Plateau	Diatreme
DS1950-0300 1956	Shoemaker, E.M.	Diatremes on the Navajo and Hopi Reservations, Arizona	United States Geological Survey (USGS) SPECIAL Publishing, No. TEI-620, PP. 78-85.	United States, Arizona, Colorado Plateau, Rocky Mountains	Diatreme
DS1950-0426 1958	Shoemaker, E.M., Byers, F.M.JR., Roach, C.H.	Diatremes on the Navajo and Hopi Reservation, Arizona. #1	United States Geological Survey (USGS) SPECIAL Publishing, No. TEI-740, PP. 158-168.	United States, Arizona, Rocky Mountains, Colorado Plateau	Diatreme
DS1950-0355 1957	Shoemaker, E.M., Hensley, F.S.JR, Hallagan, R.W.	Diatremes on the Navajo and Hopi Reservation, Arizona. #2	United States Geological Survey (USGS) SPECIAL Publishing, No. TEI-690, PP. 389-398.	United States, Arizona, Colorado Plateau, Rocky Mountains	Diatreme
DS1950-0301 1956	Shoemaker, E.M., Moore, H.J.	Diatremes in the Navajo and Hopi Reservations	United States Geological Survey (USGS) TRACE ELEMENT INVESTIGATIONS Report, No. 640, PP. 197-203.	Colorado Plateau, United States, Rocky Mountains	Blank
DS1950-0154 1953	Shreveport Geological Society	Upper and Lower Cretaceous of Southwestern Arkansaw, Cambrian- Pennsylvanian of the Ouachita Mountains and Magnet Cove.	Guidebook of The 19th. Annual Field Trip, 36P.	United States, Gulf Coast, Arkansas, Hot Spring County, Oklahoma	Guidebook
DS1950-0503 1959	Sinkankas, J.	Gemstones of North America. #3	Princeton: Van Nostrand., 675P.	United States, Great Lakes	Diamond Occurrences
DS1950-0504 1959	Sinkankas, J.	Diamonds in Arkansaw, 1959	In: Gemstones of North America., Vol. 1, PP. 34-38.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence, History, Location
DM1950-0520 1950	Smith, C.H.	Diamonds in the Great Lakes Area- a Geological Enigma, 1960 #2	Canadian Mining Journal, Vol. 71, No. 7, PP. 52-53.	United States, Canada, Great Lakes	Geology, Origin, Diamond Occurrence
DS1950-0045 1950	Smith, C.H.	Let's Hunt for Herkimer Diamonds	New York: Geneva., PRIVATELY Publishing 47P.	United States, Appalachia, New York	Herkimer Diamonds
DS1950-0116 1952	Smith, C.H.	Recent Herkimer Diamond Hunting	Rocks And Minerals, Vol. 27, PP. 272-275.	United States, Appalachia, New York	Herkimer Diamonds
DS1950-0507 1959	Smithson, S.B.	The Geology of the Southeastern Leucite Hills, Sweetwater County, wyoming.	Msc. Thesis, University Wyoming, 92P.	United States, Wyoming, Rocky Mountains, Leucite Hills	Lamproite
DS1950-0084 1951	Sobolev, V.S.	A Survey of the Geology of Diamond Deposits of Africa, Australia, Borneo and North America.	Moskva: Gos. Izdat. Geol. Lit., 125P.	South Africa, Australia, Borneo, United States	Geology, Kimberley
DS1950-0304 1956	St. clair, J.Q.	Report on the Arkansaw Diamond Property	Company Report., 15P. UNPUBL.	United States, Gulf Coast, Arkansas, Pennsylvania	Evaluation, Methods, Mining, Prospectus
DS1950-0047 1950	Taylor, W.K.	Study of the Structural Relationship of the Riley County Intrusions to the Abilene Arch.	Msc. Thesis, Kansas State College, Manhattan, Kansas,	United States, Kansas, Central States	Tectonics, Structure
DS1950-0430 1958	Thurman, W.	Clarence King	New York: Macmillan., 441P.	United States	Kimberlite, Kimberley, Janlib, Biography
DS1950-0433 1958	Trites, A.F.JR., Thurston, R.H.	Geology of the Majuba Hills, Pershing County, Nevada	United States Geological Survey (USGS) Bulletin., No. 1046-I, PP. 183-203.	United States, Nevada, Rocky Mountains	Blank
DS1950-0435 1958	Vantyne, A.M.	Petrology of the Euclid Avenue Peridotite Intrusives	Msc. Thesis, Syracuse University, 144P.	United States, Appalachia, New York	Petrology
DS1950-0513 1959	Wells, J.W.	Structural Geology and Igneous Rocks of the Cayuga Lake Basi	New York State Geol. Association Guidebook 31st., Annual Meeting, PP. 12-15.	United States, Appalachia, New York	Tectonics, General Geology
DS1950-0437 1958	Wilkins, J.H.	Asbury Harpending. the Great Diamond Hoax and Other Stirring Incidents in the Life of Asbury Harpending.	Norman: University Oklahoma Press, 211P.	United States	Kimberley, Hoax, Salting
DS1950-0514 1959	Williams, N.F.	Diamonds; Arkansaw Geological Survey Bulletin, 1959	Arkansaw Geological Survey Bulletin., Vol. 6, PP. 60-61.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence, Geology
DS1950-0308 1956	Wolle, P.C.	A Petrographic and Chemical Study of the Clintonville Dike No. 1.	Term Paper, Geol. Department Syracuse University,	United States, Appalachia, New York	Blank
DS1960-0511 1965	Anders, E.	Diamonds in Meteorites. #3	Scientific American., Vol. 213, JULY-Dec. PP. 26-36.	United States, Arizona, Colorado Plateau	Blank
DS1960-0006 1960	Anon.	Diamond Mining in Arkansaw. #4	Australian Gemologist., PP. 16-17.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1960-0007 1960	Anon.	Diamonds of Arkansaw; 1959	Mineral Resources of The United States For 1959, P. 472.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1960-0116 1961	Anon.	Wisconsin Diamonds #1	Gems And Gemology, Vol. 24, FALL PP. 210-215.	United States, Great Lakes, Wisconsin	History
DS1960-0117 1961	Anon.	Diamonds in Wisconsin. #5	Lapidary Journal, Vol. 15, PP. 18-21.	United States, Great Lakes, Wisconsin	Blank
DS1960-0118 1961	Anon.	Another Diamond Found in Wisconsin	Gems And Gemology, Vol. 24, WINTER PP. 245-246.	United States, Great Lakes, Wisconsin	Blank
DS1960-0212 1962	Anon.	Diamonds in California, 1962	Lapidary Journal, Vol. 16, DECEMBER P. 856.	United States, California, West Coast	Blank
DS1960-0213 1962	Anon.	Diamonds of Arkansaw; 1961	Mineral Resources of The United States For 1961, P. 587.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1960-0418 1964	Anon.	Igneous Rocks- Pilot Butte	United States Geological Survey (USGS) PROF. PAPER., No. 496A, PP. A57-A58.	United States, Wyoming, Leucite Hills	History, Petrography
DS1960-0629 1966	Anon.	A New Theory of the Origin of Diamonds in Ohio, Indiana, Michigan and Wisconsin.	Mineral Resources of The United States For 1965, P. 431.	United States, Ohio, Indiana, Michigan, Wisconsin, Great Lakes	Blank
DS1960-0914 1968	Anon.	A Catalog of the Drift Diamonds of the Great Lakes Area	Gems And Gemology, Vol. 31 SUMMER PP. 297-302. PART 2 FALL PP. 333-334.	United States, Great Lakes	Blank
DS1960-0915 1968	Anon.	Diamonds of Ohio and Wisconsin Brought by Glaciers from James Bay.	Mineral Resources of The United States For 1967, P. 520.	United States, Ohio, Wisconsin, Great Lakes	Blank
DS1960-1064 1969	Anon.	Owners of the Arkansaw Diamond Pipe	Lapidary Journal, Vol. 23, MAY PP. 366-372. Oct. PP. 970-973.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1960-1065 1969	Anon.	An 18.20 Carat Diamond Found in Louisiana- Mounce Diamond	Gems And Gemology, Vol. 32 WINTER P. 13.	United States, Louisiana, Gulf Coast	Diamonds Notable
DS1960-0023 1960	Branch, H.	A 6.45 Carat Diamond from Arkansaw	Gems And Gemology, Vol. 23, SPRING, PP. 7-9.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamonds Notable
DS1960-0128 1961	Brock, M.R., Heyl, A.V.Jr.	Post Cambrian Igneous Rocks of the Central Craton, Western Appalachian Mountains and Gulf Coastal Plain of the United States.	United States Geological Survey (USGS) PROF. PAPER., No. 424-D, PP. D33-35.	United States, Appalachia, New York	Regional Geology
DS1960-0929 1968	Brown, R.P.	A Structural and Petrological Study of the Kimberlite Dike Swarm at Ithaca New York.	Bsc. Thesis, Cornell University, 115P.	United States, Appalachia, New York	Structure, Petrology
DS1960-0802 1967	Buffler, R.T.	The Browns Peak Formation and its Relationship to the Late Tertiary Geologic History of the Elkhead Region, Northwestern Colorado and South Central Wyoming.	Ph.d. Thesis, University California At Berkeley, 175P.	United States, Colorado, Wyoming, Rocky Mountains	Diatreme
DS1960-0805 1967	Carmichael, I.S.E.	The Mineralogy and Petrology of the Volcanic Rocks from The leucite Hills, Wyoming.	Contributions to Mineralogy and Petrology, Vol. 15, PP. 24-66.	United States, Wyoming, Rocky Mountains, Leucite Hills	Blank
DS1960-0431 1964	Carter, N.L., Kennedy, G.C.	Origin of Diamonds in the Canon Diablo and Novo Urei Meteorites.	Journal of Geophysical Research, Vol. 69, PP. 2403-2421.	United States, Arizona, Colorado Plateau	Blank
DS1960-0526 1965	Chadwick, R.A.	Volcanic Vent Complex at Point of Rocks, Gallatin Range, Montana.	Geological Society of America (GSA), Annual MEETING ROCKY MTN. SECTION, P. 28. (abstract.).	United States, Montana, Rocky Mountains	Diatreme
DS1960-0327 1963	Charles, R.J.	Cape May Diamonds	Lapidary Journal, Vol. 17, No. 9, PP. 968-970.	United States, Appalachia, New York	Herkimer Diamonds
DS1960-0225 1962	Chidester, A.H.	Petrology and Geochemistry of Selected Talc Bearing Ultramafic Rocks and Adjacent Country Rocks in North Central Vermont.	United States Geological Survey (USGS) PROF. PAPER., No. 345, 207P.	United States, Appalachia, Vermont	Petrology, Geochemistry, Related Rocks
DS1960-0328 1963	Chronic, J.	Two Early Paleozoic Outliers in the Southern Laramie Range, wyoming.	In: Guidebook To The Geology of The Northern Denver Basin An, No. 14, PP. 23-26.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1960-0133 1961	Chronic, J., Ferris, C.S.Jr.	Early Paleozoic Outlier in Southeastern Wyoming	In: Symposium On Lower And Middle Paleozoic Rocks of Colorad, No. 12, PP. 143-146.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1960-0134 1961	Chronic, J., Ferris, C.S.Jr.	Lower Paleozoic Outlier in Southeastern Wyoming	Geological Society of America (GSA), SPECIAL PAPER No. 68, P. 86, (abstract.).	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1960-0527 1965	Chronic, J., Mccallum, M.E., Ferris, C.S.Jr.	Lower Paleozoic Rocks in Diatremes in Southern Wyoming and Northern Colorado.	Geological Society of America (GSA) SPECIAL PAPER., No. 87, PP. 280-281.	United States, Wyoming, Colorado, State Line, Rocky Mountains	Diatreme
DS1960-1090 1969	Chronic, J., Mccallum, M.E., Ferris, C.S.Jr., Eggler, D.H.	Lower Paleozoic Rocks in Diatremes, Southern Wyoming and Northern Colorado.	Geological Society of America (GSA) Bulletin., Vol. 80, PP. 149-155.	United States, Colorado, Wyoming, Rocky Mountains, State Line	Diatreme
DS1960-0435 1964	Chute, N.E.	Structural Features in the Syracuse Area	New York State Geol. Association Guidebook 36th., Annual Meeting, PP. 74-79.	United States, Appalachia, New York	Tectonics
DS1960-0812 1967	Coleman, R.G.	Low Temperature Reaction Zones and Alpine Ultramafic Rocks Of California, Oregon and Washington.	United States Geological Survey (USGS) Bulletin., No. 1247, 49P.	United States, California, Oregon, Washington, West Coast, Rocky Mountains	Eclogite
DS1960-0330 1963	Coleman, R.G., Lee, D.E.	Glaucophane Bearing Metamorphic Rock Types of the Cazadero Area, California.	Journal of PETROLOGY, Vol. 4, PP. 260-301.	United States, California, West Coast	Blank
DS1960-0530 1965	Collins, H.F.	Summer Safari to America's Diamond Field	The Diamond News And South African Jeweller., JANUARY, PP. 38-39.	United States, Arkansas, Gulf Coast	History, Guidebook Popular Account Of Trip
DS1960-0645 1966	Cooper, D.G., Pert, I.G., Wells, T., Willis, P.M.R.	Report on the Visit to Kentanna Minerals, Kentucky	Selection Trust Exploration Ltd., INTERNAL UNPUBL. Report APRIL 20TH. 15P.	United States, Appalachia, Kentucky	Geology
DS1960-0533 1965	Coy, D.O.	Lineaments of the Ithaca Quadrangle	Bsc. Thesis, Cornell University,	United States, Appalachia, New York	Geotectonics
DS1960-0936 1968	Cummings, D.	Geologic Map of the Zuni Salt Lake Volcanic Crater, Carbon County, New mexico.	United States Geological Survey (USGS) MAP, No. G.I. I-544.	United States, New Mexico, Colorado Plateau	Diatreme
DS1960-1092 1969	Damon, P.E., Giletti, B.J.	The Age of the Basement Rocks of the Colorado Plateau and Adjacent Areas.	New York Academy of Sciences Annual, Vol. 91, PP. 443-453.	United States, Colorado Plateau	Blank
DM1960-1300 1969	Deane, E.	Memories of Arkansaw's Famous Crater of Diamonds	Arkansaw GAZETTE, SUNDAY EDITION., JULY 6TH., 4P.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. History, Diamond
DS1960-0821 1967	Deines, P.	Stable Carbon and Oxygen Isotopes of Carbonatite, Carbonates and Their Interpretation.	Ph.d. Thesis, Pennsylvania State University, 230P.	United States, Appalachia, Pennsylvania	Isotope Chemistry, Kimberlite
DS1960-0941 1968	Deines, P.	The Carbon and Oxygen Isotope Composition of Carbonates From a Mica Peridotite Dike Near Dixonville.	Geochimica Et Cosmochimica Acta, Vol. 32, No. 6, PP. 613-625.	United States, Appalachia, Pennsylvania	Geochronology
DS1960-0942 1968	Deines, P., Gold, D.P., Herzog, L.F.	Variability of C 13 and O 18 in Carbonates from a Mica Peridotite Dike Near Dixonville.	Geological Society of America (GSA) SPECIAL PAPER., No. 101, PP. 51-52.	United States, Appalachia, Pennsylvania	Geochronology, Carbon
DS1960-0652 1966	Denison, R.E.	Basement Rocks in Adjoining Parts of Oklahoma, Kansas Missouri and Arkansaw.	Ph.d. Thesis, University Texas At Austin., 328P.	United States, Gulf Coast, Oklahoma, Kansas, Missouri, Arkansas	Mid-continent, Kimberley
DS1960-0441 1964	Dowell, A.R.	A Magnetic Investigation of Northern Riley County, Kansas	Msc. Thesis, Kansas State University, 84P.	United States, Kansas, Central States	Kimberlite, Geophysics
DS1960-0036 1960	Dreimanis, A.	The Great Lakes Diamonds. Fourth Report: Summary of Investigations and the Plum Creek and Saukville Areas.	Department GEOL. University WESTERN ONTARIO, UNPUBL.	United States, Great Lakes, Wisconsin	Diamond Occurrences
DS1960-0442 1964	Dubois, R.L., Carey, W.W.	Magnetic Investigations of a Ring Dike, Buell Park, Arizona	Geophysics, Vol. 29, No. 4, PP. 553-564.	United States, Arizona, Colorado Plateau	Kimberlite, Geophysics
DS1960-1096 1969	Dyer, R.G., Brookins, D.G.	Mineralogy and Petrography of the Leonardville Kimberlite, Riley County, Kansas.	Geological Society of America (GSA), PT. 2, P. 10, (abstract.).	United States, Kansas, Central States	Blank
DS1960-0540 1965	Eastwood, P.L.	A Spectrochemical Investigation of Some Peridotite Plugs In riley County, Kansas.	Msc. Thesis, Kansas State University,	United States, Kansas, Central States	Geochemistry, Kimberlite
DS1960-0823 1967	Eggler, D.H.	Structure and Petrology of the Virginia Dale Ring Dike Complex Colorado-Wyoming Front Range.	Ph.d. Thesis, University Colorado, 153P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1960-0945 1968	Eggler, D.H.	Virginia Dale Precambrian Ring Dike Complex, Colorado-wyomin	Geological Society of America (GSA) Bulletin., Vol. 79, PP. 1545-1564.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1960-1098 1969	Eggler, D.H., Larson, E., Bradley, W.E.	Granites, Grusses and the Sherman Erosion Surface Southern Laramie Range, Colorado-wyoming.	American Journal of Science, Vol. 267, No. 4, PP. 510-522.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1960-0946 1968	Ekman, A., Parker, I.H., Storms, W.H., Penniman, H.W., Dittmar	Old Mines and Ghost Camps of California	Frontier Book Co. Fort Davis Texas, P. 26; P. 67.	United States, California, West Coast	Blank
DS1960-0338 1963	Erickson, R.L., Blade, L.V.	Geochemistry and Petrology of the Alkalic Igneous Complex Of Magnet Cove, Arkansaw.	United States Geological Survey (USGS) PROF. PAPER., No. 425, 95P.	United States, Gulf Coast, Arkansas, Hot Spring County	Geochemistry, Petrology
DS1960-0542 1965	Ernst, W.G.	Mineral Parageneses in Franciscan Metamorphic Rocks, Panoche Pass, California.	Geological Society of America (GSA) Bulletin., Vol. 76, PP. 879-914.	United States, California, West Coast	Eclogite
DS1960-0824 1967	Essene, E.J., Fyfe, W.S.	Omphacite in California Metamorphic Rocks	Contributions to Mineralogy and Petrology, Vol. 15, PP. 1-23.	United States, California, West Coast	Eclogite
DS1960-0543 1965	Essene, E.J., Fyfe, W.S., Turner, F.J.	Petrogenesis of Franciscan Glaucophane Schists and Associated Metamorphic Rocks, California.	Contributions to Mineralogy and Petrology, Vol. 11, PP. 695-704.	United States, California, West Coast	Eclogite, Kimberlite
DS1960-0448 1964	Ferris, C.S.JR., Kreuger, H.W.	New Radiogenic Ages on Igneous Rocks from the Southern Laramie Range, Wyoming.	Geological Society of America (GSA) Bulletin., Vol. 75, PP. 1051-1054.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1960-0342 1963	Fitzsimmons, J.P.	Precambrian of the Four Corners Area	Four Corners Geological Society Guidebook, PP. 13-20.	United States, Arizona, New Mexico, Colorado, Wyoming, Colorado Plateau	Blank
DS1960-0663 1966	Franks, P.C.	Ozark Precambrian-paleozoic Relations: Discussion of Igneous Rocks Exposed in Eastern Kansas.	American Association of Petroleum Geologists, Vol. 50, PP. 1035-1042.	United States, Kansas, Central States, Wilson	Blank
DS1960-1104 1969	Fullagar, P.D., Bottino, M.L.	Tertiary Felsic Intrusions in the Valley and Ridge Province, Virginia.	Geological Society of America (GSA) Bulletin., Vol. 80, No. 9, PP. 1853-1858.	United States, Appalachia, Virginia	Geology
DS1960-1107 1969	Ganster, M., Stearns, P.G.	Configuration and Source of Anomalous Magnetic Field Near Gordonsville in Smith County, Tennessee.	Tennessee Academy of Science Journal, Vol. 44, No. 2, P. 49, (abstract.).	United States, Tennessee, Central States	Blank
DS1960-1108 1969	Gavasci, A.T., Helmstaedt, H.	A Pyroxene Rich Garnet Peridotite Inclusion in an Ultramafic Breccia Dike at Moses Rock, Southeastern Utah.	Journal of Geophysical Research, Vol. 74, PP. 6691-6695.	United States, Utah, Colorado Plateau	Blank
DS1960-0666 1966	Gittins, J.	Summaries and Bibliographies of Carbonatite Complexes	Interscience Publishing, PP. 417-540.	United States, Gulf Coast, Arkansas, Rocky Mountains, Montana, Colorado	Bibliography
DS1960-0952 1968	Gold, D.P.	Natural and Synthetic Diamonds and the North American Outloo	Earth Min. Sci. Penn. State University, Vol. 37, No. 5, PP. 37-43.	United States, Great Lakes	Natural Diamond
DS1960-0671 1966	Goldstein, N.E., Ward, S.H.	The Separation of Remanent from Induced Magnetism in Situ	Geophysics, Vol. 31, No. 4, PP. 779-796.	United States, Rocky Mountains, West Coast, Nevada	Kimberlite, Geophysics, Desert Eagle, Sage, Jackrabbit
DS1960-1116 1969	Gregory, G.P.	Geochemical Dispersion Patterns Related to Kimberlite Intrusives in North America.	Ph.d. Thesis, University of London, Royal School of Mines, 327P.	United States, Gulf Coast, Arkansas	Geochemistry
DS1960-1117 1969	Gregory, G.P., Tooms, J.S.	Geochemical Prospecting for Kimberlites	Col. Sch. Mines Quarterly, Vol. 64, No. 1, JANUARY PP. 265-304.	United States, Gulf Coast, Arkansas	Geochemistry, Evaluation, Prairie Creek, Mineral Chemistry, Soil
DM1960-1282 1968	Gunn, C.B.	Relevance of the Great Lakes Discoveries to Canadian Diamond Prospecting.	Canadian Mining Journal, Vol. 89, No. 7, PP. 39-42.	United States, Great Lakes, Canada, Ontario	Prospecting, Origin
DS1960-0833 1967	Gunn, C.B.	Provenance of Diamonds in the Glacial Drift of the Great Lakes Region, North America.	London: Msc. Thesis, University Western Ontario, 132P.	United States, Great Lakes, Canada, Ontario	Geomorphology, Diamond Occurrences
DS1960-0834 1967	Gunn, C.B.	The Origin of Diamonds in Drift of the North Central Unitedstates: a Discussion.	Journal of GEOLOGY, Vol. 75, No. 2, PP. 232-233.	United States, Great Lakes, Canada, Ontario, Wisconsin, Michigan	Origin
DS1960-0956 1968	Gunn, C.B.	A Descriptive Catalog of the Drift Diamonds of the Great Lakes Region, North America.	Gems And Gemology, SUMMER PP. 297-302.; FALL PP. 333-345.	United States, Great Lakes, Canada, Ontario	Diamonds Notable, Occurrences
DS1960-0836 1967	Halverson, B.	Diamonds for Free - Maybe	Enterprise Records, Chico, California., SEPTEMBER 2.	United States, California, West Coast	Kimberlite
DS1960-0055 1960	Hartwell, J.W.	Gem Stones; United States Bureau of Mines, 1960	United States Bureau of Mines MINERAL FACTS AND PROBLEMS, Bulletin. No. 585., PP. B63-B64.	United States, Great Lakes, Illinois	Diamond Occurrences
DS1960-0151 1961	Hartwell, J.W., Brett, B.A.	Gem Stones; Minerals Yearbook: Metals and Minerals, 1961	Minerals Yearbook: Metals And Minerals, Vol. 1, PP. 585-596.	United States, Canada, Gulf Coast, Arkansas, Pennsylvania, Russia, Brazil, Tanzania	Production, Imports, Review
DS1960-0248 1962	Hartwell, J.W., Brett, B.A.	Gems Stones	United States Bureau of Mines MINERALS YEARBOOK FOR 1962, Vol. 1, P. 586.	United States, Great Lakes	Diamond Occurrence
DS1960-0839 1967	Hearn, B.C.JR.	Montana Diatremes With Kimberlitic Affinities	Eos, Vol. 48, No. 1, P. 256, (abstract.).	United States, Montana, Rocky Mountains	Diatreme
DS1960-0961 1968	Hearn, B.C.JR.	Diatremes with Kimberlitic Affinities in North Central Montana.	Science., Vol. 159, No. 3815, PP. 622-625.	United States, Montana, Rocky Mountains	Kimberlite
DS1960-0679 1966	Heinrich, .W., Dahlem, D.H.	Carbonatites and Alkalic Rocks of the Arkansaw River Area, Fremont county, Colorado.	Mineralogical Society of India 4TH. VOLUME., PP. 37-44.	United States, Colorado Plateau	Blank
DS1960-0680 1966	Heinrich, E.W.	The Geology of Carbonatites	Chicago: Rand Mcnally, 555P. INDIA PP. 553-570.	United States, Canada, South Africa, Russia, Greenland, India, Brazil, Europe	Blank
DS1960-0840 1967	Heinrich, E.W., Dahlem, D.H.	Carbonatites and Alkalic Rocks of the Arkansaw River Area, Fremont county, Colorado. Part 4. the Pinon Peak Breccia Pipes.	American Mineralogist., Vol. 52, No. 5-6, PP. 817-831.	United States, Colorado, Rocky Mountains	Diatreme
DS1960-1127 1969	Helmstaedt, H.	Petrofabrics of Mafic and Ultramafic Inclusions from Kimberlite Pipes in Southeastern Utah and Northeastern Arizona.	Eos, Vol. 50, No. 4, P. 345, (abstract.).	United States, Arizona, Utah, Colorado Plateau	Blank
DS1960-0558 1965	Heyl, A.V., Brock, M., Jolly, J.L., Wells, G.E.	Regional Structure of Southeast Missouri and Illinois- Kentucky Mineral District.	United States Geological Survey (USGS) Bulletin., No. 1202-B, 20P.	United States, Kentucky, Missouri, Illinois, Central States	Blank
DS1960-0153 1961	Heyl, A.V., Brock, M.R.	Structural Framework of the Illinois Kentucky Mining District and its Relation to Mineral Deposits.	United States Geological Survey (USGS) PROF. PAPER., No. 424-D, PP. D3-D6.	United States, Kentucky, Appalachia	Tectonics, Structure, Regional Geology
DS1960-0962 1968	Hills, F.A., Gast, P.W., Houston, R.S., Swainbank, I.G.	Precambrian Geochronology of the Medicine Bow Mountains, Southeastern Wyoming #1	Geological Society of America (GSA) Bulletin., Vol. 79, PP. 1757-1783.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1960-0963 1968	Hills, F.A., Gast, P.W., Houston, R.S., Swainbank, I.G.	Precambrian Geochronology of the Medicine Bow Mountains, Southeastern Wyoming #2	Wyoming Geological Survey Memoir., No. 1.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1960-0250 1962	Holbrook, D.F.	The Geology of Magnet Cove	Mississippi Geological Society, PP. 10-11.	United States, Gulf Coast, Arkansas, Hot Spring County	Geology
DS1960-0841 1967	Hollingsworth, J.S.	Geology of the Wilson Springs Vanadium Deposits	Arkansaw GEOL. COMM. CENTRAL Arkansaw ECONOMIC GEOLOGY AND P, PP. 22-24.	United States, Gulf Coast, Arkansas, Garland County	Vanadium, Potash Sulfur Springs Complex
DS1960-0251 1962	Horn, J.	Hidden Treasure, How and Where to Find It	Arco Publishing Co., 234P.	United States	Blank
DS1960-0965 1968	Houpt, J.R.	Field and Laboratory Investigations of the Elliott County, kentucky Peridotite Dikes.	Msc. Thesis, Miami University, Oxford, Ohio., 62P.	United States, Appalachia, Kentucky	Geology, Geochemistry, Kimberlite, Mineralogy, Petrology
DS1960-0966 1968	Houston, R.S., et al.	A Regional Study of Rocks of Precambrian Age in That Part Of	Wyoming Geological Survey Memoir., No. 1, 167P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Tectonics
DS1960-0154 1961	Houston, R.S., Mccallum, M.E.	Mullen Creek-nash Fork Shear Zone, Medicine Bow Mountains, Southeastern Wyoming.	Geological Society of America (GSA) SPECIAL PAPER., No. 68, P. 91, (abstract.).	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1960-0461 1964	Irwin, W.P.	Late Mezozoic Orogenies in the Ultramafic Belts of Northwestern California and Southwestern Oregon.	United States Geological Survey (USGS) PROF. PAPER., No. 501 C, PP. C1-C9.	United States, California, Oregon, West Coast, Rocky Mountains	Blank
DS1960-0059 1960	Jahns, R.H.	Precious Stones (1960)	Industrial Minerals And Rocks, American Institute of Mining, PP. 383-441.	United States, Canada	Blank
DS1960-0561 1965	Jillson, W.R.	Geology of the Glencairn and Pine Ridge Faults in Western Wolf County, Kentucky.	Selection Trust Exploration Ltd., International UNPUBL. Report, APRIL 20TH. 15P.	United States, Appalachia, Kentucky	Geology, Tectonics
DS1960-0562 1965	Jillson, W.R.	Discovery of Mid-paleozoic Faulting in Eastern-central Kentucky.	Frankfort, Kentucky: Roberts Printing Co., 13P.	United States, Appalachia, Kentucky	Geology, Tectonics, Regional
DS1960-0563 1965	Jillson, W.R.	Biangular Faulting in the Outer Blue grass Region of Northeastern Kentucky.	Frankfort, Kentucky: Roberts Printing Co., 26P.	United States, Appalachia, Kentucky	Tectonics, Geology
DS1960-0159 1961	Johnson, R.W.JR.	Dimensions and Attitude of the Peridotite in Clark Hollow Union County, Tennessee: an Aeromagnetic Study.	Southeastern Geology, Vol. 2, No. 3, PP. 137-154.	United States, Tennessee, Central States	Kimberlite, Geophysics, Airmag
DS1960-0359 1963	Keller, F.JR., Henderson, J.R., et al.	Aeromagnetic Map of the Magnet Cove Area, Hot Spring County, Arkansaw.	United States Geological Survey (USGS) MAP, No. GP 409, 1: 24, 000.	United States, Gulf Coast, Arkansas, Hot Spring County	Geophysics
DS1960-0256 1962	Kiilsgaard, T.H., Heyl, A.V., Brock, M.R.	The Crooked Creek Disturbance Southeast Missouri	United States Geological Survey (USGS) PROF. PAPER., No. 450-E, PP. E14-E19.	Missouri, United States, Central States	Cryptoexplosion
DS1960-0360 1963	King, J.S.	Petrology and Structure of the Precambrian and Post Mississippian Rocks of the Northeastern Medicine Bow Mountains, Carbon County, Wyoming.	Ph.d. Thesis, University Wyoming, 124P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DS1960-0565 1965	Kreiger, M.H.	Geology of the Prescott and Paulden Quadrangles, Arizona	United States Geological Survey (USGS) PROF. PAPER., No. 467, 127P.	United States, Arizona, Colorado Plateau	Blank
DS1960-1149 1969	Labuz, A.L.	The Herkimer Diamond Grounds Former Schrader Property and Related Properties.	Rocks And Minerals, Vol. 44, PP. 243-250.	United States, Appalachia, New York	Herkimer Diamonds
DS1960-0261 1962	Lawrence, J.C.	Wasatch and Green River Formations of the Cumberland Gap Area, Lincoln and Uinta Counties Wyoming.	M.a. Thesis, University Wyoming At Laramie., 72P.	United States, Wyoming, Utah	Regionlal Studies
DS1960-0695 1966	Leiper, H.	America's Only Diamond Bearing Peridotite Pipe	Lapidary Journal, Vol. 20, PP. 714-733.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1960-0475 1964	Lovering, J.F., Richards, J.R.	K-ar Age Study of Possible Lower Crust and Upper Mantle Inclusions in Deep Seated Intrusions.	Journal of Geophysical Research, Vol. 69, PP. 4895-4901.	Australia, New South Wales, South Africa, United States, Hawaii	Kimberlite, Delegate, Orange Free State, Roberts Victor
DS1960-0982 1968	Lovering, J.F., Widdowson, J.R.	The Petrological Environment of Magnesium Ilmenites	Earth and Planetary Science Letters, Vol. 4, PP. 310-314.	Russia, South Africa, Sierra Leone, West Africa, United States, Kentucky	Genesis, Kimberlite
DS1960-0271 1962	Mack, S.	Post Stormking Dikes in the Hudson Highlands of New York	New York Academy of Sciences ANNALS, Vol. 93, PP. 923-933.	United States, Appalachia, New York	Related Rocks, Petrography
DS1960-0374 1963	Malde, H.E., Thaden, R.E.	Serpentine at Garnet Ridge	In: Geology And Uranium-vanadium Deposits of The Monument Va, No. 1103, PP. 54-61.	United States, Arizona, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-0984 1968	Mannard, G.W.	The Surface Expression of Kimberlite Pipes	Geological Association of Canada (GAC) Proceedings, Vol. 19, PP. 15-21.	United States, Great Lakes, Canada	Kimberlite, Genesis, Geology, Geomorphology
DS1960-1162 1969	Manoyian, Z.	The Gemsters	Opa-locka Fla: Todd-z Corp., 144P.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1960-0069 1960	Marlowe, J.I.	Diatremes and a Ring Intrusion on the San Carlos Indian Reservation.	Arizona Geological Society Digest., Vol. 3, PP. 150-154.	United States, Arizona, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-0071 1960	Matson, R.E.	Petrography and Petrology of the Smoky Buttes Intrusives Parfield County, Montana.	Msc. Thesis, Montana State University,	United States, Montana, Rocky Mountains	Lamproite
DS1960-0576 1965	Matton, R.B.	Upheaval Dome, San Juan County, Utah	American Association of Petroleum Geologists Bulletin., Vol. 49, No. 3, P. 349. (abstract.).	United States, Utah, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-0478 1964	Mccallum, M.E.	Petrology and Structure of the Precambrian and Post Mississippian Rocks of the East Central Portion of Medicine Bow Mountains.	Ph.d. Thesis, University Wyoming, 166P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DS1960-0989 1968	Mccallum, M.E., Eggler, D.H.	Preliminary Report on Mineralogy of Kimberlite Diatremes In the Northern Front Range, Colorado-wyoming.	Geological Society of America (GSA) SPECIAL PAPER., No. 121, P. 192, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1960-0708 1966	Mcgetchin, T.R.	Geology of the Moses Rock Intrusion, San Juan County, Utah	United States Geological Survey (USGS) OPEN FILE, ASTROGEOLOGIC STUDIES Annual PROG. Report J, PP. 231-253.	United States, Utah, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-1167 1969	Mcgetchin, T.R..	Source and Emplacement of Kimberlite at Moses Rock Dike, Uta	I A V C E I Symposium Oxford., P. 41. (abstract.). ALSO: EOS, Vol. 50, P. 345.	United States, Utah, Colorado Plateau	Blank
DS1960-0578 1965	Megrue, G.H., Kerr, P.F.	Alteration of Sandstone Pipes Laguna New Mexico	Geological Society of America (GSA) Bulletin., Vol. 76, PP. 1347-1360.	United States, New Mexico, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-0712 1966	Millar, H.W.	Millar's Crater of Diamonds	Brochure., 6P.	United States, Gulf Coast, Arkansas, Pennsylvania	History, Production
DS1960-0865 1967	Morris, H.T., Kopf, R.W.	Breccia Pipes in the West Tintic and Sheeprock Mountains, Utah.	United States Geological Survey (USGS) PROF. PAPER., No. 575C, PP. C66-C71.	United States, Utah, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-1181 1969	Mounce, W.	A Large Diamond Found in Louisiana	Gems And Gemology, Vol. 13, P. 134.	United States, Gulf Coast, Louisiana	Diamond Occurrence
DS1960-1186 1969	Nicholls, J., Carmichael, I.S.E.	A Commentary on the Absarokite-shoshonite Banakite Series Of Wyoming, United States (us)	Schweizerische Mineralogische Und Petrographische Mittelunge, Vol. 49, No. 1, PP. 47-64.	United States, Wyoming, Colorado Plateau	Mineral Chemistry, Related Rocks, Genesis
DS1960-0723 1966	O'hara, M.J.	Eclogite, Peridotite and Pyrope from the Navajo Counties, Arizona and new Mexico.	American MINERALOGIST., Vol. 51, PP. 336-352.	United States, Arizona, New Mexico, Colorado Plateau	Blank
DS1960-0585 1965	O'sullivan, R.B.	Geology of the Cedar Mesa Boundary Butte Area, San Juan County, Utah.	United States Geological Survey (USGS) Bulletin., No. 1186, 128P.	United States, Utah, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-0870 1967	Owens, D.R.	Bedrock Geology of the 'v' Intrusive, Garland County, Arkansas.	Msc. Thesis, University Arkansaw, 96P.	United States, Gulf Coast, Arkansas, Garland County	Petrology, Structure
DS1960-1008 1968	Peterman, Z.E., Hedge, C.E., Braddock, W.A.	Age of Precambrian Events in the Northeast Front Range, Colorado.	Journal of Geophysical Research, Vol. 73, PP. 2277-2296.	United States, Colorado, State Line, Rocky Mountains	Diatreme
DS1960-0386 1963	Petkof, B.	Gem Stones; Minerals Yearbook: Metals and Minerals, 1963	Minerals Yearbook: Metals And Minerals, 1963, Vol. 1, PP. 537-548.	United States, Gulf Coast, Arkansas, Pennsylvania, Brazil, Venezuela, Belgium	Industrial, Review, Imports, Production
DS1960-0487 1964	Petkof, B.	Gem Stones; Minerals Yearbook: Metals and Minerals,1964	Minerals Yearbook: Metals And Minerals,1964, Vol. 1, PP. 537-548.	United States, Gulf Coast, Arkansas, South Africa, South America, Venezuela	Current Review Of Years Activities
DS1960-0589 1965	Pollack, D.W.	The Potash Sulfur Springs Alkali Complex, Garland County, Arkansas	Mining Engineering, Vol. 17, PP. 45-46. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Blank
DS1960-0728 1966	Popoff, C.C.	Computing reserves of mineral deposits : principles and conventionalmethods.out of print -xerox available	Usbm Information Circular, No. 8283, 113p	United States	Reserves, Usa
DS1960-0083 1960	Pough, F.H.	Do It Yourself Diamond Mining	Jewellers Circular Keystone., Vol. 130, No. 5, Feb., PP. 90-92; P. 116.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1960-0729 1966	Powell, J.L., Hurley, P.M., Fairbairn, H.W.	The Strontium Isotopic Composition and Origin of Carbonatite	Interscience Publishing, PP. 365-378.	United States, Gulf Coast, Arkansas, Hot Spring County, Canada, Quebec	Geochronology, Spitzkop, Oka, Magnet Cove
DS1960-0291 1962	Ramarathnam, S.	Geology and Petrology of the Southern Portion of the Laramie Anorthosite Massif, Albany County, Wyoming.	Golden: Ph.d. Thesis, Colorado School Mines, 131P.	United States, Wyoming, Rocky Mountains	Regional Studies
DS1960-0389 1963	Ray, P.	Geophysical Study of the Ferris Outlier	Rocky Mountain Association Geol. Field Conference 14th. Symposium, PP. 26-30.	United States, State Line, Wyoming, Rocky Mountains	Kimberlite, Geophysics
DS1960-0490 1964	Robinson, M., Bergendahl.	Missouri Buttes Described	United States Geological Survey (USGS) PROF. PAPER., No. 404, P. 107; P. 113.	United States, South Dakota, Central States	Diatreme
DS1960-0737 1966	Roddy, D.J.	The Paleozoic Crater at Flynn Creek, Tennessee	Ph.d. Thesis,	United States, Western Tennessee, Central States	Cryptoexplosion
DS1960-1017 1968	Roen, J.B.	A Transcurrent Structure in Fayette and Green Counties, Pennsylvania.	United States Geological Survey (USGS) PROF. PAPER., No. 600C, PP. 149-152.	United States, Appalachia, Pennsylvania	Tectonics, Geology
DS1960-0740 1966	Ross, M.	Diamonds are Discovered in Arkansaw- But there Were a Number of Earlier Finds.	The Arkansaw Gazette., OCTOBER 30TH.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Diamond Occurrence, History
DS1960-0188 1961	Ruehr, B.B.	Geology of the Devil's Gate Area, Albany and Carbon Counties,wyoming.	Msc. Thesis, University Wyoming, 48P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DM1960-1267 1965	Russell, J.	Pleasant Dream Pays Off	The Tulsa Tribune., AUGUST 25TH.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond, Property, Investment News Item
DS1960-1208 1969	Scharon, L., Hsu, I-CHI.	Paleomagnetic Investigations of Some Arkansaw Alkalic Igneous Rocks.	Journal of Geophysical Research, Vol. 74, No. 10, PP. 2774-2779.	United States, Gulf Coast, Arkansas, Hot Spring County	Absolute Age
DS1960-0498 1964	Siems, P.L.	Geology and Mineral Deposits of the Silver Cliff Volcanic Caldera, custer County, Colorado.	Geological Society of America (GSA), Annual MEETING ROCKY MTN. SECTION, P. 39.	United States, Colorado, Rocky Mountains	Diatreme
DM1960-1235 1960	Smith, C.H.	Diamonds in the Great Lakes Area- a Geological Enigma, 1960 #1	Canadian Mining Journal, Vol. 81, No. 7, PP. 51-52.	United States, Canada, Great Lakes	Diamond Occurrence, Genesis
DS1960-0600 1965	Snyder, F.G., Gerdeman, P.E.	Explosive Igneous Activity Along an Illinois Missouri Kansas Axis.	American Journal of Science, Vol. 263, PP. 465-493.	Appalachia, United States, Illinois, Missouri, Kansas, Central States	Mid-continent, Structure, Tectonics
DS1960-0750 1966	Stone, C.G.	General Geology of the Eastern Frontal Ouachita Mountains And Southeastern Arkansaw Valley, Arkansaw.	Kansas Geological Society Guidebook, Wichita Kansas, PP. 195-221.	United States, Oklahoma, Arkansas	Structure
DS1960-0403 1963	Stone, C.G., Sterling, P.J.	Relationship of Igneous Activity to Mineral Deposits in Arkansas #1	Arkansaw Academy of Science Proceedings, Vol. 17, P. 54. (abstract.).	United States, Gulf Coast, Arkansas	Origin
DS1960-0501 1964	Stone, C.G., Sterling, P.J.	Relationship of Igneous Activity to Mineral Deposits in Arkansas #2	Arkansaw GEOL. COM. Report,	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1960-0613 1965	Tremblay, M.	Diamond Deposits of the World	The Canadian Institute of Mining, Metallurgy and Petroleum (CIM) PREPRINT., UNPUBL. 15P.	United States, Global, Great Lakes, Canada, Ontario	Diamond Occurrences
DS1960-1046 1968	Ulrich, G.E.	Maar Deposits in the San Francisco Volcanic Field, Arizona	Geological Society of America (GSA), PACIFIC COAST SECTION MEETING, P. 126.	United States, Arizona, Colorado Plateau, Rocky Mountains	Diatreme
DS1960-0889 1967	Upton, B.G.L.	Alkaline Pyroxenites	John Wiley And Sons. Publishing, PP. 281-288.	United States, Gulf Coast, Arkansas, Hot Spring County	Magnet Cove, Petrology
DS1960-1047 1968	Valdovinos, D.L.	Petrography of Some Lamprophyres of the Eastern Ouachita Mountains of Arkansaw.	Msc. Thesis, University Arkansaw, 146P.	United States, Oklahoma, Arkansas	Petrology
DS1960-0196 1961	Vierthaler, A.A.	Wisconsin Diamonds #2	Gems And Gemology, Vol. 10, No. 7, PP. 210-215.	United States, Great Lakes, Wisconsin	Diamond Occurrence
DS1960-0197 1961	Vierthaler, A.A.	There Are Diamonds in Wisconsin	Lapidary Journal, Vol. 15, No. 1, P. 18; P. 20; P. 22; P. 26.	United States, Great Lakes, Wisconsin	Diamond Occurrence, History, Crystallography, Morphology
DS1960-0895 1967	Watson, K.D.	Kimberlites of Eastern North America (1967)	In: Ultramafic And Related Rocks, Wyllie, P.j., PP. 312-323.	United States, Great Lakes, Appalachia	Kimberlite, Geology
DS1960-0762 1966	White, R.W.	Ultramafic Inclusions in Basaltic Rocks from Hawaii	Contributions to Mineralogy and Petrology, Vol. 12, PP. 245-314.	United States, Hawaii	Blank
DS1960-0897 1967	Woodard, B.	Diamonds in the Salt	Boulder, Col.: Pruett Press, 200P.	United States	Kimberlite, Kimberley, Janlib, History
DS1960-0899 1967	Zartman, R.E., Brock, M.E., Heyl, A.V., Thomas, H.H.	Potassium-argon and Rubidium-strontium Ages of Some Alkaline Intrusive rocks from Central and Eastern United States.	American Journal of Science, VOL 265, PP. 838-870.	United States, Appalachia, New York, Central States	Geology, Related Rocks, Kimberlite, Geochronology
DS1970-0219 1971	Akers, J.P., Shorty, J.C., Stevens, P.R.	Hydrogeology of the Cenozoic Igneous Rocks, Navajo and Hopiindian Reservations, Arizona, New Mexico and Utah.	United States Geological Survey (USGS) PROF. PAPER., No. 521-D, 17P.	United States, Colorado Plateau, Rocky Mountains, Arizona, Utah, New Mexico	Diatreme
DS1970-0461 1972	Alt, D., Hyndman, D.W., Ferguson, J.A., Lamorre, B.	Pleistocene Maar Craters Near Drummond, Montana	Northwest Geology, Vol. 1, PP. 33-37.	United States, Montana, Rocky Mountains	Diatreme
DS1970-0017 1970	Anon.	Arkansaw DIAMOND Mines UNDER ONE OWNER and OPEN to the PUBLIC FREE.	Mineral Resources of The United States For 1969, P. 515.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1970-0018 1970	Anon.	A Diamond Found in Louisiana	Lapidary Journal, Vol. 24, Nov. P. 1122.	United States, Louisiana, Gulf Coast	Blank
DS1970-0232 1971	Anon.	An 18.20 Carat Diamond Found in Louisiana. #1	Mineral Resources of The United States For 1970, P. 529.	United States, Louisiana, Gulf Coast	Diamond Occurrence
DS1970-0233 1971	Anon.	An 18.20 Carat Diamond Found in Louisiana. #2	Australian Gemologist., FALL P. 29.	United States, Lousiana, Gulf Coast	Blank
DS1970-0624 1973	Anon.	State of Arkansaw Buys the Arkansaw Diamond Pipes for Park	Mineral Resources of The United States For 1972, P. 559.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1970-0869 1974	Anon.	Two Gem Diamonds Found in Arkansaw	Mineral Resources of The United States For 1973, P. 548.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1970-0241 1971	Best, M.G., Wilshire, H.G.	Ultramafic Inclusions in Basaltic and Kimberlitic Rocks	Geotimes, APRIL, PP. 20-21.	United States	Blank
DS1970-0031 1970	Boyd, F.R.	Garnet Peridotites and the System Casi02 Mgsi03 Al203	Mineralogical Soc. American, SPECIAL PAPER No. 3, PP. 63-75.	South Africa, United States, Russia	Microprobe, Analyses
DS1970-0886 1974	Brookins, D.G., Meyer, H.O.A.	Crustal and Upper Mantle Stratigraphy Beneath Eastern Kansas	Geophysical Research Letters, Vol. 1, No. 6, OCTOBER, PP. 269-272.	United States, Kansas, Central States	Kimberlite, Genesis
DS1970-0488 1972	Chelikowsky, J.R.	Structural Geology of the Manhattan, Kansas Area	Kansas Geological Survey Bulletin, No. 240, PT. 4, 13P.; ALSO: Geological Society of America (GSA), Vol. 4, No.	United States, Kansas, Central States	Blank
DS1970-0490 1972	Chronic, J.	Middle Paleozoic Kimberlitic Diatremes in Colorado and Wyoming.	Colorado Sch. Mines Quarterly, Vol. 67, No. 4, PP. 63-75.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Kimberlite, State Line, Rocky Mountains
DS1970-0050 1970	Clark, W.B.	Gold Districts of California	Calif. Division of Mines And Geol. Bulletin., No. 193, PP. 36-37; P. 49; P.50.	United States, California, West Coast	Diamonds
DS1970-0656 1973	Curry, W.H.III.	Late Cretaceous and Early Tertiary Rocks, Southwestern Wyoming.	Wyoming Geol. Association Guidebook, Vol. 25, PP. 79-86.	United States, Wyoming, Rocky Mountains, Leucite Hills	Blank
DS1970-0067 1970	Dejournett, J.D.	Paleomagnetism of Peridotite Dikes Near Ithaca, New York	Bsc. Thesis, Cornell University, 59P.	United States, Appalachia, New York	Geophysics
DS1970-0278 1971	Dennison, J.M., Johnson, R.W.Jr.	Tertiary Intrusions and Associated Phenomena Near the Thirty Eighth Parallel Fracture Zone in Virginia and West Virginia.	Geological Society of America (GSA) Bulletin., Vol. 82, PP. 501-508.	United States, Appalachia, Virginia	Related Rocks, Geology
DS1970-0501 1972	Desautels, P.E.	Gems in the Smithsonian. #1	Washington: The Smithsonian Institution Press, 63P.	Global, United States	Kimberlite, Kimberley, Janlib, Gemology
DS1970-0502 1972	Desautels, P.E.	Gems in the Smithsonian. #2	Smithsonian Institution Press, 63P.	United States	Diamonds Notable, Kimberley
DS1970-0506 1972	Dudley, P.P.	Comments on the Distribution and Age of High-grade Blueschists, Associated Eclogites and Amphibolites from the Tiburon Peninsula, California.	Geological Society of America (GSA) Bulletin., Vol. 83, No. 11, PP. 3497-3500.	United States, California, West Coast	Eclogite
DS1970-0070 1970	Dyer, R.G.	Petrology of the Leonardville Kimberlite, Riley County, Kansas.	Msc. Thesis, Kansas State.,	United States, Kansas, Central States	Blank
DS1970-0071 1970	Dyer, R.G., Brookins, D.G.	Petrography and Geochemistry of the Leonardville Kimberlite, Riley County, Kansas.	Kansas Academy of Science Transactions, Vol. 73, PP. 460-480.	United States, Kansas, Central States	Blank
DS1970-0672 1973	Eggler, D.H., Mccallum, M.E.	Ultramafic Nodules from Colorado Wyoming Kimberlite Pipes	Carnegie Institute Yearbook, FOR 1972, PP. 446-449.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Petrography, Mineral Chemistry, Diatreme, Front Range
DS1970-0903 1974	Eggler, D.H., Mccallum, M.E.	Preliminary Upper Mantle Lower Crust Model of the Colorado Wyoming Front range.	Carnegie Institute Yearbook, FOR 1973, PP. 295-300.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1970-0904 1974	Eggler, D.H., Mccallum, M.E.	Colorado Wyoming Kimberlitic Diatremes ,pt. Ii, a View of The Upper Mantle from Nodules.	Geological Society of America (GSA), Vol. 6, No. 5, P. 440, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1970-0075 1970	Ernst, W.G., Seki, Y., et al.	Comparative Study of Low Grade Metamorphism in the California Coast Ranges and the Outer Metamorphic Belt of Japan.	Geological Society A, ER. MEMOIR., No. 124, 270P.	United States, California, West Coast	Blank
DS1970-0076 1970	Essene, E.J., Ware, N.G.	The Low Temperature Xenolithic Origin of Eclogites in Diatremes Northeastern Arizona.	Geological Society of America (GSA), Vol. 2, PP. 547-548, (abstract.).	United States, Arizona, Colorado Plateau	Blank
DS1970-0509 1972	Faul, H.	Century Old Diamond Hoax Reexamined	Geotimes, Vol. 17, PP. 23-25.	United States, California, West Coast	Blank
DS1970-0079 1970	Foster, B.P.	Study of the Kimberlite-alnoite Dikes in Central New York	Msc. Thesis, University Buffalo, 59P.	United States, Appalachia, New York	Petrography, Dike Descriptions, Mineralogy, Geochemistry
DS1970-0511 1972	Foster, B.P., Reitan, P.H.	Kimberlite Dike Emplacement in the Central Finger Lakes Region.	Geological Society of America (GSA), Vol. 4, P. 17. (abstract.).	United States, Kansas, Central States, Wilson	Blank
DS1970-0909 1974	Francis, D.M., Mcgetchin, T.R.	Compositional and Textural Relations in Lherzolite Nodules, nunivak Island Alaska.	Eos, Vol. 55, No. 4, PP. 484-485. (abstract.).	United States, Alaska	Blank
DS1970-0291 1971	Franks, P.C., Bickford, M.E., Wagner, H.C.	Metamorphism of Precambrian Granitic Xenoliths in a Mica Peridotite at Rose Dome, Woodson County, Kansas. Pt. 2 Petrologic and Mineralogic Studies.	Geological Society of America (GSA) Bulletin., Vol. 82, No. 10, PP. 2869-2889.	United States, Kansas, Central States	Blank
DS1970-0690 1973	Gavasci, A.T.	Investigation on Deformation in Amphibole and Amphibole Bearing Diatremes on the Colorado Plateau.	Lamont-doherty Geol. Observ., National Technical Information Service Report, No. 7415, 17P.	United States, Colorado Plateau	Blank
DS1970-0082 1970	George, Ward, Vivienne	Diamonds of Cherokee	Treasure World, Publishing P.o. Drawer L, Conroe Texas, 60P.	United States, California, West Coast	Kimberley, History
DS1970-0691 1973	Ghent, E.D., Coleman, R.G.	Eclogites from Southwestern Oregon	Geological Society of America (GSA) Bulletin., Vol. 84, No. 8, PP. 2471-2488.	United States, California, West Coast	Blank
DS1970-0692 1973	Ghent, E.D., Peterman, Z.E., Coleman, R.G.	Sr 87/ Sr 86, Potassium, Sodium, Rubidium, and Strontium in SOME ECLOGITES and ASSOCIATED BASALTS from CALIFORNIA and SOUTHWESTERN OREGON.	United States Geological Survey (USGS) Journal of RES., Vol. 1, No. 6, PP. 643-647.	United States, California, Oregon, West Coast	Eclogites, Basalts, Strontium
DS1970-0915 1974	Giardini, A.A., Hurst, V.J., Melton, C.E., Stormer, J.C.Jr.	Biotite As a Primary Inclusion in Diamond: its Nature and Significance.	American Mineralogist., Vol. 59, PP. 783-789.	United States, Gulf Coast, Arkansas, Pennsylvania, South Africa	Mineral Chemistry
DS1970-0695 1973	Gold, D.P.	Crustal Control on the Emplacement of Kimberlites	Proceedings of First International Kimberlite Conference, EXTENDED ABSTRACT VOLUME, PP. 131-134.	South Africa, United States	Tectonics, Genesis
DS1970-0701 1973	Gurney, J.J., Fesq, H.W., Kable, E.J.D.	Clinopyroxene Ilmenite Intergrowths from Kimberlite a Re-appraisal.	Maseru: Lesotho Nat. Dev. Corp. Lesotho Kimberlites, Editor, PP. 238-253.	Lesotho, United States, Kentucky, Appalachia, Kansas	Blank
DS1970-0091 1970	Hearn, B.C.JR.	Xenoliths of the Bearpaw Mountains. Eagle Buttes, and Missouri River Breaks Montana.	Gsa Penrose Conference, Sahuaro Lake, Arizona, Catalogue Of, PP. 93-98.	United States, Montana, Rocky Mountains	Xenoliths, Petrography
DS1970-0712 1973	Hearn, B.C.JR., Boyd, F.R.	Garnet Peridotite Xenoliths in a Montana Kimberlite. #1	International Kimberlite Conference FIRST, EXTENDED ABSTRACT VOLUME., PP. 167-169.	United States, Montana, Rocky Mountains	Kimberlite, Rocky Mountains
DS1970-0925 1974	Heathcote, R.C.	Fenitization of the Arkansaw Novaculite and Adjacent Intrusive, Garland County, Arkansaw.	M.s. Thesis, University Arkansaw, 56P.	United States, Gulf Coast, Arkansas, Garland County	Alteration
DS1970-0928 1974	Helmstaedt, H.	Overplating: a Major Factor in the Tectonics Evolution of The Colorado Plateau.	Eos, Vol. 55, No. 4, P. 448, (abstract.).	United States, Colorado Plateau	Blank
DS1970-0528 1972	Helmstaedt, H., Anderson, O.L., Gavasci, A.T.	Petrofabric Studies of Eclogite, Spinel-websterite, and Spin	Journal of Geophysical Research, Vol. 77, PP. 4350-4365.	United States, Utah, Arizona, Colorado Plateau	Blank
DS1970-0713 1973	Helmstaedt, H., Doig, R.	Eclogite Nodules from Kimberlite Pipes of the Colorado Plateau Samples of Subducted Franciscan Type Oceanic Lithosphere. #1	International Kimberlite Conference FIRST EXTENDED ABSTRACT VOLUME., PP. 171-172.	United States, Colorado Plateau, Colorado, Arizona, Utah, New Mexico	Diatreme
DS1970-0529 1972	Henage, L.F.	A Definitive Study of the Origin of Lamproites	Msc. Thesis University of Oregon.,	United States, Australia	Lamproite, Review
DS1970-0534 1972	Hill, M.	Hunting Diamonds in California	Healdsburg Calif.: Naturegraph Publishing, Pages of History, Saus, 80 P.; 1ST. EDITION, 1959.	United States, California, West Coast	Kimberlite
DS1970-0929 1974	Hills, F.A., Armstrong, R.L.	Geochronology of Precambrian Rocks in the Laramie Range And implications for the Tectonic Framework of Precambrian Southern Wyoming.	Precambrian Research, Vol. 1, PP. 213-225.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1970-0931 1974	Horick, P.J.	The Minerals of Iowa	Iowa Geological Survey Educ. Series, No. 2, 88P.	United States, Iowa, Central States	Diamond, Kimberley
DS1970-0932 1974	Hothem, L.L.	Arkansaw Crater of Diamonds	Gems And Minerals, No. 441, PP. 32-34.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. History, Prospecting
DS1970-0933 1974	Howard, J.M.	Transition Element Geochemistry and Petrography of the Potash Sulfur Springs Intrusive Complex, Garland County, Arkansaw.	Msc. Thesis, University Arkansaw, 118P.	United States, Gulf Coast, Arkansas, Garland County	Geochemistry
DS1970-0722 1973	Howard, J.M., Steele, K.F., Owens, D.R.	Chemically Rounded Xenoliths in an Alkalic Dike, Garland County, Arkansaw.	Geological Society of America (GSA), Vol. 5, No. 3, P. 263. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Petrology
DS1970-0093 1970	Hunt, G.H.	Igneous Rocks of Elliott County Kentucky	Geological Society of America (GSA), Vol. 2, No. 3, P. 220. (abstract.).	United States, Appalachia, Kentucky	Geology, Related Rocks
DS1970-0934 1974	Hunt, G.H.	Variation in Carbon and Oxygen Isotope Ratios of Carbonate In Kimberlite and Associated Rocks Along the 38th. Parallel.	Geological Society of America (GSA), Vol. 6, No. 6, PP. 516-517. (abstract.).	United States, Appalachia, Kentucky	Geochronology, Related Rocks
DS1970-0538 1972	Hunt, G.H., Bolivar, S.L.	Oxygen and Carbon Isotope Ratios of Carbonate from Kimberlites in Elliott County, Kentucky.	Geological Society of America (GSA), Vol. 4, No. 2, PP. 81-82, (abstract.).	United States, Appalachia, Kentucky	Geochronology, Geology
DS1970-0307 1971	Hunt, G.H., Bolivar, S.L., Kuhnhenn, G.	Kimberlite of Elliott County, Kentucky	Geological Society of America (GSA), Vol. 3, No. 5, P. 323, (abstract.).	United States, Appalachia, Kentucky	Geology
DS1970-0723 1973	Hunt, G.H., Engelhardt, R.L.	Carbon and Oxygen Isotope Ratios of Carbonate from Ultramafic Dikes of Western Kentucky.	Geological Society of America (GSA), Vol. 5, No. 4, P. 324, (abstract.).	United States, Kentucky, Central States	Blank
DS1970-0939 1974	Iversen, G.M., Thornton, C.P.	Geochemistry and Mineralogy of the Diatreme Eagle Rock, Northwest Colorado.	Geological Society of America (GSA), Vol. 6, No. 5, P. 450. (abstract.).	United States, Colorado, Rocky Mountains	Diatreme, Related Rocks
DS1970-0101 1970	Jackson, E.D., Wright, T.L.	Xenoliths in the Honolulu Volcanic Series, Hawaii	Journal of Petrology, Vol. 11, P. 405.	United States, Hawaii	Blank
DS1970-0321 1971	Johnson, R.W.JR., Milton, C., Dennison, J.M.	Field Trip to the Igneous Rocks of Augusta, Rockingham and Highland and bath Counties, Virginia.	Virginia Div. Min. Res. Inf. Circular, No. 16, 68P.	United States, Appalachia, Virginia	Geology, Fieldtrip
DS1970-0107 1970	Kettren, L.P.JR.	Igneous Intrusions in Highland County, Virginia	Geological Society of America (GSA), Vol. 2, No. 3, PP. 224-225. (abstract.).	United States, Virginia, Appalachia	Diatreme, Related Rocks
DS1970-0550 1972	Kridelbaugh, S.J., Hobbitt, R.P., Kellogg, K., Larson, E.E.	Petrologic and Paleomagnetic Implication of the Green Mountain Diatreme.	Geological Society of America (GSA), Vol. 4, No. 6, P. 386, (abstract.).	United States, Colorado, Rocky Mountains, Vermont	Related Rocks
DS1970-0742 1973	Kridelbaugh, S.J., Meyer, H.O.A.	Kimberlite from Green Mountain Colorado	Eos, Vol. 54, No. 11, P. 1224, (abstract.).	United States, Colorado, Rocky Mountains	Kimberlite, Geophysics
DS1970-0333 1971	Kumazawa, M.	Elastic Properties of Eclogite Xenoliths from Diatremes of The East Colorado Plateau and Their Implication to the Upper mantle Structure.	Journal of Geophysical Research, Vol. 76, No. 5, PP. 1231-1247.	United States, Colorado Plateau	Blank
DS1970-0951 1974	Langford, R.E.	A Study of the Origin of Arkansaw Diamonds by Mass Spectrometry.	Ph.d. Thesis, University of Georgia, Athens,	United States, Gulf Coast, Arkansas, Pennsylvania	Genesis, Isotope Chemistry
DS1970-0120 1970	Laughlin, W.A., Caussey, J.D.	Phlogopite Kaesutite Bearing Ultramafic Inclusions from a New Locality, bandera Crater, Valencia County, New Mexico.	Eos, Vol. 51, No. 4, P. 449. (abstract.).	United States, New Mexico, Colorado Plateau	Blank
DS1970-0342 1971	Macintyre, R.M.	Apparent Periodicity of Carbonatite Emplacement in Canada	Nature., Vol. 230, MARCH 22ND. PP. 79-81.	United States, Appalachia, New York	Geochronology, Age Dating
DS1970-0752 1973	Mansker, W.L.	Petrology of a Southeastern Missouri Ultramafic Pipe	Rolla: Msc. Thesis, University Missouri, Rolla., 53P.	Missouri, United States, Central States	Alnoite, Avon
DS1970-0957 1974	Mccallum, M.E.	Infrared Detection of Kimberlitic Diatremes in Northern Colorado and Southern Wyoming.	Contributions To Geology, Vol. 13, No. 1, PP. 17-18.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1970-0350 1971	Mccallum, M.E., Eggler, D.H.	Mineralogy of the Sloan Diatreme a Kimberlite Pipe in Northern Larimer County, Colorado.	American Mineralogist., Vol. 56, SEPT.-Oct. No. 9-10, PP. 1735-1749.	United States, Colorado, State Line, Rocky Mountains	Chemical Analyses, Petrography, Xenoliths, Microprobe
DS1970-0761 1973	Mccallum, M.E., Eggler, D.H., Burns, L.K.	Kimberlitic Diatremes in Northern Colorado and Southern Wyoming #1	International Kimberlite Conference FIRST EXTENDED ABSTRACT VOLUME., PP. 217-220.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1970-0958 1974	Mccallum, M.E., Eggler, D.H., Burns, L.K.	Colorado Wyoming Kimberlitic Diatremes: Pt. I, General Geology and Petrography.	Geological Society of America (GSA), Vol. 6, No. 5, P. 457, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1970-0136 1970	Mcgetchin, T.R.	Mechanism of Emplacement of Kimberlite and Related Brecciasat Moses Rock Dike.	International Symposium MECHAN. PROCESSES IN THE MANTLE, FLAGSTAFF., PROGRAM ABSTRACTS, PP. 7-8.	United States, Utah, Colorado Plateau	Blank
DS1970-0763 1973	Mcgetchin, T.R., Besancon, J.R.	Carbonate Inclusions in Mantle Derived Pyropes	Earth Planet. Sci. Letters, Vol. 18, No. 3, PP. 408-410.	United States, Colorado Plateau	Blank
DS1970-0764 1973	Mcgetchin, T.R., Nikhanj, Y.S.	Carbonatite-kimberlite Relations in the Cane Valley Diatreme San Juan County, Utah. #2	Journal of Geophysical Research, Vol. 78, No. 11, APRIL 10, PP. 1854-1869.	United States, Utah, Colorado Plateau, Rocky Mountains	Geology, Inclusions, Petrography, Diatreme
DS1970-0137 1970	Mcgetchin, T.R., Silver, L.T.	Compositional Relations in Minerals from Kimberlite and Related Rocks in the Moses Rock Dike San Juan County Utah.	American Mineralogist., Vol. 55, SEPT. -Oct. PP. 1738-1771.	United States, Utah, Colorado Plateau, Rocky Mountains	Petrography, Mineral Chemistry, Inclusions
DS1970-0557 1972	Mcgetchin, T.R., Silver, L.T.	A Crustal Upper Mantle Model for the Colorado Plateau Based on Observations of Crystalline Rock Fragments in the Moses Rock Dike.	Journal of Geophysical Research, Vol. 77, No. 35, Dec. 19TH. PP. 7022-7037.	United States, Utah, Colorado Plateau, Rocky Mountains	Petrography, Xenoliths
DS1970-0139 1970	Mcgetchin, T.R., Silver, L.T., Chodos, A.A.	Mineral Inclusions in Pyropes from Colorado Plateau Kimberlite Pipes.	Eos, Vol. 51, No. 4, P. 448. (abstract.).	United States, Colorado Plateau	Blank
DS1970-0765 1973	Mcgetchin, T.R., Ulrich, G.W.	Xenoliths in Maars and Diatremes with Inferences for the Moon, Mars and Venus.	Journal of Geophysical Research, Vol. 78, PP. 1832-1852.	United States, Colorado Plateau	Blank
DS1970-0769 1973	Mitchell, R.H.	Isotopic Composition of Lead in Galena from the Mountain Pass Carbonatite.	Nature., Vol. 241, PP. 17-18.	United States, California, West Coast	Related Rocks, Geochronology
DS1970-0367 1971	Mitchell, R.H., Krouse, H.R.	Isotopic Composition of Sulphur in Carbonatite at Mountain Pass, California.	Nature., Vol. 231, P. 182.	United States, California, West Coast	Related Rocks
DS1970-0370 1971	Naeser, C.W.	Geochronology of the Navajo-hopi Diatremes, Four Corners Are	Journal of Geophysical Research, Vol. 76, No. 20, PP. 4978-4985.	United States, Arizona, New Mexico, Utah, Colorado Plateau, Rocky Mountains	Diatreme
DS1970-0969 1974	Nicoll, L.D.	Petrogenesis of the Highwood and Alnoite Petrographic Provinces of the Highwood Mountain Area, Montana.	Msc. Thesis University of Calgary,	United States, Montana, Rocky Mountains	Blank
DS1970-0383 1971	Pimentel, N.R.	Potassium Argon Age Determination of a Mica Peridotite Dikein Western Pennsylvania.	Msc. Thesis, Pittsburgh University,	Appalachia, Pennsylvania, United States	Geochronology, Kimberlite
DS1970-0179 1970	Powell, J.L., Bell, K.	Strontium Isotopic Studies of Alkalic Rocks; Localities From Australia, Spain and Western United States.	Contributions to Mineralogy and Petrology, Vol. 27, PP. 1-10.	Australia, Western Australia, Wyoming, United States, Rocky Mountains	Kimberlite, Leucite, Lamproite, Leucite Hills, Fitzroy Valley
DS1970-0389 1971	Puckett, J.L.	Geophysical Study of Shear Zones in the East Central Medicine Bow Mountains, Wyoming and of Kimberlitic Diatremes in Northern Colorado.	Fort Collins: Msc. Thesis, Colorado State University, 83P.	Colorado, United States, Rocky Mountains, State Line	Kimberlite, Geophysics
DS1970-0584 1972	Puckett, J.L., Mccallum, M.E., Johnson, R.B., Filson, R.H.	Preliminary Geophysical Evaluation of Kimberlitic Diatremesin Northern Colorado and Southern Wyoming.	Geological Society of America (GSA), Vol. 4, No. 6, P. 403, (abstract.).	Colorado, Wyoming, United States, State Line, Rocky Mountains	Kimberlite, Geophysics
DS1970-0390 1971	Putell, J.	The Tiffany Touch	New York: Random House., 309P.	United States	Kimberley, History
DS1970-0812 1973	Rees, D.C., Erickson, M.P., Whelan, J.A.	Geology and Diatremes of Desert Mountain, Utah	Unknown,	United States, Utah, Rocky Mountains	Diatreme
DS1970-0181 1970	Reid, J.B.JR.	The Origin of Lherzolite Xenoliths from Salt Lake Crater, Hawaii.	Unknown., ASBTRACT.	United States, Hawaii	Blank
DS1970-0978 1974	Reitan, P.H.	Eu Anomaly in Kimberlite	Geology, Vol. 2, No. 2, FEBRUARY P. 72. (abstract.)	United States	Rare Earth Elements (ree), Geochemistry
DS1970-0182 1970	Reitan, P.H., Szekely, J., Foster, B.P.	Material Emplacement Models for Dikes Extending to the Mantl	Eos, Vol. 51, P. 447. (abstract.).	United States, Appalachia, New York	Blank
DS1970-0980 1974	Ritzma, H.R.	Dating of Igneous Dike, Eastern Uinta Mountains	Utah Geology, Vol. 1, No. 1, FALL, P. 95.	United States, Utah, Rocky Mountains	Geochronology, Related Rocks
DS1970-0399 1971	Rosenhouse, L.	Handful of Diamonds from the Feather River Mines	California Today, AUGUST 22ND. PP. 18-19; P. 28.	United States, California, West Coast	Blank
DS1970-0406 1971	Satterly, J.	Diamond: Ussr and North America, a Target for Exploration In Ontario.	Ontario Department of Mines, NORTH. AFFAIRS, No. 48, 43P.	Canada, United States, Russia	Prospecting, Diamond Occurrences
DS1970-0824 1973	Shimizu, N.	Trace Element Comparison of Lherzolite and Eclogite Inclusions from Salt Lake Crater, Hawaii.	Eos, Vol. 54, No. 4, P. 501. (abstract.).	United States, Hawaii	Blank
DS1970-0825 1973	Shimizu, N.	Geochemistry of Ultramafic Inclusions from Salt Lake Crater, Hawaii and from South African Kimberlites.	International Kimberlite Conference SECOND EXTENDED ABSTRACT VOLUME., PP. 287-290.	United States, Hawaii, South Africa	Blank
DS1970-0826 1973	Shimizu, N., Boyd, F.R.	Trace Element Contents of Clinopyroxenes from Garnet Lherzolites in Kimberlites.	Carnegie Institute Yearbook, FOR 1972, PP. 272-276.	United States, Hawaii	Blank
DS1970-0601 1972	Smithson, S.B., Hodge, D.S.	Field Relations and Gravity Interpretation in the Laramie Anorthosite Complex.	University WYOMING CONTRIB. TO GEOLOGY, Vol. 11, No. 2, PP. 43-59.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1970-0609 1972	Towner, J.	Diamond Hunting in Murfreesboro, Arkansaw	Lapidary Journal, Vol. 26, PP. 1268-1276.	United States, Gulf Coast, Arkansas, Pennsylvania	History, Prospecting
DS1970-0999 1974	Ulrich, W.	Hunting Herkimer Diamonds	Rockhound., Vol. 3, No. 5, PP. 4-7.	United States, Appalachia, New York	Herkimer Diamonds
DS1970-0852 1973	Wilshire, H.G., Meyer, C.E., Calk, L.C., Schwarzman, E.C.	Ultramafic Xenoliths from Western United States: Aluminium Augite And Chromium Diopside Groups.	Eos, Vol. 54, No. 11, P. 1224. (abstract.).	United States, Colorado Plateau	Blank
DS1970-0853 1973	Wilshire, H.G., Shervais, J.W.	aluminium augite and chromium DIOPSIDE ULTRAMAFIC XENOLITHS in BASALTIC ROCKS from WESTERN UNITED STATES... STRUCTURAL and TEXTURAL RELATIONSHIPS.	International Kimberlite Conference SECOND, EXTENDED ABSTRACT., PP. 321-324.	United States, Colorado Plateau	Blank
DS1970-0215 1970	Wing, R.S., Dellwig, L.F.	Radar Expression of Virginia Dale Precambrian Ring Dike Complex, Wyoming Colorado.	Geological Society of America (GSA) Bulletin., Vol.81, PP. 293-298.	United States, State Line, Colorado, Wyoming, Rocky Mountains	Remote Sensing, Related Rocks
DS1970-0856 1973	Woolsey, T.S., Mccallum, M.E., Schumm, S.A.	Physical Modelling of Diatreme Emplacement	International Kimberlite Conference FIRST EXTENDED ABSTRACT VOLUME., PP. 235-238.	United States, State Line, Rocky Mountains	Genesis, Model
DS1975-0219 1976	Adams, W.T.	Gem Stones; United States Bureau of Mines, 1976	United States Bureau of Mines MINERALS YEARBOOK, Vol. 1, PP. 1-10.	United States, Canada, Global, South Africa	Blank
DS1975-0904 1979	Adams, W.T.	Diamond-industrial	United States Bureau of Mines MINERAL COMMODITY PROFILE., JUNE 16P.	United States, Global	Production, Supply, Exports, Resources, Reserves
DS1975-0659 1978	Alexander, D.H., Heinrich, E.W.	Geology and Petrogenesis of the Mcclure Mountains Mafic Alkalic Carbonatitic Complex, Fremont County, Colorado.	Geological Society of America (GSA), Vol. 10, No. 6, P. 245. (abstract.).	United States, Colorado, Rocky Mountains	Carbonatite
DS1975-0660 1978	Alexander, D.H., Heinrich, E.W.	Geology and Petrogenesis of the Mcclure Mountain Mafic Alkalic Carbonatitic Complex, Fremont County, Colorado.	Geological Society of America (GSA), Vol. 10, No. 6, P. 245. (abstract.).	United States, Colorado, Rocky Mountains	Blank
DS1975-0007 1975	Anderson, O.L., Perkins, P.	A Plate Tectonics Model Involving Non-laminar Asthenospheric Flow to Account for Irregular Patterns of Magmatism in The southwestern United States.	Physics and Chemistry of the Earth, Vol. 9, PP. 113-122.	United States, Colorado Plateau, Rocky Mountains	Kimberlite Genesis
DS1975-0012 1975	Anon.	Couple's Hobby Is a Real Gem	San Diego Union., SUNDAY AUG. 3RD., P. A23.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1975-0013 1975	Anon.	Diamond Discovery in Wyoming	United States Geological Survey (USGS) Department INTERIOR NEWS RELEASE JUNE 10, 2P.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0014 1975	Anon.	Minute Diamonds Found in Rock Sample from Wyoming	United States Geological Survey (USGS) MINERALS YEARBOOK, P. 657.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0449 1977	Anon.	Diamond Found in Arkansaw	Gems And Gemology, Vol. 40, FALL P. 349.	United States, Arkansas, Gulf Coast, Pennsylvania	News Item. Diamond Occurrence
DS1975-0450 1977	Anon.	Diamond Hunting in Minnesota	Lapidary Journal, Vol. 31, Feb. P. 2610;	United States, Minnesota, Great Lakes	Blank
DS1975-0675 1978	Anon.	Michigan's Diamonds	Lapidary Journal, Vol. 32, PP. 2598-2599.	United States, Michigan, Great Lakes	Blank
DS1975-0929 1979	Armbrustmacher, T.J.	Abundance and Distribution of Thorium in the Carbonatite Stock at Iron Hill, Powderhorn District, Gunnison County, Colorado.	United States Geological Survey (USGS) OPEN FILE., No. 79-536, 31 P.	United States, Colorado, Rocky Mountains	Blank
DS1975-0678 1978	Armbrustmacher, T.J., Brownfield, I.K.	Carbonatites in the Wet Mountains Area, Custer and Fremont Counties, colorado.	United States Geological Survey (USGS) OPEN FILE., No. 78-177, 5P.	United States, Colorado, Rocky Mountains	Blank
DS1975-0242 1976	Blackstone, R.E.	Contact Relationships of Laramie Anorthosite and Associated rocks Poe Mountain Area, Albany County, Wyoming.	Msc. Thesis, University Wyoming, 164P.	United States, Wyoming, Rocky Mountains	Regional Studies
DS1975-0465 1977	Boctor, N.Z., Meyer, H.O.A.	Oxide and Sulfide Minerals in Kimberlite from Green Mountain Colorado #1	International Kimberlite Conference SECOND, EXTENDED ABSTRACT VOLUME.,	United States, Colorado, Rocky Mountains, Vermont	Blank
DS1975-0467 1977	Bolivar, S.L.	Geochemistry of the Prairie Creek, Arkansaw and Elliott County, Kentucky Intrusions.	Ph.d. Thesis, University New Mexico, 441P.	United States, Gulf Coast, Arkansas, Pennsylvania, Appalachia, Kentucky, East	Geochemistry, Lamproite
DS1975-0246 1976	Bolivar, S.L., Brookins, D.G.	Carbonatites Associated with Ultramafic Rocks from Mid Continental United States (us)	Eos, Vol. 57, No. 4, P. 355. (abstract.).	United States, Appalachia, Central States	Blank
DS1975-0954 1979	Bolivar, S.L., Brookins, D.G.	Geophysical and Rubidium-strontium (rb-sr) Study of the Prairie Creek Arkansaw Kimberlite.	International Kimberlite Conference SECOND Proceedings, Vol. 1, PP. 289-299.	United States, Gulf Coast, Arkansas, Pennsylvania	Kimberlite, Geophysics, Groundmag, Geochemistry, Lamproite
DS1975-0247 1976	Bolivar, S.L., Brookins, D.G., Lewis, R.D., Meyer, H.O.A.	Geophysical Studies of the Prairie Creek Kimberlite Murfreesboro, Arkansaw.	Eos, Vol. 57, No. 10, P. 762, (abstract.).	United States, Gulf Coast, Arkansas, Pennsylvania	Kimberlite, Geophysics, Groundmag, Gravity
DS1975-0252 1976	Brookins, D.G., Della valle, R.S., Bolivar, S.L.	Uranium Geochemistry of Some United States Kimberlites	Eos, Vol. 57, No. 10, P. 762, (abstract.).	United States, Gulf Coast, Arkansas, Central States, Rocky Mountains, Nebraska	Blank
DS1975-0963 1979	Brookins, D.G., Della valle, R.S., Bolivar, S.L.	Significance of Uranium Abundance in United States Kimberlites.	International Kimberlite Conference SECOND Proceedings, Vol. 1, PP. 280-288.	United States, Gulf Coast, Arkansas, Appalachia, Kentucky, Central States	Uranium
DS1975-0711 1978	Burke-Griffin, N.M.	Geology, Petrology and Geochemistry of Black Butte Volcanicneck, Gravelly Range, Montana.	Msc. Thesis Wright State University,	Montana, United States, Rocky Mountains	Lamproite
DS1975-0712 1978	Cahill, C.	Diamond Hunting: Herkimer That Is	Gems And Minerals, No. 488, P. 8.	United States, New York, Appalachia	Blank
DS1975-0475 1977	Cannon, M.C.	Diamonds Discovered Along the Colorado-Wyoming Border	Lapidary Journal, Vol. 31, No. 5, PP. 1220-1224.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0255 1976	Chronic, J.	Diamond Bearing Paleozoic Diatremes in Colorado and Wyoming	Colorado Sch. Mines Prof. Contrib., No. 8, PP. 101-109.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Diatreme, Kimberlite
DS1975-0719 1978	Cook, R.B.	Minerals of Georgia	Georgia Geol. And Water Resources Div., PP. 19-20.	United States, Appalachia, Georgia	Diamond Occurrence
DS1975-0054 1975	Corneille, E.S.	Bostonite and Lamprophyre Dikes from the Champlain Valley, vermont.	University NEW YORK, AT STONY BROOK, MSc. THESIS	United States, Vermont, Great Lakes	Blank
DS1975-0487 1977	Cunningham, M.P.	Geothermometry of Spinel Lherzolites, Kilbourne Hole, New Mexico.	Bsc. Thesis, University Western Ontario,	United States, New Mexico, Colorado Plateau	Xenoliths
DS1975-0488 1977	Czamanske, G.K., Meyer, C.E., Erd, R.C.JR., Norman, M.B.	The Coyoye Peak Diatreme Humboldt County, California	Eos, Vol. 58, No. 12, P. 1247. (abstract.).	United States, California, West Coast	Diatreme
DS1975-0494 1977	Denison, R.E., Burke, W.H., Otto, J.B., Heatherington, E.A.	Age of Igneous and Metamorphic Activity Affecting the Ouachita Foldbelt.	Arkansaw GEOL. COMM., PP. 25-40.	United States, Oklahoma, Arkansas	Structure, Geochronology
DS1975-0994 1979	Desautels, P.E.	The Gem Collection	Washington: The Smithsonian Institution Press, 1st. Edition,	Global, United States	Kimberlite, Kimberley, Janlib, Gemology
DS1975-0066 1975	Desborough, G.A.	Authigenic Albite and Potassium Feldspar in the Green Riverformation, Colorado and Wyoming.	American MINERALOGIST., Vol. 60, No. 3-4, PP. 235-239.	United States, Colorado, Wyoming, Rocky Mountains, Green River Basin	Blank
DS1975-0999 1979	Donnelly, M.E.	Petrology and Structure of a Portion of the Precambrian Mullen Creek Metaigneus Mafic Complex, Medicine Bow Mountains, Wyoming.	Fort Collins: Msc. Thesis, Colorado State University,	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DS1975-0499 1977	Donnelly, M.E., Mccallum, M.E.	Petrology and Structure of the Southern Portion of the Mullen Creek Mafic Complex, Medicine Bow Mountains, Wyoming.	Geological Society of America (GSA), Vol. 9, No. 6, PP. 72-721, (abstract.).	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1975-0501 1977	Dukes, J.W.Sr.	A Field Trip for Diamonds	Lapidary Journal, Vol. 30, No. 11, P. 2610.	United States, Great Lakes, Wisconsin	Blank
DS1975-0071 1975	Eggler, D.H., Mccallum, M.E.	A Field Test of Geothermometers and Barometers	International Conference ON GEOTHERMOMETRY, EXTENDED ABSTRACTS, BOETTCH, 3P.	United States, Colorado, Wyoming, Rocky Mountains	Blank
DS1975-0072 1975	Eggler, D.H., Mccallum, M.E.	Diamond Bearing Peridotite Nodule in Wyoming Kimberlite Pipe	Geological Society of America (GSA), Vol. 7, No. 7, P. 1065, (abstract.).	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0273 1976	Eggler, D.H., Mccallum, M.E.	A Geotherm from Megacrysts in the Sloan Kimberlite Pipes, Colorado	Carnegie Institute Yearbook, FOR 1975 PP. 538-541.	United States, Colorado, State Line, Rocky Mountains	Blank
DS1975-0274 1976	Eggler, D.H., Mccallum, M.E., Smith, C.B.	A Geotherm from Megacrysts in Colorado-Wyoming Kimberlite Pipes.	Geological Society of America (GSA), Vol. 8, No. 6, P. 851, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0502 1977	Eggler, D.H., Mccallum, M.E., Smith, C.B.	Discrete Nodule Assemblages in Kimberlites from the Northern Colorado and Southern Wyoming Evidence for a Diapiric Origin of Kimberlite.	International Kimberlite Conference SECOND, EXTENDED ABSTRACT VOLUME.,	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1005 1979	Eggler, D.H., Mccallum, M.E., Smith, C.B.	Megacryst Assemblages in Kimberlite from Northern Colorado And Southern Wyoming: Petrology Geothermometry-barometry And areal Distribution.	International Kimberlite Conference SECOND Proceedings, Vol. 2, PP. 213-226.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0275 1976	Ehrenberg, S.N.	Colorado Plateau Garnet Peridotite Xenoliths Strontium Analyses of Diopsides.	Eos, Vol. 57, P. 1026, (abstract.).	United States, Colorado Plateau	Blank
DS1975-0734 1978	Ehrenberg, S.N.	Petrology of Potassic Volcanic Rocks and Ultramafic Xenoliths from the Navajo Volcanic Field, New Mexico and Arizona.	Ph.d. Thesis, University California, Los Angeles, 259P.	United States, Arizona, New Mexico, Colorado Plateau	Minettes
DS1975-1007 1979	Ehrenberg, S.N.	Garnetiferous Ultramafic Inclusions in Minette from the Navajo Volcanic Field.	International Kimberlite Conference SECOND Proceedings, Vol. 2, PP. 330-344.	United States, Arizona, Colorado Plateau	Blank
DS1975-1008 1979	Ehrenberg, S.N., Griffin, W.L.	Garnet Granulite and Associated Xenoliths in Minette and Serpentinite Diatremes of the Colorado Plateau.	Geology, Vol. 7, OCTOBER PP. 483-487.	United States, Colorado Plateau	Blank
DS1975-1013 1979	Essene, E.J., Valley, J.W.	High Pressure Akermanite in the Adirondacks	Geological Society of America (GSA), Vol. 11, No. 1, P. 11. (abstract.).	United States, Appalachia, Canada, Quebec	Blank
DS1975-0744 1978	Francis, D.M.	The Implications of the Compositional Dependence of Texture in Spinel Lherzlite Xenoliths.	Journal of GEOLOGY, Vol. 86, No. 4, PP. 473-485.	United States, Alaska	Blank
DS1975-0281 1976	Galipeau, J.M.	Petrochemistry of the Virginia Dale Ring Dike Complex	Msc. Thesis, University North Carolina.,	United States, Wyoming, Colorado, State Line, Rocky Mountains	Regional Studies
DS1975-1025 1979	Galipeau, J.M., Ragland, P.C.	Whole Rock Chemical Constraints on the Origin of the Virginia Dale Ring Dike Complex.	Geochemical Journal, Vol. 13, No. 5, NOVEMBER PP. 207-216.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geochemistry
DS1975-1032 1979	George, G.R.	Leucite Hills	Wyoming Geol. Association Guidebook, Vol. 2, PP.216-217.	United States, Wyoming, Rocky Mountains, Leucite Hills	Blank
DS1975-0081 1975	Giardini, A.A., Melton, C.E.	Chemical Dat a on a Colorless Arkansaw Diamond and its Black amorphous C Iron Nickel S Inclusion.	American Mineralogist., Vol. 60, PP. 934-936.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineral Chemistry, Age Of Diamonds
DS1975-0082 1975	Giardini, A.A., Melton, C.E.	The Nature of Cloud Like Inclusions in Two Arkansaw Diamonds	American Mineralogist., Vol. 60, PP. 932-933.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineralogy
DS1975-0750 1978	Gogineni, S.V., Melton, C.E., Giardini, A.A.	Some Petrological Aspects of the Prairie Creek Diamond Bearing Kimberlite Diatreme, Arkansaw.	Contributions to Mineralogy and Petrology, Vol. 66, No. 3, PP. 251-262.	United States, Gulf Coast, Arkansas, Pennsylvania	Petrology, Lamproite
DS1975-0753 1978	Guyett, J.	It Started with Herlimer; for the Quartz Diamonds Go to Middleville, New York.	Rock And Gem., Vol. 8, No. 7, PP. 16-18.	United States, Appalachia, New York	Blank
DS1975-1047 1979	Gwyn, Q.H.J., Dreimanis, A.	Heavy Mineral Assemblages in Tills and Their Use in Distinguishing Glacial Lobes in the Great Lakes Region.	Canadian Journal of Earth Sciences, Vol. 16, No. 12, PP. 2219-2235.	United States, Great Lakes	Geomorphology, Heavy Minerals, Geochemistry
DS1975-1056 1979	Hart, S.R., Padovani, E.R., Roden, H.K.	Strontium Isotopic Relationships in Lower Crustal Nodules from Kilbourne Hole, New Mexico.	Geological Society of America (GSA), Vol. 11, No. 7, P. 439. (abstract.).	United States, New Mexico, Colorado Plateau	Blank
DS1975-0525 1977	Hausel, W.D.	Report on the Boden Placer Diamonds from the Medicine Bow Mountains Carbon County Wyoming.	Wyoming Geological Survey Internal Report, 9P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Kimberlite, State Line Medicine Bow Mountains, Rocky Mountains
DS1975-1062 1979	Hausel, W.D.	Diamond Bearing and Non Diamond Bearing Kimberlites in Colorado and Wyoming.	Lecture Presented Before The American Chemical Society In La, 1P. (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1063 1979	Hausel, W.D., Mccallum, M.E., Woodzick, T.L.	Preliminary Report on Exploration for Diamondiferous Kimberlites Colorado and Wyoming.	Colorado Mining Association Yearbook, PP. 109-122.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Alluvial Sampling, Prospecting, Geophysics, Kimberlite
DS1975-1064 1979	Hausel, W.D., Mccallum, M.E., Woodzick, T.L.	Exploration for Diamond Bearing Kimberlite in Colorado and Wyoming-an	Wyoming Geological Survey Report Investigations, No. 19, 29P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1065 1979	Hausel, W.D., Mccallum, M.E., Woodzick, T.L.	Update on Exploration for Diamonds in Colorado Wyoming Kimberlite Province.	A.a.p.g.s.e.p.m. Meeting, Vol. 63, No. 5, P. 830, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1066 1979	Hausel, W.D., Reavis, G.L.	Review of Diamond Prospecting in Northern Colorado and Southern Wyoming.	Northwest Mining Association 85th. Annual Meeting, ABSTRACT.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1067 1979	Hausel, W.D., Reavis, G.L., Stephenson, T.R.	Prospecting for Kimberlite in Wyoming Using Heavy Mineral Alluvial sampling Methods.	Wyoming Geological Survey Open File Report, No. 79-6, 13P.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0292 1976	Hearn, B.C.JR.	Geologic and Tectonic Maps of the Bearpaw Mountains Area North Central Montana.	United States Geological Survey (USGS) miscellaneous INV., MAP No. MI 919, 1:125, 000.	United States, Montana, Rocky Mountains	Geology, Tectonics
DS1975-1069 1979	Hearn, B.C.JR.	Preliminary Map of Diatremes and Alkalic Ultramafic Intrusions in the Missouri River Breaks Vicinity, North Central Montana.	United States Geological Survey (USGS) OPEN FILE REPORT., No. 79-128.	United States, Montana, Rocky Mountains	Blank
DS1975-0102 1975	Hearn, B.C.JR., Boyd, F.R.	Garnet Peridotite Xenoliths in a Montana Kimberlite. #2	Physics Chem. Earth., Vol. 9, PP. 247-256.	United States, Montana, Rocky Mountains	Blank
DS1975-0293 1976	Heathcote, R.C.	Fenitization of the Arkansaw Novaculite, Garland County, Arkansas.	Geological Society of America (GSA), Vol. 8, No. 6, P. 910. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Alteration
DS1975-1070 1979	Heathcote, R.C.	Temporal Relationships of Carbonatite and Fenite at Potash Sulfur Springs, Arkansaw.	Geological Society of America (GSA), Vol. 11, No. 2, PP. 148-149. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Petrology
DS1975-0103 1975	Helmstaedt, H., Doig, R.	Eclogite Nodules from Kimberlite Pipes of the Colorado Plateau-samples of Subducted Franciscan Type Oceanic Lithosphere. #2	Physics and Chemistry of the Earth, Vol. 9, PP. 95-111.	United States, Colorado Plateau	Blank
DS1975-0526 1977	Helmstaedt, H., Schulze, D.J.	Type A- Type C Eclogite Transition in a Xenolith from the Moses Rock Diatreme Further Evidence for the Presence of Metamorphosed Ophiolites Beneath the Colorado Plateau.	International Kimberlite Conference SECOND EXTENDED ABSTRACT VOLUME.,	United States, Colorado Plateau	Blank
DS1975-1072 1979	Helmstaedt, H., Schulze, D.J.	Garnet Clinopyroxene-chlorite Eclogite Transition in a Xenolith from Moses Rock: Further Evidence for Metamorphosed Ophiolites Under the Colorado Plateau.	International Kimberlite Conference SECOND Proceedings, Vol. 2, PP. 357-365.	United States, Colorado Plateau	Blank
DS1975-0761 1978	Hills, F.A., Houston, R.S.	Early Proterozoic Tectonics of Southern Wyoming and Northern Colorado and the Tectonic Setting of Radioactive Precambrian Conglomerates.	Wyoming Public Inf. Circular, No. 7, P. 19.	United States, Wyoming, Colorado, Rocky Mountains, State Line	Kimberlite, Tectonics, State Line Rocky Mountains
DS1975-1073 1979	Hills, F.A., Houston, R.S.	Early Proterozic Tectonics of the Central Rocky Mountains, North America.	University WYOMING Contributions to Geology, Vol. 17, No. 2, PP. 89-109.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0104 1975	Hills, F.A., Houston, R.S., Gast, P.W.	Chronology of Some Precambrian Igneous and Metamorphic Events of the Medicine Bow Mountains, Wyoming.	Geological Society of America (GSA) SPECIAL PAPER., No. 82, P. 92, (abstract.).	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1975-0532 1977	Houston, R.S., Ebbett, B.E.	Geologic Map of the Sierra Madre and Western Medicine Bow Mountains, Southeastern Wyoming.	United States Geological Survey (USGS) FIELD STUDIES MAP, MF-827, L: 125, 000.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1975-0106 1975	Howard, J.M., Jackson, K.C.	Petrography of the Potash Sulfur Springs Intrusion, Garlandcounty, Arkansaw.	Geological Society of America (GSA), Vol. 7, No. 2, PP. 173-174. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Petrography
DS1975-0107 1975	Howard, J.M., Lamb, G.C.	Transition Element Geochemistry of the Potash Sulfur Springs Intrusion, Garland County, Arkansaw.	Geological Society of America (GSA), Vol. 7, No. 2, P. 174. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Geochemistry
DS1975-0108 1975	Howard, J.M., Steele, K.F.	Origin of the Potash Sulfur Springs Intrusive Complex, Arkansas.	Geological Society of America (GSA), Vol. 7, No. 4, P. 502. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Geology
DS1975-0109 1975	Hunt, G.H.	Diamond Prospecting and Mantle Xenoliths of the Kimberlite Pipes of Elliott County, Kentucky.	Geological Society of America (GSA), Vol. 7, No. 4, P. 503. (abstract.).	United States, Appalachia, Kentucky	Petrography
DS1975-0295 1976	Hunt, G.H.	Carbonatitic Ultramafic Rocks of Kentucky	Eos, Vol. 57, No. 10, P. 761. (abstract.).	United States, Appalachia, Kentucky	Related Rocks
DS1975-0533 1977	Hunt, G.H.	Variation of Mineral Assemblages and Textures; Studies in Ultramafic and Associated Rocks from Western and Eastern Kentucky Along or Near the 38th. Parallel Lineament.	Geological Society of America (GSA), Vol. 9, No. 5, PP. 608-609. (abstract.).	United States, Kentucky, Central States	Blank
DS1975-1076 1979	Hunter, W.C.	The Garnet Ridge and Red Mesa Kimberlitic Diatremes Colorado Plateau; Geology, Mineral Chemistry and Geothermobarometry.	Ph.d. Thesis, University Texas, Austin., 157P.	United States, Arizona, Utah, Colorado Plateau	Blank
DS1975-1077 1979	Hunter, W.C., Smith, D.	Chemistry and Geothermometry of Inclusions in Pyrope from Garnet Ridge Arizona and Red Mesa Utah Diatremes Colorado Plateau.	Geological Society of America (GSA), Vol. 11, No. 7, P. 447, (abstract.).	United States, Arizona, Utah, Colorado Plateau	Blank
DS1975-0769 1978	Jackson, K.C.	Arkansaw Syenites, Fenitized Crustal Material?	Geological Society of America (GSA), Vol. 10, No. 1, PP. 7-8.	United States, Gulf Coast, Arkansas, Hot Spring County, Garland County	Magnet Cove, Potash Sulfur Springs, Petrology
DS1975-0297 1976	Jackson, K.D., Steele, K.F.	New Dat a on Some Arkansaw Igneous Rocks	Geological Society of America (GSA), Vol. 8, No. 1, PP. 25-26. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Geochemistry
DS1975-0541 1977	Janse, A.J.A.	Sloan 1 and 2 Diamondiferous Kimberlites, Larimer County, Colorado	Internal Report To American Selco, 8P.	United States, Colorado, State Line, Rocky Mountains	Blank
DS1975-0770 1978	Janse, A.J.A.	Summary of Localities and Details of Finds to Accompany The map on Diamond and Kimberlite Occurrences in North America.	Selco Inc., INTERNAL UNPUBL. REPORT.	United States, Appalachia, Central States	Diamond Occurrences, Listing, Catalogue
DS1975-1082 1979	Janse, A.J.A.	First Reconnaissance in Northern Colorado and Southern Wyoming- Prairie Divide and Leucite Hills.	Internal Report To American Selco, 7P.	United States, Wyoming, Colorado, State Line, Rocky Mountains	Blank
DS1975-0301 1976	Johnson, M., Baker, D.R.	Intrusive Model of the Magnet Cove Complex, Arkansaw	Geological Society of America (GSA), Vol. 8, No. 1, P. 26. (abstract.).	United States, Gulf Coast, Arkansas, Hot Spring County	Genesis, Structure
DS1975-0114 1975	Johnson, M.L.	Carbon and Oxygen Isotope Evolution in the Magnet Cove Complex, Arkansaw.	Msc. Thesis, Rice University, Houston, Texas, 63P.	United States, Gulf Coast, Arkansas, Hot Spring County	Blank
DS1975-1088 1979	Jones, B.	Diamonds. Pt. 1 and 2	Rock Gem., Vol. 9, No. 1, PP. 40-44; 46-47; No. 2, PP. 48-54; 92-93.	United States	Blank
DS1975-0543 1977	Karlstrom, K.E.	Geology of the Proterozoic Deep Lake Group, Central Medicine Bow Mountains, Wyoming.	Msc. Thesis, University Wyoming, 116P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DS1975-1095 1979	Karlstrom, K.E., Houston, R.S.	Stratigraphy and Uranium Potential of Early Proterozoic Metasedimentary Rocks in the Medicine Bow Mountains, Wyoming.	Wyoming Geological Survey Report Inv., No. 13, 45P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1975-1096 1979	Karlstrom, K.E., Houston, R.S.	Stratigraphy of the Phantom Group Metamorphic Suite and Deep Lake Group and a Review of Tectonic History of the Medicine Bow Mountains.	University WYOMING Contributions to Geology, Vol. 17, No. 2, PP. 11-133.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1975-0776 1978	Kay, S.M., Kay, R.W., Hangas, J., Snedden, T.	Crustal Xenoliths from Potassic Lavas, Leucite Hills, Wyomin	Geological Society of America (GSA), Vol. 10, No. 7, P. 432. (abstract.).	United States, Wyoming, Rocky Mountains, Leucite Hills	Blank
DS1975-1098 1979	Keller, G.R., Braile, L.W., Morgan, P.	Crustal Structure, Geophysical Models and Contemporary Tectonism of the Colorado Plateau.	Tectonophysics, Vol. 61, PP. 131-147.	United States, Colorado Plateau	Tectonics
DS1975-0791 1978	Lanthier, L.R.	Stratigraphy and Structure of the Lower Part of the Precambrian Libby Creek Group, Central Medicine Bow Mountains #1	Msc. Thesis, University Wyoming, 30P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DS1975-1113 1979	Leighton, V.L., Mccallum, M.E.	Rapid Evaluation of Heavy Minerals in Stream Sediments of The Prairie Divide Area of Northern Colorado. a Tool for Kimberlite Exploration.	United States Geological Survey (USGS) OPEN FILE., No. 79-761, 1 MAP WITH ABSTRACT AND RESULTS.	United States, Colorado, Wyoming, State Line	Geochemistry, Prospecting, Heavy Minerals, Techniques
DS1975-0554 1977	Lewis, R.D.	Mineralogy, Petrology and Geophysical Aspects of the Prairie Creek Kimberlite, Near Murfreesboro, Arkansaw.	Msc. Thesis, Purdue Univ, West Lafayette, Indiana.,	United States, Gulf Coast, Arkansas	Kimberlite, Geophysics
DS1975-0555 1977	Lewis, R.D., Meyer, H.O.A.	Diamond Bearing Kimberlite of Prairie Creek, Murfreesboro, Arkansas.	International Kimberlite Conference SECOND EXTENDED ABSTRACT VOLUME.,	United States, Gulf Coast, Arkansas, Pennsylvania	Petrology
DS1975-0324 1976	Lewis, R.D., Meyer, H.O.A., Bolivar, S.L., Brookins, D.G.	Mineralogy of the Diamond Bearing 'kimberlite' Murfreesboro, Arkansaw.	Eos, Vol. 57, No. 10, P. 761. (abstract.).	United States, Gulf Coast, Arkansas, Pennsylvania	Geochronology, Alteration, Petrography, Perovskite
DS1975-0326 1976	Louks, R.R.	Platinum-gold-copper Mineralization Central Medicine Bow Mountains, Wyoming.	Msc. Thesis, Colorado State University, Fort Collins, 298P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies, Tectonics
DS1975-0126 1975	Mabarak, C.D.	Heavy Minerals in Late Tertiary Gravel and Recent Alluvial-colluvial Deposits in the Prairie Divide Region of Northern Larimer County, Colorado.	Msc. Thesis, Colorado State University, 90P.	Colorado, State Line, Rocky Mountains, United States	Prospecting, Kimberlite
DS1975-1128 1979	Maslowski, A.J.	Glacial Diamonds	Gems And Minerals, JANUARY, P. 50; PP. 72-73.	United States, Great Lakes, Wisconsin	Geomorphology, Diamond Occurrence
DS1975-0334 1976	Mccallum, M.E.	An Emplacement Model to Explain Contrasting Mineral Assemblages in Adjacent Kimberlite Pipes.	Journal of GEOLOGY, Vol. 84, PP. 673-684.	United States, State Line, Rocky Mountains	Genesis, Model
DS1975-1132 1979	Mccallum, M.E.	Geochemical Prospecting for Kimberlite in the Colorado Wyoming State Line District.	Geological Society of America (GSA), Vol. 11, No. 6, P. 279, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geochemistry
DS1975-1133 1979	Mccallum, M.E., Coopersmith, H.G.	Diamonds from Kimberlite in the Colorado-Wyoming State Linedistrict.	International Kimberlite Conference SECOND, PP. 42-58.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Diatreme
DS1975-0335 1976	Mccallum, M.E., Eggler, D.H.	Diamonds in an An Upper Mantle Peridotite Nodule from Kimberlite in Southern Wyoming.	Science., Vol. 192, No. 4236, PP. 253-256.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0561 1977	Mccallum, M.E., Eggler, D.H.	Field Guide for the Sloan and Nix Kimberlites in the Southern Portion of the Colorado-Wyoming State Line Kimberlite District #2	International Kimberlite Conference SECOND, FIELD GUIDE TRIP No. 4, PP. 182-209.	United States, State Line, Colorado, Wyoming, Rocky Mountains	Kimberley, Distribution
DS1975-1134 1979	Mccallum, M.E., Eggler, D.H.	Field Guide for the Sloan and Nix Kimberlites in the Southern Portion of the Colorado-Wyoming State Line Kimberlite District #1	Unknown, PP. 181-209.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0131 1975	Mccallum, M.E., Eggler, D.H., Burns, L.K.	Kimberlitic Diatremes in Northern Colorado and Southern Wyoming #2	Physics and Chemistry of the Earth, Vol. 9, PP. 149-161.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0562 1977	Mccallum, M.E., Eggler, D.H., Coopersmith, H.G., Smith, C.B.M.	Colorado-Wyoming State Line District	International Kimberlite Conference SECOND FIELD EXCURSION SEPT. 25-27TH., 25P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Kimberley, Guidebook
DS1975-0563 1977	Mccallum, M.E., Eggler, D.H., Smith, C.B.	Discrete Nodule Assemblages in Kimberlites from Northern Colorado and Southern Wyoming.	International Kimberlite Conference SECOND EXTENDED ABSTRACT VOLUME.,	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0336 1976	Mccallum, M.E., Hedge, C.E.	Rubidium-strontium Ages of Granitic Rocks in the Rawah Batholith, medicine Bow Mountains, Northern Colorado.	Isochron West., No. 17, PP. 33-37.	United States, State Line, Colorado, Wyoming	Geochronology, Batholites
DS1975-1135 1979	Mccallum, M.E., Kirkley, M.B., Padgett, J.L., Eggler, D.H.	Textural and Mineral Compositional Ranges of Ultramafic Nodules from Kimberlites of Northern Colorado and Southern Wyoming #2	Kimberlite Symposium Ii, Cambridge, England., PP. 1-5.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1136 1979	Mccallum, M.E., Kirkley, M.B., Padgett, J.P.	Compositional and Textural Ranges of Peridotite Nodules From Kimberlites of the Colorado-Wyoming State Line District.	Geological Society of America (GSA), Vol. 11, No. 6, P. 279, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0564 1977	Mccallum, M.E., Kirkley, M.B., Padgett, J.P., Eggler, D.H.	Textural and Mineral Compositional Ranges of Ultramafic Nodules from Kimberlites of Northern Colorado and Southern Wyoming #1	International Kimberlite Conference SECOND EXTENDED ABSTRACT VOLUME.,	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0337 1976	Mccallum, M.E., Mabarak, C.D.	Diamond in Kimberlitic Diatremes of Northern Colorado	Geology, Vol. 4, PP. 467-469.	United States, Colorado, State Line, Rocky Mountains	Kimberlite, State Line, Rocky Mountains
DS1975-0338 1976	Mccallum, M.E., Mabarak, C.D.	Diamond in State Line Kimberlite Diatremes Albany County, Wyoming and Larimer County, Colorado.	Wyoming Geological Survey Report Inv., No. 12, 36P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Prospecting, Genesis, Distribution, Petrography, Mineralogy
DS1975-0339 1976	Mccallum, M.E., Mabarak, C.D.	Diamond from Kimberlite Diatremes in Northern Colorado and Southern Wyoming.	Geological Society of America (GSA), Vol. 8, No. 5, P. 609. (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0565 1977	Mccallum, M.E., Mabarak, C.D., Coopersmith, H.G.	Diamonds from Kimberlite in the Colorado Wyoming State Linedistrict.	International Kimberlite Conference SECOND EXTENDED ABSTRACT VOLUME.,	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1137 1979	Mccallum, M.E., Mabarak, C.D., Coopersmith, H.G.	Diamonds from Kimberlites in the Colorado Wyoming State Line District.	International Kimberlite Conference SECOND Proceedings, Vol. 1, PP. 42-53.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0566 1977	Mccallum, M.E., Naeser, C.W.	Fission Track Ages of Tertiary Intrusive Rocks in the Manhattan Mining District, Northern Front Range Colorado.	Isochron West., No. 18, PP. 1-4.	United States, Colorado, State Line, Rocky Mountains	Blank
DS1975-0804 1978	Mccallum, M.E., Smith, C.B.	Minor and Trace Element Contents of Kimberlite of the Frontrange, Colorado and Wyoming.	United States Geological Survey (USGS) OPEN FILE Report, No. 78-1011, 23P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0132 1975	Mccallum, M.E., Smith, C.B., Burns, L.K., Eggler, D.H., Braddoc.	Kimberlite Diatremes and Others Iron Mountain Area, Laramierange, Wyoming.	Geological Society of America (GSA), Vol. 7, No. 5, P. 628 (abstract.).	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0341 1976	Mccallum, M.E., Woolsey, T.S., Schumm, S.A.	A Fluidized Mechanism for Subsidence of Bedded Tuffs in Diatremes and Related Volcanic Vents.	Bulletin. VOLCANOLOGIQUE., Vol. 39, No. 4, PP. 512-527.	United States, Colorado Plateau, State Line, Rocky Mountains	Blank
DS1975-1138 1979	Mccormick, G., Heathcote, R.	Mineralogy of the Morrilton Alvikite Dike, Conway County, Arkansas	Geological Society of America (GSA), Vol. 11, P. 163. (abstract.).	United States, Gulf Coast, Arkansas, Conway County	Blank
DS1975-1145 1979	Mcgetchin, T.R.	Yet Another Archean Province? the Lower Crust As Revealed By Xenoliths in Kimberlites.	Workshop On Ancient Crusts of The Terrestrial Planets, Edite, LPI CONTRIB. No. 371, PP. 53-55.	United States	Kimberlite, Genesis
DS1975-0808 1978	Mchone, J.G.	Lamprophyre Dikes of New England	Ph. D. Thesis, University North Carolina At Chapel Hill,	United States, Appalachia	Lamprophyres
DS1975-0135 1975	Melton, C.E., Giardini, A.A.	Experimental Results and a Theoretical Interpretation of Gaseous Inclusions Found in Arkansaw Natural Diamonds.	American Mineralogist., Vol. 60, PP. 413-417.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineral Chemistry
DS1975-0346 1976	Meyer, H.O.A.	Kimberlites of the United States: a Review	Journal of GEOLOGY, Vol. 84, No. 4, PP. 377-403.	United States, Gulf Coast, Arkansas, Appalachia, Great Lakes, Central States	Kimberlite, Geology
DS1975-0348 1976	Meyer, H.O.A., Brookins, D.G.	Occurrence of Kimberlites in the United States	Eos, Vol. 57, No. 10, P. 761. (abstract.).	United States, Appalachia, Central States, Gulf Coast, Rocky Mountains	Blank
DS1975-0571 1977	Meyer, H.O.A., Kridelbaugh, S.J.	Green Mountain Kimberlite, Colorado: Mineralogy and Petrolog	International Kimberlite Conference SECOND, EXTENDED ABSTRACT VOLUME., 3P.	United States, Colorado, Rocky Mountains, Vermont	Blank
DS1975-0572 1977	Meyer, H.O.A., Lewis, R.D., Bolivar, S.L., Brookins, D.G.	Prairie Creek Kimberlite, Mufreesboro Pike County, Arkansaw	International Kimberlite Conference SECOND, FIELD GUIDE., 14P.	United States, Gulf Coast, Arkansas, Pennsylvania	Petrography, Mineral Chemistry
DS1975-0816 1978	Morel, J.A.	A Paleomagnetic Investigation of the Lake Owens Complex, Medicine Bow Mountains, Wyoming.	Ph.d. Thesis, University Wyoming, 73P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DS1975-0817 1978	Morrison, L.M.	Crater of Diamonds a Short History: 1906-1978	Lapidary Journal, Vol. 32, No. 5, P. 1064; P. 1066; P. 1068; P. 1070; P. 1072.	United States, Gulf Coast, Arkansas, Pennsylvania	History
DS1975-0820 1978	Motts, L.V.	Origin of the Uraniferous Phosphatic Zones of the Wilkins Peak Member, Green River Formation, Wyoming.	Msc. Thesis, University Wyoming, 114P.	United States, Wyoming, Rocky Mountains, Leucite Hills	Regional Studies
DS1975-0583 1977	Naeser, C.W., Mccallum, M.E.	Fission Track Dating of Kimberlitic Zircons	International Kimberlite Conference SECOND EXTENDED ABSTRACT VOLUME.,	United States, State Line, Rocky Mountains	Isotope
DS1975-0823 1978	Nassau, K., Nassau, J.	The History and Present Status of Synthetic Diamond. Part Ii	Lapidary Journal, Vol. 32, No. 2, MAY PP. 490-508.	United States	Synthetic Diamonds
DS1975-0367 1976	Nesbitt, B.E.	Fluid and Magmatic Inclusions in the Carbonatite at Magnet Cove, arkansaw.	Msc. Thesis, University Michigan.,	United States, Gulf Coast, Arkansas, Hot Spring County	Geochemistry, Mineral Chemistry
DS1975-0586 1977	Nesbitt, B.E., Kelly, W.C.	Magmatic and Hydrothermal Inclusions in Carbonatite of the Magnet Cove Complex, Arkansaw.	Contributions to Mineralogy and Petrology, Vol. 63, No. 3, PP. 271-294.	United States, Gulf Coast, Arkansas, Hot Spring County	Petrology, Mineral Chemistry
DS1975-0587 1977	Nesse, W.D.	Geology and Metamorphic Petrology of the Pingree Park Area Northeast Front Range, Colorado.	Ph.d. Thesis, University Colorado, 190P.	United States, Colorado, Rocky Mountains, Larimer County	Regional Studies
DS1975-0588 1977	Newton, M.G., Melton, C.E., Giardini, A.A.	Mineral Inclusion in an Arkansaw Diamond	American Mineralogist., Vol. 62, No. 5-6, PP. 583-586.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineralogy, Murfreesboro
DS1975-1172 1979	Pantaleo, N.S., Newton, G.S., Gogineni, S.V., Melton, C.E.	Mineral Inclusions in Four Arkansaw Diamonds: Their Nature And Significance.	American Mineralogist., Vol. 64, No. 9-10, PP. 1059-1062.	United States, Gulf Coast, Arkansas, Pennsylvania	Mineralogy, Mineral Chemistry
DS1975-0382 1976	Pinckney, D.M.	Mineral Resources of the Illinois Kentucky Mining District	United States Geological Survey (USGS) PROF. PAPER., No. 970, 15P.	United States, Illinois, Kentucky, Appalachia	Diatreme, Rare Earth Elements (ree) Analyses
DS1975-0395 1976	Robison, E.C.	Geochemistry of Lamprophyric Rocks of the Eastern Ouachita Mountains, Arkansaw.	Msc. Thesis, University Arkansaw, 147P.	United States, Oklahoma, Arkansas	Geochemistry
DS1975-0604 1977	Robison, E.C., Steele, K.F., Jackson, K.C.	Geochemistry of Lamprophyric Rocks, Eastern Ouachita Mountains, Arkansaw.	Geological Society of America (GSA), Vol. 9, No. 1, PP. 69-70.	United States, Oklahoma, Gulf Coast, Arkansas, Garland County	Petrology, Geochemistry
DS1975-0606 1977	Roden, M.F.	Field Geology and Petrology of the Minette Diatreme at Buell Park Apache County, Arizona. #2	Msc. Thesis, University Texas, Austin.,	United States, Colorado Plateau, Arizona	Lamprophyres
DS1975-0852 1978	Roden, M.F.	Trace Element Geochemistry of Mafic and Felsic Minettes, Buell Park Diatreme, Navajo Volcanic Field.	Geological Society of America (GSA), Vol. 10, No. 7, P. 480. (abstract.).	United States, Arizona, Colorado Plateau	Blank
DS1975-0400 1976	Saunders, D.F.	Regional line manets on Stellite Imagery - their Origin and Applications	Proceedings Second International Conference Basement Tectonics, pp. 326-52.	United States, Canada	Remote Sensing - Lineaments, Structure
DS1975-0611 1977	Schulze, D.J.	Garnet Pyroxenites and Partially Melted Metamorphic Eclogites from the Sullivan Buttes Latite Xenolith Suite, Chino Valley, Arizona.	Msc. Thesis, Queen's University,	United States, Colorado Plateau, Arizona	Xenoliths
DS1975-0862 1978	Schulze, D.J., Helmstaedt, H., Cassie, R.M.	Pyroxene Ilmenite Intergrowths in Garnet Pyroxenite Xenoliths from a New York Kimberlite and Arizona Latite.	American Mineralogist., Vol. 63, PP. 258-265.	United States, Appalachia, New York, Arizona, Colorado Plateau, Rocky Mountains	Petrography
DS1975-0615 1977	Scott, E.C.	Plum Creek Gems	Rockhound., Vol. 6, No. 9-10, SEPT. Oct. PP. 48-49.	United States, Appalachia	Blank
DS1975-0187 1975	Shimizu, N.	Rare Earth Elements in Garnets and Clinopyroxenes from Garnet Lherzolite Nodules in Kimberlites.	Earth Planet. Sci. Letters, Vol. 25, PP. 26-32.	United States, Hawaii	Blank
DS1975-0866 1978	Shimizu, N., Allegre, C.J.	Geochemistry of Transition Elements in Garnet Lherzolite Nodules in Kimberlites.	Contributions to Mineralogy and Petrology, Vol. 67, No. 1, PP. 41-50.	United States, Hawaii	Blank
DM1975-1355 1978	Silvers, A.	When Eagle Pinned Hope on Diamonds	The Milwaukee Journal, Nov. 9TH. ACCENT SECTION, P. 1, P. 10.	United States, Great Lakes	Diamond Occurrence
DS1975-0411 1976	Sinkankas, J.	A Bibliography of North American Gemstone Literature	Seperately Printed From Volume 2, Gemstones of North America, PP. 374-479.	United States, Central States, West Coast, Rocky Mountains, Appalachia	Bibliography, Diamond Occurrence
DS1975-0412 1976	Sinkankas, J.	Gemstones of North America. #2	New York: Van Nostrand., 494P.	United States, Great Lakes	Diamond Occurrence
DS1975-0413 1976	Sinkankas, J.	Diamonds in Arkansaw and Louisiana	In: Gemstones of North America., Vol. 2, PP. 2-5.	United States, Gulf Coast, Arkansas, Louisiana	Diamond Occurrence, Catalogue
DS1975-0623 1977	Smith, C.B.	Kimberlite with Carbonatitic Affinities at Iron Mountain Wyoming.	Geological Society of America (GSA), Vol. 9, No. 9, P. 763, (abstract.).	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1221 1979	Smith, C.B.	Rubidium-strontium Mica Ages of Various Kimberlites	Kimberlite Symposium, Held Cambridge England., PP. 61-66.	United States, State Line, Colorado, Wyoming	Geochronology
DS1975-1222 1979	Smith, C.B.	Rubidium-strontium (rb-sr) Mica Ages of Various Kimberlites	Kimberlite Symposium Ii, Cambridge, England., PP. 61-64.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0624 1977	Smith, C.B., Mccallum, M.E., Coopersmith, H.G., Eggler, D.H.	Petrography, Petrology and Chemistry of Kimberlite from The colorado-wyoming State Line and Iron Mountain Wyoming Districts.	International Kimberlite Conference SECOND, EXTENDED ABSTRACT VOLUME.,	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-1223 1979	Smith, C.B., Mccallum, M.E., Coopersmith, H.G., Eggler, D.H.	Petrochemistry and Structure of Kimberlites in the Front Range and Laramie Range Colorado-wyoming.	International Kimberlite Conference SECOND Proceedings, Vol. 1, PP. 178-189.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0414 1976	Smith, C.B., Mccallum, M.E., Eggler, D.H.	Clinopyroxene Ilmenite Intergrowths from the Iron Mountain kimberlite District, Wyoming.	Carnegie Institute Yearbook, FOR 1975 PP. 542-544.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0415 1976	Smith, C.B., Mccallum, M.E., Eggler, D.H.	Peridotite and Clinopyroxene Ilmenite Nodules from a Pipe In the Iron Mountain, Wyoming Kimberlite District.	Geological Society of America (GSA), Vol. 8, No. 5, P. 631. (abstract.).	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1975-0417 1976	Smith, D., Aoki, K.	Discussion and Reply: Titanochondrodite and Ititanoclino- Chiminite Derived from Upper Mantle in the Buell Park Kimberlite, Arizona.	Contributions to Mineralogy and Petrology, Vol. 61, No. 2, PP. 213-215.	United States, Arizona, Colorado Plateau	Blank
DS1975-0188 1975	Smith, J.V.	Relative Abundance, Compositions and P-t Histories of Ultramafic Xenoliths, Green Knobs, New Mexico and Implications For the Mantle Below the Colorado Plateau.	Geological Society of America (GSA), Vol.7, No. 7, P. 1275.	United States, New Mexico, Colorado Plateau	Blank
DS1975-1228 1979	Smurthwaite, D.	Diamond Craters: Oregon's Geologic Gem	Our Public Lands, Vol. 29, No. 4, PP. 12-15.	United States, Oregon, Rocky Mountains	Blank
DS1975-1232 1979	Steele, K.F., Jackson, K.C., Van buren, W.	Geochemical Comparison of Arkansaw Syenite	Geological Society of America (GSA), Vol. 11, No. 2, P. 166. (abstract.).	United States, Gulf Coast, Arkansas, Garland County, Hot Spring County	Magnet Cove, Potash Sulfur Springs, Geochemistry
DS1975-0420 1976	Steele, K.F., Robison, E.C.	Chemical Relationships of Lamprophyre, Central Arkansaw	Eos, Vol. 57, P. 1018. (abstract.).	United States, Gulf Coast, Arkansas	Geochemistry
DS1975-0630 1977	Steele, K.F., Robison, E.C.	Chemical Weathering of Lamprophyric Rock, Central Arkansaw	Arkansaw Academy of Science Proceedings, Vol. 31, PP. 119-121.	United States, Gulf Coast, Arkansas	Petrology, Geomorphology
DS1975-1233 1979	Steele, K.F., Wagner, G.H.	Relationship of the Murfreesboro Kimberlite and Other Igneous Rocks of Arkansaw.	International Kimberlite Conference SECOND Proceedings, Vol. 1, PP. 393-399.	United States, Gulf Coast, Arkansas, Pennsylvania, Oklahoma	Petrology
DS1975-0633 1977	Stover, C.W.	Seismicity Map of the Conterminous United States and Adjacent Areas, 1965-1974.	United States Geological Survey (USGS) MAP, No. MF 812, 1:5, 000, 000.	United States	Mid Continent
DS1975-0880 1978	Sykes, L.R.	Intraplate Seismicity, Reactivation of Preexisting Zones Ofweakness, Alkaline Magmatism and Other Tectonism Postdatingcontinental Fragmentation.	Rev. Geophysics Space Physics, Vol. 16, No. 4, NOVEMBER PP. 621-688.	United States, West Africa, Brazil, Africa	Geotectonics, Geophysics
DS1975-0201 1975	Tillander, H.	The Hope Diamond and Its Lineage	Helsinki:,	United States	Kimberlite, Kimberley, Janlib, Diamond
DS1975-0642 1977	Towner, P.	Gems Found in Unusual Places	Lapidary Journal, Vol. 31, No. 2, PP. 652-653.	United States	Diamond
DS1975-1254 1979	Viele, G.W.	Geological Map and Cross Section, Eastern Ouachita Mountains,arkansaw.	Geological Society of America., No. MC 28F, 7P.	United States, Oklahoma, Arkansas	Blank
DS1975-0888 1978	Wagner, G.H., Honig, R.H., Jones, M.D.	Geochemistry of a Carbonatite in Montgomery County, Arkansaw	Arkansaw Academy of Science Proceedings, Vol. 32, PP. 93-94.	United States, Gulf Coast, Arkansas, Pennsylvania	Geochemistry
DS1975-0647 1977	Wagner, G.H., Steele, K.F.	The Chemical Composition of Carbonatite in Conway and Perry counties of Arkansaw.	Arkansaw Academy of Science Proceedings, Vol. 31, PP. 121-123.	United States, Gulf Coast, Arkansas, Conway County, Pennsylvania	Petrology
DS1975-1259 1979	Watson, K.D.	Kimberlites of Eastern North America (1979)	Kreiger Publishing, PP. 312-323.	United States, Gulf Coast, Arkansas, Appalachia, Kentucky, New York, Pennsylvania	Geochemistry, Tectonics, Genesis
DS1975-0434 1976	Wilkinson, J.F.G.	Some Subcalcic Clinopyroxenites from Salt Lake Crater, Oahuand Their Petrogenetic Significance.	Contributions to Mineralogy and Petrology BEIT. MIN. PETROL., Vol. 58, No. 2, PP. 181-201.	United States, Hawaii	Blank
DS1975-0436 1976	Witkind, I.J.	Geologic Map of the Southern Part of the Upper Red Rock Lake Quadrangle, South Western and Adjacent Idaho.	United States Geological Survey (USGS) MAP, miscellaneous G.I. I-943 SEE ALSO I-890.	Montana, Idaho, United States, Rocky Mountains	Diatreme
DS1975-0213 1975	Woolsey, T.S., Mccallum, M.E., Schumm, S.A.	Modeling of Diatreme Emplacement by Fluidization	Physics and Chemistry of the Earth, Vol. 9, PP. 29-42.	United States	Breccia
DS1975-0657 1977	Zartman, R.E.	Geochronology of Some Alkalic Rock Provinces in Eastern And central United States.	Annual Review of Earth and Planetary Science, Vol. 5, PP. 257-386.	United States, Gulf Coast, Arkansas, Appalachia, Kentucky	Geochronology, Related Rocks, Kimberlite
DS1975-1270 1979	Zirlin, S.H.	Something Called the Herkimer Diamond	Rockhunter., Vol. 12, No. 4, PP. 24-25.	United States, Appalachia, New York	Herkimer Diamonds
DS1980-0036 1980	Anon.	Mining Giant Enters Diamond Hunt, Anaconda Buying Area Mineral Rights.	The Nashville News, AUGUST 9TH. No. 64, P. 1; P. 5.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1980-0040 1980	Arima, M., Edgar, A.D.	Stability of Wadeite (zr2 K4si6o18) Under Upper Mantle Conditions: Petrological Implications.	Contributions to Mineralogy and Petrology, Vol. 72, PP. 191-195.	United States, Wyoming, Australia	Leucite
DS1980-0041 1980	Armbrustmacher, T.J.	Major and Minor Element Distribution in Alkaline Rock Complexes of the Wet Mountains Area, Custer and Fremont Counties, colorado.	Geological Society of America (GSA), Vol. 12, No. 6, MARCH P. 266.	United States, Colorado, Rocky Mountains, Mcclure Mountains, Gem Park	Blank
DS1980-0054 1980	Basu, A.R., Rubury, E.	Tectonic Significance of Kimberlite Dikes in Central New Yor	Geological Society of America (GSA), Vol. 12, No. 1, P. 23, (abstract.).	United States, Appalachia, New York	Kimberlite, Geochemistry, Analyses, Geochronology, Tectonics
DS1980-0055 1980	Basu, A.R., Tatsumoto, M.	Nd-isotopes in Selected Mantle-derived Rocks and Minerals And Their Implications for Mantle Evolution.	Contr. Min. Petrol., Vol. 75, PP. 43-54.	South Africa, Lesotho, United States, Gulf Coast, Arkansas, Hot Spring County	Kimberlite, Alnoite, Carbonatite, Pyroxene, Inclusions, Xenolith
DS1980-0065 1980	Blair, G.	Diamonds of the Wyoming Outback	Lapidary Journal, Vol. 34, No. 2, PP. 496-498.	United States, Wyoming, Colorado Plateau, State Line, Rocky Mountains	Prospecting
DS1980-0096 1980	Crough, S.T., Morgan, W.J., Hargraves, R.B.	Kimberlites: their Relation to Mantle Hotspots	Earth and Planetary Science Letters, Vol. 50, PP. 260-274.	South Africa, United States, Appalachia, New York	Tectonics, Genesis
DS1980-0097 1980	Cundari, A.	Role of Subduction in the Genesis of Leucite Bearing Rocks:discussion.	Contributions to Mineralogy and Petrology, Vol. 73, No. 4, PP. 432-434.	Italy, Indonesia, United States, Wyoming, Rocky Mountains, Leucite Hills	Leucite, Genesis
DS1980-0109 1980	Delaney, P.T.	Magma Flow, Heat Transport and Brecciation of Host Rocks During Dike Emplacement.	Ph.d. Thesis, Stanford University,	United States, New Mexico, Colorado Plateau	Diatreme Formation, Emplacement
DS1980-0115 1980	Edgar, A.D.	Role of Subduction in the Genesis of Leucite Bearing Rocks:facts or Fashion.	Contributions to Mineralogy and Petrology, Vol. 73, No. 4, PP. 429-431.	United States, Wyoming, Italy, Indonesia, Rocky Mountains, Leucite Hills	Blank
DS1980-0117 1980	Ehrenberg, S.N., Ahmad, S.N., Perry, E.C.JR.	Oxygen Isotopic Compositions of Garnet Granulites from Colorado Plateau Diatremes.	Eos, Vol. 61, No. 17, APRIL 22ND. P. 387.	United States, Colorado Plateau	Blank
DS1980-0118 1980	Ehrenburg, S.N.	rare earth elements (REE) GEOCHEMISTRY of GARNET PERIDOTITE XENOLITHS from the COLORADO PLATEAU.	Eos, Vol. 61, No. 48, P. 1192. (abstract.).	United States, Colorado Plateau	Blank
DS1980-0131 1980	Frishman, D.	High and Low Temperature Mineral Assemblages in the Josephin	Ph.d. Thesis, University California., 356P.	United States, California, West Coast	Regional Studies
DS1980-0137 1980	Garrison, J.R.Jr., Taylor, L.A.	Megacrysts and Xenoliths in Kimberlite-elliott County, Kentucky.	Contributions to Mineralogy and Petrology, Vol. 75, PP. 27-42.	United States, Appalachia, Kentucky	Petrography, Crustal Xenoliths
DS1980-0138 1980	Garrison, J.R.Jr., Taylor, L.A.	Oxide-pyroxene Intergrowths from Kimberlite and Cumulate Rocks Co- Precipitation or Exsolution?	Geological Society of America (GSA), Vol. 12, No. 7, P. 431. (abstract.).	United States, Appalachia, Kentucky	Xenoliths, Petrography, Genesis
DS1980-0139 1980	Garrison, J.W., Garrison, J.R.JR., Taylor, L.A.	Kimberlite Metasomatism; Wall Rock Alterations from a Hot Intrusive at Elliott County, Kentucky.	Eos, Vol. 61, No. 46, P. 1156. (abstract.).	United States, Central States, Kentucky	Alteration
DS1980-0145 1980	Gray, F.	Lherzolite and Wehrlitic Rock Series at Tincup Peak, Klamath Mountains, S.w. Oregon.	Geological Society of America (GSA), Vol. 12, No. 3, P. 108. (abstract.).	United States, Oregon, Rocky Mountains	Blank
DS1980-0148 1980	Green, H.W., Gueguen, Y.	Deformation of Peridotite in the Mantle and Extraction by Kimberlite.	Eos, Vol. 61, No. 46, P. 1156. (abstract.).	United States, Colorado Plateau	Blank
DS1980-0158 1980	Hanson, C.G.	Geochemical and Mineralogical Investigations of Methods For detecting Kimberlites in the Area of the Stockdale Kimberlite, Riley County, Kansas.	Msc. Thesis, Penn. State University, 116P.	United States, Kansas, Central States	Prospecting
DS1980-0160 1980	Harnish, A.	Arkansaw Finds a 5.5 Carat Diamond	Murfreesboro Diamond., Oct. 30TH.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Diamond Notable
DS1980-0161 1980	Harnish, H.	Gems from the Diamond Mine. #2	Murfreesboro Diamond., Dec. 11TH. 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1980-0165 1980	Hausel, W.D., Glahn, P.R., Woodzick, T.L.	Exploration for Diamond Bearing Kimberlite in Colorado and Wyoming- an update.	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) REPRINT., No. 80-310, 4P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1980-0166 1980	Hausel, W.D., Mccallum, M.E.	General Review of Northern Colorado and Southeastern Wyoming Kimberlites ,diamonds and Related Research Activity.	Colorado Geological Survey, No. 8, PP. 106-115.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1980-0168 1980	Hearn, B.C.JR.	Geology of the Williams Kimberlite Diatremes, North Centralmontana.	Geological Society of America (GSA), Vol. 12, No. 6, MARCH P. 274. (abstract.).	United States, Montana, Rocky Mountains	Blank
DS1980-0173 1980	Heusser, G.	Hunting Cape May Diamonds	Lapidary Journal, Vol. 34, No. 7, PP. 1538-1539.	United States, Appalachia, New York	Herkimer Diamonds
DS1980-0181 1980	Irving, A.J.	Petrology and Geochemistry of Composite Ultramafic Xenoliths in Alkalic Basalts and Implications for Magmatic Processes within the Mantle.	American Journal of Science, Vol. 280A, PP. 389-426.	United States, Arizona, New Mexico, Kilbourne Hole, Colorado Plateau	Blank
DS1980-0187 1980	Kay, S.M., Kay, R.W.	Petrology and Chemistry of the Lower Crust from Xenoliths	Proceedings of the 26th International Geological Congress, Vol. 1, P. 56, (abstract.).	United States, Wyoming, Rocky Mountains, Leucite Hills	Blank
DS1980-0190 1980	Kirkley, M.B.	Peridotite Xenoliths in Colorado Wyoming Kimberlites	Msc. Thesis, Colorado State University,	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1980-0191 1980	Kirkley, M.B., Mccallum, M.E., Eggler, D.H.	Mineral Chemistry and Textural Correlations in Peridotite Nodules from Northern Colorado-southern Wyoming Kimberlites.	Geological Society of America (GSA), Vol. 12, No. 6, P. 276, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1980-0202 1980	Kuehner, S.	Petrogenesis of Ultrapotassic Rocks of the Leucite Hills, Wyoming.	Msc. Thesis, University Western Ontario,	United States, Wyoming, Rocky Mountains	Lamproite, Leucite
DS1980-0203 1980	Kuehner, S.M., Edgar, A.D., Arima, M.	Origin of the Ultrapotassic Rocks from the Leucite Hills, Wyoming.	Geological Society of America (GSA), Vol. 12, No. 7, P. 467. (abstract.).	United States, Wyoming, Rocky Mountains, Leucite Hills	Leucite Hills, Leucite, Rocky Mountains
DS1980-0223 1980	Mansker, W., Keil, K., Husler, J.	A Petrologic Comparison of Olivine Nephelinites and Olivineme lilite Nephelinites: Implications Regarding Nepheline Evolution.	Geological Society of America (GSA), Vol. 12, No. 7, P. 475, (abstract.).	United States, Hawaii	Blank
DS1980-0227 1980	Mccallum, M.E., Ater, P.C., Eggler, D.H., Smith, C.B., Shannon.	Mantle Eclogite Nodules from Northern Colorado and Southernwyoming.	Geological Society of America (GSA), Vol. 12, No. 3, P. 280, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1980-0233 1980	Melton, C.E., Giardini, A.A.	The Isotopic Composition of Argon Included in an Arkansaw Diamond and its Significance.	Geophysical Research. LETTERS, Vol. 7, No. 6, PP. 461-464.	United States, Gulf Coast, Arkansas, Pennsylvania	Isotope, Inclusion, Mineral Chemistry
DS1980-0236 1980	Miller, D.N.JR.	Thirty Ninth Biennial Report of the State Geologist for 1979-1980. Report on Cominco Diamond Testing.	Wyoming Geological Survey, P. 4.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1980-0256 1980	Nishimori, R.K., Powell, J.D.	Uranium in Carbonatites, United States (us) Final Report	N.u.r.e. Report, No. GJBX 147-80, 180P.	United States, Gulf Coast, Arkansas, Hot Spring County	Magnet Cove Discussed
DS1980-0300 1980	Sculley, F.X.	Hunting the Herkimer Diamond	Rockhound., Vol. 9, No. 1, FEBRUARY, PP. 18-19.	United States, Appalachia, New York	Non-diamond
DS1980-0313 1980	Smith, D., Hunter, W.C.	Garnet Xenocrysts in Ultramafic Diatremes on the Colorado Plateau: Reinterpretation Based upon Comparative Geothermometry and Mineral Zoning.	Eos, Vol. 61, No. 46, P. 1151. (abstract.).	United States, Colorado Plateau	Petrography
DS1980-0314 1980	Smith, D., Roden, M.F.	Geothermometry and Kinetics in a Two Spinel Peridotite Nodul	Eos, Vol. 61, No. 17, APRIL 22ND. P. 393.(abstract.).	United States, Colorado Plateau	Blank
DS1980-0315 1980	Smith, D., Roden, M.F.	Comparative Spinel Olivine Pyroxene equilibration temperatures in Mantle Peridotite, Southwestern Usa	International CONG. 26TH., Vol. 1, SECT. 1-5, P. 146. (abstract.).	United States, New Mexico, Arizona, Colorado Plateau	Blank
DS1980-0334 1980	Van kooten, G.K.	An Ultrapotassic Basaltic Suite from the Central Sierra Nevada, California: a Study of the Mineralogy, Petrology, Geochemistry and Isotopic Composition.	Ph.d. Thesis, University California, Santa Barbara., 100P.	United States, California, West Coast	Basanite, Whole Rock Geochemistry, Isotope, Geothermometry
DS1980-0346 1980	Wesnousky, S.G., Scholz, C.H.	The Craton: its Effect on the Distribution of Seismicity And Stress in North America.	Earth Planet. Sci. Letters, Vol. 48, PP. 348-355.	United States	Mid-continent
DS1980-0352 1980	Woods, C.L.	Update on the Crater of Diamonds State Park	Gems And Minerals, No. 507, PP. 58-59; P. 61.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. History, Production
DM1981-0484 1981	Anon.	Diamonds Are State's Good Friend	Arkansaw GAZETTE., APRIL 19TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DM1981-0485 1981	Anon.	Hands Off Crater of Diamonds	Arkansaw GAZETTE., OCTOBER 7TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0048 1981	Anon.	Sale of Industrial Diamonds	Skillings Mining Review., Oct. 3RD. P. 18.	United States	Blank
DS1981-0049 1981	Anon.	Fallen Diamonds	Geotimes, JULY, P. 30.	United States, Arizona	Canyon Diablo, Meteorite
DS1981-0050 1981	Anon.	People and Diamonds from Wyoming	Western Miner., Vol. 54, No. 9, PP. 72-73.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1981-0051 1981	Anon.	Anaconda's Proposal Turned Down	Engineering and Mining Journal, Vol. 181, P. 178.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Diamond, Prospecting
DS1981-0052 1981	Anon.	Second Largest Stone Discovered This Year, Crater of Diamond	Gems And Gemology, FALL, P. 180.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Diamonds Notable
DS1981-0053 1981	Anon.	Company Encouraged by Tests for Diamonds	The Arkansaw Gazette., Feb. 12TH.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Evaluation, Anaconda, Prospecting
DS1981-0054 1981	Anon.	Mining Offer Is Rejected	The Sentinel Record, Hot Springs, APRIL 17TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0055 1981	Anon.	Tourism Commission Rejects Mining Offer at Crater	Murfreesboro Diamond., APRIL 23RD. 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0056 1981	Anon.	Diamond Mining Sought by Firm	The Sentinel Record, Hot Springs, APRIL 3RD. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0057 1981	Anon.	Anaconda Seeks Mining Lease at State Park	Murfreesboro Diamond., APRIL 9TH. 4P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0058 1981	Anon.	Courthouse Records Show Interest in Exploring for Diamonds	Murfreesboro Diamond., JULY 22ND. 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0059 1981	Anon.	Cominco Diamond Testing	Mining Journal (London), Vol. 297, No. 7612, P. 27.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1981-0066 1981	Aoki, K.	Chemical Composition of Potassic Basaltic Rocks from the Colorado Plateau.	The Science Reports of The Tohoku University, 3rd. Series, M, Vol. 15, No. 1, PP. 133-135.	United States, Colorado Plateau	Geochemistry
DS1981-0067 1981	Arima, M., Edgar, A.D.	Substitution Mechanisms and Solubility of Titanium in Phlogopites from Rocks of Probable Mantle Origin.	Contributions to Mineralogy and Petrology, Vol. 77, PP. 288-295.	Australia, United States, Wyoming	Leucite
DS1981-0074 1981	Barnard, F.	Economic Potential of the Williams Kimberlite Pipe, Montana	Geological Society of America (GSA), Vol. 13, No. 4, P. 190, (abstract.).	United States, Montana, Rocky Mountains	Kimberlite, Rocky Mountains
DS1981-0076 1981	Bauer, E.C.	Letter to the Editor, Agreeing With Refusal of Mining Lease	Murfreesboro Diamond., AUGUST 6TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0082 1981	Bergman, S.C., Foland, K.A., Spera, F.J.	On the Origin of an Amphibole Rich Vein in a Peridotite Inclusion from the Lunar Crater Volcanic Fields, Nevada, United States (us)	Earth and Planetary Science Letters, Vol. 56, PP. 343-361.	United States, Nevada	Great Basin, Mineral Chemistry
DS1981-0097 1981	Bradley, S.D., Mccallum, M.E.	Lower Crustal Granulite Facies and Related Xenoliths from Colorado-Wyoming State Line Kimberlites.	Geological Society of America (GSA), Vol. 13, No. 4, P. 192, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1981-0106 1981	Burton, J.	If a Mineral Has Not Been Vigourously Sought It Is Not Logical to Argue that the Mineral Is Rare.	California The Mining Journal, Vol. 50, No. 10, PP. 4-7.	United States, California, Colorado, Wyoming, Rocky Mountains, West Coast	Blank
DM1981-0488 1981	Buss, D.D.	Industry Vies with Prospectors for Rights to Strike It Richat Crater of Diamonds.	The Wall Street Journal, AUGUST.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Prospecting, Investment, Anaconda
DS1981-0109 1981	Cannon, W.F., Mudrey, M.G.JR.	The Potential for Diamond Bearing Kimberlite in Northern Michigan and Wisconsin.	United States Geological Survey (USGS) Circular, No. 842, 15P.	United States, Michigan, Wisconsin, Great Lakes	History, Geology, Lake Ellen, Geomorphology, Tectonics, Geophysics
DS1981-0125 1981	Crough, S.T.	Mesozoic Hotspot Epeirogeny in Eastern North America	Geology, Vol. 9, PP. 2-6.	United States, Appalachia, New York	Origin, Geotectonics
DS1981-0126 1981	Cullers, R.L., Mullenax, J.	Petrogenesis of the Bala and Leonardville Kimberlites, Riley County, Kansas.	Geological Society of America (GSA), Vol. 13, No. 6, P. 275, (abstract.).	United States, Kansas, Central States	Blank
DS1981-0129 1981	Davies, A.J.	Arkansaw DIAMOND LAKES COUNTRY- a ROCKHOUND'S END of the RAINBOW.	Lapidary Journal, APRIL, PP. 428-432.	United States, Gulf Coast, Arkansas, Pennsylvania	Guidebook, Mineralogy
DS1981-0135 1981	Delaney, P.T., Pollard, D.D.	Deformation of Host Rocks and Flow of Magma During Growth Of Minette Dikes and Breccia- Bearing Intrusions Near Ship Rock, New Mexico.	United States Geological Survey (USGS) PROF. PAPER., No. 1202, 61P.	United States, New Mexico, Colorado Plateau	Kimberlite, Diatreme, Colorado Plateau, Rocky Mountains
DS1981-0137 1981	Depaolo, D.J.	Neodymium Isotopes in the Colorado Front Range and Crust Mantle Evolution in the Proterozoic.	Nature., Vol. 291, No. 5812, PP. 193-196.	United States, Colorado, Wyoming, Rocky Mountains	Geochronology
DS1981-0146 1981	Edick, M.J., Byerly, G.R.	Post Paleozoic Igneous Activity in the Southeastern United States.	Geological Society of America (GSA), Vol. 13, No. 5, P. 236. (abstract.).	United States, Gulf Coast, Arkansas	Petrology
DS1981-0147 1981	Edwards, J.S.	The Petrology and Contact Relationships of the Southwestern portion of the Precambrian Mullen Creek Mafic Complex Medicine Bow Mountains, wyoming.	Geological Society of America (GSA), Vol. 13, No. 4, P. 195, (abstract.).	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Blank
DS1981-0172 1981	Garrison, J.R.Jr.	Mineralogy and Petrology of Hydrous Groundmass Minerals And altered Crustal Clasts in Kimberlite, Elliott County, Kentucky.	Msc. Thesis, University Tennessee, Knoxville.,	United States, Kentucky, Appalachia	Kimberlite, Mineralogy, Petrology
DS1981-0173 1981	Garrison, J.R.Jr., Taylor, L.A.	Petrogenesis of Pyroxene Oxide Intergrowths from Kimberlite and Cumulate Rock; Co-precipitation or Exsolution?	American Mineralogist., Vol. 66, No. 7-8, PP. 723-740.	United States, Kentucky, South Carolina, Pennsylvania	Blank
DS1981-0184 1981	Gomes, J.M., Martinez, G.M.	Recovery of Gold and Other Heavy Minerals from Alluvial Deposits: Equipment and Practices.	Reno Research Center, United States Bureau of Mines, 22P.	United States, California, Oregon, Nevada, West Coast, Rocky Mountains	Diamonds, Techniques, Sampling, Mineral Processing
DM1981-0492 1981	Griffee, C.	Geologist Hits Refusal to Lease Diamond Area	Arkansaw GAZETTE., MAY 1ST. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0201 1981	Harley, S.L.	Petrogenesis of Eclogite Inclusions in the Moses Rock Dyke, utah, United States (us)	Tschermaks Mineralogische und Petrographische Mitteilungen MITTEILUNGEN., Vol. 28, No. 2, PP. 131-155.	United States, Utah, Colorado Plateau	Blank
DS1981-0202 1981	Harnish, A.	Gems from the Diamond Mine. #1	Murfreesboro Diamond., Jan. 15TH.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Production Statistics
DS1981-0203 1981	Harnish, H.	Gems from the Diamond Mine. #3	Murfreesboro Diamond., APRIL 16TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0206 1981	Hausel, W.D.	Diamond Exploration in Colorado and Wyoming	Newsletter West Texas Geological Society, Vol. 21, P. 7, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1981-0207 1981	Hausel, W.D.	Notes on Diamond Discussions With J.d. Love and R.w. Marrs	Wyoming Geological Survey Unpub. Notes On Mineral Files, 1P.	United States, State Line, Colorado, Wyoming	Blank
DS1981-0208 1981	Hausel, W.D., Glahn, P.R., Woodzick, T.L.	Geological and Geophysical Investigations of Kimberlite in The Laramie Range of Southeastern Wyoming.	Wyoming Geological Survey Prelim. Report, No. 18, 13P.	United States, Wyoming, State Line, Rocky Mountains	Kimberlite, Geophysics, Geochemistry, Geology, Schaffer
DS1981-0209 1981	Hays, S.	Offer for Diamond Mine Is Rejected	The Arkansaw Gazette., APRIL 17TH.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Investment, Anaconda
DS1981-0210 1981	Hearn, B.C.JR.	Diamond Potential of Missouri Breaks Diatremes, Montana	United States Geological Survey (USGS) PROF. PAPER., No. 1175, P. 4, (abstract.).	United States, Montana, Rocky Mountains	Blank
DS1981-0211 1981	Hearn, B.C.JR., Mcgee, E.S.	Garnet Peridotites from the Williams Kimberlites, North Central Montana.	Geological Society of America (GSA), Vol. 13, No. 4, P. 199, (abstract.).	United States, Montana, Rocky Mountains	Blank
DS1981-0212 1981	Heasler, H.P.	A Summary of Geothermal Potential and Development in Wyoming	The Interstate Oil Compact Comm. Committee Bulletin., Vol. 23, No. 1, PP. 18-26.	United States, Wyoming, Rocky Mountains	Blank
DS1981-0213 1981	Heathcote, R.C., Owens, D.R.	Formation of Vanadium at Potash Sulfur Springs, Arkansaw	Geological Society of America (GSA), Vol. 13, No. 7, P. 470. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Vanadium
DS1981-0217 1981	Hudson, S.	Diamonds for the Taking at the Crater of Diamonds State Park	Lost Treasure., Vol. 6, No. 9, PP. 14-18.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Popular Account
DS1981-0218 1981	Hunter, R.H., Taylor, L.A.	Kimberlite from Southwest Pennsylvania: Unusual Mineral Composition Associated with Garnet Instability.	Eos, Vol. 62, P. 414, (abstract.).	United States, Pennsylvania, Appalachia	Mineral Chemistry
DS1981-0219 1981	Hunter, W.C., Smith, D.	Garnet Peridotite from Colorado Plateau Ultramafic Diatremes: Hydrates, Carbonates, and Comparative Geothermometry.	Contributions to Mineralogy and Petrology, Vol. 76, PP. 312-320.	United States, Colorado Plateau, New Mexico	Petrology, Analyses, Xenolith, Minette
DS1981-0229 1981	Kamara, A.Y.S.	Review: Geophysical Methods for Kimberlite Prospecting	Aust. Society of Exploration Geophysics Bulletin., Vol. 12, No. 3, PP. 43-51.	Sierra Leone, South Africa, Russia, Canada, United States, Lesotho, West Africa	Kimberlite, Geophysics
DS1981-0241 1981	Kissling, R.D., Hunter, R.H., Taylor, L.A.	A Petrological Assessment of the Oxide Phases from a Kimberlite in the Appalachian Plateau of Pennsylvania.	Eos, Vol. 62, P. 414, (abstract.).	United States, Pennsylvania, Appalachia	Blank
DS1981-0242 1981	Kissling, R.D., Taylor, L.A.	A Petrologic Sampling of the Mantle Beneath the Appalachianmountains: a Unique Experience.	Geological Society of America (GSA), Vol. 13, No. 1, P. 11. (abstract.).	United States, Appalachia, Pennsylvania	Kimberlite, Petrology
DS1981-0243 1981	Kisvarsanyi, E.B., Pratt, W.P., Heyl, A.V.	Fluorine-thorium Rare Earth Bearing Kimberlite Carbonatite Complexes	United States Geological Survey (USGS) OPEN FILE REPORT., No. 81-0518, PP. 35-40.	Missouri, United States, Central States	Blank
DS1981-0249 1981	Kothny, E.L.	Diamond Geochemistry	California Mining Journal, Vol. 51, No. 1, SEPTEMBER, PP. 4-6.	United States, California, West Coast	Blank
DS1981-0255 1981	Kuehner, S.M., Edgar, A.D., Arima, M.	Petrogenesis of the Ultrapotassic Rocks from the Leucite Hills, Wyoming.	American Mineralogist., Vol. 66, No. 7-8, PP. 663-677.	United States, Wyoming, Rocky Mountains, Leucite Hills	Blank
DS1981-0283 1981	Mariotti, P.A.	Vein Controlled Surf Induced Spheroidal Weathering in Harzburgite Presque Isle Marquette Michigan.	Geological Society of America (GSA), Vol. 13, No. 6, MARCH P. 288. (abstract.).	United States, Michigan, Great Lakes	Blank
DS1981-0292 1981	Mccallum, M.E.	Mineralogical and Textural Genetic Classification of Northern Colorado-southern Wyoming Kimberlites.	Geological Society of America (GSA), Vol. 13, No. 4, P. 219, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Genesis
DS1981-0297 1981	Mclemore, V.T.	Regional Implications of Carbonatites in the Lemitar Mountains, Socorro New Mexico.	Geological Society of America (GSA), Vol. 13, No. 7, P. 508. (abstract.).	United States, New Mexico	Related Rocks
DS1981-0303 1981	Mitchell, R.H., Keays, R.R.	Abundance and Distribution of Gold, Palladium and Iridium In	Geochimica et Cosmochimica Acta ., Vol. 45, PP. 2425-2442.	Australia, United States, New Mexico, Colorado Plateau, Lesotho	Basanite, Mineral Chemistry, Kimberlite
DS1981-0308 1981	Morse, L.	Murfreesboro Residents Fight Mineral Rights Deal	Arkansaw DEMOCRAT., APRIL 13TH. 3P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DM1981-0532 1981	Oswald, M.	Anaconda Seeking to Mine Diamonds at Murfreesboro	Arkansaw GAZETTE., APRIL 3RD. 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0329 1981	Papson, R.P.	Mineralogy and Geochemistry of Carbonatites from the Gem Park Complex, Fremont and Custer Counties, Colorado.	Fort Collins: Msc. Thesis, Colorado State University, 72P.	United States, Colorado, Rocky Mountains, Medicine Bow Mountains	Carbonatite
DS1981-0353 1981	Rogers, W.P.	Letter to the Editor in Favor of Underground Mine	Murfreesboro Diamond., JUNE 25TH, 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0354 1981	Ross, D.	Jots in Jewels	Murfreesboro Diamond., APRIL 9TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0357 1981	Rubury, E.A.	The Petrology of the Central New York ultra alkaline Dikes	Msc. Thesis, University Rochester.,	United States, Appalachia, New York	Petrology
DS1981-0378 1981	Simmons, B.	State Gets Bid to Allow Diamond Mine in Park	Arkansaw DEMOCRAT., APRIL 3RD. 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1981-0382 1981	Snedden, W.T., Kay, S.	Initial Stages of Kimberlite Eruption: Evidence from Mantle minerals in Ithaca Kimberlites.	Geological Society of America (GSA), Vol. 13, P. 557. (abstract.).	United States, Appalachia, New York	Genesis, Mineral Chemistry
DS1981-0383 1981	Snedden, W.T., Kay, S.	Mineral Chemistry of Kimberlite and Included Xenocrysts Ithaca, New York.	Geological Society of America (GSA), Vol. 13, No. 3, P. 178. (abstract.).	United States, Appalachia, New York	Geochemistry
DS1981-0413 1981	United States Bureau Of Mines	Diamond - Industrial	Mineral Facts and Problems, 1980 edition, Bulletin. 671, 14p.	United States	Diamond - Markets, Industry, Economics
DS1981-0428 1981	Wilcox, J.D., Young, J.	Arkansaw Incredible Diamond Mine Story	Specialty Printing Company, News Supplement.,	United States, Gulf Coast, Arkansas, Pennsylvania	History
DS1981-0433 1981	Woodzick, T.L.	Potential Application of Reflectance, Soil Temperature and Soil Moisture Date to Kimberlite Exploration Programs.	Geological Society of America (GSA), Vol. 13, No. 4, P. 230, (abstract.).	United States, State Line, Colorado Plateau, Wyoming, Rocky Mountains	Kimberlite, Geophysics
DS1982-0002 1982	Aines, R.D., Rossman, G.R.	The Hydrous Component in Garnets	Geological Society of America (GSA), Vol. 14, No. 7, P. 430, (abstract.).	Colorado Plateau, South Africa, United States, Rocky Mountains	Mineralogy
DM1982-0723 1982	Anon.	Kimberlite in Michigan	Financial Times, JUNE 11TH.	United States, Michigan	Prospecting
DS1982-0060 1982	Anon.	U.s. Nonfuel Mineral Production Shows Slight Increase in 198	Skillings Mining Review., APRIL 17TH. PP. 10-11.	United States, Appalachia	Blank
DS1982-0061 1982	Anon.	United States Geological Survey (usgs) Reported a Kimberlite Outcrop on the Keweenaw Peninsula	Engineering and Mining Journal, Vol. 183, No. 9, P. 254.	United States, Michigan, Great Lakes	Kimberlite, Geology
DS1982-0062 1982	Anon.	Cooperative Study to Develop and Test Techniques for Rapid D	Engineering and Mining Journal, Vol. 183, No. 7, P. 128.	United States, Wyoming, State Line, Rocky Mountains	Kimberlite, Geophysics
DS1982-0063 1982	Anon.	Diamond Research Funded	Mining Journal (London), Vol. 298, No. 7638, P. 31.	United States, Wyoming, State Line, Rocky Mountains	Blank
DS1982-0076 1982	Ater, P.C., Mccallum, M.E., Eggler, D.H.	Petrology and Geochemistry of Mantle Eclogite Xenoliths From Colorado-Wyoming Kimberlites.	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, PP. 221-222, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1982-0088 1982	Basu, A.R., Tatsumoto, M.	Nd Isotopes in Kimberlites and Mantle Evolution	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 214, (abstract.).	South Africa, Lesotho, India, Russia, China, United States	Isotope Chemistry
DS1982-0090 1982	Bates, R.L.	Brief Mention of Diamonds in Riley County, Kansas and Histor	Geotimes, Vol. , No. 5, P. 46.	United States, Kansas, Central States	Blank
DS1982-0091 1982	Beardsley, R.H.	Modal Analysis of the Granite Mountain Pulaskite, Pulaski County, arkansaw.	Msc. Thesis, University Arkansaw, 60P.	United States, Gulf Coast, Arkansas	Syenite, Petrology
DM1982-0731 1982	Beverley, J.	Output Slumps to 5.7 M Carats at Zaire Mine Report Sibeka	Diamond News And South African Jeweller., Vol. 45, No. 12, SEPTEMBER, P. 3.	Democratic Republic of Congo, Angola, Brazil, Venezuela, Indiana, Central Africa, United States	Production, Diamond
DM1982-0735 1982	Blow, S.	Tourists Join Quest for Gems	The Dallas Morning News, JULY 13TH. 2P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1982-0109 1982	Bolivar, S.L.	The Prairie Creek Kimberlite, Arkansaw	Arkansaw GEOL. COMM. miscellaneous Publishing, No. 18, PP. 1-21.	United States, Gulf Coast, Arkansas, Pennsylvania	Geology, Petrology
DS1982-0110 1982	Bolivar, S.L.	Kimberlites; a Petrologist's Best Friend	Earth Science., Vol. 35, No. 3, PP. 15-18.	United States, Gulf Coast, Arkansas, Pennsylvania, Appalachia, Kentucky	Blank
DS1982-0113 1982	Bradley, S.D., Mccallum, M.E.	Lower Crustal Xenoliths from Colorado-Wyoming State Line Kimberlites.	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 236, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1982-0117 1982	Braille, L.W., Hinze, W.J., Vonfrese, R.R.B.	Gravity and Magnetic Anomaly Dat a Analysis	National Technical Information Service NASA CR 169504, 1P.	United States	Mid-continent, Geophysics
DS1982-0123 1982	Bristow, J.W.	The Current Status of Diamond Exploration in the Usa	California Mining Journal, Vol. No. PP. 60-69.	United States	Kimberlite, Diamond
DS1982-0132 1982	Carlson, J.A., Johnson, R.B., Mccallum, M.E., Padgett, J.P.	Evaluation of Geophysical Techniques for Diatreme Delineation in the Colorado-Wyoming Kimberlite Province. #1	Proceedings of Third International Kimberlite Conference, TERRA, Vol. 2, No. 3, P. 203, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Kimberlite, Geophysics, Groundmag, Electromagnetic, Radioactivity
DS1982-0133 1982	Carlson, J.A., Mccallum, M.E.	Evaluation of Geophysical Techniques for Diatreme Delineatio	The Journal of The Colorado-wyoming Academy of Science, Vol. 14, No. 1, P. 27, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Kimberlite, Geophysics
DS1982-0136 1982	Cathles, L.M.	Mineral Deposits Research Review for Industry, 1982	Penn. State University Earth Miner. Sci. Exp. Stn. Circular, Vol. 52, No. 1, PP. 5-8.	United States	Kimberlite
DS1982-0150 1982	Collins, D.S.	Diamond Collecting in Northern Colorado	The Mineralogical Record., JULY-AUGUST, PP. 205-208.	United States, Colorado, Wyoming, State Line, Rocky Mountains, Front Range	Blank
DS1982-0152 1982	Compston, W., Mcdougall, I., Wyborn, D.	Possible 2 Stage Sr 87 Evolution in the Stockdale Rhyolite	Earth And Planetary Sci. Letters, Vol. 61, No. 2, Dec., PP. 297-302.	United States, Kansas, Central States	Strontium, Stockdale
DS1982-0155 1982	Cooke, C.	Collecting Gemstones in Wyoming	Lapidary Journal, Vol. 36, APRIL, PP. 228-235.	United States, Wyoming, State Line, Sierra Madre, Medicine Bow Mountains	Blank
DS1982-0158 1982	Cullers, R.L., Mullenax, J., Dimarco, M.J., Nordeng, S.	The Trace Element Content and Petrogenesis of Kimberlites In Riley County, Kansas, United States (us)	American MINERALOGIST., Vol. 67, PP. 223-233.	United States, Kansas, Central States	Kimberlite, Xenolith, Carbonate, Bala, Randolph No. 1, Rare Earth Elements (ree)
DS1982-0159 1982	Cullers, R.L., Nordeng, S.H.	The Petrogenesis of Micaceous Peridotite of Kimberlitic Affinities from Woodson County, Kansas.	Geological Society of America (GSA), Vol. 14, No. 3, P. 108, (abstract.).	United States, Kansas, Central States, Wilson	Rare Earth Elements (ree)
DS1982-0185 1982	Ehrenberg, S.N.	Rare Earth Element Geochemistry of Garnet Lherzolite and Megacrystalline Nodules from Minette of the Colorado Plateau Province.	Earth Planetary Sci. Letters, Vol. 57, No. 1, PP. 191-210.	United States, Arizona, New Mexico, Colorado Plateau	Blank
DS1982-0186 1982	Ehrenberg, S.N.	Petrogenesis of Garnet Lherzolite and Megacrystalline Nodules from the Thumb, Navajo Volcanic Field.	Journal of PETROLOGY, Vol. 23, No. 4, PP. 507-547.	United States, Colorado Plateau, New Mexico, Arizona, Utah	Diatreme, Potassic, Lamprophyre, Rare Earth Elements (ree), Geochemistry, Petrology
DS1982-0202 1982	Fasnacht, T.L.	A Seismic Reflection Study of the Precambrian Basement Along the Wisconsin State Line.	Msc. Thesis Northern Illinois, De Kalb., 103P. 1:5, 940 61 REFS.	United States, Illinois, Great Lakes	Mid Continent
DS1982-0220 1982	Geoterrex	Analog Records from an Airborne Electromagnetic and Magnetic Survey of Parts of the Upper Peninsula of Michigan. (wisconsin).	United States Geological Survey (USGS) OPEN FILE., No. 82-0060 A, B, AND No. 83-195A, B.	United States, Michigan, Wisconsin, Great Lakes	Mid-continent
DM1982-0741 1982	Griffee, C.	Panel Unanimously Rejects Plan for Bidding to Allow Gem Exploration in Park.	Arkansaw GAZETTE., OCTOBER 6TH. 1P.	United States, Gulf Coast, Arkansas, Pennsylvania	Prospecting News Item
DS1982-0240 1982	Haggerty, S.E.	Magsat, Geological and Gravity Correlations in Northern South America and West Africa.	Eos, Vol. 63, No. 45, P. 909. (abstract.).	South Africa, United States	Mid-continent
DS1982-0262 1982	Hausel, W.D.	Investigations Related to Prospecting for Diamond Bearing Kimberlite.	Quarterly Smmrri Report To U.s. Department Interior State Mining, 1P. DATED MARCH 31ST.	United States, Wyoming, State Line, Rocky Mountains	Geochemistry
DS1982-0263 1982	Hausel, W.D.	Diamond Bearing Kimberlites. In: Ore Deposits of Wyoming	Wyoming Geological Survey Prelim. Report, No. 19, PP. 17-20.	United States, Wyoming, State Line, Oregon, Medicine Bow Mountains	Blank
DS1982-0264 1982	Hausel, W.D., Albert, K., Brink, C., Roberts, J.	Report on Investigations Related to Prospecting for Diamond bearing Kimberlite and Related Placer Deposits in Wyoming.	Wyoming Geological Survey Open File Report, No. 82-1, 48P.	United States, Wyoming, State Line, Rocky Mountains, Green River Basin	Geochemistry, Prospecting
DS1982-0267 1982	Hearn, B.C.JR., Mcgee, E.S.	Garnet Peridotites from Williams Kimberlites, North-centralmontana, United States (us)	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 218, (abstract.).	United States, Montana, Rocky Mountains	Kimberlite, Alnoite, Diatreme, Lherzolite, Harzburgite, Dunite
DS1982-0268 1982	Hearn, B.C.JR., Mcgee, E.S.	Garnet in Montana Diatremes: a Key to Prospecting for Kimberlites.	United States Geological Survey (USGS) OPEN FILE REPORT., No. 82-722, 45P.	United States, Montana, Rocky Mountains	Kimberlite, Analyses, Williams, Big Slide, Bulletinwacker Coulee
DS1982-0284 1982	Hunter, R.H., Taylor, L.A.	Magma Mixing in the Evolution of Kimberlite: Compositionally Distinct Megacryst Suites from Southwest Pennsylvania, U.s.a.	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 211, (abstract.).	United States, Pennsylvania, Appalachia	Kimberlite, Mineralogy
DS1982-0285 1982	Hunter, R.H., Taylor, L.A.	Instability of Garnet from the Mantle: Glass As Evidence Of metasomatic Melting.	Geology, Vol. 10, No. 12, PP. 617-620.	United States, Pennsylvania, Appalachia, Georgia	Blank
DS1982-0291 1982	Jackson, D.E., Hunter, R.H., Taylor, L.A.	A Mesozoic Window Into the Sub-appalachian Mantle: Kimberlite from the Eastern United States.	Geological Society of America (GSA), Vol. 14, No. 1-2, P. 28, (abstract.).	United States, Appalachia, New York	Kimberlite, Dike, Devonian, Shale, Garnet
DS1982-0292 1982	Jackson, D.E., Hunter, R.H., Taylor, L.A.	Shallow Level Kimberlite from the Northeastern United States (us): an Unusual Mantle Sample.	Eos, Vol. 63, PP. 463-464.	United States, Appalachia, New York	Blank
DS1982-0297 1982	Janse, A.J.A.	Report Listing All Occurrences in the Great Lakes Region	B P Report For Bibliochrony, 10P. UNPUBL.	United States, Wisconsin, Michigan, Illinois, Ohio, Iowa, Indiana	Waukesha, Ozaukee, Pierce, Washington, Dodge, Racine, Dane, Green
DS1982-0299 1982	Johnson, C.A., Essene, E.J.	The Formation of Garnet in Olivine-bearing Metagabbros From the Adirondacks.	Contributions to Mineralogy and Petrology, Vol. 81, No. 3, PP. 240-247.	United States, Appalachia	Blank
DS1982-0303 1982	Jones, A.P., Smith, J.V.	Electron Probe Analyses of Minette Minerals and Ion Probe Procedures for Micas.	Geological Society of America (GSA), Vol. 14, No. 7, P. 523. (abstract.).	United States, Colorado Plateau	Probe Data, Geochemistry, The Thumb, Agathla Peak, Navajo Volcan
DS1982-0305 1982	Jones, B.	Strategic Minerals.. there are Some We Can't Do Without Butmay.	Rock And Gem., Vol. 12, No. 5, PP. 34-39; PP. 76-77.	United States	Diamonds, Kimberlite, Selenium, Cobalt, Chromium, Mercury, Titanium
DS1982-0323 1982	Kempton, P.D., Dungan, M.A., Menzies, M.A.	Petrology and Geochemistry of Ultramafic Xenoliths from The geronimo Volcanic Field	Proceedings of Third International Kimberlite Conference, TERRA, Vol. 2, No. 3, P. 222, (abstract.).	United States, Arizona, Colorado Plateau	Blank
DM1982-0745 1982	King, J.	Cominco Banks on U.s. Diamond Find	Globe And Mail, Nov. 8TH, P. B.4.	Canada, United States, Wyoming, Ontario, State Line, Rocky Mountains	Kimberlite, Diamonds
DS1982-0330 1982	Kirkley, M.B., Mccallum, M.	Garnet and Spinel Xenoliths from Colorado Wyoming Kimberlites Reflect Precambrian Tectonic Events.	Eos, Vol. 63, No. 45, P. 1134, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1982-0331 1982	Kirkley, M.B., Mccallum, M.E., Eggler, D.H.	Mantle Garnet-spinel Transition Zone Demonstrated by Xenoliths from Colorado-Wyoming Kimberlites.	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, PP. 218-219, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1982-0340 1982	Knepper, D.H.JR.	Lineaments Derived from Analysis of Linear Features Mapped from Land sat images of the Four Corners Region of the South Western United States.	United States Geological Survey (USGS) OPEN FILE., No. 82-849, 79P.	United States, Colorado Plateau, Arizona, New Mexico, Utah, Colorado	Tectonics
DS1982-0367 1982	Ledger, E.B.	Uranium Content of Selected Arkansaw Igneous Rocks	Geological Society of America (GSA), Vol. 14, No. 3, P. 115. (abstract.).	United States, Gulf Coast, Arkansas, Hot Spring County	Geochemistry, Phonolite, Lamprophyre
DS1982-0397 1982	Marrs, R.W., Hausel, W.D.	Detection of Diamond Bearing Kimberlites in the Colorado Wyoming Kimberlite Province. #1	Report Submitted To Nasa/jet Propulsion Laboratory, First Qu, 3P.	Colorado, Wyoming, United States, State Line, Rocky Mountains	Kimberlite, Geophysics, Soil Sampling, Geochemistry
DS1982-0398 1982	Marrs, R.W., Hausel, W.D.	Detection of Diamond Bearing Kimberlites in the Colorado Wyoming Kimberlite Province. #2	Report Submitted To Nasa/jet Propulsion Laboratory Second Qu, 2P.	Colorado, Wyoming, United States, State Line, Rocky Mountains	Kimberlite, Multispectral Remote Sensing, Geophysics
DS1982-0418 1982	Mccallum, M.E., Coopersmith, H.G., Hodge, C.W.	Mineralogical and Textural Genetic Classification of Kimberlites in Northern Colorado and Southern Wyoming, United States (us)	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 209, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1982-0421 1982	Mccandless, T.E.	The Mineralogy, Morphology and Chemistry of Detrital Minerals of a Kimberlitic and Eclogitic Nature, Green River Basin, wyoming.	Msc. Thesis University Utah, Salt Lake City, 107P.	United States, Wyoming, Rocky Mountains, Manilla	Mineral Chemistry
DS1982-0423 1982	Mcgee, E.S., Hearn, B.C. JR.	Inclusions in the Lake Ellen Kimberlite, Northern Michigan, united States (us)	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 220, (abstract.).	Michigan, United States, Great Lakes	Kimberlite, Geophysics, Magnetic, Groundmag
DS1982-0425 1982	Mckeown, F.A., Pakiser, L.C.	Investigations of the New Madrid Missouri, Earthquake Region	United States Geological Survey (USGS) PROF. PAPER., No. 1236, 201P.	United States, Mississippi, Missouri, Gulf Coast, Arkansas	Reelfoot, Upper Mississippi Embayment, Midcontinent
DS1982-0438 1982	Milanovskiy, YE.YE., Malkov, B.A.	Epochs of Kimberlite Volcanism and Global Compressive and Expansionary Cycles of the Earth.	Doklady Academy of Science USSR, Earth Science Section., Vol. 252, No. 5, PP. 62-65.	Russia, Global, United States, Colorado, Wyoming, South Africa, Canada, West Africa	Tectonics, Structure, Geochronology
DS1982-0440 1982	Mitchell, J.R.	Field Trip: Herkimer Diamonds; Here are Six Locations Where you Can Dig New York's Quartz " Diamonds ".	Rock And Gem., Vol. 12, No. 7, PP. 62-67.	United States, Appalachia, New York	Fake
DS1982-0441 1982	Mitchell, J.R.	Field Trip; Herkimer Diamonds; Here are Six Locations Where you Can Dig New York's Quartz 'diamonds'.	Rock And Gem., Vol. 12, No. 7, PP. 62-67, (JULY).	United States, Appalachia, New York	Blank
DS1982-0445 1982	Moll, S.H.	Reconnaissance Geologic Mapping in North Central Colorado United State sing Multispectral Gamma Ray Data.	International/ Symposium REMOTE SENSING of THE ENVIRONMENT, SECOND THEM, PP. 86-87. (abstract.).	United States, State Line, Colorado	Remote Sensing
DS1982-0452 1982	Mussard, D.E.	Petrology and Geochemistry of Selected Precambrian Felsic Plutons, Southern Medicine Bow Mountains, Wyoming.	Fort Collins: Msc. Thesis, Colorado State University, 245P.	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Regional Studies
DS1982-0460 1982	Nelson, B.K., Lillie, R.J., De voogd, B., Brewer, J.A., Oliver.	Cocorp Seismic Reflection Profiling in the Ouachita Mountain	Tectonics, Vol. 1, No. 5, PP. 413-430.	United States, Gulf Coast, Arkansas	Blank
DS1982-0486 1982	Padgett, J.P., Mccallum, M.E., Meyer, H.O.A.	Relationship between Geochemistry and Color of Garnet Xenocrysts from Colorado-Wyoming Kimberlites.	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 224, (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1982-0489 1982	Parkhurst, D.	Gemstones in the United States	California Mining Journal, Vol. 52, No. 4, DECEMBER, PP. 12-13.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrence
DS1982-0490 1982	Pasteris, J.D.	Suggested Use of Indigenous Kimberlite Minerals in Evaluation of Diamond Potential.	Journal of METALS, Vol. 35, No. 12, P. A048. (abstract.).	United States	Prospecting, Genesis
DS1982-0507 1982	Potts, R.B.	Satellite Image Map of Kentucky	Geological Survey of KENTUCKY, MAP 1:1, 000, 000	United States, Kentucky, Appalachia	Tectonics, Structural Geology
DS1982-0528 1982	Rohn, K.H.	South to the Ozarks	Jewelry Making Gems And Minerals, No. 542, PP. 44-47; PP. 50-51.	United States, Gulf Coast, Arkansas, Pennsylvania	Diamond Occurrences
DS1982-0544 1982	Schouten, H., Klitgord, K.D.	The Memory of the Accreting Plate Boundary and the Continuity of Fracture Zones.	Earth Planet. Sci. Lett., Vol. 59, PP. 255-266.	United States	Mid-continent, Tectonics
DS1982-0547 1982	Schulze, D.J.	chromium POOR MEGACRYSTS from the HAMILTON BRANCH KIMBERLITE, KENTUCKY.	Eos, Vol. 63, No. 45, P. 1134, (abstract.).	United States, Kentucky, Central States	Petrography
DS1982-0552 1982	Scott smith, B.H., Skinner, E.M.W.	A New Look at Prairie Creek, Arkansaw. #1	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 210, (abstract.).	United States, Gulf Coast, Arkansas, Pennsylvania	Kimberlite, Breccia, Hypabyssal, Peridotite, Lamproite
DS1982-0581 1982	Steele, K.F.	Uranium and Other Element Analyses of Igneous Rocks of Arkansas.	National Technical Information Service, DU PONT DE NEMOURS AND CO., GJBX-129-82, DPST-8L-141-17, 14P. FICHE ONLY.	United States, Gulf Coast, Arkansas, Pennsylvania, Hot Spring County	Geochemistry
DS1982-0623 1982	Von frese, R.R.B., Hinze, W.J., Braile, L.W.	Regional North American Gravity and Magnetic Anomaly Correlations.	Roy. Astron. Soc. Geophys. Journal, Vol. 69, PP. 745-761.	United States, Canada	Regional Geophysics
DS1982-0634 1982	Westman, B.J.	If Diamonds Are Not Vigorously Sought, It Is Not Logic	California Mining Journal, MARCH, PP. 4; PP. 6-8; P. 10.	United States, Gulf Coast, Arkansas, West Coast, California, Rocky Mountains	Diamond Occurrences
DS1982-0642 1982	Won, I.J., Son, K.H.	Crustal Interpretation of the Magsat Dat a in the Continental United States.	National Technical Information Service NASA CR/169837 E83-10183, 35P.	United States	Mid-continent, Magsat, Magnetics
DS1982-0643 1982	Woodzick, T.L., Mccallum, M.E.	A Teledetective Study of Kimberlite Regions in North America ( Colorado-wyoming),east Africa ( Mwadui ),and Siberia (mir). #1	Proceedings of Third International Kimberlite Conference, TERRA COGNITA, ABSTRACT VOLUME., Vol. 2, No. 3, P. 203, (abstract.).	United States, Colorado, Wyoming, East Africa, Russia, Tanzania, Rocky Mountains	Kimberlite, Geophysics, Remote Sensing
DS1983-0006 1983	Alibert, C., Albaredo, F.	Isotopic Heterogeneities in North American Kimberlites	Eos, Vol. 64, No. 18, MAY 3, P. 341. (abstract.).	United States	Blank
DS1983-0071 1983	Anon.	Diamond (industrial), 1983	Mineral Commodities Summaries (united States Bureau of Mines), PP. 44-45.	Global, United States	Production, Markets, Supply, Demand
DS1983-0093 1983	Anon.	Another Diamond Firm Files for Chapter 11	Jewellers Circular Keystone, Vol. 149, No. 12, P. C.	United States	Investment
DS1983-0094 1983	Anon.	Tempelsmans Buy Lazare Kaplan Stock	Jewellers Circular Keystone, Vol. 154, No. 10, OCTOBER P. H.	United States	Investments
DS1983-0095 1983	Anon.	Digging for Diamonds. #1	National Geographic World., No. 98, OCTOBER, PP. 32-33.	United States, Arkansas, Gulf Coast, Pennsylvania	Crater Of Diamonds
DS1983-0096 1983	Anon.	Exploration Could Lead to Important Resources According to Wyoming geological Survey.	Calif. Min. Journal, Vol. 52, No. 9, PP. 40-41.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Diamonds, Kimberlite, Geology
DS1983-0097 1983	Anon.	Diamonds in Michigan	The Conglomerate, (michigan Mineralogical Society), FEBRUARY, PP. 6-8.	United States, Great Lakes, Michigan	Crystall Falls, Lake Ellen, Dowiagia, Mason, Grand Rapids
DS1983-0098 1983	Anon.	Diamond Park Perks	Jewellers Circular Keystone Almanac., JUNE 21, P. 39.	United States, Gulf Coast, Arkansas, Pennsylvania	Crater Of Diamonds, Production, Size, News Item
DS1983-0112 1983	Arvidson, R.E., Guinness, E.A., Bindschadler, D.L.	Structure of the St. Francois Mountains and Surrounding Lead Belt Southeast Missouri: Inferences from Thermal Infrared and Other Dat a Sets.	Nasa National Technical Information Service Final Report., No. E84-10027, 78P.	United States, Missouri	Mid Continent
DS1983-0113 1983	Ater, P.C.	Petrology and Geochemistry of Eclogite Xenoliths from Colorado Wyoming Kimberlites.	Msc. Thesis, Colorado State University Fort Collins, 237P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Blank
DS1983-0115 1983	Baars, D.L.	The Colorado Plateau: a Geologic History	Albuquerque: University of New Mexico Press,	United States, Colorado Plateau	Geology
DS1983-0116 1983	Bales, J.R., Steele, K.F.	A Comparison of Carbonatites at Magnet Cove and Potash Sulfur Springs, Arkansaw.	Geological Society of America (GSA), Vol. 15, No. 1, P. 7, (abstract.).	United States, Gulf Coast, Arkansas, Hot Spring County, Garland County	Petrology, Geochemistry, Ijolite, Mineral Chemistry
DS1983-0125 1983	Bath, T.P.	Igneous Lamination and Layering in the Nepheline Syenite Quarry, Sec. 36, T1s, R 14w, Saline County, Arkansaw.	M.s. Thesis, University Arkansaw, 111P.	United States, Oklahoma, Arkansas	Sodalite Foyaite, Pulaskite, Petrography
DS1983-0129 1983	Bedard, J.H.	The Megantic Complex, a Member of the White Mountain Magma Series.	Gems And Minerals, Vol. 64, No. 18, MAY 3RD. P. 337. (abstract.).	United States, Appalachia, New York, Vermont	Blank
DS1983-0135 1983	Blackstone, D.L.Jr.	Laramide Compressional Tectonics, Southeastern Wyoming	Contrib. To Geology, Vol. 22, No. 1, PP. 1-38.	United States, Wyoming	Colorado Plateau, Rocky Mountains, Sweetwater Arch
DS1983-0144 1983	Breshears, T.L.	Regional Gravity Effects of Igneous Intrusions, Central Arkansas.	Msc. Thesis, University Missouri,	United States, Gulf Coast, Arkansas, Oklahoma	Geophysics
DS1983-0145 1983	Breshears, T.L.	Regional Gravity Effects of Igneous Intrusions Central Arkansas.	Missouri Acad. Science, Transactions, Vol. 17, P. 201. (abstract.).	United States, Oklahoma, Arkansas	Geophysics
DS1983-0150 1983	Brink, C., Albert, K.C., Hausel, W.D.	Stream Sediment Sampling for Kimberlite in Colorado-wyoming, and Techniques of Diamond Extraction.	Wyoming Geological Survey Public Inf. Circular, No. 19, PP. 40-41.	United States, State Line, Colorado, Wyoming	Prospecting, Sampling
DS1983-0151 1983	Bristow, J.W.	Diamond Exploration-usa	Indiaqua., No. 34, 1983/1, PP. 27-32.	United States, Gulf Coast, Arkansas, Colorado, Wyoming, State Line, Rocky Mountains	Travelogue
DS1983-0159 1983	Bunker, B.J., Witzke, B.J., Ludvigson, G.A.	Phanerozoic Tectonism in the Central Midcontinent United States (us) Historical Aspects of Spatially Discordant Structural Patterns.	Geological Society of America (GSA), Vol. 15, No. 6, P.536. (abstract.).	Wisconsin, Illinois, Kansas, United States, Great Lakes	Mid Continent
DS1983-0166 1983	Carlson, J.A.	Exploration for Kimberlite and Geophysical Delineation of Diatremes, W. State Line District, Colorado Wyoming.	Msc. Thesis, Colorado State University, 228P.	United States, State Line, Colorado, Wyoming, Larimer County	Heavy Minerals, Geophysics, Kimberlite, Ground, Magnetic, Electromagnetic
DS1983-0173 1983	Cichowski, L.	Diamonds Sparkle for Nervy Investors	Usa Today- Money Section., Oct. 20TH. P. B 1.	United States	Prices, Investment, Charts
DS1983-0183 1983	Cook, F.A., Brown, L.D., Kaufman, S., Oliver, J.E.	The Cocorp Seismic Reflection Traverse Across the Southern Appalachians.	American Association of Petroleum Geologists SPEC. Publishing, 60P.	United States	Mid Continent
DS1983-0185 1983	Cordua, W.	Geologist Finds Evidence of Cryptoexplosion Near Rock Elm	Leader-telegram., JULY 8TH. SECT. C, P. 1.	United States, Great Lakes, Wisconsin, Washington	Geology
DS1983-0186 1983	Cordua, W.S.	An Ordovician Cryptoexplorsion Structure from Near Rock Elm, Pierce County, Wisconsin.	Institute LAKE SUPERIOR GEOL., ABSTRACT VOLUME, PP. 8-9.	United States, Great Lakes, Wisconsin	Cryptoexplosion
DS1983-0191 1983	Cullers, R.L., Bickford, M.E.	Chemical Characteristics and Uranium-lead, Zircon Ages of Proterozoic Rocks in the Wet Mountains Region Colorado.	Geological Society of America (GSA), Vol. 15, No. 6, P. 551. (abstract.).	United States, Colorado, Wet Mountains, Rocky Mountains	Blank
DS1983-0197 1983	Dennison, J.M.	Comment and Reply on Tectonic Model for Kimberlite Emplacement in the Appalachian Plateau of Pennsylvania.	Geology, Vol. 11, No. 4, APRIL, PP. 252-254.	United States, Pennsylvania, Appalachia	Genesis
DS1983-0206 1983	Dutch, S.I.	Proterozoic Structural Provinces in the North Central United States.	Geology, Vol. 11, No. 8, PP. 478-481.	United States	Mid-continent
DS1983-0211 1983	Edgar, A.D., Arima, M.	Conditions of Phlogopite Crystallization in Ultrapotassic Volcanic Rocks.	Mineralogical Magazine., Vol. 47, MARCH PP. 11-19.	United States, Wyoming, Germany, California, West Coast, Australia, Spain, Uganda	Leucite
DS1983-0217 1983	Esperanca, S.	A Calcium Rich Ultramafic Inclusion from the Camp Creek Potassiclatite; Implications for the Crustal Composition Under Centr Al Arizona.	Eos, Vol. 64, No. 18, MAY 3RD. P. 340. (abstract.).	United States, Colorado Plateau, Arizona	Blank
DM1983-0842 1983	Forbes	Profile on Mr. Diamond... Bill Goldberg	Forbes, AUGUST 29TH. P. 140.	United States, Appalachia, New York	Cutting, Diamonds Notable
DS1983-0257 1983	Glass, G.B.	Minerals Outlook for Wyoming	Wyoming Geological Survey Pamphlet., SEPTEMBER, 21P. ALSO Vol. 1, No. 4, DECEMBER , 31P.	United States, Wyoming, Colorado, State Line, Rocky Mountains	Current Activities
DS1983-0259 1983	Gough, D.I.	Electromagnetic Geophysics and Global Tectonics	Journal of Geophysical Research, Vol. 88. No. B4, APRIL 10, PP. 3367-3377.	South Africa, United States	Mid-continent, Geophysics
DS1983-0266 1983	Greenberg, J.K., Brown, B.A.	Proterozoic Cratonization South of the Superior Province Inwisconsin.	Geological Society of America (GSA), Vol. 15, No. 6, P. 586. (abstract.).	Wisconsin, United States, Great Lakes	Mid Continent
DS1983-0267 1983	Gunter, W.D., Pajari, G.E., Hoinkes, G., Trembath, L.T.	Mineral Flow Layering in the Leucite Hills Volcanics	Geological Association of Canada (GAC)/Mineralogical Association of Canada (MAC)/CGU, Vol. 8, ABSTRACT VOLUME, P. A32. ( abstract.)	United States, Wyoming, Rocky Mountains	Leucite, Wyomingite, Orendite
DS1983-0277 1983	Haggerty, S.E., Tompkins, L.A.	Redox State of Earth's Upper Mantle from Kimberlite Ilmenite	Nature., Vol. 303, No. 5915, PP. 295-300.	West Africa, Liberia, United States	Mineral Chemistry
DS1983-0292 1983	Hausel, W.D.	Diamond Bearing Kimberlite Pipes in Wyoming and Colorado. #2	Rocks And Minerals, Vol. 58, No. 5, OCTOBER PP. 241-244.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geology
DS1983-0293 1983	Hausel, W.D.	Diamond Bearing Kimberlite Pipes in Wyoming and Colorado. #1	Wyoming Geological Survey, Information Circular, 8P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geology, History
DS1983-0294 1983	Hausel, W.D., Albert, K.G.	A Review of the Geology, Exploration Methods and Diamond Extraction Techniques of Colorado and Wyoming Kimberlites.	American Mining Congress Meeting Held San Francisco, Sept. 1, EXPLORATION and TECHNOLOGY SESSION, SEPT. 14TH. 6P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Mining Engineering, Geology, Prospecting, Evaluation, Sampling
DS1983-0299 1983	Hearn, B.C.JR, Mcgee, E.S.	Garnets in Montana Diatremes; a Key to Prospecting for Kimberlites.	United States Geological Survey (USGS) Bulletin., No. 1604, 33P.	United States, Montana, Rocky Mountains	Mineral Chemistry, Inclusions, Microprobe, Analyses
DS1983-0300 1983	Hearn, B.C.JR., Mcgee, E.S.	Garnet Peridotites from Williams Kimberlites, North Centralmontana, United States (us)	United States Geological Survey (USGS) OPEN FILE., No. 83-172, 26P.	United States, Montana, Rocky Mountains	Alnoite, Xenoliths, Petrography, Lherzolite, Geology, Diatreme
DS1983-0308 1983	Hodge, C.J.	Structure, Petrology, and Geochemistry of the Aultman Kimberlite Diatremes, Albany County, Wyoming.	Msc. Thesis, Colorado State University,	United States, State Line, Wyoming	Blank
DS1983-0320 1983	Humphrey, J.R., Wong, I.G.	Recent Seismicity Near Capitol Reef National Park, Utah And its Tectonic Implications.	Geology, Vol. 11, No. 8, PP. 447-451.	United States, Colorado, Wyoming, Arizona, New Mexico, Colorado Plateau	Blank
DS1983-0337 1983	Jones, B.	Diamonds Revisited	Rock And Gem., Vol. 13, No. 2, PP. 28-32.	United States	Blank
DS1983-0338 1983	Jones, M.K., Fisher, R.W.	Paleotectonics and Sedimentation in Sweetgrass Arch, Montana	American Association of Petroleum Geologists Bulletin., Vol. 67, No. 8, P. 1344. (abstract.).	United States, Montana, Rocky Mountains	Tectonics
DS1983-0348 1983	Kay, S.M., Snedden, W.T., Foster, B.P., Kay, R.W.	Upper Mantle Crustal Fragments in the Ithaca Kimberlites	Journal of GEOLOGY, Vol. 91, No. 3, PP. 277-290.	United States, Appalachia, New York	Nodules, Xenoliths, Petrography
DS1983-0355 1983	Kirkley, M.B., Mccallum, M.E., Eggler, D.H.	Coexisting Garnet and Spinel in Upper Mantle Xenoliths From colorado Wyoming Kimberlites: Appendix.	Annales Scientifiques De L' Universite De Clermont-ferrand Ii, No. 74, PP. 149-156.	United States, State Line, Colorado, Wyoming, Rocky Mountains	Analyses
DS1983-0376 1983	Krashes, L.S.	Harry Winston: a Story Told in Diamonds	Gems And Gemology, Vol. 19, No. 1, SPRING, PP. 21-29.	United States	History, Biography
DS1983-0409 1983	Lincoln, J.B.	Schaffer-aultman Kimberlite Complexes, Albany County, Wyomin	Symposium On The Genesis of Rocky Mountain Ore Deposits: Cha, PP. 71-77.	United States, Wyoming, State Line, Rocky Mountains	Detailed Geology, Petrography, Tectonics, Sampling, Prospecting
DS1983-0433 1983	Marks, J.E., Marrs, R.W.	Remote Sensing Exploration for Poorly Exposed Kimberlite In the Colorado-Wyoming Region.	Geological Survey WYOMING, Publishing INF. Circular No. 19, PP. 11-13.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Landsat
DS1983-0435 1983	Masterson, M.	Town Finds Gem in Diamond Mine	Usa Today, APRIL 6TH, WEDNESDAY, P. 3A.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item. Diamond Notable
DS1983-0438 1983	Mccallum, M.E., Lincoln, J.B.	Review of Kimberlite Exploration and Evaluation Methods	Geological Survey WYOMING, PUB. INFO. Circular No. 19, PP. 8-10.	United States, Wyoming, State Line, Colorado, Rocky Mountains	Sampling, Heavy Minerals, Soils
DS1983-0440 1983	Mcewing, C.E., Rees, C.E., Thode, H.G.	Sulphur Isotope Ratios in the Canyon Diablo Metallic Spheroids.	Meteoritics, Vol. 18, No. 3, SEPT. 30TH. PP. 171-178.	United States, Arizona, Colorado Plateau	Isotope, Meteor
DS1983-0441 1983	Mcgee, E.S., Hearn, B.C.JR.	Lake Ellen Kimberlite, Michigan, United States (us)	United States Geological Survey (USGS) OPEN FILE., No. 83-156, 22P.	United States, Michigan, Great Lakes	Xenolith, Megacrysts, Petrology, Petrography, Inclusions, Kimberite
DS1983-0442 1983	Mchone, J.G., Butler, J.R.	Tectonic Magmatic Origin of Mesozoic Alkalic Magmas in Eastern North America.	Geological Society of America (GSA), Vol. 15, No. 6, P. 640. (abstract.).	United States, Appalachia, Virginia	Tectonics, Kimberlite
DS1983-0443 1983	Mclemore, V.T.	Carbonatites in the Lemitar and Chupadera Mountains, Socorro County, New Mexico.	New Mexico Geological Society Guidebook, 34th. Field Conference, Soc, PP. 235-240.	United States, Colorado Plateau, New Mexico	Carbonatite, Petrology, Mineralogy, Geochemistry, Age, Alteration
DS1983-0444 1983	Mcphee, J.	In Suspect Terrain	New York: Mcgraw-hill Ryerson Ltd., 212P.	United States, Great Lakes, Appalachia	Kimberley, Travelogue, Geology, History
DS1983-0447 1983	Memmi, J.M., Mccallum, M.E., Hausel, W.D.	Preliminary Results of Resistivity Investigations of Colorado Wyoming Kimberlite Diatremes.	Geological Society of America (GSA), Vol. 15, No. 5, P. 317. (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geophysics, Kimberlite
DS1983-0449 1983	Menzies, M.A., Leeman, W.P., Hawkesworth, C.J.	Isotope Geochemistry of Cenozoic Volcanic Rocks Reveals Mantle Heterogeneity Below Western Usa	Nature., Vol. 303, No. 5914, PP. 205-209.	United States	Genesis, Geochemistry
DS1983-0458 1983	Mitchell, R.H.	Lamproites: Petrography and Mineralogy	Mantle Metasomatism And The Origin of Ultrapotassic And Rela, 4P. (abstract.).	Italy, Uganda, Wyoming, United States, Gulf Coast, Arkansas, Montana, Australia	Blank
DS1983-0459 1983	Mitchell, R.H., Lewis, R.D.	Priderite Bearing Xenoliths from the Prairie Creek Mica, Arkansas.	Canadian Mineralogist., Vol. 21, PP. 59-64.	United States, Gulf Coast, Arkansas, Pennsylvania	Petrology
DS1983-0475 1983	National Technical Information Service	Diamond Use in Grinding, Drilling and Machining Operations.1964-november 1982.	National Technical Information Service, PB83-802173, 194P.	United States	Blank
DS1983-0479 1983	Neville, S.L., Schiffman, P., Sadler, P.M.	New Discoveries of Spinel Lherzolite and Garnet Websterite Nodules in Alkaline Basalts from the South Central Ranges Ofcalifornia.	Geological Society of America (GSA), Vol. 15, No. 5, P. 302. (abstract.).	United States, California, West Coast	Mineralogy
DS1983-0487 1983	O'brien, T.F.	Evidence for the Nature of the Lower Crust Beneath the Central Colorado Plateau As Derived from Xenoliths in the Buell Park Green Knobs Diatremes.	Ph.d. Thesis, Cornell University,	United States, Arizona, New Mexico, Colorado Plateau	Lower Crust Composition
DS1983-0512 1983	Perry, L.E.	Field Trip Crater of Diamonds. America's One Diamond Pipe Is Now an Arkansaw State Park.	Rock And Gem., Vol. 13, No. 2, FEBRUARY, PP. 22-25.	United States, Gulf Coast, Arkansas, Pennsylvania	Blank
DS1983-0561 1983	Scott smith, B.H.	Kimberlites, Lamproites and their Origin	Mantle Metasomatism And The Origin of Ultrapotassic And Rela, 1P. (abstract.).	United States, Gulf Coast, Arkansas, Australia, Western Australia	Genesis, Petrography
DS1983-0563 1983	Scott smith, B.H., Skinner, E.M.W.	Kimberlite and American Mines, Near Prairie Creek Arkansaw	Annales Scientifiques De L' Universite De Clermont-ferrand Ii, No. 74, PP. 27-36.	United States, Gulf Coast, Arkansas, Pennsylvania	Petrography, Mineral Chemistry, Lamproite
DS1983-0567 1983	Setzer, T.	A Cocorp Seismic Reflection Profile in Nrotheastern Kansas	American Association of Petroleum Geologists (AAPG) STUDIES IN GEOLOGY, No. 15, PP. 2.2.1-7.2.2.1-12.	United States, Kansas	Mid-continent
DS1983-0572 1983	Shedenhelm, W.R.C.	Diamonds in California. No on Knows How they Got There, And no One Really Looks for Them.	Rock And Gem., Vol. 13, No. 2, FEBRUARY, PP. 8-11.	United States, California, West Coast	Diamond Occurrences, History
DS1983-0581 1983	Sloat, L.W.	Field Trip: Texas Diamonds	Rock And Gem., Vol. 13, No. 6, PP. 16-20.	United States, Texas, Gulf Coast	False Diamonds, Selenite
DS1983-0586 1983	Snedden, W.T.	Mineralogy and Setting of the Ithaca Kimberlites	Msc. Thesis, Cornell University, 91P. AND 72P. APPENDICES.	United States, Appalachia, New York	Chemistry, Petrography, Regional Geology, Tectonics, Geophysics
DM1983-0937 1983	Sward, R.	Indiana Diamonds Came from Canada	Toronto Star., SATURDAY, SEPT. 3RD. P. F8.	United States, Great Lakes, Indiana	History, Travelogue
DS1983-0595 1983	Taylor, L.A., Shervais, J.W., Hunter, R.H., Laul, J.C.	Major and Trace Element Geochemistry of Garnets and Ilmenites from Eastern United States (us) Kimberlites.	Geological Society of America (GSA), Vol. 15, No. 6, P. 704. (abstract.).	United States, Appalachia, Tennessee, Virginia, Kentucky, Pennsylvania	Geochemistry
DS1983-0621 1983	Vollmer, R.	Strontium, Neodymium and Lead Isotope Geochemistry of Basic Potassic volcanic Rocks: Petrogenetic Inferences.	Mantle Metasomatism And The Origin of Ultrapotassic And Rela, 3P.	Italy, Wyoming, United States, Australia	Blank
DS1983-0632 1983	Westman, B.J.	The Eagle Diamond a Case of Misplaced Carats	Calif. Min. Journal, Vol. 52, No. 4, DECEMBER PP. 67-75.	United States, Wisconsin, Great Lakes	Hoax, History
DS1983-0639 1983	Yarger, H.L.	Regional Interpretation of Kansas Aeromagnetic Data	Kansas Geological Survey Geophysical Series, No. 1, 35P.	United States, Kansas	Mid Continent
DS1984-0005 1984	Aldrich, M.J.JR., Laughlin, A.W.	A Model for the Tectonic Development of the Southeastern Colorado Plateau Boundary.	Journal of Geophysical Research, Vol. 89, No. B12, PP. 10, 207-10218.	United States, Colorado Plateau	Tectonics
DS1984-0091 1984	Anon.	Industrial Diamond Sale	Industrial Minerals, No. 203, AUGUST, P. 70.	United States	Carats Sold By General Services Division To Eight Companies
DS1984-0092 1984	Anon.	United States Industrial Minerals in 1983	Industrial Minerals, No. 199, P. 63.	United States	Diamonds
DS1984-0093 1984	Anon.	Diamonds Are Discovered in Alaska	Alaska Mines And Geology, Vol. 33, No. 4, OCTOBER 1984 P. 4.	United States, Alaska	Diamond Occurrence
DS1984-0116 1984	Armbrustmacher, T.J.	Alkaline Rock Complexes in the Wet Mountains Area, Custer And Fremont Counties, Colorado.	United States Geological Survey (USGS) PROF. PAPER., No. 1269, 33P.	United States, Colorado, Rocky Mountains	Blank
DS1984-0119 1984	Ater, P.C., Eggler, D.H., Mccallum, M.E.	Petrology and Geochemistry of Mantle Eclogite Xenoliths From Colorado Wyoming Kimberlites: Recycled Ocean Crust?	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 309-318.	United States, Colorado, Wyoming, State Line	Petrography, Mineral Chemistry, Garnets, Analyses, Whole Rock Composition
DS1984-0144 1984	Basu, A.R., Rubury, E., Mehnert, H., Tatsumoto, M.	Sm Nd, Potassium-argon and Petrologic Study of Some Kimberlites from Eastern United States and Their Implications for Mantle Evolution.	Contributions to Mineralogy and Petrology, Vol. 86, No. 1, PP. 35-44.	South Africa, United States, China, Appalachia, Russia, India, Lesotho, New York	Geochronology, Petrology
DS1984-0147 1984	Bendheim, R.	Diamonds in them Thar Glacial Deposits?	Sur View., Vol. 5, No. 2, DECEMBER P. 3.	United States, Great Lakes, Wisconsin, Michigan	Popular Account Of History Of Diamonds Found
DS1984-0151 1984	Bergman, S.C.	Lamproites and Other Potassium Rich Igneous Rocks: a Reviewof Their Occurrence, Mineralogy and Geochemistry.	Unknown, 128P. 7 TABLES; 24 FIGS. 2 PLS.	United States, Canada, Greenland, Appalachia, South Carolina, Central States	Lamproite, Terminology, Occurrences, Geochemistry, Mineral Chemistry
DS1984-0153 1984	Bergman, S.C., Dubessy, J.	Co2 Co Fluid Inclusions in a Composite Peridotite Xenolith:implications for Upper Mantle Oxygen Fugacity.	Contributions to Mineralogy and Petrology, Vol. 85, PP. 1-13.	United States, Nevada	Lunar Crater, Spectroscopy, Mineral Chemistry
DS1984-0163 1984	Bolivar, S.L.	An Overview of the Prairie Creek Intrusion, Arkansaw	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) PREPRINT., No. 84-346, 12P.	United States, Gulf Coast, Arkansas, Pennsylvania	Lamproite, Geology, Geochemistry
DS1984-0167 1984	Boyd, F.R.	Siberian Geotherm Based on Lherzolite Xenoliths from the Udachnaya Kimberlite, Ussr	Geology, Vol. 12, No. 9, SEPTEMBER PP. 528-530.	Russia, South Africa, India, United States, Montana, Rocky Mountains, Lesotho	Geothermobarometry, Garnet
DS1984-0172 1984	Bradley, S.D., Mccallum, M.E.	Granulite Facies and Related Xenoliths from Colorado Wyoming Kimberlite.	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 205-217.	United States, State Line, California, Colorado, Wyoming	Petrography, Whole Rock Chemistry
DS1984-0180 1984	Carlson, J.A., Johnson, R.B., Mccallum, M.E., Campbell, D.L.P.	Evaluation of Geophysical Techniques for Diatreme Delineation in the Colorado Wyoming Kimberlite Province. #2	Proceedings of Third International Kimberlite Conference, Vol. 1, PP. 21-32.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geophysics, Kimberlite, Electromagnetic, Ground, Magnetics, Vlf
DS1984-0195 1984	Collins, D.B., Collins, D.S.	A Colorado-Wyoming Border Diatreme and a Possible Potential kimberlite Indicator Plant.	The Mountain Geologist., Vol. 21, No. 2, APRIL PP. 68-71.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geochemistry, Heavy Mineral, Sampling, Geobotany
DS1984-0196 1984	Collins, D.S., Heyl, A.V.	History of the Colorado Wyoming State Line Diatremes	Rocks And Minerals, Vol. 59, No. 1, PP. 35-37.	United States, State Line, Colorado, Wyoming, Rocky Mountains	History
DS1984-0199 1984	Coopersmith, H.G.	Diamonds in North America. #2	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum, SYMPOSIUM OUTLINE FALL MEETING OCTOBER 24TH. P. 13.	United States, Gulf Coast, Arkansas, California, Virginia, Appalachia	Origin, Distribution
DS1984-0209 1984	Darby, D.A.	Trace Elements in Ilmenite: a Way to Discriminate Provenance or Age in Coastal Sands.	Geological Society of America (GSA) Bulletin., Vol. 95, PP. 1208-1218.	United States, Appalachia, Virginia, North Carolina	Sampling, Petrography
DS1984-0241 1984	Downie, I.F.	Kimberlite Indicators from Wisconsin- the Wahl Project	Bp Selco In House Memo, 2P.	United States, Great Lakes, Wisconsin	Prospecting, Sampling
DS1984-0246 1984	Duebendorfer, E.M. , Houston, R.S.	Structure of a Part of the Cheyenne Belt Eastern Medicine Bow Mountains.	Geological Society of America (GSA), Vol. 16, No. 4, P. 220. (abstract.).	United States, Wyoming, Rocky Mountains, Medicine Bow Mountains	Related Rocks
DS1984-0261 1984	England, P., Houseman, G.	On the Geodynamic Setting of Kimberlite Genesis #2	Earth and Planetary Science Letters, Vol. 67, PP. 109-122.	United States, Africa, Missouri, Colorado, Illinois, Kentucky, New York, Kansas	Distribution, Classification, Genesis, Magma
DS1984-0266 1984	Esperanca, S., Holloway, J.R.	Lower Crustal Nodules from the Camp Creek Latite, Carefree Arizona.	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 219-227.	United States, Arizona, Colorado Plateau	Petrography, Mineralogy, Microprobe, Analyses, Geothermometry
DS1984-0305 1984	Glass, G.B.	Metallic Minerals Section of Wyoming	Fifty First Annual Report of The Geological Survey Wyoming, JUNE 30TH. PP. 15-17.	United States, Wyoming, Colorado, State Line	Sheep Rock, Sybille Canyon, Happy Jack Pole Mountain
DS1984-0307 1984	Gold, D.P.	A Diamond Exploration Philosophy for the 1980's. the Recogni	Earth And Mineral Sciences, Vol. 53, No. 4, SUMMER PP. 37-42.	United States, Russia, Canada, Tanzania, Lesotho, South Africa, Australia	Brief Overview Of Exploration, Classification, Genesis, Origin
DS1984-0311 1984	Gregory, E.	Constraints on Kimberlite Magma Ascent Time	University WYOMING 1984 ROCKY MOUNTAIN GEO DAYS SYMPOSIUM, HELD A, PP. 5-7.	United States, State Line, Colorado, Wyoming	Genesis
DS1984-0317 1984	Griffin, T., Shaw, L.	Petrology of the San Isabel Batholith, Southern Wet Mountains Colorado.	Geological Society of America (GSA), Vol. 16, No. 4, P. 223 (abstract.).	United States, Colorado, Rocky Mountains	Related Rocks
DS1984-0327 1984	Gurney, J.J.	A Correlation Between Garnets and Diamonds in Kimberlites	University of Western Australia - Special Publication, No. 8, PP. 143-166.	South Africa, United States, Colorado Plateau	Mineral Inclusions
DS1984-0338 1984	Hansen, W.R.	Post Laramide Tectonic History of the Eastern Uinta Mountains, Utah, Colorado, and Wyoming.	The Mountain Geologist., Vol. 21, No. 1, JANUARY PP. 5-29.	United States, Colorado, Utah, Wyoming, Rocky Mountains	Tectonics
DS1984-0347 1984	Hausel, W.D., Roberts, J.T.	Economic Geology of the Colorado Wyoming Kimberlite Province	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) MEETING, RAPID CITY, SOUTH DAKOTA., PREPRINT 25P. SEPT. 13TH.	United States, Colorado, Wyoming, State Line, Rocky Mountains, Oregon	Geology, Prospecting, Geochemistry, Testing, Grease Table
DS1984-0351 1984	Hearn, B.C.JR., Mcgee, E.S.	Garnet Peridotite from Williams Kimberlites, North Central Montana, United States (us)	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 57-70.	United States, Rocky Mountains, Montana	Inclusions, Textures, Petrography, Mineral Chemistry, Analyses
DS1984-0366 1984	Hunter, R.H., Kissling, R.D., Taylor, L.A.	Mid to Late Stage Kimberlitic Melt Evolution: Phlogopites And Oxides from the Fayette County Kimberlite, Pennsylvania.	American Mineralogist., Vol. 69, No. 1-2, PP. 30-40.	United States, Appalachia, Pennsylvania	Geology, Petrography, Mineral Chemistry, Analyses, Ilmenites, Spinels
DS1984-0367 1984	Hunter, R.H., Taylor, L.A.	Magma Mixing in the Low Velocity Zone: Kimberlitic Megacrysts from Fayette County, Pennsylvania.	American Mineralogist., Vol. 69, No. 1-2, PP. 16-29.	United States, Appalachia, Pennsylvania	Inclusions, Mineral Chemistry, Petrography, Garnet Analyses
DS1984-0371 1984	Irving, A.J., Frey, F.A.	Trace Element Abundances in Megacrysts and Their Host Basalts: Constraints on Partition Coefficients and Megacryst Genesis.	Geochimica et Cosmochimica Acta ., Vol. 48, PP. 1201-1221.	United States, New Mexico, Colorado Plateau	Kilbourne Hole, Ultrabasic Rocks
DS1984-0374 1984	Jacobsen, S.B., Quick, J.E., Wasserburg, G.J.	A Neodymium and Strontium Isotopic Study of the Trinity Peridotite- implic Ations for Mantle Evolution.	Earth and Planetary Science Letters, Vol. 68, No. 3, JUNE PP. 361-378.	United States, California	Geochronology
DS1984-0378 1984	Janse, A.J.A.	Kimberlites - Where and When	University of Western Australia GEOL. and University EXTENSION., No. 8, PP. 19-62.	South Africa, United States, Brazil, Russia, India, Australia, Africa	Terminology, History, Geography, Chronology
DS1984-0384 1984	Jones, A.P., Wyllie, P.J.	Minor Elements in Perovskite from Kimberlites and Distribution of Rare Earth Elements- an Electron Probe Study.	Earth and Planetary Science Letters, Vol. 69, No. 1, JULY PP. 128-140.	South Africa, United States, Kentucky, New York, Central States, Appalachia	Rare Earth Elements (ree), Geochemistry
DS1984-0399 1984	Kempton, P.D., Menzies, M.A., Dungan, M.A.	Petrography, Petrology and Geochemistry of Xenoliths and Megacrysts from the Geronimo Volcanic Field, Southeastern Arizona.	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 71-83.	United States, Colorado Plateau, Arizona	Harzburgite, Lherzolite, Rare Earth Elements (ree), Websterite, Wehrlite, Mineral Chemistry
DS1984-0411 1984	Kirkley, M.B., Mccallum, M.E., Eggler, D.H.	Coexisting Garnet and Spinel in Upper Mantle Xenoliths From colorado Wyoming Kimberlites.	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 84-96.	United States, State Line, Colorado, Wyoming, California, Rocky Mountains	Websterite, Lherzolite, Petrography, Mineral Chemistry, Analyses
DS1984-0415 1984	Kodama, K.P.	Palaeomagnetism of Granitic Intrusives from the Precambrian basement Under Eastern Kansas; Orienting Drill Cores Using Secondary Magnetization components.	Geophysical Journal of the Royal Astronomical Society, Vol. 76, No. 2, PP. 273-287.	United States, Kansas, Central States	Mid Continent
DS1984-0417 1984	Koivula, J.I.	Gem News. the Golconda "d" Diamond Resurfaces. John Sinkankas Provides Information on Diamonds in Thailand. a Diamond Is Melted in Laboratory. Punch Jones Diamond.	Gems And Gemology, Vol. 32, WINTER PP. 242-243.	India, Thailand, Russia, United States, Great Lakes	Diamonds Notable
DS1984-0427 1984	Kostyuk, V.P., Kostyuk, E.A.	Potassium Alkaline Magmatism of Continents and its Link With Mantle Processes.	Soviet Geology And Geophysics, Vol. 25, No. 7, PP. 63-71.	South Africa, Russia, Siberia, United States, Colorado Plateau, Wyoming, Montana	Lamproite, Basalt, Review
DS1984-0431 1984	Krashes, L.S.	Harry Winston the Ultimate Jeweler	Gemological Institute of America (GIA) DISTRIBUTOR.,	United States	Biography, Kimberley
DS1984-0442 1984	Laberge, G.L., Myers, P.E.	Two Early Proterozoic Successions in Central Wisconsin and Their Tectonic Significance.	Geological Society of America (GSA) Bulletin., Vol. 95, No. 2, FEBRUARY PP. 246-253.	United States, Wisconsin	Mid Continent
DS1984-0446 1984	Lazko, YE.YE., Serenko, V.P.	Peridotites with Zoned Garnets from Yakutian Kimberlites: Evidence for Deep High Temperature Metasomatism and Mantle Diapirism?	International Geology Review, Vol. 26, No. 3, MARCH PP. 318-331.	Russia, South Africa, United States, Colorado Plateau	Genesis, Mineralogy
DS1984-0466 1984	Luedke, R.G., Smith, R.L.	Map Showing Distribution, Composition and Age of Late Cenozoic Volcanic centers in Arizona and New Mexico.	United States Geological Survey (USGS) Map, No. M.I. I-1523M 1: 2, 500, 000	United States, Colorado Plateau	Blank
DS1984-0467 1984	Luedke, R.G., Smith, R.L.	Map Showing Distribution, Composition and Age of Late Cenozoic Volcanic Centers in the Western Conterminous United States - Map 1:2,500,000	United States Geological Survey (USGS) Map, No. MI I-1091A, 1: 1, 000, 000	United States, Colorado Plateau, Arizona, New Mexico	Blank
DS1984-0483 1984	Marrs, R.W.	Spectral Detection of Kimberlite	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) PREPRINT., No. 84-343, 8P.	United States, Wyoming, State Line, Rocky Mountains	Remote Sensing
DS1984-0484 1984	Marrs, R.W., Marks, J., Hausel, W.D., Albert, K.G.	Detection of Diamond Bearing Kimberlites in the Colorado Wyoming Province. #2	Nasa Jet Propulsion Laboratory, Final Report Dated Sept. 28t, 70P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Remote Sensing, Geochemistry, Sampling, Prospecting, Geophysics
DS1984-0485 1984	Marrs, R.W., Marks, J.E., Hausel, W.D., Albert, G.K.	Detection of Diamond Bearing Kimberlites in the Colorado Wyoming Province. #1	International Symposium on Remote Sensing of Environment., THIRD THEMATIC CONFERENCE, APRIL 16TH.-19TH. 11P.	United States, State Line, Colorado, Wyoming	Landsat, Remote Sensing, Geophysics, Analyses, Diatreme
DS1984-0486 1984	Marrs, R.W., Raines, G.L.	Tectonic Framework of Powder River Basin, Wyoming and Montana Interpreted from Land sat Imagery.	American Association Petrol. Geol., Vol. 68, No. 11, NOVEMBER PP. 1718-1731.	United States, Montana, Wyoming, Rocky Mountains	Tectonics, Remote Sensing, Lineaments, Sedimentation
DS1984-0492 1984	Mathez, E.A., Blacic, J.D., Beery, J., Maggiore, C., Hollander.	Carbon Abundances in Mantle Minerals Determined by Nuclear Reaction Analysis.	Geophysical Research. LETTERS, Vol. 11, No. 10, OCTOBER, PP. 947-950.	United States, Colorado Plateau, New Mexico	Xenolith, Crystallography
DS1984-0496 1984	Matson, D.W., Muenow, D.W.	Volatiles in Amphiboles from Xenoliths, Vulcans Throne, Grand Canyon, Arizona, Usa	Geochimica et Cosmochimica Acta ., Vol. 48, No. 8, PP. 1629-1636.	United States, Arizona, Colorado Plateau	Blank
DS1984-0497 1984	Mauger, R.L.	Origin of ocelli in an early carboniferous minette near Concord, NorthCarolina	Geological Society of America, Vol. 16, No. 3, p. 179. (abstract.)	United States, Appalachia, North Carolina	Minette
DS1984-0498 1984	Mccandless, T.E.	Detrital Minerals of Mantle Origin in the Green River Basin, Wyoming.	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME)., SYMPOSIUM OUTLINE FALL MEETING DENVER OCTOBER 24TH. P. 13. (	United States, Wyoming, Green River Basin	Geochemistry, Morphology, Heavy Minerals
DS1984-0499 1984	Mccandless, T.E.	Detrital Minerals of Mantle Origin in the Green River Basinwyoming.	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) PREPRINT., No. 84-395, Oct. 26TH. 6P.	United States, Wyoming, State Line, Rocky Mountains	Geochemistry
DS1984-0500 1984	Mccandless, T.E., Nash, W.P.	Detrital Minerals from a Mantle Source, Green River Basin, Wyoming	American Mineralogist., IN PRESS	United States, Wyoming, Rocky Mountains, Green River Basin	Geochemistry
DS1984-0503 1984	Mcgee, E.S., Hearn, B.C.JR.	The Lake Ellen Kimberlite, Michigan, United States (us)	Proceedings of Third International Kimberlite Conference, Vol. 1, PP. 143-154.	United States, Michigan, Great Lakes	Prospecting, History, Xenocrysts, Mineralogy, Analyses, Inclusion
DS1984-0504 1984	Mchone, J.G.	Petrology of Camptonite from Campton, New Hampshire	Geological Society of America (GSA), Vol. 16, No. 1, P. 49. (abstract.).	United States, New Hampshire, Appalachia	Petrology
DS1984-0505 1984	Mckay, D.B.	Application of Ion Exchange to Neutron Activitation Analysis of Rare Earth Elements (ree) in Geologic Samples.	H.bsc. Thesis, Lakehead University,	United States, Texas	Olivine Meliltites, Uvalde
DS1984-0516 1984	Meyer, H.O.A., Mccallum, M.E.	Mineral Inclusions in Diamonds from Kimberlites in Colorado and Wyoming.	Geological Society of America (GSA), Vol. 16, No. 6, P. 595. (abstract.).	United States, Colorado, Wyoming, State Line, Rocky Mountains	Mineralogy
DS1984-0526 1984	Mitchell, R.H.	Geochemistry of Potassic Lavas from Smoky Butte, Montana	Geological Society of America (GSA), Vol. 16, No. 6, P. 597. (abstract.).	United States, Montana, Rocky Mountains	Geochemistry
DS1984-0533 1984	Morgan, P.	The Thermal Structure and Thermal Evolution of the Continental Lithosphere.	Physics And Chemistry of The Earth, Vol. 15, PP. 107-193.	South Africa, Antarctica, Asia, Russia, Canada, United States	Heat Flow
DS1984-0538 1984	Mullen, E.D.	Ultramafic Pods of the Eastern Ouachitas: Ophiolitic or Alkalic?	Geological Society of America (GSA), Vol. 16, No. 2, P. 110. (abstract.).	United States, Oklahoma, Arkansas	Petrology
DS1984-0562 1984	Nunn, J.A., Sleep, N.H.	Thermal Contraction and Flexure of Intracratonal Basins: a Theavy Rare Earth Elements (hree) Dimensional Study of the Michigan Basin.	Geophys. Journal of Roy. Astron. Soc., Vol. 76, PP. 587-635.	United States	Mid-continent
DS1984-0575 1984	Parrish, J.	Tectonic Model for Kimberlite Exploration in the Appalachian	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) PREPRINT., No. 84-397, 4P.	United States, Appalachia, New York, Pennsylvania, Kentucky	Tectonics
DS1984-0577 1984	Pasteris, J.D.	Use of Indigenous Kimberlite Minerals, Particularly Spinels, in the Evaluation of Diamond Potential.	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) SPECIAL VOLUME, EDITOR PETRUK, W., PP. 157-179.	South Africa, United States, Central States, Missouri, Kansas	De Beers, Wesselton, Dutoitspan, Avon, Bala, Prairie Creek
DS1984-0578 1984	Paterson, N.R., Macfadyen, D.A.	An Airborne Electromagnetic Input Magnetometer Survey State Line District,colorado Wyoming.	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) PREPRINT., No. 84-310, 11P.	United States, Colorado, Wyoming, State Line, Rocky Mountains	Geophysics, Kimberlite
DS1984-0579 1984	Pennwell	Principal Structural Features of Kansas	Pennwell, P.o. Box 21288, Tulsa Oklahoma., 1:500, 000	United States, Kansas	Tectonics, Mid Continent
DS1984-0580 1984	Pennwell	Principal Structural Features of Lousiana	Pennweel, P.o. Box 21288, Tulsa Oklahoma., 1:500, 000	United States, Louisiana	Tectonics, Mid Continent
DS1984-0612 1984	Roden, M.F.	Isotopic (strontium, Neodymium) Composition of the Source for the Navajo m Inettes, Colorado Plateau.	Geological Society of America (GSA), Vol. 16, No. 6, P. 637. (abstract.).	United States, Colorado Plateau	Geobarometry
DS1984-0616 1984	Ross, M.	Ultra alkalic Arfvedsonite and Associated Richterite Acmite, and Aegerine Augite in Quartz Syenite, Magnet Cove Alkalic Igneous Complex, Arkansaw.	Eos, P. 293. (abstract.).	United States, Gulf Coast, Arkansas, Hot Spring County	Petrography
DS1984-0637 1984	Schulze, D.J.	In homogeneities in Garnet Peridotite Xenoliths from Eastern kentucky Kimberlites.	Geological Society of America (GSA), Vol. 16, No. 6, P. 648. (abstract.).	United States, Kentucky, Appalachia	Mineral Chemistry
DS1984-0638 1984	Schulze, D.J.	chromium POOR MEGACRYSTS from the HAMILTON BRANCH KIMBERLITE, ELLIOTT COUNTY, KENTUCKY.	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 97-108.	United States, Kentucky, Appalachia, South Africa	Nodules, Petrography, Mineral Chemistry
DS1984-0641 1984	Scott smith, B.H., Skinner, E.M.W.	A New Look at Prairie Creek, Arkansaw. #2	Proceedings of Third International Kimberlite Conference, Vol. 1, PP. 255-284.	United States, Gulf Coast, Arkansas, Pennsylvania	Lamproite, Related Rocks, Petrography, Mineral Chemistry, Analysis
DS1984-0642 1984	Scott smith, B.H., Skinner, E.M.W.	Diamondiferous Lamproites	Journal of Geology, Vol. 92, PP. 433-438.	United States, Gulf Coast, Arkansas, Pennsylvania, Australia, Western Australia	Petrology, Argyle, Prairie Creek
DS1984-0643 1984	Seager, W.R., Shafiquillah, M., Hawley, J.W., Marvin, R.F.	New Potassium-argon Dates from Basalts and the Evolution of the Southern Rio Grande Rift.	Geological Society of America (GSA) Bulletin., Vol. 95, No. 1, PP. 87-99.	United States, Texas, New Mexico	Mid Continent
DS1984-0650 1984	Serpa, L., Setzer, T., Farmer, H., Brown, L., Oliver, J., Kaufman.	Structure of the Southern Keweenawan Rift from Cocorp Survey	Tectonics, Vol. 3, No. 3, JUNE PP. 367-384.	United States, Kansas	Mid-continent
DS1984-0660 1984	Shor, R.	Thomson Mckinnon Seeks to Delay First Scheduled Sale of Itsdiamonds.	Jewellers Circular Keystone, Vol. 150, No. 1, P. 92.	United States	Investment, Trust, Economics
DS1984-0679 1984	Smith, D., Ehrenberg, S.N.	Zoned Minerals in Garnet Peridotite Nodules from the Colorado Plateau: Implications for Mantle Metasomatism and Kinetics.	Contributions to Mineralogy and Petrology, Vol. 86, PP. 274-285.	United States, Colorado Plateau, Arizona, New Mexico, Colorado, Utah	Thumb, Minette, Genesis, Kimberlite, Diamonds
DS1984-0700 1984	Sorensen, S.S.	Trace Element Effects of Eclogite/peridotite Metasomatism, Catalin a schist Terrane, Southern California.	Geological Society of America (GSA), Vol. 16, No. 6, P. 663. (abstract.).	United States, California, West Coast	Blank
DS1984-0714 1984	Sutcliffe, R.H.	Kimberlites and Ultrabasic Lamprophyres in the Great Lakes Region.	Preprint., 18P.	Canada, Great Lakes, Ontario, United States	Review
DS1984-0724 1984	Taylor, L.A.	Kimberlitic Magmatism in the Eastern United States: Relationships to Mid Atlantic Tectonism.	Proceedings of Third International Kimberlite Conference., Vol. 1, PP. 417-424.	United States, Appalachia, Tennessee, Kentucky, Virginia, Pennsylvania	Classification, Geochronology, Inclusions, Geology, Mineralogy
DS1984-0736 1984	Trace, R.D., Amos, D.H.	Stratigraphy and Structure of the Western Kentucky Fluorspar District.	United States Geological Survey (USGS) PROF. PAPER., No. 1151-D, 41P.	United States, Kentucky, Appalachia	Related Rocks
DS1984-0747 1984	United States Bureau Of Mines	Mineral Commodity Summaries Industrial Diamond	United States Bureau of Mines MINERAL COMMODITY SUMMARIES, 1984, AN UP TO DATE SU, JANUARY, 1P.	United States	Production, Figures
DS1984-0752 1984	Vollmer, R., Ogden, P., Schilling, J.G., Kingsley, R.H.	Neodymium and Strontium Isotopes in the Ultrapotassic Volcanic Rocks from the Leucite Hills, Wyoming.	Contributions to Mineralogy and Petrology, Vol. 87, No. 4, PP. 359-368.	United States, Wyoming, Leucite Hills	Geochronology
DS1984-0763 1984	Weiner, L.	The Diamond Industry's Dilemma: Ucc Consignment Provisions	Unif. Comm. Code Law., PP. 99-115.	United States	Diamond Industry, Jewellery, Buyers
DS1984-0767 1984	Williams, N.A.	Mantle and Crustal Xenoliths from the North Hartland Dike, Vermont.	Geological Society of America (GSA), Vol. 16, No. 1, P. 71. (abstract.).	United States, Vermont, Appalachia	Lherzolite, Harzburgite, Petrography, Microprobe
DS1984-0769 1984	Wilson, C.R., Smith, D.	Cooling Rate Estimates from Mineral Zonation: Resolving Power and Applications.	Proceedings of Third International Kimberlite Conference, Vol. 2, PP. 265-275.	United States, Colorado Plateau, Arizona	Garnet, Diatreme, Microprobe Analyses
DS1984-0773 1984	Woodzick, T.L., Mccallum, M.E.	A Teledetective Study of Kimberlite Regions in North America (colorado- Wyoming),east Africa (mwadui) and Siberia (mir). #2	Proceedings of Third International Kimberlite Conference, Vol. 1, PP. 5-20.	United States, Colorado, Wyoming, State Line, Russia, East Africa, Tanzania	Geophysics, Kimberlite, Remote Sensing, Lineaments
DS1984-0779 1984	Wyllie, P.J., Jones, A.P.	Experimental Dat a Bearing on the Origin of Carbonatites, With Particular Reference to the Mountain Pass Rare Earth Deposit.	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME), PP. 935-949.	United States, West Coast, California	Carbonatite, Rare Earth Elements (ree), Geochemistry
DS1984-0792 1984	Zeitner, J.C.	Collect Emeralds, Diamonds, Rubies and More for a Fee	Lapidary Journal, Vol. 38, No. 1, PP. 62-77.	United States, New York	Prospecting, Herkimer
DS1985-0018 1985	Anon.	Diamond Sales Slump Touches Off Dealer Bankruptcies	California Mining Journal, Vol. 54, No. 7, MARCH, P. 34.	United States	Diamond Dealers
DS1985-0019 1985	Anon.	Diamonds in Alaska. #3	California Mining Journal, Vol. 54, No. 5, JANUARY PP. 25-26.	United States, Alaska	Circle District, Placer, Prospecting
DS1985-0028 1985	Armbrustmacher, T.J., Futa, K.	Petrology of Alkaline Rocks in the Carbonatite Complex at Iron Hill, Powderhorn District, Gunnison County, Colorado - New Geochemical and isotopic Data.	Geological Society of America (GSA), Vol. 17, No. 3, FEBRUARY P. 149. (abstract.).	United States, Colorado, Rocky Mountains	Analyses, Isotope
DS1985-0047 1985	Barker, D.S.	Tertiary Alkaline Magmatism in Trans Pecos Texas	Conference Report of A Meeting of The Volcanics Studies Grou, 1P ABSTRACT.	United States, Gulf Coast, Texas	Hawaiite, Mugearite, Geochemistry
DS1985-0048 1985	Barker, D.S., Mitchell, R.H., Mckay, D.	Late Cretaceous Nephelinite to Phonolite Magmas Balcones Province, Texas.	Geological Society of America (GSA), Vol. 17, No. 3, FEBRUARY P. 150. (abstract.).	United States, Texas, Gulf Coast	Perovskite, Petrography
DS1985-0058 1985	Benoit, V., Mercier, J.C.C.	Hydrous Peridotites in the 'pseudokimberlites' from the Colorado Plateau.	Terra Cognita., Vol. 5, No. 2-3, SPRING-SUMMER P. 316. (abstract). ABSTRACT VOL	United States, Colorado Plateau	Mineral Chemistry, Metamorphism
DS1985-0059 1985	Benoit, V., Mercier, J.C.C.	Hydrated Garnet Bearing Peridotite Xenoliths from the Colorado Plateau.	Terra Cognita., Vol. 5, No. 4, AUTUMN P. 441, (abstract.).	United States, Colorado Plateau	Minettes, Geochemistry
DS1985-0060 1985	Berendsen, P., Blair, K.P.	The Control of Basement Related Faults on the Localization Of Hydrocarbons and Minerals Central Kansas.	6th. International Conference Basement Tectonics, Held Sante Fe Septemb, P. 9. (abstract.).	United States, Central States, Kansas	Geotectonics, Rift
DS1985-0061 1985	Berendsen, P., Cullers, R.L., Mansker, W.L., Cole, G.P.	Late Cretaceous Kimberlite and Lamproite Occurrences in Eastern Kansas, United States (us)	Geological Society of America (GSA), Vol. 17, No. 3, FEBRUARY P. 151. (abstract.).	United States, Kansas, Central States, Wilson	Winkler Crater, Rose Dome, Occurrences
DS1985-0064 1985	Bergmann, O.R.	Industrial Diamond 1985	Mining Engineering, Vol. 37, No. 5, MAY P. 101.	United States	Production
DS1985-0065 1985	Bickford, M.E., Anderson, J.L.	Proterozoic Granite-rhyolite Terranes of the Southern Midcontinent, Usa	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 11. (abstract.).	United States, Colorado Plateau, Colorado, Wet Mountains, Central States	Geotectonics
DS1985-0078 1985	Boulton, G.S., Smith, G.D., Jones, A.S., Newsome, J.	Glacial Geology and Glaciology of the Last Mid Latitude Icesheets.	Journal of the Geological Society of London., Vol. 142, No. 3, MAY PP. 447-474.	United States, Canada	Glacial Dispersion
DS1985-0089 1985	Brookins, D.G., Mansker, W.L.	Upper Mantle and Crustal Rocks in North Central Kansas: Evidence from Kimberlites.	6th. International Conference Basement Tectonics, Held Sant Fe, Septemb, P. 13. (abstract.).	United States, Central States, Kansas	Petrography, Geochemistry, Geophysics
DS1985-0102 1985	Callandra, J.D.	Preliminary Results of a Ground Magnetic Survey of Kimberlite Intrusives in Elliott County, Kentucky.	Geological Society of America (GSA), Vol. 17, No. 2, JANUARY P. 83. (abstract.).	United States, Kentucky, Appalachia	Kimberlite, Geophysics
DS1985-0103 1985	Campos-Marquetti, R.	Discrimination of Hydrothermally Altered Mineralized Zones In New Mexico with the Use of Land sat Thematic Mapper Digital Data.	Geological Society of America (GSA), Vol. 17, No. 3, P. 153. (abstract.).	United States, New Mexico	Ortiz Mountains, Monzonite, Latite
DS1985-0115 1985	Chartier, T.	A Petrological Study to Unveil Possible Internal Variations in the Lake Ellen Kimberlite Crystal Falls, Michigan.	Michigan Technological University, 30P. 31 SLIDES.	United States, Great Lakes, Michigan	Petrology, Sampling, Hand Specimen Petrology
DS1985-0116 1985	Chartier, T.	Microscopic Textures and Structures in the Lake Ellen Kimberlite.	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) MEETING HELD APRIL 24TH. HOUGHTON MICHIGAN., SKILLINGS MINING REVIEW, Vol. 74, No. 14, APRIL 6TH. P. 5. L	United States, Great Lakes, Michigan	Blank
DS1985-0117 1985	Chartier, T.	Miscroscopic Textures and Structures in the Lake Ellen Kimberlite.	Skillings Mining Review., Vol. 74, No. 14, APRIL 6TH. P. 5.	United States, Michigan, Great Lakes	Blank
DS1985-0120 1985	Clague, D.A.	Hawaiian Alkaline Volcanism	Conference Report On A Meeting of Volcanics Studies Group He, 1P. ABSTRACT.	United States, Hawaii	Melilitite, Nephelinite, Basanite, Geochemistry
DS1985-0126 1985	Condie, K.C.	Early Proterozoic Continental Accretion in Southwestern North America.	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 13. (abstract.).	United States, Colorado Plateau, Colorado, New Mexico, Arizona	Geotectonics
DS1985-0127 1985	Condie, K.C.	Secular Variation in the Composition of Basalts - an Index To Mantle Evolution.	Journal of PETROLOGY, Vol. 26, No. 3, AUGUST PP. 545-563.	United States, Colorado Plateau, New Mexico	Genesis
DS1985-0128 1985	Coopersmith, H.G., Mitchell, R.H.	Geology and Exploration of the Rose Lamproite, Southeast Kansas	Proceedings of the Fourth International Kimberlite Conference., POSTER ABSTRACT SUBMITTED, 2P. (abstract.).	United States, Central States, Kansas	Petrography, Prospecting, Geochemistry, Lamproite
DS1985-0129 1985	Cordua, W.S.	Rock Elm Structure, Pierce County, Wisconsin: a Possible Cryptoexplosion Structure.	Geology, Vol. 13, No. 5, PP. 372-374.	United States, Great Lakes, Wisconsin	Cryptoexplosion
DS1985-0131 1985	Crone, A.J., Mckeown, F.A., Harding, S.T., Hamilton, R.M., Russ.	Structure of the New Madrid Seismic Source Zone in Southeastern Missouri and Northeastern Arkansaw.	Geology, Vol. 13, No. 8, PP. 547-550.	United States, Gulf Coast, Arkansas	Geophysics
DS1985-0132 1985	Crowley, K.D.	Fission Track Thermochronology of Basement Rocks in the Midcontinent: Preliminary Results and Tectonic Implications.	6th. International Conference Basement Tectonics, Held Sante Fe , Septe, P. 14. (abstract.).	United States, Central States, Kansas, Oklahoma	Geotectonics
DS1985-0133 1985	Cullers, R.L., Ramakrishnan, S., Berendsen, P., Griffin, T.	Geochemistry and Petrogenesis of Lamproites, Late Cretaceous Age, Woodson County, Kansas, United States (us)	Geochimica et Cosmochimica Acta ., Vol. 49, PP. 1383-1402.	United States, Central States, Kansas	Lamproite Terminology, Analyses, Silver City Dome
DS1985-0135 1985	Czamanske, G.K., Atkin, S.A.	Metasomatism, Titanian Acmite, and Alkali Amphiboles in Lithic Wacke Inclusions Within the Coyote Peak Diatreme, Humboldt County, California.	American MINERALOGIST., Vol. 70, No. 5-6, MAY-JUNE PP. 499-516.	United States, West Coast, California	Blank
DS1985-0148 1985	Dickas, A.B.	Comparative Precambrian Stratigraphy Along the Mid Continent Rift Trend.	Geological Society of America (GSA), Vol. 17, No. 5, MARCH P. 284. (abstract.).	United States, Wisconsin, Michigan, Minnesota, Iowa, Nebraska, Kansas	Mid Continent
DS1985-0153 1985	Doulenc, A.	The Leucite Hills...wyomingite	Lapidary Journal, Vol. 39, No. 9, DECEMBER PP. 64-65.	United States, Colorado Plateau, Wyoming, Leucite Hills	Mineralogy
DS1985-0155 1985	Dromgoole, E.L., Pasteris, J.D.	Interpretation of the Sulfide Assemblages in a Suite of Xenoliths from Kilbourne Hole, New Mexico.	Geological Society of America (GSA), Vol. 17, No. 3, P. 157. (abstract.).	United States, New Mexico, Colorado Plateau	Petrography, Analyses
DS1985-0165 1985	Eby, G.N.	Strontium and Lead Isotopes, Uranium and Thorium Chemistry of the alkaline Montregian and White Mountain Igneous Provinces Eastern North America.	Geochimica et Cosmochimica Acta ., Vol. 49, No. 5, MAY PP. 1143-1154.	Canada, United States, Quebec, Appalachia, Vermont, New York	Geochronology
DS1985-0167 1985	Eby, G.N.	The Montregian Hills and White Mountain Alkaline Igneous Provinces, Eastern North America.	Conference Report of The Meeting of The Volcanic Studies Gro, 1P. ABSTRACT.	United States, Appalachia, Canada, Quebec	Geochronology, Petrogenesis
DS1985-0169 1985	Edgar, A.D., Arima, M.	Fluorine and Chlorine Contents of Phlogopites Crystallized from ultrapotassic Rock Compositions in High Pressure Experiments- Implications for halogen Reservoirs in Source Regions.	American MINERALOGIST., Vol. 70, No. 5-6, PP. 529-536.	Canada, Ontario, United States, State Line, Wyoming, Leucite Hills, Uganda	Petrology Wolgidite
DS1985-0171 1985	Eggler, D.H., Mccallum, M.E., Kirkley, M.B.	Kimberlite-transported Nodules from Colorado Wyoming Enrichment of Shallow Lithosphere by Metasomatism	Geological Society of America (GSA), Vol. 17, No. 3, P. 157. (abstract.).	United States, Colorado, Wyoming, State Line	Ariiegite, Griquaite, Websterite
DS1985-0174 1985	Ericsson, S.C., Wones, D.R.	The Parks Pond Pluton: a Mantle Derived Mafic Granite	Geological Association of Canada (GAC)., Vol. 10, P. A17, (abstract.).	United States, Appalachia, Maine	Mineral Chemistry, Petrography
DS1985-0177 1985	Esperanca, S., Carlson, R.W., Shirey, S.B.	Isotopic Characteristics of Lower Crust Under Central Arizona: Evidence from Xenoliths in the Camp Creek High K Latites.	Eos, Vol. 66, No. 46, NOVEMBER 12, P. 1110. (abstract.).	United States, Colorado Plateau, Arizona	Navajo Field, Geochemistry
DS1985-0178 1985	Esperanca, S., Holloway, J.R.	An Experimental Study of Mafic Minette from Buell Park, Arizona.	Geological Association of Canada (GAC)., Vol. 10, P. A17. (abstract.).	United States, Arizona, Colorado Plateau	Mineral Chemistry
DS1985-0192 1985	Flohr, M.J.K., Ross, M.	Pyroxene Zonation Trends in Mafic Nepheline Syenite and Ijolite, Diamond Jo Quarry, Magnet Cove Igneous Alkalic Complex, Arkansaw.	Geological Society of America (GSA), Vol. 17, No. 7, P. 584. (abstract.).	United States, Gulf Coast, Arkansas, Greenland, Canada, Ontario	Geochemistry, Petrography, Qoroq, Coldwell
DS1985-0193 1985	Flohr, M.J.K., Ross, M.	Nepheline Syenite, Quartz Syenite and Ijolite from the Diamond Jo Quarry, Magnet Cove, Arkansaw.	Alkalic Rocks And Carboniferous Sandstones Ouachita Mountain, PP. 63-75.	United States, Gulf Coast, Arkansas, Hot Spring County	Related Rocks
DS1985-0195 1985	Forbes, R.B.	Prospecting for Diamonds in Alaska	Alaska Mins And Geology, Vol. 34, No. 2, P. 7.	United States, Alaska	Diamond Occurrence
DS1985-0207 1985	Futa, K., Armbrustmacher, T.J.	Combined Rubidium-strontium and Samarium-neodymium (sm-nd) Systems Study on Three Alkaline Intrusive Complexes in Northwestern Montana.	Geological Society of America (GSA), Vol. 17, No. 3, P. 159. (abstract.).	United States, Montana, Rocky Mountains	Isotope, Geochronology, Rainy Creek, Haines Point, Skalkaho
DS1985-0220 1985	Gay, S.P.Jr.	Latest Age Dating Results in South Central Kansas: Incompatible with History of Precambrian Events As Reconstructed From Newmag* Basement Mapping Studies.	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 17. (abstract.).	United States, Central States, Kansas	Geotectonics, Geophysics
DM1985-0824 1985	Globe & Mail	Laxative Used to Find Diamond	Globe And Mail, Oct. 17, P. A18.	United States, Texas	Theft
DS1985-0245 1985	Gray, F., Page, N.J., Wilson, S.A., Carlson, R.R.	Contrasting Petrology and Platinum Group Elements (pge) Geochemistry of Zoned Ultramafic Complexes, Klamath Mountains, California and Oregon.	Canadian Mineralogist., Vol. 23, PT. 2, MAY P. 304. (abstract.).	United States, West Coast, California, Oregon	Geochemistry, Geochronology, Petrography
DS1985-0248 1985	Green, J.C., Chandler, V.C.	Diabase Dikes of the Midcontinent Rift in Minnesota: a Record of Keweenawan Magmatism and Tectonic Development.	Geological Society of America (GSA), Vol. 17, No. 7, P. 597. (abstract.).	United States, Great Lakes, Minnesota	Midcontinent, Tectonics
DS1985-0262 1985	Hansen, M.C.	Additional Notes on Ohio Diamonds	Ohio Geology Newsletter., WINTER PP. 1-4.	United States, Ohio, Great Lakes	Diamond, History, Diamond Occurrence
DS1985-0270 1985	Harris, R.E., Hausel, W.D., Meyer, J.E.	Metallic and Industrial Minerals Map of Wyoming	Geological Survey WYOMING, 1:500, 000 IN COLOUR.	United States, State Line, Wyoming	Diamond Occurrences
DS1985-0273 1985	Hausel, W.D.	Diamond Bearing Kimberlite Pipes in Wyoming and Colorado. #3	Wyoming Geological Survey, Information Circular, 10P.	United States, State Line, Wyoming	Diamond, Geology, History, Sampling, Prospecting, Extracting
DS1985-0274 1985	Hausel, W.D., Mccallum, M.E., Roberts, J.T.	The Geology, Diamond Testing Procedures, and Economic Potential of the Colorado Wyoming Kimberlite Province- a Review.	Wyoming Geological Survey Report Inv., No. 31, 23P.	United States, State Line, Colorado, Wyoming	History, Geology, Location, Diamond Occurrences, Prospecting
DS1985-0276 1985	Hearn, B.C.JR.	Alkalic Ultramafic Magmas, Missouri Breaks, Montana: the Kimberlite-alnoite Continuum.	Geological Society of America (GSA), Vol. 17, No. 3, P. 161. (abstract.).	United States, Montana, Rocky Mountains	Blank
DS1985-0277 1985	Hearn, B.C.JR., Mcgee, E.S.	Research on Kimberlites and Applications to Diamond Prospecting.	United States Geological Survey (USGS) INF. Circular, No. 949, PP. 22-23.	United States, Montana, Michigan, Colorado, Great Lakes, Rocky Mountains	Current Review
DS1985-0278 1985	Herbert, R.	Stony Repsonse to the Diamond Hoax (editorial)	New Scientist., Vol. 106, No. 1458, MAY 30TH. PP. 43-44.	United States	Blank
DS1985-0288 1985	Hinze, W.J., et al.	Geolhysical and Geoplogical Studies of Possible Extensions Of the New Madrid Fault Zone: Annual Report for 1983. Dated Oct. 82 to Sept. 83.	Purdue University Department Geosciences, 60P.	United States	Midcontinent
DS1985-0296 1985	Howard, J.M.	Alkalic Rocks of Arkansaw	Alkalic Rocks And Carboniferous Sandstones Ouachita Mountain, PP. 76-85.	United States, Gulf Coast, Arkansas, Pennsylvania, Hot Spring County	Field Stop Guidebook
DS1985-0309 1985	Johnston, A.,Andnava, S.J.	Recurrence Rates and Probability Estimates for the New Madrid Seismic Zone.	Journal of Geophysical Research, Vol. 90, No. B5, JULY 10TH. PP. 6737-6753.	United States, Central States, Gulf Coast, Arkansas, Missouri, Tennessee	Midcontinent, Mississippi Embayment, Tectonics
DS1985-0310 1985	Johnston, A.D., Stout, J.H., Murthy, V.R.	Geochemistry and Origin of Some Unusually Oxidized Alkaline rocks from Kaluai, Hawaii.	Journal of VOLCANOLOGY, Vol. 25, No. 3-4, JULY PP. 225-248.	United States, Hawaii	Geochemistry
DS1985-0331 1985	Kaygi, P.B.O, Donnell, G.P., Welland, M.J.	Stratigraphy and Tectonic Development of the Southern Ouachita Thrust Belt- Implications of New Subsurface Data, Arkansas.	Geological Society of America (GSA), Vol. 17, No. 7, P. 624. (abstract.).	United States, Gulf Coast, Arkansas, Oklahoma	Tectonics
DS1985-0332 1985	Keating, S.J., Arculus, R.J.	Thermobarometry of Cumulate Xenoliths: Implications for Basalt Ponding Under the Colorado Plateau, Arizona.	Geological Society of America (GSA), Vol. 17, No. 7, P. 624. (abstract.).	United States, Colorado Plateau, Arizona	Petrology
DS1985-0334 1985	Keller, W.D., Stone, C.G., Hoersch, A.L.	Textures of Paleozoic Chert and Novaculite in the Ouachita Mountains of Arkansaw and Oklahoma and Their Geological Significance.	Geological Society of America (GSA) Bulletin., Vol. 96, No. 11, NOVEMBER PP. 1353-1363.	United States, Gulf Coast, Arkansas, Oklahoma	Petrography
DS1985-0335 1985	Kempton, P.D.	Styles of Metasomatism in the Mantle.. Implications for Alkali Basalt Genesis.	Geological Society of America (GSA), Vol. 17, No. 3, P. 163. (abstract.).	United States, Colorado Plateau	Spinel Lhzerolite, Geronimo
DS1985-0341 1985	Kilinc, A., Savage, B.	Geochemistry and Geothermometry of Elliott County, Kimberlite Megacrysts and Ultramafic Xenoliths.	Eos, Vol. 66, No. 18, APRIL 30TH. P. 393. (abstract.).	United States, Kentucky, Appalachia	Mineral Chemistry
DS1985-0345 1985	King, J.	Gems from the Crater	Murfreesboro Diamond., APRIL 17, P. 11.	United States, Gulf Coast, Arkansas, Pennsylvania	History News Item
DS1985-0348 1985	Klobcar, C.L., Taylor, L.A.	Mn Ilmenites from the Norris Kimberlite: Metasomatism in The Mantle of the Southern Appalachians.	Geological Society of America (GSA), Vol. 17, No. 7, P. 630. (abstract.).	United States, Appalachia, Tennessee, Eastern	Petrology, Petrography
DS1985-0378 1985	Lam, CHI-KIN, Yarger, H.L.	Preliminary Investigation of New Kansas Gravity Map	Geological Society of America (GSA), Vol. 17, No. 5, MARCH P. 297. (abstract.).	United States, Central States, Kansas	Gravity, Geophysics
DM1985-0866 1985	Lapidary Journal	Diamonds are Forever? J.d. Mcfarland Estimated Diamonds From Crater of Diamonds and Their Range of Ages.	Lapidary Journal, Vol. 39, No. 7, OCTOBER P. 9.	United States, Gulf Coast, Arkansas	Geochronology
DS1985-0383 1985	Larson, E.E., Patterson, P.E., Curtis, G., Drake, R., Mutschler.	Petrologic, Paleomagnetic, and Structural Evidence of a Paleozoic Rift System in Oklahoma, New Mexico, Colorado, and Utah.	Geological Society of America (GSA) Bulletin., Vol. 96, No. 11, NOVEMBER PP. 1364-1372.	United States, Gulf Coast, Colorado Plateau, Oklahoma, New Mexico, Colorado	Geotectonics
DS1985-0392 1985	Lillie, R.J.	Tectonically Buried Continent/ocean Boundary, Ouachita Mountains, Arkansaw.	Geology, Vol. 13, PP. 18-21.	United States, Arkansas, Gulf Coast	Mid Continent
DM1985-0890 1985	London Mining Journal	Diamonds for Lac	London Mining Journal, Vol. 305, No. 7829, P. 201.	United States, State Line, Colorado, Larimer County	Prospecting, Superior
DS1985-0401 1985	Lowe, D.R.	Ouachita Trough: Part of a Cambrian Failed Rift System	Geology, Vol. 13, No. 11, NOVEMBER PP. 790-793.	United States, Gulf Coast, Arkansas, Oklahoma	Geotectonics
DS1985-0402 1985	Luedke, R.G., Smith, R.L.	Map Showing Distribution, Composition and Age of Late Cenozoic Volcanic Centers in Colorado, Utah and Southwestern Wyoming - 1 : 1 Mil	United States Geological Survey (USGS) MAP, No. MI I-1091-B, 1: 1, 000, 000	United States, Colorado Plateau, Colorado, Utah, Wyoming	Blank
DS1985-0409 1985	Mansker, W.L., Richards, B.D., Cole, G.P.	A Review and Comparison of Known and Recently Discovered Kimberlites in the Riley County, Kansas District.	Preprint Paper Geological Society of America (gsa) Southeastern Section- Arkans, 22P.	United States, Central States, Kansas	Kimberlite Occurrences, Geology, Age, Geophysics, Magnetic
DS1985-0410 1985	Mansker, W.L., Richards, B.D., Cole, G.P.	A Review and Comparison of Kansas Kimberlites	Geological Society of America (GSA), Vol. 17, No. 3, P. 166. (abstract.).	United States, Kansas, Central States	Winkler, Stockdale, Bala
DS1985-0414 1985	Marks, J.E.	Multispectral Remote Sensing Techniques Applied to Exploration for Kimberlite Distremes, Laramie Range, Wyoming-colorado.	Msc. Thesis, University Wyoming, 164P.	United States, State Line, Colorado, Wyoming, Laramie Range	Remote Sensing
DS1985-0424 1985	Mauger, R.L.	The Petrology and Plate Tectonic Interpretation of Minette Dikes Near Harrisburg, North Carolina.	Geological Society of America (GSA), Vol. 17, No. 2, JANUARY P. 122. (abstract.).	United States, North Carolina, Appalachia	Petrography, Geochemistry, Mineral Chemistry, Genesis
DS1985-0425 1985	Mauger, R.L.	Early Carboniferous Minettes from the Charlotte Belt, South cental North Carolina, Usa	Geological Association of Canada (GAC)., Vol. 10, P. A37. (abstract.).	United States, North Carolina, Appalachia	Blank
DS1985-0428 1985	Mccallum, M.E.	Experimental Evidence for Fluidization Processes in Breccia pipe Formation.	Econ.geol., Vol. 80, No. 6, PP. 1523-1543.	United States, State Line, Wyoming, Colorado, Rocky Mountains, Utah, Montana	Mule Ear, Butte, Diatreme, Breccia Pipes, Review
DS1985-0432 1985	Mcfarland, J.D., Stolarz, T.	The Geologic History of the Crater of Diamonds State Park	Arkansaw STATE PARKS, 11P.	United States, Gulf Coast, Arkansas, Pennsylvania	History
DS1985-0433 1985	Mchone, J.G., Williams, N.A.	Tectonic Setting of Xenolithic Rich Alkalic Intrusions in New England and Adjacent Quebec	Geological Society of America (GSA), Vol. 17, No. 3, P. 167. (abstract.).	United States, Appalachia, New York, Canada, Quebec	Lamprophyre
DS1985-0439 1985	Menzies, M., Kempton, P., Dungan, M.	Interaction of Continental Lithosphere and Asthenosphere Melts Below the Geronimo Volcanic Field, Arizona Usa	Journal of PETROLOGY, Vol. 26, No. 3, AUGUST PP. 663-693.	United States, Colorado Plateau, Arizona	Mantle Evolution
DS1985-0443 1985	Meyer, H.O.A., Mitchell, R.H.	Sapphire Bearing Lamprophyre from Yogo Gulch, Montana	Geological Association of Canada (GAC)., Vol. 10, P. A39, (abstract.).	United States, Montana, Rocky Mountains	Minette
DS1985-0446 1985	Mickelson, D.M.	Lithostratigraphy and Glacial Events in the Great Lakes Region: a Conceptual Model.	Geological Society of America (GSA), Vol. 17, No. 5, MARCH P. 318. (abstract.).	United States, Great Lakes	Geomorphology
DS1985-0454 1985	Milton, C.	Kassite Cati2o4 (oh)2 from Magnet Cove, Arkansaw	Geological Society of America (GSA), Vol. 17, No. 3, P. 168. (abstract.).	United States, Gulf Coast, Arkansas, Hot Spring County, Russia	Mineralogy, Terminology
DS1985-0455 1985	Milton, C., Vitaliano, D.B.	Moissanite Sic, a Geological Aberration	Geological Society of America (GSA), Vol. 17, No. 7, P. 665. (abstract.).	United States, Gulf Coast, Arkansas	Mineralogy
DS1985-0465 1985	Morgan, J.W., Czamansk, G.K., Wanless, G.A.	Origin and Evolution of the Alkalic Ultramafic Rocks in The coyote Peak Diatreme, Humboldt County, California.	Geochimica et Cosmochimica ACTA., Vol. 49, No. 3, PP. 749-759.	United States, California, West Coast	Blank
DS1985-0466 1985	Morgan, P., Swanberg, C.A.	On the Cenozoic Uplift and Tectonic Stability of the Colorado Plateau.	Journal of GEODYNAMICS, Vol. 3, No. 1-2, JULY PP. 23-38.	United States, Colorado Plateau	Geotectonics
DS1985-0468 1985	Mullen, E.D., Murphy, S.G.	Mineralogy and Petrology of Lamprophyric and Carbonatite Dikes, Central Arkansaw.	Geological Society of America (GSA), Vol. 17, No. 3, P. 185. (abstract.)	United States, Gulf Coast, Arkansas, Hot Spring County	Kersantite, Polzenite, Magnet Cove
DS1985-0469 1985	Mullen, E.D., Murphy, S.G.	Petrology of the Arkansaw Alkalic Province: a Summary of Previous and New Investigations.	Alkalic Rocks And Carboniferous Sandstones Ouachita Mountain, PP. 34-62.	United States, Gulf Coast, Arkansas, Pennsylvania, Hot Spring County, Garland County	Occurrences, Prairie Creek, Petrology, Lamproite, Carbonatite
DS1985-0470 1985	Mullen, E.D., Petty, W.B.	Petrologic Relations Among Syenites and Lamprophyric Rocks, arkansaw Alkalic Province.	Geological Association of Canada (GAC)., Vol. 10, P. A42. (abstract.).	United States, Gulf Coast, Arkansas	Petrology
DS1985-0471 1985	Murfreesboro News	Poll Favours Diamond Mining	Murfreesboro Newspaper., Vol. 10, No. 35, APRIL 10TH. P. 1.	United States, Gulf Coast, Arkansas, Pennsylvania	News Item
DS1985-0473 1985	Mutschler, F.E., Griffen, M.E., Stevens, D.S., Shannon, S.S.JR.	Precious metal deposits related to alkaline rocks in the North American Cordillera- an interpretative review	Transactions Geological Society of South Africa, Vol. 88, pp. 355-377	United States	Cordillera, Carbonatite
DM1985-0906 1985	National Jeweler	Diamond Found in Alaska	National Jeweler., Feb. 16TH.	United States, Alaska, Circle District	News Item. In Gem Notes In Gems And Gemology, Summer P. 118
DS1985-0486 1985	Nelson, B.K., Depaolo, D.J.	Rapid Production of Continental Crust 1.7 to 1.9 by Ago Nd Isotopic Evidence from the Basement of the North American Mid-continent.	Geological Society of America (GSA) Bulletin., Vol. 96, No. 6, JUNE PP. 746-754.	United States, Canada	Mid-continent, Tectonics
DS1985-0487 1985	Nelson, K.D., Arnow, J.A., Mcbride, J.H., Wille, D.M., Brown, L.	New Cocorp Profiling in the Southeastern U.s.: Major Features and Regional Implications.	Geological Society of America (GSA), Vol. 17, No. 7, P. 675. (abstract.).	United States, Appalachia, Georgia	Midcontinent
DS1985-0490 1985	Neville, S.L., Schiffman, P., Sadler, P.	Ultramafic Inclusions in Late Miocene Alkaline Basalts From fry and Ruby Mountains, San Bernardino County, California.	American MINERALOGIST., Vol. 70, No. 7-8, PP. 668-677.	United States, West Coast, California	Websterite, Lherzolite, Harzburgite
DS1985-0494 1985	Nielson-Pike, J.E., Frey, F.A., Richter, F.M., Mysen, B.O.	Multistage Mantle Processes	Geology, Vol. 13, No. 10, PP. 742-743.	United States, West Coast, California, Spain, South Africa, Hawaii, Australia	Kimberlite, Genesis, Penrose Conference Discussion
DS1985-0502 1985	O'brien, H.E., Irving, A.J., Mccallum, I.S.	Complex Zoning of Clinopyroxene in Shonkinites from Mafic Phonolites, Highwood Mountains, Montana: Evidence for Periodic Mixing with a K Rich Bananitic Magma.	Geological Society of America (GSA), Vol. 17, No. 3, P. 187. (abstract.).	United States, Montana, Rocky Mountains	Mineralogy
DS1985-0511 1985	Padgett, J.P.	Exploration for Kimberlite in the Green Mountain Magnolia Area, Boulder county, Colorado.	Msc. Thesis, Colorado State University, 268P.	United States, State Line, Colorado	Geology, Lithology, Structure, Diatreme, Kimberlite, Mineralogy
DS1985-0516 1985	Parkhurst, D.	Prospecting for Diamonds in Alaska.	California Mining Journal, Vol. 55, No. 3, NOVEMBER PP. 44-47.	United States	Prospecting
DS1985-0524 1985	Peterman, Z.E., Zartman, R.E.	The Early Proterozoic Trans-hudson Orogen in the Northern Great Plains of the United States.	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 30. (abstract.).	United States, Rocky Mountains, North Dakota, South Dakota, Montana, Willis	Geotectonics
DS1985-0525 1985	Peterson, R.M.	Mapping Paleostructures from Time Related Aeromagnetic Lineaments and Photolineaments.	Geological Society of America (GSA), Vol. 17, No. 7, P. 687. (abstract.).	United States, Appalachia, Kentucky	Geotectonics
DS1985-0542 1985	Pratt, W.P.	Midcontinent Strategic and Critical Minerals Project	Geological Society of America (GSA), Vol. 17, No. 7, P. 692-3. (abstract.).	United States	Midcontinent, Basement Terranes
DS1985-0558 1985	Reid, M., Hart, S.R.	Importance of Sedimentary Protoliths to the Lower Crust Exemplified by the Kilbourne Hole Paragenesis- Sr-neodymium-palladium Isotopegeochemistry.	Eos, Vol. 66, No. 46, NOVEMBER 12, P. 1110. (abstract.).	United States, Colorado Plateau, New Mexico	Geochemistry
DS1985-0578 1985	Sack, R.O., Carmichael, I.S.E.	Experimental Constraints on the Genesis of Alkalic Basalt Lavas.	Geological Society of America (GSA), Vol. 17, No. 3, P. 189. (abstract.).	East Africa, United States, Crazy Mountains	Kalsilite, Leucite
DM1985-0911 1985	Sagov, M.	Scientists Find New Way to Make Synthetic Diamond in United States	Diamond News and South African Jeweller, Vol. 49, No. 2, November p. 13	United States	Diamond Morphology
DS1985-0582 1985	Salpas, P.A., Taylor, L.A., Shervais, J.W.	Blueball, a New Kimberlite from Arkansaw	Geological Society of America (GSA), Vol. 17, No. 7, P. 705. (abstract.).	United States, Gulf Coast, Arkansas, Tennessee	Geochemistry, Petrography, Mineral Chemistry
DS1985-0583 1985	Salters, V.J.M., Barton, M.	The Geochemistry of Ultrapotassic Lavas from the Leucite Hills, Wyoming.	Eos, Vol. 66, No. 46, NOVEMBER 12, P. 1109. (abstract.).	United States, Colorado Plateau, Leucite Hills	Geochemistry
DS1985-0586 1985	Sargent, M.L., Buschbach, T.C.	Map of the Morphology of the Top of Precambrian Crystalline rocks in Illinois.	Geological Society of America (GSA), Vol. 17, No. 5, MARCH P. 324. (abstract.).	United States, Great Lakes, Illinois	Blank
DS1985-0594 1985	Schulze, D.J.	Evidence for Primary Kimberlitic Liquids in Megacrysts From kimberlites in Kentucky, United States (us)	Journal ofGEOLOGY, Vol. 93, PP. 75-79.	United States, Kentucky, Appalachia	Inclusions, Mineralogy, Garnet
DS1985-0601 1985	Serpa, L.	Structure of the Precambrian Keweenawan Rift in Kansas	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 33. (abstract.).	United States, Central States, Kansas	Geotectonics
DS1985-0611 1985	Shervais, J.W., Taylor, L.A.	Magma Mixing and Kimberlite Genesis: Mineralogical Petrological and Trace Element Evidence.	Geological Society of America (GSA), Vol. 17, No. 3, P. 191. (abstract.).	United States, Pennsylvania, Appalachia, Georgia	Inclusions, Mineral Chemistry
DS1985-0615 1985	Shumaker, R.C.	Structural Development of Paleozoic Continental Basins of Eastern North America.	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 34. (abstract.).	United States, Great Lakes, Illinois, Michigan, Gulf Coast, Oklahoma, Arkansas	Geotectonics
DS1985-0617 1985	Sims, P.K.	Precambrian Basement Map of the Midcontinent Usa	United States Geological Survey (USGS) Open File, No. 85-604, 16p. 1 map. 1: 1, 000, 000 scale Black and whit	United States, Midcontinent	Tectonics
DS1985-0618 1985	Sims, P.K., Peterman, Z.E.	Early Proterozoic Tectonics in the North Central United States.	Geological Society of America (GSA), Vol. 17, No. 7, P. 718. (abstract.).	United States, Central States, Nebraska, Kansas, Missouri	Geochronology, Midcontinent
DS1985-0624 1985	Smith, D.	A Comparative Study of Garnet Peridotite Nodules from Potassic Volcanic Rocks and Kimberlite.	Geological Society of America (GSA), Vol. 17, No. 3, P. 192. (abstract.)	United States, Colorado Plateau, Lesotho	Thumb, Minette, Mineral Chemistry, Metasomatism
DS1985-0625 1985	Smith, D., Wilson, C.R.	Garnet-olivine Equilibration During Cooling in the Mantle	American Mineralogist., Vol. 70, No. 1-2, PP. 30-39.	South Africa, United States, Colorado Plateau	Inclusions, Microprobe
DS1985-0631 1985	Smith, Y.N.	Oxygen Isotope Evidence for Hydrothermal Alteration in Buried Precambrian Basement Rocks from the Midwest, Usa	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 34. (abstract.).	United States, Great Lakes, Ohio, Illinois	Geotectonics
DS1985-0641 1985	Stearns, R.G., Wyatt, D.E.	Segmentation of Reelfoot Rift As Evidenced by Geophysics, Groundwater and Stream Lineations.	Geological Society of America (GSA), Vol. 17, No. 5, MARCH P. 328.	United States, Missouri	Mid Continent
DS1985-0657 1985	Swanberg, C.A., Morgan, P.	Silica Heat Flow Estimates and Heat Flow in the Colorado Plateau and Adjacent Areas.	Journal of GEODYNAMICS, Vol. 3, No. 1-2, JULY PP. 65-86.	United States, Colorado Plateau	Heat Flow, Geothermal
DS1985-0658 1985	Takahashi, E., Scarfe, C.M.	Melting of Peridotite to 14 Gpa and the Genesis of Komatiite	Nature., Vol. 315, No. 6020, JUNE 13TH. PP. 566-568.	Lesotho, United States, Colorado Plateau, New Mexico	Lherzolite, Kilbourne Hole, Thaba Putsoa, Chemical Analysis
DS1985-0664 1985	Thomas, W.A.	The Appalachian Ouachita Connection: Paleozoic Orogenic Belt at the Southern Margin of North America.	Annual REVIEW EARTH PLANET. SCI., Vol. 13, PP. 175-199.	United States, Gulf Coast, Arkansas, Oklahoma, Texas	Tectonics, Mid Continent, Mississippi Embayment, Geotectonics
DS1985-0671 1985	Tilton, G.R., Frost, D.M., Kwon, SUNG TACK.	Isotopic Relationships in Arkansaw Cretaceous Alkalic Complexes.	Geological Society of America (GSA), Vol. 17, No. 3, P. 194. (abstract.).	United States, Gulf Coast, Arkansas, Hot Spring County, Canada, Quebec	Isotope
DS1985-0677 1985	Treiman, A.H.	Low Alkali Carbonatites in Alkaline Complexes: Seperate Mantle Sources for Carbonate and Alkalis?	Geological Society of America (GSA), Vol. 17, No. 3, P. 194. (abstract.).	United States, Gulf Coast, Arkansas, Hot Spring County, Canada, Quebec	Ijolite, Carbonatite
DS1985-0691 1985	Van schmus, W.R., Bickford, M.E.	Extension of Early Proterozoic Orogenic Belts Into Midcontinent United States (us)	6th. International Conference Basement Tectonics, Held Sante Fe, Septem, P. 38. (abstract.).	United States, Central States, Kansas, Iowa, Nebraska, Colorado Plateau, Wyoming	Geotectonics
DS1985-0692 1985	Van schmus, W.R., Hinze, W.J.	The Mid Continent Rift System (review)	Annual Review Earth Science., Vol. 13, PP. 345-383.	United States	Mid-continent
DS1985-0694 1985	Vaniman, D., Laughlin, A.W., Gladney, E.S.	Navajo Minettes in the Cerros de la Mujeres, New Mexico	Earth Plan. Sci. Letters, Vol. 74, PP. 69-80.	United States, Colorado Plateau, New Mexico	Microprobe Analyses, Geochemistry, Age Dating, Geochronology
DS1985-0708 1985	Waldman, M.A., Mccandless, T.E., Dummett, H.T.	Geology and Mineralogy of the Twin Knobs # 1 Lamproite Pikecounty, Arkansaw #2	Geological Society of America (GSA), Vol. 17, No. 3, P. 196. (abstract.).	United States, Gulf Coast, Arkansas, Pennsylvania	Geochronology, Evaluation
DS1985-0709 1985	Waldman, M.A., Mccandless, T.E., Dummett, H.T.	Geology and Mineralogy of the Twin Knobs # 1 Lamproite Pikecounty, Arkansaw #1	Preprint of Paper Presented Geological Society of America (gsa), 17P. 12 FIGS. 1 TABLE.	United States, Gulf Coast, Arkansas, Pennsylvania	Lamproite, Prospecting, Geophysics, Geochemistry
DS1985-0711 1985	Wandless, G.A., Padovani, E.R.	Trace Element Geochemistry of Lower Crustal Xenoliths from kilbourne Hole Maar, New Mexico.	Eos, Vol. 66, No. 46, NOVEMBER 12, P. 1110. (abstract.).	United States, Colorado Plateau, New Mexico	Geochemistry
DS1985-0718 1985	Weiss, D.A., Ulmer, G.C., Buntin, T., Moats, M.A.	Fluid Inclusions and 10f Data: Group Ii Composite Nodules from San carlos, Arizona.	Eos, Vol. 66, No. 18, APRIL 30TH. P. 392. (abstract.).	United States, Arizona, Colorado Plateau	Blank
DS1985-0719 1985	Welland, M.J., Cambray, F.W., Voight, D.S.	Structural and Stratigraphic Fabric of the Ouachita Thrustbelt, Oklahoma and Arkansaw: a Paleozoic Accretionary Complex.	Geological Society of America (GSA), Vol. 17, No. 7, P. 746. (abstract.).	United States, Gulf Coast, Arkansas, Oklahoma	Geotectonics
DS1985-0727 1985	Whitney, J.A., Stormer, J.C.	Mineralogy, Petrology and Magmatic Conditions from the Fish canyon Tuff, Central San Juan Volcanic Field, Colorado - Review.	Journal of PETROLOGY, Vol. 26, No. 3, AUGUST PP. 726-762.	United States, Colorado Plateau, Colorado	Mantle Evolution
DS1985-0730 1985	Wilband, J.T.	Magmatic Processes During the Midcontinent Rift Interval In northern Michigan: Chemical and Isotopic Constraints.	31st. Annual Institute On Lake Superior Geology, Held Kenora, TECHICAL SESSION AND ABTSRACT VOLUME, P. 97.(abstract.).	United States	Mid Continent
DS1985-0732 1985	Wille, D.M., Brown, L.D., Nelson, D.K., Arnow, J.A., Mcbride, J.	The Surrency Bright Spot: Possible Evidence for Fluid in The Deep Crust.	Geological Society of America (GSA), Vol. 17, No. 7, P. 751. (abstract.).	United States, Appalachia, Georgia	Midcontinent, Geotectonics, Suture Zone, Rift
DS1985-0761 1985	Zartman, R.E., Howard, J.M.	Uranium-thorium-lead AGES of LARGE ZIRCON CRYSTALS from the POTASH SULFUR SPRINGS IGNEOUS COMPLEX, GARLAND COUNTY, Arkansaw.	Geological Society of America (GSA), Vol. 17, P. 198. (abstract.).	United States, Gulf Coast, Arkansas, Garland County	Geochronology
DS1986-0126 1986	Carmichael, R.S., Black, R.A.	Analysis and use of Magsat satellite magnetic dat a for interpretation of crustal structure and character in the United States midcontinent	Phys. Earth Planet. Science, Vol. 44, No. 4, December pp. 333-347	United States	Geophysics, Midcontinent
DS1986-0356 1986	Helmstaedt, H., Schulze, D.J.	Petrologic and geotectonic significance of eclogite xenoliths from Navajodiatremes, Colorado Plateau	Geological Society of America, Vol. 18, No. 2, p. 116. Abstract	United States, Colorado Plateau	Eclogite
DS1986-0363 1986	Hinze, W.J., Kane, M.F., O'Hara, N.W., Reford, M.S., Tanner, J., Weber	The utility of regional gravity and magnetic anomaly maps	Society of Exploration Geophysicists, Special Volume, 400p	United States, Canada	Geophysics
DS1986-0498 1986	Lister, B., Cogger, M.	The preparation and evaluation of bastnasite	Geostandards Newsletter, Vol. 10, No. 1, April pp. 33-59	United States, California	Mountain Pass, Flurocarbonate, Carbonatite, Rare earth
DS1986-0681 1986	Rowan, L.C., Kingston, M.J., Crowley, J.K.	Spectral reflectance of carbonatites and related alkalic igneous rocks:selected samples from four North American localities	Economic Geology, Vol. 81, No. 4, pp. 857-871	United States	Carbonatite, Remote sensing
DS1986-0827 1986	Van Allen, B.R., Emmons, D.L., Paster, T.P.	Carbonatite dike of the Chupadera Mountains, Socorro County, New Mexico	New Mexico Geology, Vol. 8, No. 2, May pp. 25-29., p. 40	United States, Colorado Plateau, New Mexico	Carbonatite
DS1986-0888 1986	Yoshida, T., Aoki, K.I.	Geochemistry of some continental basalts	The Science reports of the Tohoku University, Third series, Vol. XVI No. 3, Dec. pp. 367-394	United States	Minette, Alkaline rocks
DM1987-0841 1987	Beverley, J.	America sells industrial diamonds	Diamond News and South African Jeweller, Vol. 50, No. 10, July pp. 27-30	United States	Sales
DS1987-0167 1987	Duebendorfer, E.M., Houston, R.S.	Proterozoic accretionary tectonics at the southern margin of the Archean Wyoming craton	Geological Society of America (GSA) Bulletin, Vol. 98, pp. 554-568	United States, Wyoming	Tectonics
DS1987-0181 1987	Eggler, D.H., Dudas, F.O., Hearn, B.C., McCallum, M.E., McGee, E.S.	Lithosphere of the continental United States: Xenoliths in Kimberlites and other alkaline magmas	in: Nixon, P.H. ed. Mantle xenoliths, J. Wiley, pp. 41-58	United States, Montana, Colorado Wyoming, Kansas, Arkansas, Michigan	Tennessee, Kentucky, Pennsylvania, New York, Wyoming, Arizon
DS1987-0199 1987	Eyles, N., Westgate, J.A.	Restricted regional extent of the Laurentide ice sheet in the Great Lakes basins during early Wisconsin glaciation	Geology, Vol. 15, No. 6, June pp. 537-540	United States	Geomorphology, Great Lakes
DS1987-0293 1987	Hildenbrand, T.G.	Magnetic and gravity features of central United States	Geological Society of America, Vol. 19, No. 4, March p. 203-204. (abstract)	United States	Midcontinent, Geophysics
DM1987-0891 1987	International Mining	Diamonds, 1987	International Mining, Review of 1986 - yearbook 1987, Vol. 4, No. 8, p. 23	Australia, South Africa, United States, Canada	Prospecting
DS1987-0341 1987	Keller, G.V.	Conductance map of the United States (Progress report)	Physics of the Earth and Planetary Interiors, Vol.45, pp.216-225	United States	Midcontinent, Structure
DS1987-0474 1987	Mid Continent Rift System Conference	Symposium on Mid Continent Rift	University of Michigan, Sept.. 23-25	United States	Tectonics, Structure
DM1987-0946 1987	Mining Survey (Johannesburg)	Strategic minerals and the USA	Mining Survey (Johannesburg), Vol. 1987, No. 1-3, pp. 3-29	United States	Diamonds
DS1987-0528 1987	Nixon, P.H.	The American plates-introduction	in: Nixon, P.H. ed. Mantle xenoliths, J. Wiley, pp. 13-22	United States, Canada, Greenland, Mexico, South America	Regional geology, Xenolithd
DS1987-0562 1987	Pallister, J.S., Aleinikoff, J.N.	Gabbroic plutons south of the Cheyenne belt: underpinnings of an early Proterozoic continental margin arc	Geological Society of America, Vol. 19, p. 325. abstract only	United States	Tectonics
DS1987-0594 1987	Pratt, W.P., Sims, P.K.	The U.S. Midcontinent: a new frontier for mineral exploration	Epsiodes, Vol. 10, No. 4, December pp. 303-307	United States	Tectonics, Mid-continent
DS1987-0608 1987	Reed, J.C.Jr, Bickford, M.E., Premo, W.R., Aleinikoff, J.N.	Evolution of the early Proterozoic Colorado province:constraints from uranium-lead (U-Pb) (U-Pb) geochronology	Geology, Vol. 15, No. 9, September pp. 861-865	United States, Colorado, Wyoming	Geochronology
DS1987-0607 1987	Reed, J.C.Jr.	Precambrian geology of the United States (US)	Episodes, Vol. 10, No. 4, December pp. 243-247	United States	Overview
DS1987-0656 1987	Schulz, K.J.	Early Proterozoic evolution of a rifted continental margin -the Lake superior region	Geological Society of America, Vol. 19, No. 4, March p.243. (abstract)	United States	Lake Superior region, Tectonics
DS1987-0808 1987	Wooley, A.R.	The alkaline igneous rocks and carbonatites of the world part. 1, North And south America	Cambridge University of Press, 224p	Canada, United States	Carbonatite, Alkaline rocks
DS1988-0035 1988	Balfour, I.	The McLean diamond. Famous diamonds of the world XXXVI	Indiaqua, No. 51, 1988/III, pp. 145-148	United States	Star of the East, Hope, McLean, Star of the South
DS1988-0079 1988	Boyd, S.R.	A study of carbon and nitrogen isotopes from the earth's mantle	Ph.D. Open University, 360p. available University of Microfilms $ 55.00	Australia, Africa, Russia, United States, Zaire, Central Africa	Sierra Leone, Angola, Botswana, Geochemistry, diamond
DS1988-0218 1988	Fitton, J.G., James, D., Kempton, P.D., Ormerod, D.S., Leeman, W.P.	The role of lithospheric mantle in the generation of late Cenozoic basic magmas in the Western UnitedStates	Journal of Petrology, Special Volume 1988- Oceanic and Continental, pp. 331-349	United States, Colorado Plateau	Hopi Buttes
DS1988-0347 1988	Keller, G.R.	The development of gravity and magnetic studies emphasizing articles published in GSA Bulletin	Geological Society of America (GSA) Bulletin, Vol. 100, No. 4, April pp. 469-478	United States	Midcontinent
DS1988-0573 1988	Ritchey, J.L.	Economic reconnaissance of selected placer deposits of the U.S. exclusive economic zone	Marine Mining, Vol. 7, No. 3, pp. 219-232. Database # 17366	United States	Placers, Economics- legal
DS1988-0576 1988	Rock, N.M.S.	Which rocks really contain diamonds?	Ninth Australian Geol. Convention, Geological Society of Australia Publishing, Held Feb., No. 12, abstract volume, pp. 338-339	Australia, United States, Zambia, India	Lamproite
DS1988-0675 1988	Sturdevant, J.A.	Toward a Federal Land Information System: experiences and issues	United States Geological Survey (USGS) Bulletin, No. 1852, 15p. $ 1.75	United States	Database -GIS
DS1988-0683 1988	Tanner, J.G.	Gravity anomaly map of North America	Geophysics: The leading edge, Nov. pp. 15-21.	Canada, United States	Geophysics - gravity, Map - brief outline
DS1989-0154 1989	Bourne, H.L.	Mineral royalties	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint held Las Vegas Feb. 27-March 2, 1989, No. 89-176, 6p. Database # 17651	United States	Economics, Legalities -brief outlines
DS1989-0351 1989	Dennett, J.T.	Radon: a geologic perspective	Geological Society of America (GSA) Fact Sheet, June 1989 10p. Database # 17947	United States	Radon, Overview
DM1989-1750 1989	Diamond News and South African Jeweller	Overview of Sibeka worldwide operations. MIBA sells 7, 9 m carats	Diamond News and South African Jeweller, No. 8, August p. 5, 7	United States	News item Brief exploration activity overview, Sibeka, MIBA.
DS1989-0380 1989	Dusansky, R.	Diamonds are a governments best friend- burden free taxes on goods valued for their values- comment andreply... by Ng Yk	American Economic Review, Vol. 79, No. 5, December pp. 1285-1290	United States	Economics, Diamonds
DS1989-0591 1989	Harper, C., Drury, M.J. editors.	Kimberlites in the Western Canadian Sedimentary Basin	Scientific Drilling, sedimentary basins, proceedings of a workshop Can., 1989, pp. 25-26	Western Canada, United States	News item, Drilling/continental Program
DS1989-0601 1989	Hausel, W.D., Erlich, E.I., Sutherland, W.M.	Timing of alkaline and ultramafic alkaline volcanism within the the Siberian and the North American ancient platforms	New Mexico Bureau of Mines Bulletin., Continental Magmatism Abstract Volume, Held, Bulletin. No. 131, p. 123. Abstract	United States,Russia	Tectonics, Alkaline
DS1989-0212 1989	Indiaqua	Sibeka's latest annual report... No. 69	Indiaqua, No. 54, 1989/III, p. 27, 29, 30	Central African Republic, China, Angola, United States, Democratic Republic of Congo, Brazil	News item, Sibeka annual report sumM.
DS1989-0715 1989	Johnson, E., Wood, B.J.	Oxidation states and rare earth elements (REE) contents of spinel lherzolite xenoliths:implications for metasomatic processes in the upper mantle	Eos, Vol. 70, No. 15, April 11, p. 510. (Abstract)	United States, Japan, Australia, France	Xenoliths, Lherzolite
DS1989-0717 1989	Johnson, K.E., Wood, B.J.	Closed system oxygen isotope behaviour in spinel lherzolite xenoliths:possible relations to oxidationstate	Eos, Vol. 70, No. 43, October 24, p. 1411. (Abstract)	United States, Australia, Japan, Germany, France	Geochronology, Xenoliths
DS1989-0737 1989	Jupp, P.E., Spurr, B.D.	Statistical estimation of a shock center: Slate Islands astrobleme	Mathematical Geology, Vol. 21, No. 2, pp. 191-198	Ontario, United States	Geostatistics
DM1989-1890 1989	London Mining Journal	U.S. Mining law	London Mining Journal, Vol.313, No. 8034, August 25, pp. 154-155	United States	Law, Mining
DS1989-1031 1989	Mineral Industry Surveys, United States Bureau of Mines	Industrial minerals supply /demand 1975- 1985. one page 'diamonds'	United States Bureau of Mines Mineral Industry Surveys, p. 33	United States	Diamond production, Import
DM1989-1911 1989	Navon, O	Theory of structure and hyperfine properties ofanomalous muonium in elemental semiconductors-diamond, silicon, and germaniuM.	Diamond World Review, No. 52, pp. 36-48 (even page nos.) and p. 76	United States, Canada, Arkansas	Tectonics, Overview
DS1989-1189 1989	Peeling, G.R.	The Canada U.S. free trade agreement and its effect on Canada's Pacific Rim mineral trade	Preprint - presentation at AAAS Annual Meeting, on Mineral Resources and, 13p. Database # 18057	Canada, United States	Economics, Trade
DS1989-1264 1989	Remote Sensing	Special issue on the Earth Observing System (EOS). Introduction: Eos data	Geoscience and Remote Sensing, Vol. 27, No. 2, March pp. 109-116. Issue pp. 109-242	United States	Geoscience and Remote Sensing, EOS data
DS1989-1307 1989	Roux, J.	Diamond mining update. Brief commentary on Argyle, Gem, Ashton	Indiaqua, No. 54, 1989/III, p. 55, 57	Australia, Botswana, Brazil, Guinea, United States	News item, Argyle, Gem, Aredor, Crystal
DM1989-1945 1989	South China Morning Post	Growing diamond crystals from sewer gas..	Indiaqua, No. 52, 1989/I, p. 43. (Jan. 1st.)	United States	News item, Diamond synthesis
DS1989-1461 1989	Strauss, S.D.	An inventory policy that went astray	Raw Materials Report, Vol. 6, No. 4, pp. 32-36. Database # 18228	United States	Strategic minerals, Economics
DS1989-1505 1989	Tollo, R.P., Gottfried, D.	Early Jurassic quartz normative magmatism of the eastern North Americanprovince: evidence for independent magmas and distinct sources	New Mexico Bureau of Mines Bulletin., Continental Magmatism Abstract Volume, Held, Bulletin. No. 131, p. 270 Abstract held June 25-July 1	United States, Appalachia, Midcontinent	Tectonics, Magma
DS1989-1527 1989	United States Bureau of Mines	Mineral commodity summaries. Diamond	Mineral Commodity Summaries, USBM., pp. 48-49	Global, United States	Economics, Industrial diamonds
DS1989-1528 1989	United States Bureau of Mines	Mineral issues -1989 competitiveness and regulations	United States Bureau of Mines Mineral Issues, 84p	United States	Economics, Mineral issues reviews
DS1989-1529 1989	United States Minerals Yearbook	Minerals Yearbook 1987Vol. II Area reports: Domestic and Vol. IIIInternational	U.s. Minerals Yearbook, 439p, 1164p	United States, Global	Book: ad, Minerals Yearbook
DS1989-1621 1989	Whitney and Whitney	U.S. State taxes. Study	Whitney and Whitney Inc. P.O. Box 12075, Reno, Nevada 89510, 145p. price?	United States	Taxation, Study -state laws
DS1990-0124 1990	Arbogast, B.F.	Quality assurance manual for the Branch of geochemistry... United States Geological Survey (USGS)	United States Geological Survey (USGS) Open File, No. 90-0668, 184p	United States	Geochemistry, Sample procedures
DS1990-0128 1990	Arkani-Hamed, J., Urquhart, W.E.S.	Reduction to the pole of the North American magnetic anomalies	Geophysics, Vol. 55, No. 2, February pp. 218-225	United States, Canada	Geophysics -magnetics, Crust
DS1990-0138 1990	Austin, G.T.	Gem stones; Minerals Yearbook, 1990	U.s.bureau Of Mines, Minerals Yearbook, 1989, 20p	United States	Diamonds covered, Prices/consumption/prospecting activities
DS1990-0139 1990	Austin, G.T.	Gem stones; U.S. Minerals Yearbook, 1990	U.s. Minerals Yearbook, Vol. 1, pp. 413-424	United States	Overview 1988, Production
DS1990-0140 1990	Austin, G.Y.	Gem stones; Mining Engineering, 1990	Mining Engineering, Vol. 42, No. 6, June pp. 563-564	United States, Global	Economics, Brief overview of world p
DS1990-0226 1990	Boulton, G.S., Clark, C.D.	The Laurentide ice sheet through the last Glacial cycle - the topology of drift lineations as a key to dynamic behaviour of former ice sheets	Transactions Royal Society. Edinburgh Earth Science, Vol. 81, pp. 327-348	Canada, United States, Europe	Geomorphology, Laurentide ice sheet
DS1990-0310 1990	Chapman, W.	Financing for mining companies - a balanced approach	Northwest Mining Association Preprint, 50p	United States	Economics, Financial accounting
DS1990-0341 1990	Clowes, R.M.	Lithoprobe: seismic reflection spearheads: multidisciplinary studies of continental evolution	Terra, Abstracts of Deep Seismic reflection profiling of the Continental, Vol. 2, December abstracts p. 163	Canada, United States	Craton, Tectonics
DS1990-0410 1990	DOE.	Resource allocation and mine costing model	National Technical Information Service, PB 82-500388/WNR Code = approx. $ 240.00 United States	United States	Mine costing model, ore reserves, economics, Book -ad
DS1990-0457 1990	Ernst, W.G.	Metamorphism in the allocthonous and autochthonous terranes of western United States.	Phil. Transactions Royal Society. Lond., Vol. 331A, pp. 549-70.	United States, California	Tectonics - lithotectonics
DS1990-0588 1990	Gosnold, W.D.	Heat flow in the Great Plains of the United States	Journal of Geophysical Research, Vol. 95, January 10, pp. 353-374	Midcontinent, United States	Heat Flow, Midcontinent, Great Basin
DM1990-1724 1990	Harries, K.J.	Joint-venture disputes	Northern Miner Magazine, Vol. 5, No. 9, September pp. 20-21	Canada, United States	Legal, Joint ventures
DS1990-0704 1990	Hocker, P.M.	No mine is an island. the mining industry amid risingenvironmentalexpectations	Colorado School of Mines, Department of Mineral Economics, Working Paper No. 90-5, 23p	United States	Economics, Environmental issues
DS1990-0715 1990	Holtkamp, J.A.	Mining waste regulations. 3 brief pages -slide headings	Northwest Mining Association Preprint, 3p	United States	Legal, Mining waste
DS1990-0761 1990	Jennings, C.M.H.	Exploration for Diamondiferous kimberlites and lamproites	Modern Exploration Techniques, editors L.S. Beck, C.T. Harper, Saskatchewan, pp. 139-148	Canada, United States	Overview, Exploration techniques
DS1990-0769 1990	Johnson, D.S.	Mining partners in the 90's: friend or foe?	Northwest Mining Association Preprint, 3p	United States	Legal, Partnership parameters
DS1990-0982 1990	Marcus, J.	Mining environment -financial ratios for mine analysis	Engineering and Mining Journal, Vol. 191, No. 9, September pp. 16CC, 16EE, 16GG, 16II, 16KK	United States	Legal, Economics -mining environment
DS1990-0983 1990	Marcus, J.	Mining environment -financial assurances for mine closure; a discussion Of the issues	Engineering and Mining Journal, Vol. 191, No. 8, August pp. 16E, g, i, k	United States	Legal, Mining environment
DS1990-0984 1990	Marcus, J.	Mining enviornment- regulatory control of mining at the federal level, partone	Engineering and Mining Journal, Vol. 191, No. 6, June p. 16U, W, Y, Z, 16AA, BB.	United States	Mining, Environment
DS1990-1082 1990	Nadeau, S., Pineau, F., Javoy, M., Francis, D.	Carbon concentrations and isotopic ratios in fluid-inclusion bearing upper mantle xenoliths along the northwestern margin of North America	Chemical Geology, Vol. 81, No. 4, February 20, pp. 271-298	United States	Geochemistry, Xenolith inclusions
DS1990-1151 1990	Pakiser, L.C., Mooney, W.D.	Geophysical framework of the continental United States	Geological Society of America (GSA) Memoir, No. 172, 840p. 3 plates approx. $ 92.50	United States	Geophysics, Structure, crust, mantle
DS1990-1152 1990	Pakiser, L.C., Mooney, W.D.	Geophysical framework of the continental United States	Gsa Mwr., No. 172, 840p. 3 plates $ 93.00	United States, Midcontinent	Geophysics
DS1990-1311 1990	Schlauch, P.J.	Opening and closing Mines in the 1990's how hard will it be?Brief overview slide headings	Northwest Mining Association Preprint, 4p	United States	Legal, Mine closures
DS1990-1382 1990	Smith, V.K.	Natural resource damage assessment and the mineral sector: valuation in thecourts	Colorado School of Mines, Department of Mineral Economics, Working Paper 90-9, 37p	United States	Economics, Legal -Natural resource assessment
DS1990-1488 1990	United States Bureau of Mines	Mineral commodity summaries 1990	United States Bureau of Mines, Mineral commodity summaries volume, 200p	United States	Economics, Commodity -brief review
DS1990-1489 1990	United States Bureau of Mines	Diamond -industrial	Mineral Commodity Summaries 1990, pp. 54-55	United States	Economics, Industrial diamond summar
DS1990-1497 1990	Van der Voo, R.	The reliability of paleomagnetic data	Tectonophysics, Vol. 184, pp. 1-9	United States, Canada, Africa	Geophysics, Paleomagnetics -review
DS1991-0040 1991	Aston, R.L.	In the legal vein	Engineering and Mining Journal, Vol. 192, No. 4, April pp. 20R-20S	United States	Legal, Mineral rights
DS1991-0108 1991	Besse, J., Corutillot, V.	Revised and synthetic apparent polar wander paths of the African North American and Indian plates, and true polar wander path since 200Ma	Journal of Geophysical Research, Vol. 96, No. B3, March 10, pp. 4029-4050	South Africa, United States, India	Paleomagnetism, Plate tectonics
DS1991-0177 1991	Brink, S., Saini-Eidukat, B., Earley, D.III, Blake, R.	Application of petrographic techniques to assess in situ leaching miningpotential	United States Bureau of Mines I.C., No. IC 9295, 14p	United States	Mining -in-situ, Petrography
DS1991-0185 1991	Brown, L.D.	A new map of crustal terranes in the United States from COCORP Deep seismic reflection profiling	Geophysical Journal International, Vol. 105, No. 1, April pp. 3-14	United States	Geophysics -seismics, Tectonics -crust
DS1991-0208 1991	Camm, T.W.	Simplified cost models for prefeasibility mineral evaluations #1	United States Bureau of Mines Information Circular, No. IC 9298, 17p	United States	Economics, ore reserves, Cost models -mineral evaluation
DS1991-0373 1991	DePaolo, D.J., Linn, A.M., Schubert, G.	The continental crustal age distribution: methods of determining mantle seperation ages from samarium-neodymium (Sm-Nd) isotopic dat a and application to the southwest UnitedStates	Journal of Geophysical Research, Pt. B., Vol. 96, No. B2, February 10, pp. 2071-2088	United States, Colorado Plateau	Crustal age, Geochronology -samarium-neodymium (Sm-Nd)
DS1991-0410 1991	Dummett, H.T.	Diamond exploration in North America	The Canadian Mining and Metallurgical Bulletin (CIM Bulletin) ., Session on Diamonds at The Canadian Institute of Mining, Metallurgy and Petroleum (CIM) Annual Meeting April, Vol. 84, No. 947, March p. 90. Abstract	Canada, United States	Exploration, Brief overview
DS1991-0415 1991	Durrheim, R.J., Mooney, W.D.	Archean and Proterozoic crustal evolution: evidence from crustalseismology	Geology, Vol. 19, No. 6, June pp. 606-609	Canada, United States	Tectonics, Crust
DS1991-0418 1991	Economic Geology	A special issue on applications of hydrothermal alteration studies to mineral exploration	Economic Geology, Vol. 86, No. 3, May 1991, pp. 461-689	United States, Canada	Mineral deposits, Economic Geology, Hydrothermal alteration
DM1991-2043 1991	Engineering and Mining Journal	The space age comes to earth. How satellite remote sensing helps geologists find minerals	Engineering and Mining Journal, Vol. 192, No. 7, July pp. 26-29	United States, Canada	Remote sensing, Overview -brief
DS1991-0570 1991	Gibbs, B., Krajewski, S.	Public domain software for earth scientists: handbook of public domain and inexpensive software	Gibbs and Associates, 189p. $ 40.00	United States	Computer programs, Lists
DS1991-0645 1991	Haglund, D., Von Bredow, A.	The rise of the new protectionism in North America	Raw Materials Alert, Vol. 8, No. 1, pp. 7-14	Canada, United States, Mexico	Economics, Politics
DS1991-0704 1991	Helmstaedt, H.H.	Geotectonic controls of diamonds and kimberlites and their application To diamond exploration	Proceedings of Fifth International Kimberlite Conference held Araxa June 1991, Servico Geologico do Brasil (CPRM) Special, pp. 173-176	United States, Colorado Plateau, South Africa, Australia	Craton, mantle, Tectonics
DS1991-0839 1991	Keith, L.H.	Environmental sampling and analysis: a practical guide	Lewis Publ, 130p	United States	Legal -Environmental sampling, Not specific to mining
DS1991-0866 1991	King, A.O.	United States-Canada free trade agreement: eliminating barriers to commerce. (Written by United States)	Minerals Today, March pp. 20-22	United States, Canada	Economics, Free trade
DS1991-1040 1991	Mallard, G.E., Aronson, D.E.	United States Geological Survey (USGS) toxic substances hydrology program; abstracts of the technicalmeeting, Monterey California, March 11-15th. 1991	United States Geological Survey (USGS) Open File, No. 91-088, 133p	United States	Toxic substances
DS1991-1065 1991	Martinez, E., Spiller, D.E.	Gravity magnetic seperation	Engineering and Mining Journal, Vol. 192, No. 6, June pp. 16 EE, 16 GG. (2p.)	United States	Mineral processing -general, Gravity magnetics
DS1991-1066 1991	Martinez, J.D.	Salt domes	American Scientist, Vol. 79, September-October pp. 420-430	United States	Salt domes
DS1991-1070 1991	Maslowski, A.	Glacial erratics	Rock and GeM., Vol. 21, No. 3, March pp. 76-79	United States	Geomorphology, Popular account -mentions diamonds
DS1991-1120 1991	Meissner, R., Wever, Th., Sadowiak, P.	Continental collisions and seismic signature	Geophysical Journal International, Vol. 105, No. 1, April pp. 15-24	United States	Geophysics -seismics, Tectonics -crust
DS1991-1141 1991	Meyer, H.O.A., Winston, R.	Famous diamonds at the House of Winston	Xiii International Gemmological Conference Held South Africa, Stellenbosch, 1p. abstract	United States	History, Diamonds notable
DS1991-1160 1991	Mineral Resources Newsletter	New technology -exploration for mineral deposits.brief overview of airborne mineral mapping, diamond anvil cells, remote sensing, boron isotopes, auto-microscopes	United States Geological Survey (USGS) Mineral Resources Newsletter, Fall/winter 1991/1992, 10p	United States	Technological -brief overview, mineral exploration techniques
DM1991-2184 1991	Mining Engineering	Industrial diamonds 1991 - Min Eng	Mining Engineering, Vol. 43, No. 6, June p. 603	United States	Industrial diamonds, Brief overview -consumption
DS1991-1177 1991	Mohnen, V.A., Goldstein, W., Wei-Chyung Wang	The conflict over global warming -the application of scientific research to policy choices	Global Environmental Change, March pp. 109-123	United States	Global warming, Climate
DS1991-1178 1991	Mohnen, V.A., Goldstein, W., Wei-Chyung Wang	The conflict over global warming -the application of scientific research topolicy choices	Global Environmental Change, March pp. 109-123	United States	Global warming, Climate
DS1991-1188 1991	Moores, E.M.	Southwest U.S. -East Antarctic (SWEAT) connection: a hypothesis	Geology, Vol. 19, No. 5, May pp. 425-428	United States, Antarctica	Gondwana, Tectonics
DS1991-1225 1991	Nelson, K.D.	A unified view of craton evolution motivated by recent deep seismic reflection and refraction results	Geophysical Journal International, Vol. 105, No. 1, April pp. 25-36	United States	Geophysics -seismics, Tectonics -crust
DS1991-1332 1991	Percival, J.A., Shaw, D.M., Milkereit, B., White, D.J., Jones, A.G.	A closer look at deep crustal reflections	Eos, Vol. 72, No. 32, August 6, pp. 337, 339, 340, 341	United States, Canada	Tectonics, Geophysics -seismics
DS1991-1336 1991	Peter, G., Klopping, F.J., Carter, W.E., Dewhurst, W.T.	Absolute gravity reference sites in the United States	Geophysics: the Leading Edge of Exploration, July, pp. 43-48	United States	Geophysics, Gravity sites
DS1991-1421 1991	Richardson, R.M., Reding, L.M.	North American plate dynamics #2	Journal of Geophysical Research, Vol. Paper # 91JB00958	United States, Canada	Tectonics, Plates, Paper
DS1991-1437 1991	Robinson, E.S.	Correlation of tidal gravity and heat flow in eastern North America	Physics of the Earth and Planetary Interiors, Vol. 67, No. 3-4, July pp. 231-236	United States, Canada	Geophysics -gravity, Heat flow
DS1991-1584 1991	Silver, L.	Growth, modification and destruction of continental lithosphere as reworked in southwestern North America	Eos, Spring Meeting Program And Abstracts, Vol. 72, No. 17, April 23, p. 297	United States	Crust, Mantle
DM1991-2226 1991	Skillings Mining Review	Notice about E.I. Erlich joining Dunn-Behre Dolbear Inc. mining consultingfirm. He has expertise in diamond evaluation	Skillings Mining Review, Vol. 80, No. 44, Nov. 2, p. 13	United States	News item, Diamond
DM1991-2229 1991	Stephenson, S.	Winston's winning ways	Diamond International, November/December pp. 42-49	United States	Profile, Harry Winston
DS1991-1712 1991	Thelin, G.P., Pike, R.J.	Landforms of the conterminous United States: a digital shaded reliefportrayal.Miscellaneous investigation map series	United States Geological Survey (USGS) Map and text, 1: 3, 500, 000 16p. $ 5.00	United States	Map, Digital relief
DS1991-1716 1991	Thomas, M.D., Grieve, R.A.F., Sharpton, V.L.	Structural fabric of the North American continent, as defined by gravity trends #1	Proceedings of the Seventh International Conference on Basement, pp. 257-276.	United States, Canada	Rifting, Structure, tectonics, lineaments
DS1991-1764 1991	United States Bureau of Mines	The New Materials Society, Materials shifts in the new society	U.s. Department Of Interior, Bureau Of Mines, 200p	United States	Materials use, Table of contents
DS1991-1765 1991	United States Bureau of Mines	Shifting material uses: why they occur	The New Materials Society, Vol. 3, July 1991	United States, Global	Economics, Materials -patterns of use
DS1991-1766 1991	United States Bureau of Mines	Diamond. (Industrial) Brief overview	Mineral Commodity Summaries 1991, pp. 48-49	United States, Global	Industrial diamond, Production, demand
DS1991-1770 1991	United States Geological Survey (USGS)	1991 United States Industrial outlook	United States Geological Survey (USGS), $ 28.00	United States	Book -ad, Industrial minerals
DS1991-1854 1991	White, L., O'Neil, T.	Environmental engineering- an evolving discipline of increasing importance to mining	Mining Engineering, Vol. 43, No. 11, November pp. 1309-1314	United States	Environmental, Legal
DS1992-0022 1992	American Geological Institute	Geoscience theses of the United States and Canada	American Geological Institute Bibliography of Geoscience Theses, $ 425.00 United States	United States, Canada	Bibliography, Book -ad
DS1992-0061 1992	Babcock, R., Wilton, T.	Status of revisions to the Mining Law (USA)	Seg Newsletter, No. 11, October pp. 8, 9	United States	Law, Mining -revisions
DS1992-0063 1992	Baez Presser, J.	Trans continental magmatic belt: diamond bearing lamproite target	Proceedings of the 29th International Geological Congress. Held Japan August 1992, Vol. 1, abstract p. 195	Arkansas, United States, British Columbia	Lamproites
DS1992-0099 1992	Bazard, D.R., Butler, R.F.	North American Polar Wander implications of Latest Triassic and Earliest Jurassic paleomagnetic poles	Eos Transactions, Vol. 73, No. 14, April 7, supplement abstracts p. 94	United States	Paleomagnetics, Polar Wander Path
DS1992-0133 1992	Bliss, J.D.	Developments in mineral deposit modeling	United States Geological Survey (USGS) Bulletin, No. 2004, 168p. $ 9.50	United States	Mineral deposit modeling, abstracts
DS1992-0134 1992	Bliss, J.D., Sutphin, D.M., Mosier, D.L., Allen, M.S.	Grade and tonnage and target area models of Au-Ag-Te veins associated with alkalic rocks	United States Geological Survey (USGS) Open File, No. 92-0208, $ 2.25	United States	Alkaline rocks, Mineralization -not specific to kimberlites
DS1992-0233 1992	Channell, I.E.T.	Jurassic and Cretaceous paleomagnetic dat a from Italy and Mesozoic apparent polar Wander Paths for Africa and North America	Eos Transactions, Vol. 73, No. 14, April 7, supplement abstracts p. 95	Africa, United States	Paleomagnetics, Polar Wander Paths
DS1992-0262 1992	Clark, P.U., Lea, P.D.	The last interglacial transition in North America	Geological Society of America Special Paper, No. 270, 320p	United States, Canada	Geomorphology, glacial, Table of contents
DS1992-0265 1992	Clowes, R.M.	Lithoprobe: an integrated approach to studies of crustal evolution. Briefoverview	Geotimes, Vol. 37, No. 8, August pp. 12-14	Canada, United States	Lithoprobe, Tectonics
DS1992-0357 1992	Denver Mining Association Publication	Successful mine reclamation... what works	Denver Mining Association Publication, 430p. $ 35, 00	United States	Book -Table of contents, Mine reclamation
DM1992-1850 1992	Diamond News and South African Jeweller	Cuttable rough imports to USA in 1991	Diamond News and South African Jeweller, No. 6, June p. 81	United States	News item, Diamond imports
DM1992-1851 1992	Diamond News and South African Jeweller	Downturn for industrials in United States during 1991	Diamond News and South African Jeweller, December p. 23, 24, 25, 27	United States	News item, Production
DM1992-1852 1992	Diamond News and South African Jeweller	Sibeka searches for gems in USA, Chin a and Zaire	Diamond News and South African Jeweller, December p. 29	United States, China, Zaire	News item, Sibeka
DS1992-0374 1992	Donato, D.A.	MULSIM/PC - a personal computer based structural analysis program for mine design in deep tabular deposits	United States Bureau of Mines Information Circular, No. 9325, 56p	United States	Computer, Program -MULSIM/PC.
DS1992-0389 1992	Downey, M.W.	Appropriate people and proper organization for successful exploration.Paper quoted during Woodall's address to SEG Denver Meeting	Arco, 11p	United States	Economics, Exploration philosophy
DS1992-0431 1992	Episodes	Remote sensing in global geoscience processes	Episodes, Vol. 15, No. 1, March pp. 2-85	Canada, United States, Russia	Remote sensing, GIS applications
DS1992-0543 1992	Gems & Gemology	Dat a suggest strong, changing U.S. diamond market	Gems and Gemology, Vol. 27, No. 4, pp. 254	United States	News item, Diamond markets
DS1992-0544 1992	Gems & Gemology	G.E. synthesizers large carbon-13 diamonds	Gems and Gemology, Vol. 27, No. 4, pp. 254	United States	News item, G.E. synthetic diamonds
DS1992-0555 1992	Geochautauqua	Energy and mineral resource assessments- how are they done? who are they done for? how effective are they?note transcript from meeting held Oct.1989...	Nonrenewable Resources, Vol. 1, No. 1, Spring pp. 5-39	United States	Land use policy, Legal -mineral resources
DM1992-1893 1992	Globe & Mail	De Beers, GE face lawsuit -group alleges price fixing on industrialdiamonds	Globe and Mail, Report on Business, May 5th. p. B 19	United States	News item, Kidder Building and Wrecker, GE, De Beers
DS1992-0625 1992	Grover, T.P.	Dat a acquisition system for magnetotellurics	United States Geological Survey (USGS) Open File, No. 92-0569, 29p. $ 4.50	United States	Computer, Program -magnetotellurics
DS1992-0679 1992	Hartnady, C.J.H., Onstott, T.C.	A mesoproterozoic geosuture link between North America and southernAfrica?	Eos Transactions, Vol. 73, No. 14, April 7, supplement abstracts p.365	United States, Canada, Southern Africa	Craton, Supercontinent
DS1992-0680 1992	Hasenfeld, H.	The New York diamond market of the 90's facing the future challenge	Gemological Institute of America, Proceedings Volume ed. A. Keller, p. 52-53. (abstract)	United States	Economics, Diamond market
DS1992-0685 1992	Hauser, E.C.	Layered Proterozoic rocks of the Eastern U.S. midcontinent and their involvement in Grenville Foreland thrusting	Eos Transactions, Vol. 73, No. 14, April 7, supplement abstracts p. 319	Midcontinent, United States	Midcontinent, Tectonics
DS1992-0725 1992	Hoover, D.B., Heran, W.D., Hill, P.L.	The geophysical expression of selected mineral deposit models	United States Geological Survey (USGS) Open File, No. 92-557, 140p	United States	Geophysics, Deposits
DS1992-0865 1992	Kirk, R.V.	Water issues pose serious questions for mining	Amc Journal, May pp. 13-14	United States	Mining, Legal -Environmental, Water - Clean Water Act
DS1992-0875 1992	Klein, B.W., Graham, A.P., Peterson, S.D.	Mining in 1992: a cautious optimism. (United States)	Minerals Today, February pp. 6-11	United States	Mining, Economics
DM1992-2024 1992	Mining Engineering	Annual review issue	Mining Engineering, Vol. 44, No. 5, May pp. 425-475	United States	Mining -overview in states, Mineral processing
DS1992-1152 1992	Orris, G.J., Bliss, J.D.	Industrial minerals deposit models: grade and tonnage	United States Geological Survey (USGS) Open file, 92-0437, 84p. $ 13.25	United States	Models, grade and tonnage, Industrial minerals
DS1992-1178 1992	Peddie, N.W.	The magnetic field in the United States 1990 -declination chart	United States Geological Survey (USGS) Map, GP 1002-D, 1" 55miles $ 3.75	United States	Geophysics, Magnetic declination chart
DS1992-1190 1992	Peterson, T.D.	Early Proterozoic ultrapotassic volcanism of the Keewatin Hinterland, Central Canada #1	Eos Transactions, Vol. 73, No. 14, April 7, supplement abstracts p.335	Northwest Territories, Saskatchewan, United States	Churchill Province, Wyoming Province, Alkaline rocks
DS1992-1194 1992	Pilkington, M., et al.	Gravity anomaly map with shaded relief of gradient of North America	Geological Survey of Canada, Map 1807A 1: 10, 000, 000 $ 4.80	Canada, United States, North America	Map -geophysics, Gravity Anomaly
DS1992-1195 1992	Pilkington, M., et al.	Horizontal gradient of the Bouguer Gravity anomaly map of North America	Geological Survey of Canada, Map 1809A 1: 10, 000, 000 $ 4.80	Canada, United States, North America	Map -geophysics, Gravity -Bouguer
DS1992-1196 1992	Pilkington, M., et al.	Vertical gradient of the Bouger Gravity anomaly map of North America	Geological Survey of Canada, Map 1810A 1: 10, 000, 000 $ 4.80	Canada, United States, North America	Map -geophysics, Gravity -Bouguer vertical gradient
DS1992-1197 1992	Pilkington, M., et al.	Isostatic gravity anomaly map of North America	Geological Survey of Canada, Map 1808A 1: 10, 000, 000 $ 4.80	Canada, United States, North America	Map -geophysics, Gravity -isostatic
DS1992-1198 1992	Pilkington, M., et al.	Vertical gradient of the Bouguer Gravity anomaly map of North America	Geological Survey of Canada, Map 1810A 1: 10, 000, 000 $ 4.80	Canada, United States, North America	Map, Gravity -Bouguer vertical gradient
DS1992-1199 1992	Pilkington, M., et al.	Magnetic field intensity map of North America	Geological Survey of Canada, Map 1811A, 1: 10, 000, 000 $ 4.80	Canada, United States, North America	Map, Magnetic field intensity
DS1992-1284 1992	Robinson, G.M.L.	Implementing cost effective on-site remediation technologies for mineral processing wastes	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Annual Meeting held Phoenix Arizona Feb. 24-27th. 1992, Preprint No. 92-205, 16p	United States	Legal, regulations, Overview -technologies
DS1992-1408 1992	Simpson, D.W., Andersm M.H.	Tectonics and topography of the Western United States - an application Of digital mapping	Gsa Today, Vol. 2, No. 6, June pp. 117, 118, 120-121	United States	Tectonics, Topography, GIS
DS1992-1428 1992	Sloan, H., Patriat, Ph.	Kinematics of the North American-African plate boundary between 28 and 29 N (North) during the last 10 Ma: evolution of the axial geometry and spreading rate and direction.	Earth and Planetary Science Letters, Vol. 113, pp. 323-341.	North America, Africa, United States	Tectonics, between 28 and 29 North
DS1992-1429 1992	Sloss, L.L.	Tectonic episodes of cratons: conflicting North American concepts	Terra Nova, Vol. 4, pp. 320-328	Canada, United States	Craton, Tectonic episodes
DS1992-1434 1992	Smith, R.C.	PREVAL: prefeasibility software program for evaluating mineral version 1.01 users manual using LOTUS 1-2-3 release 2.01 or newer	United States Bureau of Mines, Information Circular No. 9307, 35p	United States	Computer, Program -PREVAL
DS1992-1554 1992	Tilton, J.E.	Mineral endowment, public policy and competitiveness: a survey of issues	Colorado School of Mines, Department of Mineral Economics, Working Paper 92-4, 31p	United States	Economics, Mineral endowment, public policy
DS1992-1584 1992	United States Bureau of Mines	Mineral commodity summaries 1992	Usbm., 200p	United States, Global	Commodities, Brief 1 or 2 page overview
DS1992-1597 1992	Van Zyl, D., Koval, M., Li, Ta M.	Risk assessment -management issues in the environment planning of Mines	Society Mining Engineers and Exploration Inc, 230p. approximately $ 60.00	United States	Mining, Assessment, environment, audits
DS1992-1692 1992	Wood, C.A., Kienle, J.	Volcanoes of North America #2	Cambridge Press, 354p. now paper back $ 25.00	United States, Canada	Book -ad, Volcanoes
DS1992-1700 1992	Wright, T.L., Pierson, T.C.	Living with volcanoes	United States Geological Survey (USGS) Circular, No. 1073, 57p	United States	Volcanoes, Research
DS1992-1753 1992	Zoback, M.L.	Stress field constraints on intraplate seismicity in eastern NorthAmerica	Journal of Geophysical Research, Vol. 97, No. B8, July 30, pp. 11, 761-11, 782	Appalachia, United States, Midcontinent	Geophysics -seismics, Tectonics
DS1993-0043 1993	Arnold, R., Gottlieb, A.	Trashing the economy.. how runaway environmentalism is wrecking America	Merrill Press, 660p. $ 20.00	United States	Book -Table of contents, Environmental
DS1993-0069 1993	Balchm A.H., Karazincir, H.	Diffraction imaging using cross borehole seismics: a physical model study	Society for Mining, Metallurgy and Exploration (SME) Meeting held February 15-18, 1993 in Reno, Nevada, Preprint No. 93-216, 5p	United States	Geophysics, Oil
DS1993-0076 1993	Banks, D.S.	Can the United States maintain its edge in environmentally criticaltechnologies?	Nonrenewable Resources, Vol. 2, No. 3, Fall pp. 172-180	United States	Economics, Environment
DS1993-0086 1993	Barsotti, A.F.	The place of minerals in a home.good for reference for both adults andchildren	Society for Mining, Metallurgy and Exploration (SME) Meeting held February 15-18, 1993 in Reno, Nevada, Preprint No. 93-119, 8p	United States	Overview of minerals in home use
DS1993-0117 1993	Bhatt, S.K.	Cost benefit analysis of computer assisted mining through production and cost modelling: an update of IC 9281 #1	United States Bureau of Mines, No. IC 9367, 12p	United States	Book -table of contents, Mining costs
DS1993-0118 1993	Bhatt, S.K.	Cost benefit analysis of computer assisted mining through production and cost modeling: update IC 9281 #2	United States Bureau of Mines, No. IC 9367, 40p	United States	Mining, Cost benefit Program
DS1993-0146 1993	Bourne, H.L.	What its worth: a review of mineral royalty information... 12th. year hehas produced this for this journal	Mining Engineering, Vol. 45, No. 7, July pp. 710-713	United States	Economics, royalty, Geostatistics
DS1993-0170 1993	Brown, D.S.	Minerals and the environment in the 21st. century #1	Nonrenewable Resources, Vol. 2, No. 3, Fall pp. 181-186	United States	Economics -minerals, Environment
DS1993-0286 1993	Coopersmith, H.	Diamond mine discovery	Prospectors and Developers Diamond Workshop, held March 27th, Toronto, 34p	United States	Exploration overview, Exploration techniques, sequence
DS1993-0346 1993	Dheeriya, P.L.	Financial analysis of the United States mineral and mining industry	Resources Policy, Vol. 19, No. 2, June pp. 106-123	United States	Economics, Metal mining industry
DM1993-1947 1993	Diamond News and South African Jeweller	Pentagon sells diamonds	Diamond News and South African Jeweller, No. 6, June p. 47. (1 column)	United States	News item, United States Government -sales
DS1993-0387 1993	Earth -overview	Sources of information for everyone to use and defend mining	California Mining Journal, September issue, 4p	United States, Canada	Statistics, Mining operations
DM1993-1968 1993	Engineering and Mining Journal	Congress compares domestic and foreign mining royalties	Engineering and Mining Journal, Vol. 194, No. 12, December pp. NA 16H	United States	Legal, Mining royalties
DS1993-0450 1993	Foose, M.P., Bryant, K.	Annotated bibliography of metallogenic maps ( 1960-1987)	United States Geological Survey (USGS) Open File, No. 93-0208 A, B, paper copy $ 14.00 disc $ 10.00	United States	Map -bibliography, Metallogenic maps
DC1993-2594 1993	General Diamond Corp	Record sales posted for industrial diamond business	George Cross Newsletter, No. 168, September 1, p. 3	United States	News item - press release
DS1993-0522 1993	Geological Society of America	Contaminant hydrogeology; practical monitoring, protection, and cleanup	Geological Society of America Continuing education manual, 373p	United States	Book -table of contents, Hydrogeology -environment
DS1993-0563 1993	Gough, L.P.	Understanding our fragile environment: lessons from geochemical studies	United States Geological Survey (USGS) Circular, No. 1105, 34p	United States	Book -ad, Environment -geochemistry
DS1993-0619 1993	Haller, K.M.	Maps of major active faults, western Hemisphere, ILP project II-2, guidelines	United States Geological Survey (USGS) Open File, No. 93-0338, 45p. $ 7.25	United States, Canada	Structure, Faults -maps
DS1993-0631 1993	Harris, D.P., Reiber, M.	Evaluation of the United States Geological Survey (USGS)'s three step assessmentmethodology	United States Geological Survey (USGS) Open File, No. 93-0258 A, B, 675p. $ 101. 75 discs $ 20.00	United States	Economics, Assessment methodology
DS1993-0677 1993	Hjelm. L.E.	Environmental auditing software: quality check for corporate environmentalcompliance	Handout from talk at PDA Meeting, Toronto, 6p	United States	Computer application, environment, Program -Audit Master
DS1993-0712 1993	Indiaqua	Overview of Sibeka's 1992 annual report	Indiaqua, Annual 1993/94, pp. 31-33.	Democratic Republic of Congo, Brazil, China, Angola, United States	Annual Report -precis, Sikeka D'Enterprise
DS1993-0799 1993	Kelmelis, J.A., Snow, M.	Proceedings of the U.S. Geological Survey global change research forum	United States Geological Survey (USGS) Circular, No. 1086, 121p	United States	Book -ad, Global change
DS1993-0848 1993	Kral, S.	Risk assessment/management in the environmental planning of Mines	Mining Engineering, Vol. 45, No. 2, February pp. 151-154	United States	Economics, Environmental, legal
DM1993-2120 1993	London Mining Journal	U.S. minerals trade: a shifting scene	London Mining Journal, Vol. 321, No. 8251, November 19, pp. 350-351	United States	Economics, Mineral production
DM1993-2121 1993	London Mining Journal	DLA Defense Logistics Agency United States (US) diamond sale	London Mining Journal, Vol. 320, No. 8219, April 16, p. 279.	United States	News item, DLA sales
DS1993-0923 1993	Long, K.R.	Economic fundamentals of mining law	United States Geological Survey (USGS) Open File, No. 93-0613, 33p. $ 5.00	United States	Law, Mining laws
DS1993-0951 1993	Mackey, T.S.	No tomorrow? environmental matters affecting new industrial plants in theUSA	Engineering and Mining Journal, Vol. 194, No. 12, December pp. NA 16A, 16B, 16D.	United States	Environmental, Mining
DS1993-1004 1993	McGurk, J.M., et al.	Computer programs released as United States Geological Survey (USGS) publications through June 1993	United States Geological Survey (USGS) Open File, No. 93-0575, 1 disc. $ 10.00	United States	Computer programs
DS1993-1013 1993	McPhie, J., Doyle, M., Allen, R.	Volcanic textures	Codes Key Centre, University Of Of Tasmania, $ 90.00	United States, Japan, New Zealand, Central and South America	Book -ad, Volcanic textures
DM1993-2140 1993	Meyer, H., Waldman, M.	The great North American stake-out	Diamond International, No. 24, July/August pp. 53-54, 57-58.	Northwest Territories, Alberta, Saskatchewan, United States, Arkansas	News item -overview, Overview of exploration company activities
DS1993-1033 1993	Miller, B.M.	Object oriented expert systems and their applications to sedimentary basinanalysis	United States Geological Survey (USGS) Bulletin, No. B 2048, 31p. $ 2.75	United States	Basin, Computer -expert systems
DS1993-1091 1993	Muehlberger, W.R.	Tectonic map of North America, southern sheets USA and Mexico	American Association of Petroleum Geologists, Map series 1: 5 million rolled only $ 16.00	United States, Mexico	Map, Tectonics
DM1993-2319 1993	Northern Miner	Active in exploration... brief overview of activities	Northern Miner, Vol. 78, No. 52, March 1, p. 4.	Northwest Territories, Canada, United States, Venezuela	News item, Companies
DS1993-1146 1993	Nuhfer, E.B., Proctor, R.J., Moser, P.H.	The citizen's guide to geologic hazards	American Institute of Professional Geologists, 134p. $ 20.00	United States	Book review, Geological hazards
DS1993-1235 1993	Phillips, J.D., Duval, J.S., Ambroziak, R.A.	National geophysical dat a and topographic dat a for the conterminous USA	United States Geological Survey (USGS), DDS-0009, 1 disc. $ 32.00	United States	Geophysics, CD-ROM datafile
DS1993-1239 1993	Pike, R.J.	A bibliography of geomorphometry with a topical key to the literature and an introduction to the numerical characterization of topographic forM.	United States Geological Survey (USGS) Open File, No. 93-0262-A, 132p. $ 20.00 plus disc $ 10.00	United States	Geomorphology, Bibliography
DS1993-1245 1993	Plumlee, G.	The environment and the future of economic geology	Seg Newsletter, No. 13, April pp. 6-7	United States	Economics, World, Legal -environment
DS1993-1267 1993	Prospectors and Developers Association Canada	Diamond shortcourse manual	Diamonds: exploration, sampling and evaluation proceedings of a short, 379p. approx. $ 55.00 plus shipping/handling	United States, Canada	Practical techniques, Practical applications, case studies
DS1993-1285 1993	Reed, J.C., Bickford, M.E., Houston, R.S., Link, P.K., Rankin, D.W.	Precambrian: conterminous U.S	Geological Society of America DNAG Volume, No. C-2, 700p. approx. $ 100.00	United States	Book -table of contents, Precambrian
DS1993-1309 1993	Righter, K., Carmichael, I.S.E.	Mega xenocrysts in alkali olivine basalts: fragments of disrupted mantle assemblages.	American Mineralogist, Vol. 78, pp. 120-45.	United States, Mexico	Alkaline rocks
DS1993-1401 1993	Schulze, D.J.	Garnet xenocryst populations in North American kimberlites	Diamonds: exploration, sampling and evaluation proceedings of a short, pp. 359-378.	Ontario, Colorado, Wyoming, United States, Canada	Geochemistry, Garnets
DS1993-1406 1993	Scott, R.W. Jr., Detra, P.S., Berger, B.R.	Advances relating to United States and international mineral resources:developing frameworks and exploration technologies	United States Geological Survey (USGS) Bulletin, Bulletin No. 2039, 277p. 1 map $ 25.00	United States	Book -table of contents, Exploration technologies
DS1993-1407 1993	Scott, R.W., Detra, P.S., Berger, B.R.	Advances related to United States and International mineral resources:developing framework and exploration technologies	United States Geological Survey (USGS) Bulletin, No. 2039	United States	Exploration technology
DS1993-1594 1993	Thompson, J.V.	The feasibility study... overview	Engineering and Mining Journal, Vol. 194, No. 6, September pp. ww 23-27	United States	Economics, World, Feasibility study
DS1993-1630 1993	United States Bureau of Mines	Mineral commodity summaries 1993 - industrial diamond	United States Bureau of Mines Mineral Commodity summaries, pp. 56-57.	United States	Economics, Diamond -industrial diamond
DS1993-1631 1993	United States Bureau of Mines	Metals and Materials for 1991	U.s. Minerals Yearbook, Publishing Fall 1993, 1754p.$ 61.00	United States	Mining, Economics
DS1993-1635 1993	USBM.	Mineral Commodity Summaries	Usbm., 200p	United States	Table of contents, Mineral commodity summaries
DS1993-1679 1993	Vogely, W.A.	An economist looks at resource assessment	Nonrenewable Resources, Vol. 2, No. 2, Summer pp. 67-68	United States	Economics, Ore reserves
DS1993-1689 1993	Walker, J.S.	State of the art techniques for backfilling abandoned mine voids	United States Bureau of Mines Information Circular, No. 9359, 17p	United States	Environmental, Mining -backfill
DS1993-1742 1993	Windley, B.F.	Proterozoic anorogenic magmatism and its orogenic connections	Journal of the Geological Society of London, Vol. 150, pp. 39-50	Baltic States, Canada, Greenland, United States	Tectonics, Granites
DS1993-1836 1993	Zonge Engineering and Research Organization	The application of surface electrical geophysics to ground water problems	Zonge Engineering and Research Organization Inc, 30p	United States	Geophysics, Seminar notes on self potential, induced polarization, CR, VLF, TEM
DS1994-0056 1994	Antony, J.J., Gochnour, L.P.	Closure costs (pay me now and pay me later)	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-57, 2p	United States	Legal -environmental, Gold, silver
DS1994-0107 1994	Barnes, D.G.	Times are tough -brother, can you paradigm?	Risk Analysis, Vol. 14, No. 3, pp. 219-230	United States	Risk management, risk assessment, Environmental issues
DS1994-0116 1994	Basham, G.V.	Environmental audits: a shield, a sword or a trojen horse?	Mining Engineering, Vol. 46, No. 3, March pp. 230-233	United States	Economics, Mining industry
DS1994-0144 1994	Benz, H.M., Vidale, J.E., Mori, J.	Using regional seismic networks to study the earth's deep interior	Eos, Vol. 75, No. 20, May 17, p. 225, 229.	United States	Mantle tomography, Geophysics -seismics
DS1994-0161 1994	Bingham, N.	Mining's image: what does the public really think?	Mining Engineering, Vol. 46, No. 3, March pp. 200-203	United States	Public awareness, Mining
DS1994-0162 1994	Bingham, N.L.	Mining's image... fact or fiction? What does the public really think?	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-166, 5p	United States	Mining, Public awareness
DS1994-0184 1994	Borg, S.G., DePaolo, D.J.	Laurentia, Australia, and Antarctica as a late Proterozoic supercontinent:constraints from isotopic mapping	Geology, Vol. 22, No. 4, April pp. 307-310	United States, Australia, Antarctica	Recronics, geochronology, Supercontinent, Tectonics
DS1994-0191 1994	Bourne, H.L.	What its worth: a review of mineral royalty information	Mining Engineering, Vol. 46, No. 7, July pp. 641-644	United States	Economics, Royalty
DS1994-0215 1994	Brown, D.S.	Minerals and the environment in the 21st. century #2	American Institute of Mining, Metallurgical, and Petroleum Engineers, No. 94-58, 3p	United States	Mining legislation, Environmental
DS1994-0217 1994	Brown, K.W.	New horizons in soil remediation	Geotimes, Vol. 39, No. 9, Sept. pp. 15-17	United States	Environment, Soil remediation -brief overview
DS1994-0277 1994	Cavender, B.W.	Strategic ramifications of corporate environmental policy	Mining Engineering, Vol. 46, No. 3, March pp. 204-207	United States	Public awareness, Environmental
DS1994-0296 1994	Chender, M.	Why nonferrous companies fail at industrial minerals acquisitions	Nonrenewable Resources, Vol. 3, No. 4, Winter pp. 266-270	United States	Economics, Industrial minerals
DS1994-0324 1994	Cohen, L.R., Noll, R.G.	Privatizing public research	Scientific American, September pp. 72-77	United States	Research funding
DM1994-2031 1994	Cordilleran Roundup seminar notes	The Hard choices symposium -jurisdiction synopses	Cordilleran Roundup seminar notes, 100p	Alaska, Yukon, British Columbia, United States, Mexico, Panama	Columbia, Peru, Bolivia, Chile, Argentina, Mine Financing, economics
DS1994-0389 1994	Davis, G.	United States share of world mineral markets: where are we headed?	Mining Engineering, Vol. 46, No. 9, Sept. pp. 1067-1069	United States	Economics, Mineral markets
DS1994-0424 1994	Deynoux, M., et al.	Earth's glacial record and its tectonic setting	Cambridge University of Press, 275p	United States, South Africa, Australia, Brazil, China, Mali	Earth's glacial record, Book - table of contents
DS1994-0425 1994	Deynoux, M., Miller, J.M.G., Domack, E.W., Eyles, N.	Earth's glacial record	Cambridge University of Press Book, 270p.	Brazil, China, United States, West Africa, Mali, South Africa	Geomorphology -glacial record, Sedimentology
DM1994-2062 1994	Diamond International	Pentagon sales net $ 17.3m... selling off all National Stockpile	Diamond International, Sept./Oct. p. 46.	United States	News item, Pentagon sales
DS1994-0486 1994	Eggert, R.G.	The next twenty years	Resources Policy, Vol. 20, No. 1, March pp. 3-4	Global, United States	Economics, Forecast
DS1994-0495 1994	Ernst, W.G., Liou, J.G., Hacker, B.R.	Petrotectonic significance of high and ultrahigh pressure metamorphicbelts: subduction zone histories	International Geology Review, Vol. 30, pp. 213-237	United States, California, China, Dabie, Russia, Korea	Tectonics, metamorphism
DM1994-2163 1994	Globe & Mail	Diamond case in the rough... case against GE thrown out	Globe and Mail, Dec. 12	United States	Legal, GE.
DS1994-0653 1994	Grand, S.P.	Mantle shear structure beneath the Americas and surrounding oceans	Journal of Geophysical Research, Vol. 99, No. B6, June 10, pp. 11, 591-11, 621.	United States	Mantle, Core mantle boundary
DS1994-0656 1994	Gray, F.	Industrial diamonds..A review of 1993 activities	Mining Engineering, Vol. 46, No. 7, July p. 662.	United States	Economics
DS1994-0691 1994	Hager, J.P., Hansen, B.J., et al.	Extraction and processing for the treatment and minimization of wastes1994	Tms, 1, 1153 p	United States	Waste treatment, Book -ad
DS1994-0701 1994	Hall, J., Quinlan, G.	A collisional crustal fabric pattern recognized from seismic reflection profiles of Appalachian/Caledonian	Tectonophysics, Vol. 232, 1-4, pp. 31-42	Appalachia, United States	Geophysics -seismics, Tectonics, Orogeny
DS1994-0739 1994	Hausel, W.D.	Diamonds, kimberlites, lamproites and related rocks in the United States. #1	Wyoming Geological Survey Mineral Report, No. 94-2, 48p.	United States	Overview, Alkaline, kimberlites, lamproites
DS1994-0740 1994	Hausel, W.D.	Diamonds, kimberlites, lamproites and related rocks in the United States. #3	Preprint, 50p.	United States, Colorado, Wyoming, Appalachia	Overview, Review paper kimberlites, diamonds
DS1994-0763 1994	Heran, W.D.	Codicil to the geophysical expression of selected mineral deposit models	United States Geological Survey (USGS) Open File, No. 94-174, 36p. $ 5.75	United States	Geophysics, Deposit -models
DS1994-0778 1994	Hodge, P.	Meteorite craters and impact structures of the earth	Cambridge University of Press Book, 125p.	United States, Canada, Latin America, Australia, Europe, Africa	Meteorites, Impact craters
DS1994-0779 1994	Hodge, P.	Meteorite craters and impact structures of the earth	Cambridge University of Press, 130p	United States, Canada, Latin America, Australia, South Africa	Meteorite craters, Book -table of contents
DS1994-0786 1994	Housman, V.E., Hoffman, S.	A summary and analysis of EPA's mining site visits	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-128, 6p	United States	Mining legislation -environmental, Site visits, EPA.
DS1994-0816 1994	Jackson, S.A.	Diamond exploration in North America: status report January 1994	Preprint of talk given at Dregs Meeting Feb. 1994., 1p text and 2 maps.	United States, Canada	News item
DS1994-0818 1994	Jackson, W.D., Christiansen, G.	International strategic minerals inventory summar report -rare earthoxides	United States Geological Survey (USGS) Circ, No. 930-N, 70p	United States, Global	Economics, Rare earths
DS1994-0856 1994	Juilland, J.	Biodiversity-ecosystem-energy and mineral resources on public lands	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-191, 2p	United States	BLM management, Environmental
DS1994-0906 1994	Kim, Y.C., Zhao, Y.	Optimum open pit production sequencing -the current state of the art	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-224, 8p	United States	Geostatistics, Mining -open pit production
DS1994-0907 1994	King, G., Oppenheimer, D., Amclung, F.	Block versus continuum deformation in the Western United States	Earth Planet. Sci. Letters, Vol. 128, No. 3-4, Dec. pp. 55-64	United States, Cordillera, Nevada	Tectonics
DS1994-0910 1994	King, P.B., Beikman, H.M., et al.	CD ROM digital dat a series... geology of the conterminous United States at1: 2, 250, 000 scale.	United States Geological Survey (USGS) CD-ROM., 1 disc. $ 32.00	United States	Map, CD Rom -digital data
DS1994-0909 1994	King, P.B., et al.	Geology of the conterminous USA	United States Geological Survey (USGS) CD RoM.,	United States	Geology map
DS1994-1036 1994	Lineberry, G.T.	An improved linkage between job competencies and cost measures for the mining industry	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-186, 22p	United States	Mining, Cost accounting, measuring performance operations
DM1994-2335 1994	London Mining Journal	United States court dismisses diamond charge	London Mining Journal, Vol. 323, No. 8305, Dec. 9, p. 418.	United States	News item, General Electric
DM1994-2336 1994	London Mining Journal	Remote sensing: past present and future	London Mining Journal, Vol. 323, No. 8292, September 8, pp. 184-185	United States	Remote sensing, Alteration, structure, lineaments
DS1994-1133 1994	McCallum, M.E, Huntley, P.M., Falk, R.W., Otter, M.L.	Morphological resorption and etch feature trends of diamonds From kimberlite populations Colorado-Wyoming State Line.	Proceedings of Fifth International Kimberlite Conference, Vol. 2, pp. 32-50.	Colorado, Wyoming, United States	Diamond morphology, Deposit -Sloan
DS1994-1167 1994	Memmi, J.M., McCallum, M.E.	Finite element modeling of resistivity dat a from kimberlite intrusions inWyoming, USA	Proceedings of Fifth International Kimberlite Conference, Vol. 2, pp. 382-388.	Wyoming, United States	Geophysics -resistivity
DS1994-1187 1994	Mikesell, R.	Sustainable development and mineral resources	Resources Policy, Vol. 20, No. 2, June pp. 83-87	United States	Economics, Mineral resource development
DM1994-2419 1994	Mining Magazine	The U S general mining law of 1872 - an overview	Mining Magazine, Vol. 171, No. 4, October pp. 217, 218	United States	Mining regulations, Laws
DM1994-2427 1994	Mining World New	Environmental conference program and technical papers	Mining World News, 175p. $ 50.00	United States, Global	Environmental, Book -ad
DS1994-1208 1994	Miskelly, N.	A comparison of international definitions for reporting of Mineral resources and reserves	Australian Institute of Mining and Metallurgy (AusIMM) Bulletin, No. 4, July pp. 47-56	Australia, Canada, United Kingdom, United States, South Africa	Geostatistics, Ore reserves -comparison
DS1994-1209 1994	Miskelly, N.	A comparison of international definitions for reporting mineral resource sand reserves	Minerals Industry International, No. 1019, July pp. 28-36	Australia, United Kingdom, United States, South Africa, Canada	Ore reserves, Geostatistics
DS1994-1225 1994	Moellenberg, D.L.	A comparison of reclamation requirements and costs under State and Federal hard rock mine reclamation laws	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-219, 11p	United States	Legal environmental, Reclamation laws
DS1994-1256 1994	Murray, H.H.	Opportunities and pit falls in industrial minerals acquisitions anddivestitures	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-214, 2p	United States	Industrials, Economics
DS1994-1266 1994	National Technical Information Service	International land reclamation and mine drainage coneference	International Conference Proceedings, 4 volumes	United States	Book -table of contents, Reclamation, mine drainage
DM1994-2609 1994	Northern Miner	The great diamond fraud of 1872 part 1. Brief account of history of diamond fraud in western USA in that era.	Northern Miner, Vol. 79, No. 51, February 21, p. 4.	United States	History
DS1994-1319 1994	Otter, M.L., McCallum, M.E., Gurney, J.J.	A physical characterization of the Sloan (Colorado) diamonds using arevised diamond description scheme.	Proceedings of Fifth International Kimberlite Conference, Vol. 2, pp. 15-31.	Colorado, United States	Petrology, Deposit -Sloan
DS1994-1378 1994	Pincock, Allen and Holt	Feasibility studies -minimum reporting requirements	Pincock, Allen and Holt Information Bulletin, 94-1, 4p	United States	Economics, Reporting studies
DS1994-1469 1994	Roberts, M.C.	Business cycles and forecasts of industrial minerals use	Nonrenewable Resources, Vol. 3, No. 4, Winter pp. 315-324	United States	Economics, Industrial minerals
DS1994-1488 1994	Ross, M., Skinner, C.	Geology and health.. overview and costs attributed	Geotimes, Vol. 39, No. 1, January pp. 10-12	United States	Geologic hazards
DS1994-1599 1994	Silver, D.B.	1992 mineral exploration statistics -USA and Canadian companies	Economic Geology, Vol. 89, No. 4, June-July pp. 960-967	United States, Canada	Economics, Exploration expenditures, costs
DS1994-1640 1994	Smith, M.L., Camm, T.W.	An expert system for mine design and cost engineering: new directions For the Bureau of Mines cost estimating system	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-132, 7p	United States	Economics, Cost estimating system
DS1994-1650 1994	Snyder, M.T.	Exploration, exploitation, the processes between and beyond... overview of Mining industry's goal	Engineering and Mining Journal, Vol. 195, No. 1, January pp.WW 30-32	United States, Canada	Economics, Exploration activities
DS1994-1681 1994	Stagg, A.K., Hammond, D.R.	Environmental site assessments in the acquisition of industrial mineralassets	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-75, 8p	United States	Mining -environmental, Industrials
DS1994-1711 1994	Struhsacker, D.W.	Playing to win: collecting environmental dat a during exploration and focusing on political communications	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, Meeting held Albuquerque Feb. 14-17th, No. 94-171, 10p	United States	Environmental, Legal involvements
DS1994-1768 1994	Thompson, P.J.	Mining and insurance... property damage	Engineering and Mining Journal, Vol. 195, No. 4, April pp. 32ww-33ww	United States	Mining laws, Insurance
DS1994-1770 1994	Thompson, R.N., Gibson, S.A.	Interplay between lithospheric and convecting mantle sources during continental rift related magmatism.	International Symposium Upper Mantle, Aug. 14-19, 1994, pp. 115-117.	United States, Colorado, New Mexico, East Africa, Russia, Baikal	Mantle, Tectonics, magma
DS1994-1779 1994	Tilton, J.E.	Environmental revolution: stage two	Mining Engineering, Vol. 46, No. 7, July pp. 660-661	United States	Legal, Environmental laws
DS1995-0004 1995	Aber, J.S., Bluemle, J.P., Brighton-Grette, J., et al.	Glaciotectonic map of North America	Geological Society of America (GSA) Map, No. MCHO79, 1: 6, 500, 000 $ 21.00	Canada, United States	Map, Glaciology, glacial, structures
DS1995-0042 1995	Anderson, K.	Toward the management of mining environmental conflicts	Seg Newsletter, No. 21, April pp. 8, 9	United States	Mining, Environment
DS1995-0080 1995	Austin, G.	Industrial diamonds 1995 (USBM)	United States Bureau of Mines Annual Review, 5p. June Publishing	United States	Diamonds -industrial, Brief overview consumption, prices, outlook
DS1995-0081 1995	Austin, G.F., Copeland, S.	Directory of principal U.S. gemstone producers in 1995	Usbm Mineral Industry Surveys, 52p.	United States	Gemstones, Directory
DS1995-0082 1995	Austin, G.T.	Gemstones; USBM Mineral industry Surveys, 1994	Usbm Mineral Industry Surveys, Annual Review 1994, 15p.	United States	Gemstones, Diamond mentioned
DS1995-0083 1995	Austin, G.T.	An overview of gemstone production in the United States	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, No. 95-64, 12p	United States	Gemstones, State -information
DS1995-0148 1995	Bhappu, R.R., Guzman, J.	Mineral investment decision making... a study of mining company practices	Engineering and Mining Journal, Vol. 196, No. 7, July, pp. 36ww-38	United States	Economics, Mining company - risk
DS1995-0149 1995	Bigler, L.M.	Mine closure, financial disclosure	Engineering and Mining Journal, Vol. 196, No. 11, Nov. pp. 16c, d, f	United States	Economics, Mining regulations -closure, severance
DS1995-0187 1995	Bourne, L.	What its worth: review of mineral royalty information	Mining Engineering, Vol. 47, No. 7, July pp. 654-657	United States	Economics, Royalty
DS1995-0235 1995	Burgess, P.M., Gurnis, M., Moresi, L.N.	Geodynamical contributions to the formation of North American cratonic stratigraphic sequences.	Eos, Vol. 76, No. 46, Nov. 7. p.F535. Abstract.	United States, Canada, North America	Craton, Geodynamics
DS1995-0245 1995	Bush, D.V.	Energy conservation in the mining industry	American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, No. 95-44, 4p	United States	Energy -electrical, Mining
DS1995-0277 1995	Carson, C.S.	Integrated economic and environmental satellite accounts.satellite meaning mineral resources	Nonrenewable Resources, Vol. 4, No. 1, Spring pp. 12-33	United States	Economics, Mineral resources -operational accounting
DS1995-0278 1995	Carson, C.S.	Accounting for mineral resources: issues and BEA's initial estimates. Bureau of Economic Analysis	Nonrenewable Resources, Vol. 4, No. 1, Spring pp. 34-59	United States	Economics, Mineral resources -operational accounting
DS1995-0280 1995	Cartwright, M.R.	Four basic types of mineral production royalties	International California Mining Journal, April pp. 43-50 (3p)	United States	Economics -brief overview, Mineral royalties
DS1995-0368 1995	Cremeens, D.L., Brown, R.B., Huddleston, J.H.	Whole regolith pedology	Soil Society of America, $ 24.00	United States	Book -ad, Regolith pedology
DS1995-0371 1995	Crowder, A.A., Ripley, E.A., Redmann, R.E.	Environmental effects of mining #3	St. Lucie Press, 300p. $ 60.00	United States	Environment- legal, mining, Table of contents
DM1995-2179 1995	Diamantaire	Russia and America act against Golden ADA... diamond factory set up in SanFrancisco.. imports not paid for.	Diamantaire, No. 38, Dec. pp. 9-10.	Russia, United States	News item, Golden ADA.
DS1995-0423 1995	Dobra, J.L., Bigler, L.M.	Cost of acquisition and finding vs U.S. mineral Land's value	Engineering and Mining Journal, Vol. 196, No. 6, p. 16NN-16OO. 2p	United States	Taxation, Costs of exploration
DS1995-0438 1995	Dowie, M.	Losing ground: American environmentalism at the close of the TwentiethCentury	Mit Press, 317p. approx. $ 25.00 United States	United States	Book -ad, EnvironmentalisM.
DS1995-0448 1995	Drummond, I., Mursden, T.K.	Regulating sustainable development	Global Environmental Change, Vol. 5, No. 1, March pp. 51-64	United States	Economics, Environment
DS1995-0449 1995	DuBray, E.A.	Preliminary compilation of descriptive geoenvironmental mineral depositmodels	United States Geological Survey (USGS) Open file, No. 95-831, 270p. $ 50.00	United States	Environment, Models -mineral deposits
DS1995-0500 1995	EOS	Task group plans upgrade of the U.S. magnetic-anomaly database	Eos, Vol. 76, No. 14, April 4, p. 137-140	United States	Geophysics -magnetics, Anomaly map
DS1995-0562 1995	Freas, R.C.	Environmental regulatory controls -what was, what is and what is to come	Mining Engineering, Vol. 47, No. 3, March pp. 243-246	United States	Legal, Environmental
DS1995-0664 1995	Goudie, A.S., Wells, G.L.	The nature, distribution and formation of pans in arid zones	Earth Science Reviews, Vol. 38, pp. 1-69.	Zimbabwe, South Africa, Namibia, United States, Argentina	Pan distribution -review, Weathering processes
DS1995-0665 1995	Goudie, A.S., Wells, G.L.	The nature, distribution and formation of pans in arid zones	Earth Science Reviews, Vol. 38, pp. 1-69	Zimbabwe, South Africa, Namibia, United States, Argentina, Global	Pans - depressions, classification, Overview - fluvial processes, weathering, deflation
DS1995-0672 1995	Gray, F.	Industrial diamonds: a review of 1994 activities	Mining Engineering, Vol. 47, No. 7, July 1/2 pg. p. 661.	United States	Diamonds -industrial, Economics
DS1995-0707 1995	Gusek, J.J.	Passive treatment of acid rock drainage: what is the potential bottomline?	Mining Engineering, Vol. 47, No. 3, March pp. 250-253	United States	Acid rock drainage, Environmental
DS1995-0735 1995	Hammond, A., et al.	Environmental indicators: a systematic approach to measuring and reporting on environmental policy perforM.	World resources Institute, 43p	United States	Book - ad, Environmental indicators
DS1995-0740 1995	Haner, B., O'Donnell, J.	Changing gateways: the impact of technology on Geoscience informationexchange	Proceedings 29th. GIS Volume, No. 25, 120p	United States	Book -information technology, Table of contents
DS1995-0756 1995	Harris, D.	Mineral resource assessment -perspectives on the past and present and speculation on future directions	NonRenewable Resources, Vol. 4, No. 3, Fall, pp. 213-232	United States	Economics, Mineral resource -methodology discussion
DS1995-0771 1995	Hausel, W.D.	Diamonds and their host rocks in the United States. *note listed as apreprint from author last year.	Mining Engineering, Vol. 47, No. 8, August pp. 723-732.	United States, Colorado	Diamond -list of stones, occurrences, Overview of areas - exploration
DS1995-0772 1995	Hausel, W.D.	Diamonds, kimberlites, lamproites and related rocks in the United States. #2	Exploration and Mining Geology, Vol. 4, No. 3, July pp. 243-270.	United States, Wyoming, Colorado, California	Kimberlites, Lamproites
DS1995-0809 1995	Hodges, C.A.	Mineral resources, environment issues and land use	Science, Vol. 268, June 2, pp. 1305-1312	United States	Legal, Land use
DS1995-1061 1995	Lassiter, J.C., De Paolo, D.J., Mahoney, J.J.	Geochemistry of Wrangellia flood basalt province: implications for the roleof continental lithosphere.	Journal of Petrology, Vol. 96, No. 4, pp. 983-1009	United States, Wrangellia Terrane	Basalt, Flood basalt genesis
DS1995-1104 1995	Logvinova, A.M., Sobolev, N.V.	Morphology and composition of mineral inclusions in chromite macrocrysts from kimberlites and lamproites.	Proceedings of the Sixth International Kimberlite Conference Abstracts, pp. 331-332.	Russia, Yakutia, South Africa, Australia, United States	Morphology -Mineral inclusions, Kimberlites, lamproites
DS1995-1105 1995	Long, K.R.	Economics of mining law	Nonrenewable Resources, Vol. 4, No. 1, Spring pp. 74-83	United States	Economics, Mineral policy, environment
DS1995-1235 1995	Menzie. W.D.	Public attitudes and policies toward mineral resources on the brink of the21st century	Nonrenewable Resources, Vol. 4, No. 1, Spring pp. 1-11	United States	Economics, Mineral resources -public awareness
DS1995-1285 1995	Mogk, D.W., McCourt, S.	Archean high grade gneiss belts Central Zone Limpopo Belt and northern Wyoming Province -chips off same block?	Centennial Geocongress (1995) Extended abstracts, Vol. 1, p. 193-196. abstract	South Africa, Wyoming, United States	Tectonics
DS1995-1306 1995	Morrey, D.R.	Using metal tolerant plants to reclaim mining wastes	Mining Engineering, Vol. 47, No. 3, March pp. 247-249	United States	Mineral wastes, Environmental
DS1995-1380 1995	Ojakangas, R.W., Dickas, A.B., Green, J.C.	Basement tectonics - No. 10 proceedings -prev. held 1992	Kluwer Academic Publ, 450p	United States, Midcontinent	Structures, lineaments, tectonics, shear zones, Table of contents
DM1995-2839 1995	Paydirt -items from Diamond Conference, held Perth	Ashton gears up for promising season..	Paydirt, Vol. 1, No. 4, March, p. 35.	Australia, Indonesia, United States, Canada	News item, Ashton Mining
DS1995-1578 1995	Ripley, E.A., et al.	Environmental effects of mining #1	St. Lucie Press,	Canada, United States	Book -ad, Environment
DS1995-1666 1995	Scheiner, B.J.	New remediation technology in the changing environmental arena	Society for Mining, Metallurgy and Exploration (SME)/American Institute of Mining, Metallurgical, and Petroleum Engineers, 234p. approx. $ 53.00 United States	United States	Book -ad, Remediation technology
DS1995-1770 1995	Skinner, B.J.	Mineral Myopia	Reprint from GSA Symposium held 1994, 18p	United States	Economics, Mineral industry
DM1995-2904 1995	The Australian	Ashton to step up exploration... world wide	The Australian, March 27, p. 34.	Australia, Canada, United States, Scandinavia, Karelia, Indonesia	News item, Ashton Mining
DM1995-2927 1995	Toronto Star	Hope diamond gets new home	Toronto Star, Jan. 5th.	United States	Diamonds notable -Hope
DS1995-1942 1995	United States Bureau of Mines	CD-ROMS on minerals and materials	United States Bureau of Mines, Ad	United States	Information -advertisement, Mineral commodities, economics
DS1995-2006 1995	Vogel, S.	Has global warming begun?	Earth, December pp. 25-34	United States	Climate, Global warming
DS1996-0001 1996	Abbott, D.G., Camp, D.C.	The use of new microtunneling technology to escavate hard rock in a miningapplication	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, 96-19	United States	Mining, Underground
DS1996-0005 1996	Adisoma, G.S., Hester, M.G.	Grade estimation and its precision in mineral resources: the jacknifeapproach	Mining Engineering, Vol. 48, No. 2, Feb. pp. 84-88	United States	Ore reserves, geostatistics, Kriging, Jacknife approach
DS1996-0021 1996	American Geological Institute	Union list of geologic field trip guidebooks of North America	American Geological Institute,	Canada, United States	Book -ad, Guidebook listing
DS1996-0025 1996	Anderson, D.A., Gibbs, B.L.	Mining the internet.	Mining Engineering, Vol. 48, No. 2, Feb. pp. 48-52	United States	Mining, Computers -internet
DM1996-1658 1996	Antwerp Confidential	Diamonds are still an American's best friend	Antwerp Confidential, No. 3, June, p. 2.	United States	News item, Diamond markets
DS1996-0044 1996	Arnold, T.D.	Underground mining: a challenge to establish open pit operations	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, 96-37	United States	Mining, Underground
DS1996-0081 1996	Barker, J.M.	The imporance of transport in industrial mineral production - an update	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, 96-188	United States	Mining -transportation, Industrial minerals
DS1996-0334 1996	Davis, B.M.	Graphical methods for comparing different sampling campaigns	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, 96-90	United States	Geostatistics, Reserves -sampling
DS1996-0337 1996	Davis, G.A.	The effect of NAFTA on the economics of mineral production	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, 96-44	United States, Mexico, Canada	Economics
DM1996-1781 1996	Diamond International	Marketing to the masses...De Beers objective now is to get United States market to trade upwards.	Diamond International, Nov-Dec. p. 3.	United States	News item, De Beers
DM1996-1782 1996	Diamond International	A fit of pique... market forces will ultimately determine who is right in disclosure debate...	Diamond International, Sept. Oct p. 3.	United States	News item, Diamonds -laser drilling
DS1996-0399 1996	Dyke, A.S.	Preliminary paleogeographic maps of glaciated North America	Geological Survey of Canada, Open file 3296, 6 colour sheets $ 117.00	Canada, United States	Addendum - time slice maps 18, 000 to 1000 BP, Geomorphology maps
DS1996-0400 1996	Dyke, A.S.	Preliminary paleogeographic maps of glaciated North America	Geological Survey of Canada, Open file, No. 3296, 6 maps $ 120.00	Canada, United States, North America	Map, Glaciation - paleogeographic
DS1996-0404 1996	Eaton, G.P.	Industrial Diamond... Annual Review for 1995	U.s. Department Of Interior, 6p. Publishing June 1996	United States	Industrial diamonds, Production, consumption
DM1996-1842 1996	Engineering and Mining Journal	Computers - round up of reports on mine mapping, modelling systems.	Engineering and Mining Journal, Vol. 197, No. 2, July pp. 34-39	United States, Australia	Computer technology, Review of programs -mining
DS1996-0425 1996	Environmental Law Institute	Environmental law deskbook	Environmental Law Institute Publications, approx. 100.00 United States	United States	Book - ad, Environment - legal
DM1996-1934 1996	Globe & Mail	Lawsuit for conspiring to inflate price of industrial diamonds -General Electric and de Beers Group.	Globe and Mail, July 8.	United States	News item, De Beers, GE.
DS1996-0604 1996	Harris, D., Rieber, M.	Commentary and critique of accounting for mineral resources: issues andBEA's initial estimates	Nonrenewable Resources, Vol. 5, No. 1, pp. 7- 21	United States	Geostatistics, reserves, depletion, Economics - accounting, green accounting, Government
DS1996-0629 1996	Hildenbrand, T.G., Blakely, R.J., Hinze, W.J., et al.	Aeromagnetic survey over the U.S. to advance geomagnetic research	Eos, Vol. 77, No. 28, July 9, pp. 265, 268	United States	Geophysics -aeromagnetics, Brief overview
DS1996-0667 1996	Intertec Publishing	Mining environmental handbook... description of contents from EMJ issue	Engineering and Mining Journal,	United States	Book - ad, Environment - mining handbook
DS1996-0885 1996	Marcus, J.J.	A long needed tome, , ,the mining environmental handbook.Briefdescription	Engineering and Mining Journal, Vol. 197, No. 10, Oct. pp. 37, 39, 40, 42	United States	Environment, Mining industry book
DS1996-0914 1996	McClelland, G.E., Scheiner, B.J., Muhtadi, O., Keane, J.	Practical aspects of international management and processing	Society of Mining Engineers, 118p. see prices	United States	Book -ad, Mining -practical processing
DS1996-0928 1996	McEnroe, S.A.	North America during the lower Cretaceous - new paleomagnetic constraints from intrusions New England.	Geophysical Journal, Vol. 126, No. 2, Aug., pp. 477-494.	Canada, United States	Geophysics -paleomagnetics, Polar wandering
DM1996-2159 1996	Mining Engineering	Industrial diamond... brief overview	Mining Engineering, Vol. 48, No. 6, June pp. 25-26.	United States	News item, Diamond -industrial demand
DS1996-1010 1996	Munter, F.	Clean water Act compliance issues related to mining	Society for Mining, Metallurgy and Exploration (SME)-American Institute of Mining, Metallurgical, and Petroleum Engineers (AIME) Preprint, 96-204	United States	Mining, Legal - environment
DS1996-1025 1996	National Technical Information Service	Environment - user's guide clarifies superfund site evaluation method-hazard ranking system (EPA report)	National Technical Information Service,	United States	Environment, Book - ad
DS1996-1149 1996	Quartermain, C.	Geology and the government -how it's working at the minerals managementservice	Geotimes, Vol. 41, No. 3, March pp. 21-23	United States	Economics, Legal -minerals management
DS1996-1172 1996	Reid, M.R., Graham, D.W.	Resolving lithospheric and sub lithospheric contributions to helium isotopevariations...	Earth and Planetary Science Letters, Vol. 144-1, 2, Oct pp. 213-222.	United States	Geochronology, Lithosphere
DS1996-1306 1996	Silver, C.S., Rothman, D.S.	Toxics and health - the potential long term effects of industrialactivity	World Resources Institute, 60p. approx. $ 15.00	United States	Book - ad, Environment - health
DS1996-1307 1996	Silver, D.	Society for Mining, Metallurgy and Exploration (SME) stock exchange - it could happen... comments on letter from previous column on concerns as to status .	Mining Engineering, Vol. 48, No. 7, July p. 10, 17	United States	Economics, Exploration activities and needs
DS1996-1309 1996	Silver, D.B.	Isn't industry's purpose to create value?	Mining Engineering, Vol. 48, No. 1, Jan. pp. 12-13	United States	Economics
DS1996-1382 1996	Strand, M.N.	Wetlands deskbook	Environmental Law Institute, 6330. $ 85.00	United States	Legal, legislation, wetlands, Book -ad
DS1996-1431 1996	Thorpe, J.	Aerial photography and satellite imagery: competing or complementary?	Earth Observation Magazine, June pp. 35-39	United States	Remote sensing
DS1996-1477 1996	Veizer, J., Ernst, R.E.	Temporal pattern of sedimentation Phanerozoic of North America	Geochemistry International, Vol. 33, No. 5, pp. 64-76.	North America, Canada, United States	Geochemistry, sediment recycling
DS1996-1478 1996	Veizer, J., Ernst, R.E.	Temporal pattern of sedimentation: Phanerozoic of North America	Geochemistry International, Vol. 33, No. 5, pp. 64-76	United States, Canada	Sedimentology, Geochemistry
DS1996-1496 1996	Walker, J.D., et al.	Development of Geographic Information Systems -oriented databases for integrated geological and geophys. applic	Gsa Today, Vol. 6, No. 3, March pp. 1-7	United States	Computer, Databases -GIS
DS1996-1537 1996	Wiese, R.G., Edgar, A.D., Barnett, R.L.	Textural and compositional variations in phlogopite and biotite In kimberlite from Fayette County, Kimb. magma	Neues Jahrb. fur Mineralogie, Abhandl., Vol. 170, No. 2, pp. 111-126.	United States, Pennsylvania	Kimberlite magma, Petrology
DS1997-0005 1997	Abbott, R.M.	Strategic mining environmental management	North American Mining, June pp. 16-17	United States	Mining - environment, Legal
DS1997-0129 1997	Brimhall, G.H., Gustafson, L.B.	Maintaining compatibility of mining and the environment	Society of Economic Geologist, Publishing 70p. $ 10.00	United States	Book - table of contents, Mining, exploration, industry, economics, discoveries
DS1997-0132 1997	Brooks, R.E.	Soliciting United States capital risks U.S. Class actions	Insight Press,	United States	Economics, discoveries, Legal - class actions
DS1997-0145 1997	Burgess, P.M., Gurnis, M., Moresi, L.N.	Formation of sequences in the cratonic interior of North America by interaction between mantle, eustatic..	Geological Society of America (GSA) Bulletin., Vol. 109, No. 12, Dec. pp. 1515-1535.	North America, United States, Canada, Alberta, Montana	Craton, Stratigraphy, geochronology
DS1997-0248 1997	Davis, G.A.	One project, two discount rates	Society for Mining, Metallurgy and Exploration (SME) Preprint, No. 97-39, 4p	United States	Economics, discoveries, Geostatistics, ore reserves
DS1997-0267 1997	Dempsey, S.	Legal update on the 1872 mining law	Society for Mining, Metallurgy and Exploration (SME) Preprint, No. 97-63, 4p	United States	Legal, Mining law and public opinion
DS1997-0268 1997	Dempsey, S.	Mining law update	Mining Engineering, Vol. 49, No. 2, Feb. pp. 42-44	United States	Mining, Legal -law
DM1997-1416 1997	Diamond International	Colour is tops... strong performance and preference	Diamond International, May June p. 35, 36.	United States	News item, Diamond colour
DS1997-0306 1997	Eaton, G.P.	Gemstones; USBM Annual Review, 1997	Usbm Annual Review, 12p.	United States	Economics - mentions diamonds, Production, Consumption
DS1997-0326 1997	Ettensohn, F.R.	Assembly and disposal of Pangea: large scale tectonics effects on coevalde position of North American ..	Journal of Geodynamics, Vol. 23, No. 3-4, pp. 287-	United States, Canada	Pangea, Tectonics
DS1997-0327 1997	Evans, J.R.	Highlights for patenting industrial mineral deposits	Society for Mining, Metallurgy and Exploration (SME) Preprint, No. 97-1, 10p	United States	Legal, Economics, Placers
DS1997-0422 1997	Global Tectonics and Metallogeny	The relationships between metal concentration and deep structures of thelithosphere	Global Tectonics and Metallogeny, Vol. 6, No. 2, March pp. 75-160	Australia, China, United States, Russia, Siberia, Venezuela Mantle	Craton, tectonics, MOHO, Gold
DS1997-0444 1997	Griffin, W.L., Fisher, N.J., Friedman, J.H., Ryan, C.G.	Statistical techniques for the classification of chromites in diamond exploration samples.	Journal of Geochemical Exploration, Vol. 59, No. 3, Sept. pp. 233-250.	Australia, South Africa, Swaziland, China, Russia, United States	Geostatistics, classification, chromite, Diamond exploration, technology
DM1997-1532 1997	Insight Press	Mining Finance 1997... evaluating financing strategies in the wake of	Insight Press, $ 224.00	Canada, United States, Indonesia, Global	Economics, Table of contents
DS1997-0571 1997	Karlstrom, K.E, Dallmeyer, R.D., Grambling, J.A.	Ar-Ar evidence for 1.4 Ga regional metamorphism in New Mexico: Implications for thermal evolution of lithosph.	Journal of Geology, Vol. 105, No. 2, March pp.205-223.	United States, New Mexico	Thermal evolution, Argon, Lithosphere
DS1997-0624 1997	Kosich, D.Y.	Mining comes of age in global warming debate	North American Mining, Sept. p. 9-11	United States, Global	Environmental, Global warming - mining
DS1997-0650 1997	Larkin, S.P., Levander, A. , Henstock, T.J.	Is the MOHO flat? Seismic evidence for a rough crust-mantle interface beneath the north Basin -Range	Geology, Vol. 25, No. 5, May pp. 451-454	United States, Basin and Range	Geophysics - seismics, Crust - mantle
DS1997-0660 1997	Learmont, R.D.	Mining must show that it is sustainable	Mining Engineering, Vol. 49, No. 1, Jan. pp. 11-13	United States	Mining, Legal - tax
DS1997-0685 1997	Lithgow-Bertelloni, C., Gurnis, M.	Cenozoic subsidence and uplift of continents from time-varying dynamictopography.	Geology, Vol. 25, No. 8, August pp. 735-738.	United States, Canada, India, Australia, Indonesia	Tomography, Subduction
DS1997-0699 1997	Lowrie, R.L.	Of U.S. minerals and morals... vital role of minerals and raw materials play in our lives	Engineering and Mining Journal, Vol. 198, No. 10, Oct., pp. 16-F-L. (6p.)	United States	Economics, discoveries
DS1997-0744 1997	Maxey, M.N.	Mining ethical issues: the new prohibitionists	Engineering and Mining Journal, Vol. 198, No. 10, Oct., pp. 34-40	United States	Economics, discoveries, Legal, environment
DM1997-1787 1997	New York Diamonds	Retailers say value is in... consumers care more about quality and less about discounts.	New York Diamonds, March/April Vol. 39, p. 52-53.	United States	News item, Diamond prices
DM1997-1788 1997	New York Diamonds	Will there be enough to go around?Asians want better quality diamonds as do Americans.	New York Diamonds, May-June p. 40-48.	United States, Asia, Japan	News item, Markets
DS1997-0951 1997	Rempe. N.T.	Waste disposal in underground Mines - a technology partnership to protectthe environment	Mining Engineering, Vol. 49, No. 3, March pp. 49-52	United States, New Mexico	Mining, Waste disposal, environment
DS1997-0959 1997	Robichaud, R.J.	Tapping into U.S. financial markets	Insight Press,	Canada, United States	Economics, Financing
DS1997-0965 1997	Rodgers, J.	Exotic nappes in external parts of orogenic belts	American Journal of Science, Vol. 297, No. 2, Feb. 1, pp. 174-219	United States, Appalachia	Tectonics, Orogeny
DM1997-2134 1997	Shor, R.	The make of the thing... consumers look for life in their diamonds....cutting.	New York Diamonds, May-June p. 30, 32, 34.	United States	News item, Sales, cutting
DS1997-1053 1997	Sinkankas, J.	Gemstones of North America - diamond section	Geoscience Press, Gemstones of North America, Vol. 3, pp. 109-133.	United States, Canada	Brief overview, Diamond - found and activity
DS1997-1133 1997	Swanson, S.	Risk assessment - ecological techniques for unique results. Consultant for Golder Associates	Engineering and Mining Journal, Vol. 198, No. 4, Apri. pp. 30, 32, 34	Canada, United States	Legal - environmental
DS1997-1166 1997	Torries, T.F.	NPV or IRR? Why not both?Internal rate of return/ net present valuecomparison	Society for Mining, Metallurgy and Exploration (SME) Preprint, No. 97-34, 6p	United States	Economics, Geostatistics, ore reserves
DS1997-1181 1997	United States Geological Survey (USGS)	4th. International Symposium on environmental geochemistry	Unknown,	United States	Conference Oct 1997, Geochemistry - environmental
DS1997-1192 1997	Van der Lee, S., Nolet, G.	Upper mantle S velocity structure of North America	Journal of Geophysical Research, Vol. 102, No. 10, Oct. 10, pp. 22, 815-838.	North America, United States, Canada	Mantle, Tectonics - geophysics - seismics
DS1997-1193 1997	Van der Pluijm, B.A., Braddocks, J.P., Harris, J.H.	Paleostress in cratonic North America: implications for deformation of continental interiors.	Science, Vol. 277, No. 5327, Aug. 8, pp. 794-5.	United States, Canada	Craton, Deformation, tectonics
DS1997-1246 1997	White, L.	Bankable feasibility studies: five bankers point the way	Engineering and Mining Journal, Vol. 198, No. 11, Nov. pp. 16 - 6p	United States	Economics, Geostatistics, ore reserves, discoveries
DS1998-0199 1998	Cairns, R.D.	The microeconomics of mineral extraction under capacity constraints	Nonrenewable Resources, Vol. 7, No. 3, Sept. pp. 233-44	United States	Mineral economics, Risk analysis
DM1998-1756 1998	Diamond International	Being there... the United States justice Department might be about to put away for good its antitrust files on de Beers.	Diamond International, May/June p. 3.	United States	Legal, De Beers
DM1998-1757 1998	Diamond International	Diamonds on the net.. in a business dominated by personal contact and thehandshake... effect on dealing	Diamond International, July/Aug. p. 35-37.	United States	Rapaport, Diamond and Gem, Polygon, Gemkey, Fancoldi, Diamond market
DS1998-0404 1998	Evans, J.R.	The concept of validity on mining claims	Nonrenewable Resources, Vol. 7, No. 3, Sept. pp. 163-186	United States	Legal
DM1998-1817 1998	Financial Post	Diamonds for AMEX.... portfolio of 30 stocks... Diamonds Trust	Financial Post, Jan. 17, 1p.	United States	News item, Stock exchange - AMEX
DS1998-0632 1998	Holdsworth, R.E., et al.	Continental transpressional tectonics and transtensional tectonics	Geological Society of London Spec. Pub, No. 135, 360p. $ 132.00	United States, Dead Sea, China, Europe	Book - ad, Tectonics
DM1998-1884 1998	Insight Press	Mergers and acquisitions: strategies for creating value and growth	Insight Press, 546p. approx. $ 200.00	Canada, United States	Book - table of contents, Legal, economics
DS1998-0869 1998	Li, A., Fischer, K.M., Clarke, T.J.	Mantle discontinuities and temperature under the North American continentalkeel.	Nature, Vol. 395, No. 6698, Sept. 10, pp. 160-63.	North America, Canada, United States	Mantle, Geothermometry
DM1998-1942 1998	London Mining Journal	Annual review supplement on North America. Canada, USA and Mexico	London Min. Journal, Vol. 330, No. 8480, May 15, 12p	Canada, United States, Mexico	Economics, discoveries, mining industry, Overview
DM1998-1943 1998	London Mining Journal	North American summary... leading projects	London Min. Journal, Vol. 330, No. 8480, May 15, p. 379	Canada, United States, Mexico	Economics, discoveries, mining industry, Overview
DM1998-2081 1998	London Mining Journal	Mineral exploration - annual review supplement	London Mining Journal, Vol. 330, No. 8466, Feb. 6, pp. 1-8	United States, Japan, Africa, Middle East, Asia, Pacific, Europe	Exploration - brief review
DM1998-2172 1998	New York Diamonds	DDC President Haas: comments United States Chin a diamond trade will grow	New York Diamonds, March p. 62.	China, United States	News item, Diamond markets
DM1998-2199 1998	New York Diamonds	Baby boomers buying big ones... rising stock market and booming economy generated a run on 5 ct and larger....	New York Diamonds, May pp. 28-30.	United States	Diamond - markets, Diamond jewellery
DM1998-2200 1998	New York Diamonds	Strike up the brand... overview of other manufacturers who are using brand name identification.	New York Diamonds, Sept. p. 20-22.	United States	News item, Diamond - brand names, markets
DM1998-2201 1998	New York Diamonds	Red synthetics to appear on the market. ( Ultimate Created Diamondsmanufacturer).	New York Diamonds, Sept. p. 8.	United States	News item, Diamond - synthetics
DM1998-2202 1998	New York Diamonds	Big diamond buyers agree... deliver what you promise... from loose diamondsuppliers.	New York Diamonds, Sept. p. 26-27.	United States	News item, Diamond buyers, markets
DM1998-2203 1998	New York Diamonds	U.S. diamond outlook for '98 low margins, high competition	New York Diamonds, Jan. p. 20-22.	United States	News item, Economics, prices
DM1998-2439 1998	Northern Miner	Redaurum eyes Centenary's mining and smelting assets in Africa	Northern Miner, Vol. 84, No. 15, June 8-14, p. 6.	South Africa, United States, Angola	News item, Redaurum Limited
DS1998-1168 1998	Pizzolato, L.A., Schulze, D.J.	Preliminary investigations of megacrysts and peridotite xenoliths from the Kelsey Lake kimberlite.	7th. Kimberlite Conference abstract, pp. 693-5.	Colorado, Wyoming, United States	Peridotite, Deposit - Kelsey Lake
DS1998-1347 1998	Silver, D.B.	Is the mining industry consolidating or expanding	Mining Engineering, Vol. 50, No. 5, May p. 11	United States	Economics, discoveries, Success
DS1998-1446 1998	Taylor, L.D.	On depletion of an exhausting natural resource	Nonrenewable Resources, Vol. 7, No. 3, Sept. pp. 225-32	United States	Resource depletion, economics, costs
DS1998-1498 1998	United States Geological Survey (USGS)	Industrial diamond - annual review 1998	United States Geological Survey (USGS) Mineral Industry Surveys, Aug. 8p.	United States	Diamond - industrial, production, costs
DS1998-1499 1998	United States Geological Survey (USGS)	Gemstones ... annual review for 1997.Tables for in ports of diamonds forconsumption.	United States Geological Survey (USGS), July, pp. 9-11.	United States	Diamond imports, Production
DS1998-1500 1998	United States Geological Survey (USGS)	Diamond (industrial), 1998	Mineral Commodity Summaries 1998, pp. 54-5.	United States	Production, imports
DS1998-1639 1998	Zichella, V., De Gasperis, A.A., Pendock, N.E.	Mineral mapping with hyper spectral data: a case study over the Moses Rock Dyke and Mule Ear Diatreme, Utah.	7th International Kimberlite Conference Abstract, pp. 1007-8.	Utah, United States, Colorado Plateau	Remote sensing, Deposit - Moses Rock, Mule Ear
DM1999-0872 1999	Basel Magazine	Mystery surrounds new diamond process.... enhances certaincharacteristics.	Basel Magazine, May p. 15.	United States	News item, Lazare Kaplan International
DM1999-0873 1999	Basel Magazine	QVC, United States TV shopping network.. branded diamond collection for sale	Basel, Sept. p. 18.	United States	News item, QVC Shopping network - diamond sales
DS1999-0185 1999	Duval, J.S., Riggle, F.E.	Profiles of gamma ray and magnetic dat a from aerial surveys over the conterminous United States.	United States Geological Survey (USGS) CD RoM., DDS 0031, 3 cd-roms, $ 52.00	United States	Geophysics - gamma, magnetics
DM1999-0944 1999	Financial Post	Scientists make gem quality diamonds in the laboratory... heat and pressureused.	Financial Post, Aug. 19, 1p.	Russia, United States	Diamond synthesis, History
DM1999-0969 1999	Gemkey	The internet and us... the gem and jewelry industry is finding itself caught up in the Web.	Gemkey Publishing, Vol. 1, No. 4, May-June pp. 42-49.	United States	Technology - Web, Diamond markets
DM1999-1021 1999	Globe & Mail	Diamond swindles... moissanite	Globe and Mail, June 28, 1/8p.	United States	News item, Moissanite
DS1999-0350 1999	Kaplan, D.E., Caryl, C.	Dirty diamonds... could a government agent from the West and a Moscow cop stopone of the grandest schemes of thievery in modern time.	Readers Digest, Apr. pp. 145-52.	Russia, United States	Golden ADA.
DS1999-0452 1999	McCandless, T.E.	Kimberlites: mantle expressions of deep seated subduction	7th International Kimberlite Conference Nixon, Vol. 2, pp. 545-49.	United States, Wyoming, Southern Africa	Subduction - slab, Tectonics - hot spots, magmatism
DM1999-1186 1999	Mining Engineering	Industrial diamond... overview	Mining Engineering, Vol. 51, No. 6, June p. 32-4.	United States	Economics, sales, production
DM1999-1211 1999	New York Diamonds	Brand ahoy? De Beers branded diamonds will appear on the U.S. market..	New York Diamonds, May p. 36-8, 40, 42.	United States	News item, De Beers
DM1999-1212 1999	New York Diamonds	Oppenheimer calls for an end to United States ban on De Beers	New York Diamonds, July, p. 12.	United States	News item, De Beers, legal
DM1999-1213 1999	New York Diamonds	America's promise fails to deliver.. crowded diamond market	New York Diamonds, March pp. 20, 22.	United States	News item, Diamond markets
DS1999-0696 1999	Soofi, M.A., King, S.D.	A modified beam analysis effect of lateral forces on lithospheric flexure and its implication -post rift..	Tectonophysics, Vol. 306, No. 2, June 15, pp. 149-62.	United States	Tectonics, Midcontinent Rift system
DS1999-0756 1999	United States Geological Survey (USGS)	Gemstones... includes diamond	United States Geological Survey (USGS) Mineral Industry Surveys, Aug. 17p.	United States	Annual review, production, consumption, Economics
DS1999-0757 1999	United States Geological Survey (USGS)	Industrial diamond. 1998 annual review	United States Geological Survey (USGS) Mineral industry surveys, August, 9p.	United States, Global	Diamond - industrial, markets, production
DS1999-0790 1999	Whiteny, D.L., Miller, R.B., Paterson, S.R.	P T t evidence for mechanisms of vertical tectonic motion in acontractional orogen: north western United States Cord	Journal of Metamorphic Geology, Vol. 17, No. 1, Jan. 1, pp. 75-90.	Cordillera, United States, Canada, British Columbia, Yukon	Tectonics
DM2000-1080 2000	Basel Magazine	Congress tackles the hot potato of conflict diamonds	Basel Magazine, Sept. p. 15-6.	United States	News item, Conflict diamonds
DS2000-0140 2000	Carter, R.A.	Contemplating closure.... maintaining and rehabilitating...	Engineering and Mining Journal, Vol. 201, No. 9, Sept. p.96-103.	United States	Mining - environment, closure not specific to diamond
DM2000-1090 2000	Diamondfloor.coM.	Full service trading center for the diamond industry located in New York Empire State Bldg.	Diamondfloor.coM., July 10, 1p.	United States	News item - press release
DS2000-0292 2000	Finn, C.A., Pilkkington, M., et al.	Second year products of the North American magnetic anomaly database progra	Geological Society of America (GSA) Abstracts, Vol. 32, No. 7, p.A-430.	Canada, United States, Cordillera	Geophysics - magnetics
DS2000-0304 2000	Friedman, A.	Pink party.... $ 30 million of coloured and pink diamonds showcase at Pink Party preview... jewellery	23rd. Street Jewellers, Oct. 19, 2p.	United States, California	News item, Diamond - jewellery
DM2000-1171 2000	Gemkey	A diamond in the rough, gemkey.com introduces the power of the internet to$ 100 Billion gem and jewellry ind.	Gemkey, June 5, 2p.	United States	News item - press release
DS2000-0381 2000	Hames, W.E., Renne, P.R.	New evidence for geologically instantaneous emplacement of earliest Jurassic Central Atlantic magmatic province	Geology, Vol. 28, No. 9, Sept. pp. 859-62.	United States	Dike swarm
DS2000-0413 2000	Hilson, G.	Barriers to implementing cleaner technologies and cleaner production (CP) practices in mining industry	Minerals Eng., Vol. 13, No. 7, pp. 699-717.	United States, Canada, Ontario, Amazonas	Environment, Mining - practices, pollution
DM2000-1239 2000	London Financial Post	Danger in a diamond embargo. Congress should not impose a ban	London FP., Aug. 29, 1p.	United States	News item, Conflict diamonds
DS2000-0616 2000	Marhsak, S., Karlstrom, K., Timmons, J.M.	Inversion of Proterozoic extensional faults: an explanation for the pattern of Laramide and Rockies...	Geology, Vol. 28, No.8, Aug. pp. 735-8.	United States, Cordillera	Tectonics, Intracratonic deformation
DM2000-1427 2000	Mazal U'Bracha	U.S. Congress to Hall-mark diamonds.... meeting with USA Congressman Tony Hall.	Mazal U'Bracha, No. 117, p.27-35.	United States	Economics, Conflict diamonds
DM2000-1428 2000	Mazal U'Bracha	Israel: principal diamond supplier to United States	Mazal U'Bracha, No. 119, p. 28-31.	United States, Israel	Economics, Diamond market
DM2000-1433 2000	Mining Engineering	Industrial diamond - annual review 2000	Mining Engineering, Vol. 52, No. 6, June p. 44-46.	United States	Economics, Diamond - industrial
DM2000-1497 2000	Mining Weekly South Africa	America: A diamond's best friend	Mining Weekly (SA), Sept.1-7, p.2-3.	United States	News item, Diamond sales
DM2000-1498 2000	Mining Weekly South Africa	How value is added to diamonds... and the very big USA "if" ...	Mining Weekly, Vol. 6, No. 9, Mar 31-Apr 6, p. 16.	United States	News item, Legal - restrictions
DS2000-0812 2000	Reinitz, I.M., Buerki, P.R., Shigley, J.E., McClure	Identification of HPHT treated yellow to green diamonds. the saturated neon green colour is not only..	Gems and Gemology, Vol. 36, No. 2, Summer, pp. 128-37.	United States, Russia, Sweden	Diamond - GE, Novatek, treated, colour
DS2000-0858 2000	Savage, M.K., Sheehan, A.F.	Seismic anistropy and mantle flow from the Great Basin to the Great western United States.	Journal of Geophysical Research, Vol. 105, No. 6, June 10, pp. 13715-34.	United States, Montana	Geophysics - seismics
DS2000-0965 2000	United States Geological Survey (USGS)	Mineral industry surveys- gemstones. 1999 annual review. includes brief diamonds.	United States Geological Survey (USGS) Mineral Surveys, Oct. 16p.	United States	Economics, Diamond
DS2000-0966 2000	United States Geological Survey (USGS)	Mineral industry surveys- industrial diamond. 1999 annual review	United States Geological Survey (USGS) Mineral Surveys, Oct. 8p.	United States	Economics, Industrial diamond
DS2000-1019 2000	Windley, B.F.	Continental growth in the Proterozoic: a global perspective	Igc 30th. Brasil, Aug. abstract only 1p.	Canada, United States, Russia, Africa	Plate tectonics - brief overview
DM2001-1363 2001	Canadian Diamonds Magazine	Financing of diamond manufacturing and trading	Canadian Diamonds, Vol. 1, Nov. p. 43-8.	Belgium, Israel, India, United States, South Africa	News item, Banks, institutions
DM2001-1374 2001	Canadian Diamonds Magazine	North America is at war and its enemy trades in conflict diamonds.Chaim Even-Zohar commentary.	Canadian Diamonds, Vol. 1, Nov. p. 16-17.	United States	News item, Conflict diamonds
DM2001-1375 2001	Canadian Diamonds Magazine	The industry will be blamed if an effective diamond certification program is not established.	Canadian Diamonds, Vol. 1, Nov. p. 29-36.	United States	News item, Legal, government
DS2001-0209 2001	Coopersmith, H.G., Janse, A.J.A.	Diamond exploration in the United States	Nw Mining Association Meet., Dec. 7, 1p. abstr.	United States	News item
DS2001-0259 2001	DNAG	The geological map of North America. ( first new one since 1949)	Dnag, in progress	United States, Canada, North America	Map - geology
DS2001-0294 2001	Ellis, T.R.	United States views on valuation methodology.Uniform Standards of Professional Appraisal Practice (USPAP),State, Geologists licences... land uses, Federal government.	Valmin 01, Mineral Asset Valuation Oct. 25-6th., pp.1-23.	United States	Economics - methods, Mineral reserves, resources, valuation, exploration
DS2001-0321 2001	Flannery, T.	Geology: North America divestation or global cataclysm	Science, No. 5547, Nov. 23, pp. 1668.	United States, Canada	Tectonics
DM2001-1455 2001	Gem News International	Diamonds : White house conference on conflict diamonds. Comments via Levinson and Shigley.	Gems and Gemology, Gem News International, Vol. 37, spring, p. 64-66.	United States	News item, Conflict diamonds
DS2001-0367 2001	Geological Society of America	The Geological map of North America. First since 1949	Gsa Dnag, in press	North America, United States, Canada, Mexico	Map - ad, Map compilation
DM2001-1459 2001	Globe & Mail	Conflict diamond law seen as mixed blessing for Canada	Globe and Mail, Aug. 23, 1p.	Angola, Sierra Leone, United States	News item, Conflict diamonds
DM2001-1501 2001	Jewelers of America Inc.	United States retail jewelers hail legislation to ban imports of conflict diamonds: Bill critical to assure consumers..	Jewelers of America Inc., June 21, 2p.	United States	News item - press release, Conflict diamonds
DS2001-0680 2001	Levinson, A.A., Cook, F.A.	The United States of America: a cornerstone of the world gem diamond industry in the 20th. century.	Geoscience Canada, Vol. 28, No. 3, Sept. pp. 113-8.	United States	Economics - diamond industry, supply, demand
DM2001-1712 2001	London Mining Journal	Diamonds hang on United States	London Mining Journal, Vol. 337, No. 8648, Aug. 24, p. 148.	United States	News item, Conflict diamonds
DM2001-1763 2001	Mazal U'Bracha	Government questioning of sightholders is not unprecedented	Mazal U'Bracha, No. 134, June, pp. 26-29.	United States	Economics, De Beers
DM2001-1764 2001	Mazal U'Bracha	United States diamond market: analysis of polished diamond consumption 1994-2000.	Mazal U'Bracha, No. 129, Jan. pp. 45-48.	United States	Economics, Diamond - markets
DM2001-1765 2001	Mazal U'Bracha	U.S. diamond import mix.. changes dramatically	Mazal U'Bracha, No. 138, Oct.pp.22-8., No. 138, Oct.pp.22-8.	United States	News item, Economics - diamond imports
DM2001-1766 2001	Mazal U'Bracha	U.S. diamond import mix.. changes dramatically	Mazal U'Bracha, No. 138, Oct.pp.22-8., No. 138, Oct.pp.22-8.	United States	News item, Economics - diamond imports
DM2001-1779 2001	MiningWeb	America and Britain go to war on mining	Miningweb.com.za, Aug. 23, 3p.	Angola, Sierra Leone, United States	News item, Conflict diamonds
DM2001-1806 2001	MiningWeb	The con in conflict diamonds... overview of Hall's try and the comments by knowledgeable individuals.	Miningweb.com.za, Aug. 23, 3p.	United States	News item, Conflict diamonds
DM2001-2050 2001	PR Newswire	Industry representatives urge congress to approve clean diamonds trade act	Pr Newswire, Oct. 10, 2p.	United States	News item - press release, Conflict diamonds
DM2001-2086 2001	Reuters	The world gets tough on price fixers	Reuters, June 3, 9p.	United States	News item, Anti-trust overview - not specific to diamonds
DM2001-2087 2001	Reuters	Lawmaker says blood diamond accord in trouble	Reuters, Aug. 23, 2p.	United States	News item, Conflict diamonds
DM2001-2088 2001	Reuters	Blood diamonds said undetected in vast U.S. market	Reuters, Aug. 22, 2p.	United States	News item, De Beers
DM2001-2089 2001	Reuters	Private De Beers would still be barred from U.S	Reuters, May 18, 2p.	United States	News item, De Beers
DS2001-1040 2001	Schutt, D.L., Humphreys, E.D.	Evidence for a deep asthenosphere beneath North America from western United States SKS splits.	Geology, Vol. 29, No. 4, Apr. pp.291-4.	United States, Montana, California, Nevada, Washington	Tectonics, Mantle creep
DS2001-1156 2001	Thorkelson, D.J., Mortensen, Davidson, Creaser, Perez	Early Mesoproterozoic intrusive breccias in Yukon: the role of hydrothermal systems in reconstruction of NA.	Precambrian Research, Vol. 111, No. 1-4, pp. 31-55.	Canada, United States, Australia, Yukon	Tectonics
DS2001-1174 2001	United States Geological Survey (USGS)	Industrial diamond. 2000 Annual review	Mineral Industry Surveys, 9p.	United States	Economics, Industrial diamonds
DM2001-2117 2001	Wall Street Journal	De Beers Group sales are slammed by low demand for luxury products	Wall St. Journal, June 20, 3p.	United States	News item, De Beers Group
DM2001-2118 2001	Wall Street Journal	Luck of the draw... Gemprint mentioned on NBC's Law and Order show ( promotional).	Wall St. Journal, Jan. 11, 1/8p.	United States	News item, Gemprint
DM2002-1821 2002	African XChange	Significant challenges remain in deterring trade in conflict diamonds. Yager of USA general accounting.	African XChange, Spring, pp. 65-71.	Angola, Sierra Leone, Democratic Republic of Congo, United States	Conflict diamonds - legal
DS2002-0147 2002	BetterThanDiamond.com	Announces first hybrid diamond simulant to use a man made form of diamond	BetterThanDiamond.com, Jan. 14, 2p.	United States, Washington	News item - press release, Diamond-Like Carbon DLC
DS2002-0291 2002	Chulick, G.S., Mooney, W.D.	Seismic structure of the crust and uppermost mantle of North America and adjacent oceanic basins, a synthesis.	Bulletin of the Seismological Society of America, Vol. 92, 6, pp. 2478-92.	North America, United States, Canada	Geophysics - seismics, tectonics
DC2002-2815 2002	Dunsmuir Ventures Ltd	Forms alliance with Majescor Resources Inc. to explore for diamonds in the United States of America.	Dunsmuir Ventures Ltd., Nov. 26, 1p.	United States	News item - press release
DS2002-0411 2002	Dyke, A.L., Harmon, P., Mahanta, A.M.	Falcon spreads its wings. Einstein and Newton... now new ones Galileo .. brief summary of performance and rationale behind BHP Billiton business.	Preview, August pp. 25-28.	Australia, Canada, United States, Mexico, Chile, Peru, South Africa	Geophysics - magnetics, Kimberlites
DS2002-0425 2002	Ellis, T.R.	Reporting standards - the USA experience achieving true globalization - problems and solutions.	Minerals & Energy, Vol. 17, 3, pp. 15-31.	United States	Economics - SEC, IFRS, CMMI, ethics, codes
DS2002-0426 2002	Ellis, T.R.	Reporting standards - the USA experience achieving true globalization - problems and solutions.	Australian Institute of Mining and Metallurgy, No. 3/2002, pp.67-77.	United States	Mineral reserves - definitions, disclosure framework, SEC Industry Guide 7, code, competent, IVSC
DS2002-0427 2002	Ellis, T.R.	Reporting standards - the USA experience achieving true globalization - problems and solutions.	Minerals & Energy Raw Materials Report, Vol. 17, 3, Oct. 1, pp. 15-31.	United States	Ore reserves
DM2002-1916 2002	Even-Zohar, C.	Diamond banking - history, banking countries	From Mine to Mistress, Mining Journal Books, pp. 421-40.	Holland, United Kingdom, India, Israel, United States, Belgium	Book - banking, financing, Global issues
DM2002-1928 2002	Even-Zohar, C.	United States of America - history, tax, values, statistics	From Mine to Mistress, Mining Journal Books, pp. 349-68.	United States	Book - cutting centres, Country - non-producer
DS2002-0459 2002	Finn, C.A., Pilkington, M., Miles, Hernadez, Cuevas, Velez, Sweeney, Kucks	The new North American magnetic anomaly map	Geological Society of America Annual Meeting Oct. 27-30, Abstract p. 387.	United States, Canada	Map - magnetic
DS2002-0585 2002	Goes, S., Van der Lee, S.	Thermal structure of the North American uppermost mantle inferred from seismic tomography.	Journal of Geophysical Research, Vol.107,B3, pp.ETG 2-1-20	North America, United States, Midcontinent, Wyoming	Subduction, Tomography, tectonics, seismics
DS2002-0586 2002	Goes, S., Van der lee, S.	Thermal structure of the North American uppermost mantle inferred from seismic tomography.	Journal of Geophysical Research, Vol. 107, No.3, pp.	United States, Canada, North America	Geothermometry
DS2002-0691 2002	Hearld Tribune	Gemesis ready to shine. Diamond chambers could produce rough gems by Friday using a process invented in Russia and fine tuned in Sarasota ( USA).	Hearld Tribune, Nov. 21, 2p.	United States	News item
DS2002-0696 2002	Heintz, J.H.	Valuation of mineral interests in comdemnation cases	Sme Preprint, No. 02-074, 3p.	United States	Legal - brief overview, Economics - mineral interests, resources, reserves
DS2002-0730 2002	Hoernle, K., Van den Bogaard, P., Werner, R., Lissinaa, B., Hauff, F., Alvarado	Missing history ( 16 -71 Ma) of the Galapagos hotspot: implications for the tectonic	Geology, Vol. 30, 9, Sept. pp. 795-98.	United States	Tectonics
DM2002-2062 2002	London Mining Journal	North American contrasts.... industry, corporations more MMSD commentary	London Mining Journal, Vol.339,8696,Aug.2, p. 78-9.	Canada, United States	News item, Sustainable development
DM2002-2228 2002	London Mining Journal	US mining law reform bill	London Mining Journal, Vol. 338, 8690, June 21, pp. 456.	United States	News item, Legal
DM2002-2281 2002	Mining Engineering	Industrial diamond - brief overview for 2001	Mining Engineering, Vol. 54,6,p.33.	United States	Economics - imports, exports
DS2002-1085 2002	Moores, E.M., Wakabayashi, J., Unruh, J.R.	Crustal scale cross section of the U.S. Cordillera, California and beyond, its tectonic significance and speculations on the Andean Orogeny.	International Geology Review, Vol. 44, 6, pp. 479-500.	United States, California	Tectonics
DS2002-1257 2002	Pickering Jr., S.M.	Helping banks to manage mineral land trusts	Sme Preprint, No. 02-120, 2p.	United States	Legal - brief overview
DS2002-1287 2002	Puffer, J.H.	A late Neoproterozoic eastern Laurentian superplume: location, size, chemical composition and environmental impact.	American Journal of Science, Vol.302,1, pp. 1-27.	Appalachia, United States	Hot spot, Geochemistry
DS2002-1375 2002	Rudnick, R.L., Lee, C.T.	Osmium isotope constraints on tectonic evolution of the lithosphere in the southwestern United States.	International Geology Review, Vol. 44, 6, pp. 501-11.	United States, Colorado, California	Geochronology, tectonics
DS2002-1456 2002	Shearer, S., Bankey, Hill, Finn, Daniels, Snyder, Roberts	United States aeromagnetic database: a companion to the North American magnetic anomaly map.	Geological Society of America Annual Meeting Oct. 27-30, Abstract p. 387.	United States, Canada	Map - magnetic
DS2002-1483 2002	Silver, D.B.	Unraveling the mysteries of mining transactions	Fifth Joint Advanced Business Valuation Conference American Society of, Oct. 24-26, Orlando, Fla. 32p.	United States	Economics - valuation, Standards, types of properties
DS2002-1540 2002	Stagg, A.K.	The appraisal of mining enterprises - understanding and meeting the challenges	Fifth Joint Advanced Business Valuation Conference American Society of, Oct. 24-26, Orlando, Fla. 4p.	United States	Economics - valuation, Standards, types of properties
DS2002-1626 2002	USGS	Industrial diamond. 2001 annual review	Mineral Industry Surevys, U.S. Geological Survey, 9p.	United States	Overview - industrial diamond, markets
DS2002-1710 2002	Wild, M.	Valuation of mineral properties under uniform appraisal standards for Federal Land acqusitions.	Fifth Joint Advanced Business Valuation Conference American Society of, Oct. 24-26, Orlando, Fla. 14p.	United States	Economics - valuation, Standards, types of properties
DS2003-0166 2003	Brocher, T.M., Parsons, T., Trehu, A.M., Snelson, C.M., Fisher, M.A.	Seismic evidence for Wide spread serpentinized forearc upper mantle along the	Geology, Vol. 31, 3, March pp. 267-70.	California, United States	Geophysics - seismics
DS2003-0219 2003	Carrigan, C.W., Miller, C.F., Fullagar, P.D., Bream, B.R., Hatcher, R.D., Coath	Ion microprobe age and geochemistry of southern Appalachian basement, with	Precambrian Research, Vol. 120, 1-2, pp. 1-36.	Appalachia, United States	Geochronology
DS2003-0278 2003	Coopersmith, H.	An update on North American diamond exploration	Sme Annual Meeting, February 24-26, ( Brief Abstract), 1/8p.	United States, Canada, Northwest Territories	News item
DS2003-0335 2003	Dickerson, P.W.	Intraplate mountain building in response to continent-continent collision the ancestral	Tectonophysics, Vol. 365, 1-4, pp.129-142.	United States, Asia	Orogenesis
DC2003-2496 2003	Dunsmuir Ventures Ltd	Option agreement signed with BHP Minerals on North West Lake property to drill	Dunsmuir Ventures Ltd., Jan 21, 1p.	United States, Michigan	Press release, BHP Minerals
DS2003-0360 2003	Dyke, A.S., Moore, A., Robertson, L.	Deglaciation of North America	Geological Survey of Canada Open File, No. 1574, 1 CD, $ 26.00	Canada, United States	Geomorphology
DS2003-0381 2003	Ellis, T.R.	Reporting standards - the USA experience. Achieving true globalization - problems and	Canadian Institute Mining Bulletin, Vol. 96, No. 1067, Jan. pp.37-48.	United States	Reserves, resources, valuations
DS2003-0384 2003	Ernst, K.	Amex - your access to US capital markets	Pdac Short Course: Comparison Of Listing Requirements For Emerging Mineral, March 12, 13p. ( slides)	United States	Legal - exchange
DS2003-0466 2003	Gilbert, H.J., Sheehan, A.F., Dueker, K.G., Molnar, P.	Receiver functions in the western United States, with implications for upper mantle	Journal of Geophysical Research, Vol. 108, 5, ETG3 DOI 10.1029/2002JB001194.	United States, Colorado, Wyoming	Geophysics - seismics
DS2003-0569 2003	Heaman, L.M., Kjarsgaard, B.A.	The temporal evolution of North American kimberlite magmatism	8 Ikc Www.venuewest.com/8ikc/program.htm, Session 7, Abstract	Canada, United States	Kimberlite petrogenesis, Geochronology
DS2003-0583 2003	Hildenbrand, T.G., Keller, R.G., Blakely, R., Hinze, W.J.	Need for a U.S. high altitude magnetic survey	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p. 446.	United States	Geophysics
DS2003-0618 2003	Industry Watch	Clean diamonds act to help US buyers stay clear of conflict diamonds	Industry Watch, May 7, 2p.	United States	News item, Conflict diamonds
DS2003-0698 2003	Keller, R.G.	A new geological geophysical tool: the revised North American gravity database	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p. 447.	United States, Canada	Geophysics
DS2003-0732 2003	Klepsis, K.A., Clarke, G.L., Rushmer, T.	Magma transport and coupling between deformation and magmatism in the continental	Gsa Today, January pp. 4-11.	New Zealand, Andes, United States	Crust - magmatism, emplacement, melting, rheology, Not specific to diamonds
DS2003-0806 2003	Li, A., Forsyth, D.W., Fischer, K.M.	Shear velocity structure and azimuthal anisotropy beneath eastern North America from	Journal of Geophysical Research, Vol. 108, B8, 2362 Aug. 2, 10.1029/2002jb002259	United States	Geophysics - seismics
DS2003-0835 2003	Liu, Z., Bird, P.	North America plate is driven westward by lower mantle	Geophysical Research Letters, Vol. 24, 17, Dec. 15, pp. DOI 10.1029/2002GLO16002	Mantle, United States	Tectonics
DM2003-1812 2003	London Mining Journal	Eyes of the beholders... brief one page overview of Fraser Institute annual survey of	London Mining Journal, Vol. 340, 8721, Jan 31, p. 69.	Canada, United States	Charts - policy potential index, mineral index, provinc
DM2003-1951 2003	London Mining Journal	A view from within... US views and impact of American values and views on other	London Mining Journal, Vol. 341, 8752, Sept. 5, p. 172-3.	United States	News item - legal, extractive industries, resources
DC2003-2571 2003	Majescor Reosurces Inc	Three drilling campaigns planned for the next four months - aggressive drill program to	Majescor Resources Inc., March 27, 3p.	Quebec, Nunavut, United States	News item - press release
DS2003-0893 2003	Mazin, J.	BBX - the new over the counter market in the United States	Pdac Short Course: Comparison Of Listing Requirements For Emerging Mineral, March 12, 9p. ( slides)	United States	Legal - exchange
DS2003-0968 2003	Mooney, W.D.	Density structure of the upper mantle under North America	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.14.	North America, United States, Canada	Geophysics - seismics, lithosphere
DS2003-0985 2003	Murphy, J.B., Hynes, A.J., Johnston, S.T., Keppie, J.D.	Reconstructing the ancestral Yellowstone plume from accreted seamounts and its	Tectonophysics, Vol. 365, 1-4, pp.185-194.	United States	Subduction, Hotspot
DS2003-1105 2003	Pretorius, W., Helmstaedt, H.H., Kyser, K.	Platinum group element geochemistry of kimberlitic rocks - a window into the nature of	8 Ikc Www.venuewest.com/8ikc/program.htm, Session 7, POSTER abstract	United States, Canada, Greenland, Somerset Island, China	Blank
DM2003-2141 2003	Rapaport	Bush fights conflict diamonds	Rapaport News, April 27, 1/4p.	United States	News item, Legal - Clean Diamond Act
DM2003-2158 2003	Reuters	US Senate panel approves bill on conflict diamonds	Reuters, April 2, 1/2p.	United States	News item, Conflict diamonds
DS2003-1294 2003	Sloan, J., Henry, C.D., Hopkins, M., Ludington, S.	National geochronological database. Original databse by Zartman, Bush and Abston	U.s.g.s. Open File, Http://geopubs.wr.usgs.gov/open-file/of3-236,	United States	Geochronology - database ( not specific to diamonds)
DS2003-1484 2003	Wilson, D., Aster, R.	Imaging crust and upper mantle seismic structure in the southwestern United States	Leading Edge, Vol. 22, 3, pp. 232-7.	United States, Colorado, Wyoming	Geophysics - seismics
DS200412-0057 2003	Artemieva, I.M.	Structure and evolution of the continental lithosphere.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.14.	United States, Canada	Geophysics - seismics, lithosphere
DS200412-0058 2003	Artemieva, I.M., Billen, M., Leveque, J.J.	Shear wave velocity seismic attenuation and thermal structure of the continental lithosphere.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.14.	United States, Canada	Geophysics - seismics, lithosphere
DS200412-0115 2003	Bayona, G., Thomas, W.A., Van der Voo, R.	Kinematics of thrust sheets within transverse zones: a structural and paleomagnetic investigation in the Appalachian thrust belt	Journal of Structural Geology, Vol. 25, 8, pp. 1193-1212.	United States, Georgia, Alabama	Structural geology
DS200412-0118 2003	Beck, M.E., Housen, B.A.	Absolute velocity of North America during the Mesozoic from paleomagnetic data.	Tectonophysics, Vol. 377, 1, pp. 33-54.	United States, Canada	Geophysics - paleomagetism
DS200412-0144 2003	Bexfield, C.E., McBride, J.H., Pugen, A.J.M., Nelson, W.J.	Mesozoic Cenozoic deformation near the northern tip of the Madrid seismic zone.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.15.	United States, Illinois	Geophysics - seismics, lithosphere
DS200412-0194 2004	Boyd, O.S., Jones, C.H., Sheehan, A.F.	Foundering lithosphere imaged beneath the Southern Sierra Nevada, California.	Science, No. 5684, July 30, p. 660-662.	United States, California	Geophysics - MT
DS200412-0212 2003	Brocher, T.M., Parsons, T., Trehu, A.M., Snelson, C.M., Fisher, M.A.	Seismic evidence for Wide spread serpentinized forearc upper mantle along the Cascadia margin.	Geology, Vol. 31, 3, March pp. 267-70.	United States, California	Geophysics - seismics
DS200412-0241 2003	Bump, A.P.	Reactivation, trishear modeling and folded basement in Laramide uplifts: implications for the origins of intra-continental fault	GSA Today, March pp. 4-10.	United States, Arizona, Utah	Tectonics
DS200412-0266 2003	Canil, D., Schulze, D.J., Hall, D., Hearne, B.J.Jr., Milliken, S.M.	Lithospheric roots beneath western Laurentia: the geochemical signal in mantle garnets.	Canadian Journal of Earth Sciences, Vol. 40, 8, Aug. pp. 1027-51.	United States, Wyoming	Tectonics,geochemistry, geochronology, Ni thermometry
DS200412-0274 2003	Carlson, M.P., Treves, S.B.	Characterization and geologic setting of the Elk Creek carbonatite, southeast Nebraska, USA.	8 IKC Program, Session 9, POSTER abstract	United States, Nebraska	Craton studies
DS200412-0278 2004	Carlson, R.W., Irving, A.J., Schulze, D.J., Carter Hearn, B.Jr.	Timing of Precambrian melt depletion and Phanerozoic refertilization events in the lithospheric mantle of the Wyoming Craton and	Lithos, Vol. 77, 1-4, Sept. pp. 453-472.	United States, Colorado, Montana	Sloan, Williams, Homestead, geochronology, Sr Nd Hf Os
DS200412-0279 2003	Carlson, R.W., Irving, A.J., Schulze, D.J., Hearn, Jr.B.C.	Timing of lithospheric mantle modification beneath the Wyoming Craton.	8 IKC Program, Session 4, Abstract	United States, Colorado, Montana	Mantle geochemistry Geochronology, Sloan, Homestead, Williams
DS200412-0285 2003	Carrigan, C.W., Miller, C.F., Fullagar, P.D., Bream, B.R., Hatcher, R.D., Coath, C.D.	Ion microprobe age and geochemistry of southern Appalachian basement, with implications for Proterozoic and Paleozoic reconstruc	Precambrian Research, Vol. 120, 1-2, pp. 1-36.	United States	Geochronology
DS200412-0288 2004	Carter Hearn, B.Jr.	The Homestead kimberlite, central Montana, USA: mineralogy, xenocrysts, and upper mantle xenoliths.	Lithos, Vol. 77, 1-4, Sept. pp. 473-491.	United States, Montana	Peridotite, thermobarometry
DS200412-0297 2003	Cavosie, A., Selverstone, J.	Early Proterozoic oceanic crust in the northern Colorado Front Range: implications for crustal growth and initiation of basement	Tectonics, Vol. 22, 2, April 30, 10.1029/2001 TC001325	United States, Colorado, Wyoming	Tectonics
DS200412-0305 2003	Chamberlain, K.R., Frost, C.D., Frost, B.R.	Early Archean to Mesoproterozoic evolution of the Wyoming Province: Archean origins to modern lithospheric architecture.	Canadian Journal of Earth Sciences, Vol. 40, 10, Oct. pp. 1357-74.	United States, Wyoming	Tectonics
DS200412-0343 2004	Coish, R.A., Gardner, P.	Supra subduction zone peridotite in the northern USA Appalachians: evidence from mineral composition.	Mineralogical Magazine, Vol. 68, 4, Aug. 1, pp. 699-708.	United States, Appalachia	Subduction
DS200412-0389 2003	Crosswhite, J.A.,Humphreys, E.D.	Imaging the mountainless root of the 1.8 Ga Cheyenne belt suture and clues to its tectonic stability.	Geology, Vol. 31, 8, pp. 669-72.	United States, Wyoming	Geochronology
DS200412-0393 2004	Currie, C.A., Wang, K., Hyndman, R.D., He, J.	The thermal effects of steady state slab driven mantle flow above a subducting plate: the Cascadia subduction zone and backarc.	Earth and Planetary Science Letters, Vol. 223, 1-2, pp. 35-48.	United States, Washington	Subduction
DS200412-0402 2002	Daniels, D.L., Snyder, S.L.	Wisconsin aeromagnetic and gravity maps and data: a web site for distribution of data.	U.S. Geological Survey, OF 02-0230 58p.	United States, Wisconsin	Map - geophysics
DS200412-0408 2004	Dasgupta, R., Hirschmann, M.M., Withers, A.C.	Deep global cycling of carbon constrained by the solidus of anhydrous, carbonated eclogite under upper mantle conditions.	Earth and Planetary Science Letters, Vol. 227, 1-2, Oct. 30, pp. 73-85.	United States, Hawaii	Garnet, pyroxene, carbonated, melting
DC200412-3576 2004	De Beers Group	De Beers in talks to settle U.S. price fixing allegations.	Dow Jones Business News, Feb. 24, 1p.	United States	News item - De Beers, monopoly
DC200412-3594 2004	Delta Mining and Exploration Corporation	Prepares for upcoming work program at the Homestead property in Montana.	Delta Mining and Exploration Corporation, Oct. 11, 1p.	United States, Montana	News item - press release
DC200412-3595 2004	Delta Mining and Exploration Corporation	Discovers Diamondiferous kimberlite.. Homestead property.	Delta Mining and Exploration Corporation, April 15, 1p.	United States, Montana	News item - press release
DC200412-3596 2004	Delta Mining and Exploration Corporation	Microscopic diamond found in Montana... Homestead property.	Delta Mining and Exploration Corporation, Oct. 22, 1p.	United States, Montana	News item - press release
DC200412-3597 2004	Delta Mining and Exploration Corporation	Dr. Barry Rayment interviewed by the Wall Street reporter. Wyoming Craton area.	Delta Mining and Exploration Corporation, May 18, 1p.	United States, Montana	News item - press release
DC200412-3598 2004	Delta Mining and Exploration Corporation	Delta continues to be encouraged by the growth in exploration and mining activity in North America.	Delta Mining and Exploration Corporation, July 29, 1p.	United States, Montana	News item - Delta Mining
DC200412-3605 2003	Diadem Resources Ltd.	Diadem announces completion of project review and future corporate focus. Leek Springs mentioned.	Diadem Resources Ltd., June 19, 1p.	United States, California	News item - press release
DC200412-3612 2003	Diadem Resources Ltd.	Diadem acquires Otish Mountain diamond claims. Mentions Leek Springs.	Diadem Resources Ltd., July 31, 2p.	Canada, Quebec, United States, California	News item - press release
DM200412-2334 2004	Diamonds.net	PATRIOT act kits. .. providing appropriate tools required to intercept and obstruct terrorism.. Dealers in precious stones to p	Rapaport News, June 3, 2p.	United States	Diamond - diamond dealers
DS200412-0459 2004	Dixon, J.E., Dixon, T.H., Bell, D.R., Malservisi, R.	Lateral variation in upper mantle viscosity: role of water.	Earth and Planetary Science Letters, Vol. 222, 2, pp. 451-467.	United States, Colorado	Water - chemistry, xenoliths
DS200412-0477 2004	Downes, H., Macdonald, R., Upton, B.G.J., Cox, K.G., Bodinier, J-L., Mason, P.R.D., James, D., Hill, P.G., Hea	Ultramafic xenoliths from the Bearpaw Mountains, Montana: USA: evidence for multiple metasomatic events in the lithospheric mant	Journal of Petrology, Vol. 45, 8, pp. 1631-1662.	United States, Montana	Metasomatism
DS200412-0489 2004	Duecker, K., Yuan, H.	Upper mantle P wave velocity structure from PASSCAL teleseismic transects across Idaho, Wyoming and Colorado.	Geophysical Research Letters, Vol. 31, 8, April 28, DO 10.1029/2004 GLO19476	United States, Wyoming	Geophysics - seismics
DS200412-0490 2003	Dunn, D.	Diamond evaluation of the Prairie Creek lamproite province, Arkansas, USA.	8 IKC Program, Session 8, POSTER abstract	United States, Arkansas	Diamond exploration
DS200412-0491 2003	Dunn, D., Smith, D., Bergman, S.C.	Mantle xenoliths from the Prairie Creek lamproite province, Arkansas, USA.	8 IKC Program, Session 6, Abstract	United States, Arkansas	Mantle petrology Deposit - Prairie Creek
DC200412-3803 2003	Dunsmuir Ventures Ltd.	Dunsmuir reviews its U.S. exploration programs. North West property.	Dunsmuir Ventures Ltd., Sept. 2, 1p.	United States, Michigan	News item - press release
DS200412-0494 2003	Dyke, A.S., Moore, A., Robertson, L.	Deglaciation of North America.	Geological Survey of Canada Open File, No. 1574, 1 CD, $ 26.00	Canada, United States	Geomorphology
DS200412-0517 2003	Elkins-Tanton, L.T., Grove, T.L.	Evidence for deep melting of hydrous metasomatized mantle: Pliocene high potassium magmas from the Sierra Nevadas.	Journal of Geophysical Research, Vol. 108, B8, Aug. 2, 10.1029/2002 jb002168.	United States, California	Geophysics - seismics Metasomatism
DS200412-0520 2004	English, J.M., Johnston, S.T.	The Laramide Orogeny: what were the driving forces?	International Geology Review, Vol.46, 9, Sept. pp. 833-838.	United States, Wyoming	Tectonics
DS200412-0521 2003	English, J.M., Johnston, S.T., Wang, K.	Thermal modelling of the Laramide Orogeny: testing the flat slab subduction hypothesis.	Earth and Planetary Science Letters, Vol. 214, 3-4, pp.619-32.	United States, Colorado, Wyoming	Subduction, geothermometry
DS200412-0535 2004	Faul, U., Jackson, I., Fitzgerald, J.	Viscoelasticity of olivine and implications for the upper mantle.	Lithos, ABSTRACTS only, Vol. 73, p. S33. abstract	United States, New Mexico	San Carlos olivine
DM200412-2359 2004	Financial Post	De Beers set to plead guilty to price fixing.	Financial Post, July 10, 1p.	United States	News item - De Beers, industrial diamonds
DM200412-2376 2004	Financial Post	De Beers to enter plea on July 13 in price fixing case.(1994)	Financial Post, June 23, 1/8p.	United States	News item - General Electric Co.
DM200412-2383 2003	Financial Post	De Beers tries to end war with U.S. decade old antitrust ban.	Financial Post, July 28, 1p.	United States	News item - legal De Beers
DS200412-0600 2004	Gaherty, J.B.	A surface wave analysis of seismic anisotropy beneath eastern North America.	Geophysical Journal International, Vol. 158, 3, pp. 1053-66.	United States	Geophysics - seismics
DS200412-0607 2004	Gao, W., Grand, S.P., Baldridge, W.S., Wilson, D., West, M., Ni, J.F., Aster, R.	Upper mantle convection beneath the central Rio Grande rift imaged by P and S wave tomography.	Journal of Geophysical Research, Vol. 109, 3, DOI 10.1029/2003 JB002743	United States, New Mexico, Colorado Plateau	Geophysics - seismics, tectonics
DC200412-3859 2004	Gemesis Corporation	Gemesis launches comprehensive diamond identification program with EGL USA. EHL USA is only major Gemological Lab to provide bot	Gemesis Corporation, Feb. 6, 1p.	United States, Florida	News item - press release
DC200412-3860 2003	Gemesis Corporation	Gemesis cultured diamonds arrive at Alan Miller Jewellers in northwest Ohio.	Gemesis Corporation, Oct. 30, 1p.	United States, Florida	News item - press release
DC200412-3861 2003	Gemesis Corporation	Mass produced diamonds to challenge De Beers cartel, reports Wired Magazine. Sept. issue of Wired, on Gemesis Sarasota Florida	wired.com/wired, Aug. 7, 1p.	United States, Florida	News item Gemesis
DS200412-0630 2002	Gemoc Annual Report	Lithospheric mapping beneath the North American plate.	GEMOC ARC National Key Centre for the Geochemical Evolution and Metallogeny of Continents, pp. 18-19.	Canada, Northwest Territories, Saskatchewan, United States, Colorado	Structure, tectonics
DS200412-0632 2002	Gemoc Annual Report	Trace elements in mantle rocks revisited - a warning to modellers.	GEMOC ARC National Key Centre for the Geochemical Evolution and Metallogeny of Continents, pp. 40-41.	United States, Colorado	Mineral chemistry
DS200412-0664 2003	Gilbert, H.J., Sheehan, A.F., Dueker, K.G., Molnar, P.	Receiver functions in the western United States, with implications for upper mantle structure and dynamics.	Journal of Geophysical Research, Vol. 108, 5, ETG3 DOI 10.1029/2002 JB001194.	United States, Colorado Plateau	Geophysics - seismics
DM200412-2415 2004	Globe & Mail	De Beers to plead guilty in 10 year old price fixing case ( industrial diamonds with General Electric).	Globe & Mail, July 13, 1p.	United States	News item - De Beers
DS200412-0680 2004	Godey, S., Deschamps, F., Trampert, J., Sneider, R.	Thermal and compositional anomalies beneath the North American continent.	Journal of Geophysical Research, Vol. 109, B1, 10.1029/2003 JB002263	United States, Canada	Geothermometry
DC200412-3889 2004	Golconda Resources Ltd.	Drilling discovers diamonds at Shulin Lake, Alaska.	Golconda Resources Ltd., Oct. 6, 1p.	United States, Alaska	News item - press release
DS200412-0716 2003	Greenough, J.D., Kyser, T.K.	Contrasting Archean and Proterozoic lithospheric mantle: isotopic evidence from the Shonkin Sag sill (Montana).	Contributions to Mineralogy and Petrology, Vol. 145, 2, pp. 169-181.	United States, Montana	Geochronology
DS200412-0730 2003	Grove, T.L., Elkins-Tanton, L.T., Hesse, M.	Melting processes in continental lithosphere: effects of mantle metasomatism on melt composition.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.395.	United States, California	Metasomatism - not specific to diamonds
DS200412-0811 2003	Heaman, L.M., Kjarsgaard, B.A.	The temporal evolution of North American kimberlite magmatism.	8 IKC Program, Session 7, Abstract	Canada, United States	Kimberlite petrogenesis Geochronology
DS200412-0813 2003	Hearn, Jr.B.C.	Upper mantle xenoliths in the Homestead kimberlite central Montana, USA: depleted and re enriched Wyoming craton samples.	8 IKC Program, Session 6, POSTER abstract	United States, Montana	Mantle petrology Deposit - Homestead
DM200412-2422 2003	Herald Tribune Sarasota	Gemesis to micro-label its cultured diamonds.	Herald Tribune, Dec. 16, 1p.	United States	News item - Gemesis Corporation, synthetics
DM200412-2423 2004	Herald Tribune Sarasota	Gemesis teams with jewelry maker.	Herald Tribune, Feb. 5, 1p.	United States	News item - Gemesis, synthetic diamonds
DS200412-0827 2003	Hildenbrand, T.G., Keller, R.G., Blakely, R., Hinze, W.J.	Need for a U.S. high altitude magnetic survey.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p. 446.	United States	Geophysics
DS200412-0858 2003	Humphreys, E., Hessler, E., Dueker, K., Farmer, G.L., Erslev, E., Atwater, T.	How Laramide age hydration of North American lithosphere by the Farallon Slab controlled subsequent activity in the Western Unit	International Geology Review, Vol. 45, 7, July pp. 575-95.	United States, Wyoming	Subduction
DS200412-0865 2003	Ibinger, P.D., Watkins, J.M., Burton, B.R.	The character of Cordilleran magmatism in the Eocene, insights from the Sweetgrass Hills, Mt.	Geological Association of Canada Annual Meeting, Abstract only	United States, Montana	Magmatism - alkaline
DM200412-2471 2004	Idex Online	Major retailers not taking enough action on conflict diamonds.	Idex Online, March 31, 2p.	United States	News item - Global Witness
DM200412-2491 2004	Idex Online	De Beers dismisses U.S. diamond bourse President's law suit. ( supplier of choice).	Idex Online, Oct. 18, 1p.	United States	News item - De Beers
DM200412-2497 2004	Idex Online	US Gov't changes Kimberley system. ( requirements).	Idex Online, Oct. 4, 3p.	United States	News item - legal
DM200412-2545 2004	Idex Online	De Beers court order ( antitrust) postponed. No date set.	Idex Online, May 2, 1/8p.	United States	News item - De Beers
DM200412-2551 2004	Idex Online	The Lazare legend. The Lazare Kaplan story. Commentary with Leon Tempelsman.	Idex, Issue no. 165, Jan. 15, Feb. 29, 4p.	United States	History - Lazare Kaplan
DM200412-2552 2004	Idex Online	Visitor to Arkansas State Park gets 2.01 carat Christmas gift.	Idex, No. 166, Feb. 16, Feb. 19, 1/4p.	United States, Arkansas	News item - Fried Chicken Diamond
DM200412-2563 2003	Industry Watch	Clean diamonds act to help US buyers stay clear of conflict diamonds.	Industry Watch, May 7, 2p.	United States	News item Conflict diamonds
DS200412-0875 2003	Irving, A.J., Kuehner, S.M., Ellsworth, P.C.	Petrology and thermobarometry of mantle xenoliths from the Eocene Homestead kimberlites, central Montana, USA.	8 IKC Program, Session 6, Abstract	United States, Montana	Mantle petrology Deposit - Homestead
DS200412-0953 2003	Kappus, E., Anthony, E.Y., Andronicos, C.	Characterization of the continental mantle in an active rift zone, Kilbourne Hole, New Mexico.	8 IKC Program, Session 9, POSTER abstract	United States, New Mexico	Craton studies
DS200412-0969 2003	Keller, R.G.	A new geological geophysical tool: the revised North American gravity database.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p. 447.	United States, Canada	Geophysics
DS200412-1005 2003	King, J.M., Shigley, J.E.	An important exhibition of seven rare gem diamonds. ( Smithsonian .. The splendor of diamonds... to mid Sept. 2003.	Gems & Gemology, Vol. 39, Summer, pp. 136-143.	United States, Washington	News item Diamonds notable
DS200412-1006 2003	King, R.L., Kohn, M.J., Eiler, J.M.	Constraints on the petrologic structure of the subduction zone slab mantle interface from Franciscan Complex exotic ultramafic b	Geological Society of America Bulletin, Vol. 115, 9, pp. 1097-1109.	United States, California	Subduction zone
DS200412-1021 2003	Klepsis, K.A., Clarke, G.L., Rushmer, T.	Magma transport and coupling between deformation and magmatism in the continental lithosphere.	GSA Today, January pp. 4-11.	New Zealand, Andes, United States	Crust - magmatism, emplacement, melting, rheology Not specific to diamonds
DS200412-1061 2003	Kuehner, S.M., Irving, A.J., O'Brien, H.E.	A kalborsite pitiglianoite kalsilite shcherbakovite barytolam prophyllite wadeite bearing lamproitic dike from the northern Highw	8 IKC Program, Session 7, POSTER abstract	United States, Montana	Kimberlite petrogenesis
DC200412-3953 2004	Lazare Kaplan International Inc.	Reports fourth quarter and fiscal 2004. Branded products provided better margin.	Lazare Kaplan International Inc., August 24, 1p.	United States	News item - press release
DS200412-1099 2003	Lee, C.T.	Xenolith constraints on deep lithospheric dynamics beneath the central North American Cordillera.	Geological Association of Canada Annual Meeting, Abstract only	United States, Canada	Xenoliths
DS200412-1124 2003	Li, A., Forsyth, D.W., Fischer, K.M.	Shear velocity structure and azimuthal anisotropy beneath eastern North America from Rayleigh inversion.	Journal of Geophysical Research, Vol. 108, B8, 2362 Aug. 2, 10.1029/2002 jb002259	United States	Geophysics - seismics
DM200412-2794 2003	London Mining Journal	A view from within... US views and impact of American values and views on other societies and their reactions. Extracted from r	London Mining Journal, Vol. 341, 8752, Sept. 5, p. 172-3.	United States	News item - legal, extractive industries, resources
DS200412-1206 2004	Mail and Guardian	De Beers in talks to return to the US.	De Beers, Feb. 24, 1p.	United States	News item - markets
DC200412-3960 2004	Majescor Resources Inc.	US Diamond exploration expanded with Firestone Diamonds PLC to explore for kimberlitic diamond deposits in the United States.	Dunsmuir Ventures Inc., June 3, 1p.	United States	News item - press release
DC200412-3995 2003	Marum Resources Inc.	Lollypop kimberlite diamond analysis results.	Marum Resources Inc., Nov. 25, 1p.	United States, Kentucky	News item - press release
DC200412-3997 2003	Marum Resources Inc.	Marum receives stock option for Kentucky diamond exploration activities. Lollypop kimberlite , Shawnee project.	Resource Finance & Investment, May 27, 1p.	United States, Kentucky, Illinois	News item - press release
DS200412-1237 2003	Maruyama, S., Helmstaedt, H.	Fate of the subducted Farallon plate referred from eclogite xenoliths in the Colorado Plateau.	Geology, Vol. 31, 7, July pp. 589-92.	United States, Colorado	Coesite, zircon, geochronology
DS200412-1254 2003	McBride, J.H., Kolata, D.R., Hildenbrand, T.G.	Geophysical constraints on understanding the origin of the Illinois Basin and its underlying crust.	Tectonophysics, Vol. 363, 1-2, Feb. 20, pp. 45-78.	United States, Illinois	Geophysics - seismics Tectonics
DS200412-1286 2003	Medaris, L.G., Singer, B.S., Dott, R.H., Naymark, A., Johnson, C.M., Schott, R.C.	Late Paleoproterozoic climate, tectonics and metamorphism in the southern Lake Superior region and proto North America: evidence	Journal of Geology, Vol. 111, 3, pp. 243-258.	United States, Michigan	Tectonics
DM200412-2820 2004	Mineweb	No more outstanding issues - De Beers. ( US)	De Beers, July 18, 1p.	United States	News item - Price fixing industrials
DM200412-2848 2004	Mineweb	De Beers faces new nemesis. Scrutiny after USA price fixing and commentary on The Economist.	Mineweb, July 19, 1p.	United States	News item - De Beers
DM200412-2910 2004	MiningWeb	Tiffany's mining industry is no jewel.	Miningweb, March 26, 1p.	United States, Montana	News item - Tiffany's, copper, silver
DS200412-1330 2002	Mirnejad, H.	Isotope geochemistry, petrology and source evaluation of the Leucite Hills Lamproites, Wyoming.	Thesis, 'Ph.D Carleton University, 253p.	United States, Wyoming	University Microfilms ISBN 0612719421
DS200412-1352 2004	Molnar, P.,Jones, C.H.	A test laboratory based rheological parameters of olivine from an analysis of late Cenozoic convective removal of mantle lithosp	Geophysical Journal International, Vol. 156, 3, pp. 555-564.	United States, California	Mantle - slab
DS200412-1356 2003	Mooney, W.D.	Density structure of the upper mantle under North America.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.14.	United States, Canada	Geophysics - seismics, lithosphere
DS200412-1382 2003	Murphy, J.B., Hynes, A.J., Johnston, S.T., Keppie, J.D.	Reconstructing the ancestral Yellowstone plume from accreted seamounts and its relationship to flat slab subduction.	Tectonophysics, Vol. 365, 1-4, pp.185-194.	United States	Subduction Hotspot
DC200412-4069 2004	North Star Diamonds Inc.	Signs accord with Wells Fargo... to provide online banking and credit card facilities.	North Star Diamonds Inc., July 14, 1p.	United States, Washington	News item - marketing
DC200412-4072 2004	North Star Diamonds Inc.	North Star Diamonds Inc. reaches an agreement to market North American diamonds. e-commerce website	North Star Diamonds Inc., July 8, 1p.	United States	News item - press release, Wells Fargo
DM200412-2967 2004	Northern Miner	American Diamonds, Firestone ink JV in US.	Northern Miner, Vol. 90, 16, June 11-17, p. B3.	United States	News item - Firestone, Dunsmuir, Majescor
DM200412-2982 2004	Northern Miner	Wyoming geology augurs well for diamond discoveries. Gov't identifies kimberlite indicator mineral anomalies.	Northern Miner, Vol. 89, 47, Jan. 9-15, p. 4,16.	United States, Wyoming	News item - overview
DS200412-1486 2004	Overton, T.W.	Gem treatment disclosure and U.S. Law. ( diamonds and other precious gems).	Gems & Gemology, Vol. 40, 2, Summer, pp.106-127.	United States	Treatment - gems, legal
DS200412-1503 2004	Park, S.K.	Mantle heterogeneity beneath eastern California from magnetotelluric measurements.	Journal of Geophysical Research, Vol. 109, B9, B09406 10.1029/2003 JB002948	United States, California	Geophysics - MT
DS200412-1524 2004	Percival, J.A., Bleeker, W., Cook, E.A., Rivers, T., Ross, G., Van Staal, C.	PanLithoprobe Workshop IV: intra orogen correlations and comparative orogenic anatomy.	Geoscience Canada, Vol. 31, 1, pp. 23-39.	Canada, United States	Tectonics, Precambrian, geochronology, orogens
DS200412-1581 2004	Press Release	Receivers return 542 diamonds to U.S.: auction set. The gems were seized in 1999 from fugitive financier Martin Frankel ( scheme	Reuters, Oct. 21, 1p.	United States, New York	News item - gem auction
DS200412-1584 2003	Pretorius, W.,Helmstaedt, H.H., Kyser, K.	Platinum group element geochemistry of kimberlitic rocks - a window into the nature of the Diamondiferous mantle.	8 IKC Program, Session 7, POSTER abstract	United States, Canada, Nunavut, Somerset Island	Kimberlite petrogenesis
DM200412-3026 2004	Rapaport News	De Beers U.S. hearing delayed... probe officers need more time.	Rapaport News, March 12, 1/4p.	United States	News item - De Beers
DM200412-3029 2003	Rapaport News	Bush fights conflict diamonds.	Rapaport News, April 27, 1/4p.	United States	News item Legal - Clean Diamond Act
DM200412-3064 2004	Rapaport News	De Beers pleads guilty in antitrust case. 2 page overview.	Rapaport News, July 16, 2p.	United States	News item - De Beers
DM200412-3110 2003	Rapaport News	New York diamond dealers under investigation.	Rapaport News, May 22, 1/8p.	United States	News item
DM200412-3119 2004	Rapaport News	De Beers goes to U.S. court on March 11 to debate decade old antitrust charges and travel permission.	Rapaport News, Feb. 27, 2p.	United States	News item - De Beers
DM200412-3226 2004	Rapaport News	New KP reporting regulations for US.	Rapaport., Oct. 8, 1/4p.	United States	News item - Kimberley Process
DC200412-4171 2003	Resource Finance & Investment Limited	Resource Finance confirms JV for Kentucky diamond exploration.	Marum Resources Inc., August 19, 1p.	United States, Kentucky	News item - press release
DC200412-4172 2003	Resource Finance & Investment Limited	Lollypop kimberlite core submitted for caustic dissolution. Shawnee joint venture.	Resource Finance & Investment Limited, August 26, 1p.	United States, Kentucky	News item - press release Marum Resources Inc.
DM200412-3239 2004	Reuters	Update - De Beers to plead in price-fixing case.	De Beers, July 12, 1p.	United States	News item - De Beers
DM200412-3240 2004	Reuters	De Beers set for U.S. return-paper.	De Beers, July 11, 1/8p.	United States	News item - De Beers
DM200412-3251 2004	Reuters	Searching for a lost generation of miners. Labor costs and lack of trained miners.	Reuters, July 21, 2p.	United States	News item - social
DS200412-1701 2002	Rudnick, R.L., Lee, C-T.	Osmium isotope constraints on tectonic evolution of the lithosphere in the southwestern United States.	International Geology Review, Vol. 44, 6, June pp. 501-511.	United States, Colorado, Wyoming, New Mexico	Geochronology
DS200412-1723 2004	Saltzer, R.L., Stutzmann, E., Van der Hilst, R.D.	Poisson's ratio in the lower mantle beneath Alaska: evidence for compositional heterogeneity.	Journal of Geophysical Research, Vol. 109, B6, B06301, June 9, 10.1029/2003 JB002712	United States, Alaska	Geochemistry
DS200412-1813 1999	Shultz, C.H.	Jurassic kimberlite dikes. (near Dixonville, Indiana County, Fayette and Greene Counties.)	The Geology of Pennsylvania, SP 1, pp. 211-217.	United States, Pennsylvania	Petrography
DS200412-1854 2003	Sloan, J., Henry, C.D., Hopkins, M., Ludington, S.	National geochronological database. Original databse by Zartman, Bush and Abston.	U.S. Geological Survey,	United States	Geochronology - database ( not specific to diamonds)
DS200412-1914 2004	Stachnik, J.C., Abers, G.C., Christensen, D.H.	Seismic attenuation and mantle wedge temperatures in the Alaska subduction zone.	Journal of Geophysical Research, Vol. 109, B10, B10405 10.1029/2004 JBO3018	United States, Alaska	Geophysics - seismics, geothermometry
DC200412-4280 2003	Star Resources Corporation	Star to be renamed Jaguar Resources Corporation.	Jaguar Resources Corporation, Sept. 17, 1/2p.	United States, Arkansas	News item - press release
DS200412-1925 2003	Steiner, M.B.	A cratonic middle Jurassic paleopole: Callovian Oxfordian stillstand J-2 cusp, rotation of Colorado Plateau and Jurassic North A	Tectonics, Vol. 22,3,May, 10.1029/2001 TC001284	United States, Colorado	Polar wander
DS200412-1948 2004	Suppe, K.	The company I kept: the autobiography of a geologist, by John Rodgers.	American Journal of Science, Vol. 304, 3, pp. 285-6.	United States	History - book review
DM200412-3303 2004	Tacy Ltd.	Kimberley New York style... duty free.	Tacy Ltd., June 17, 1/8p.	United States	News item - story
DM200412-3312 2004	The Economist	The cartel isn't forever. An Israeli tycoon is helping to force De Beers to surrender its control of the world's diamond market.	The Economist, July 17, pp. 60-61,62.	Global, United States	News item - De Beers
DM200412-3316 2003	The Loupe ( GIA )	Smithsonian Institution exhibit showcases seven of the world's rarest diamonds.	The Loupe, GIA, Summer p. 7 ( 1p.)	United States	Diamonds - notable, Steinmetz Pink, Millenium Star colo
DM200412-3317 2004	The Motley Fool	De Beers in De Champagne. De Beers simply wants a clean slate ( USA).	De Beers, July 14, 1p.	United States	News item - industrial diamonds
DS200412-1993 2004	Tiffany & Co.	Tiffany & Co. stakes out bold position on responsible mining.	Tiffany & Co., March 24, 1p.	United States, Montana	News item - press release, silver mine, environment
DS200412-1994 2004	Tiffany & Co.	Tiffany rocks... dazzling sales and earnings numbers for fourth quarter of 2003.	Tiffany & Co., Feb. 25, 1p.	United States	News item - Aber Diamond
DS200412-2002 2004	Tollo, R.P., Corriveau, l., McLelland, J., Bartholomew, M.J.	Proterozoic tectonic evolution of the Grenville Orogen in North America.	Geological Society of America Memoir, MWR 197,pp. 1-18. ISBN 0-8137-1197-5 geosociety.org	Canada, Ontario, United States, Mexico	Book - tectonics, geodynamics
DS200412-2028 2003	Usui, T., Nakamura, E., Kobayashi, K., Maruyama, S., Helmstaedt, H.	Fate of the subducted Farallon plate inferred from eclogite xenoliths in the Colorado Plateau.	Geology, Vol. 31, 7, July, pp. 589-592.	United States, Colorado	Subduction
DS200412-2070 2003	Walker, C., Mooney, W.D., Detweiller, S.	Seismicity and lithospheric structure in southern California.	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.15.	United States, California	Geophysics - seismics, lithosphere
DS200412-2098 2004	Wenk, H.R., Lonardeli, I., Pehl, J., Devine, J., Prakapenka, V., Shen, G., Mao, H-K.	In situ observation of texture development in olivine, ringwoodite, magnesiowustite and silicate perovskite at high pressure.	Earth and Planetary Science Letters, Vol. 226, 3-4, Oct. 15, pp.507-519.	Mantle, United States, New Mexico	Magnesium silicates, San Carlos
DS200412-2101 2004	West, M., Ni, J., Baldridge, W.S., Wilson, D., Aster, R., Gao, W., Grand, S.	Crust and upper mantle shear wave structure of the southwest United States: implications for rifting and support for high elevat	Journal of Geophysical Research, Vol. 109, 3, DOI 10.1029/2003 JB002575	United States, California, Colorado Plateau	Geophysics - seismics, tectonics
DS200412-2120 2002	Williams, R.S.Jr., Ferrigno, J.G.	Satellite images of glaciers of the world: North America.	U.S. Geological Survey, P. 1386-J, pp. J 1-405 $ 76.	United States, Canada	Map - glaciers
DS200412-2127 2003	Wilson, D., Aster, R.	Imaging crust and upper mantle seismic structure in the southwestern United States using teleseismic receiver functions.	Leading Edge, Vol. 22, 3, pp. 232-7.	United States, Colorado Plateau	Geophysics - seismics
DS200412-2132 2004	Wilson, R.	The great diamond hoax of 1872.	Smithsonian, June 2004, pp. 70-79.	United States, New Mexico	News item - history
DS200412-2137 2003	Wirth, R., Rocholl, A.	Nanocrystalline diamond from the Earth's mantle underneath Hawaii.	Earth and Planetary Science Letters, Vol. 211, 3-4, June 30, pp. 357-69.	United States, Hawaii	Metasomatism, Salt Lake Crater
DS200512-0028 2005	Arndt, N.T., Herzberg, C.	The temperature of mantle plumes.	Chapman Conference held in Scotland August 28-Sept. 1 2005, 1p. abstract	United States, Hawaii	Mantle plume, geothermometry
DS200512-0033 2002	Ashchepkov, I.V., Vladykin, N.V., Mitchell, R.H., Coopersmith, H., Garanin, V.G.	Geochemical features of the minerals from the heavy concentrate from KL-1 Kelsey lake kimberlite, State Line, Colorado: petrologic reconstruction.	Deep Seated Magmatism, magmatism sources and the problem of plumes., pp. 163-173.	United States, Colorado	Geochemistry - Kelsey Lake
DS200512-0083 2005	Beutel, E.K., Nomade, S., Fronabarger, A.K., Renne, P.R.	Pangea's complex breakup: a new rapidly changing stress field model.	Earth and Planetary Science Letters, Vol. 236, pp. 471-485.	Pangea, United States, Carolinas	Dike, geochronology, plume, geochemistry
DS200512-0092 2004	Blackburn, T.J., Stockli, D., Berendsen, P., Carlson, R.W., Macpherson, G.L.	New (U-TH/He) age constraints on the emplacement of kimberlite pipes in north eastern Kansas.	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 192-2, Vol. 36, 5, p. 447.	United States, Kansas	Geochronology, Bala. Stockdale, Tuttle, Leonardville
DS200512-0107 2005	Boyd, O.S., Sheehan, A.F.	Attenuation tomography beneath the Rocky Mountain Front: implications for the physical state of the upper mantle.	American Geophysical Union, Geophysical Monograph, No. 154, pp. 361-378.	United States,Wyoming, Colorado Plateau	Geophysics - seismics, tectonics
DM200512-1343 2005	Canadian Press	Aber Diamond to expand retail chain Harry Winston to 25 stores over 3-5 years.	Canadian Press, June 9, 1p.	United States, Japan, China, Russia	News item - Aber Diamond
DS200512-0138 2005	Carlson, M.P.	The application of Basement Tectonic Research to the development of natural resources: example Midcontinent North America.	Natural Resources Research, Vol. 14, 2, pp. 125-128.	United States	Tectonics
DS200512-0150 2003	Chakhmouradian, A.R.	Titanite in carbonatitic rocks: genetic dualism and geochemical significance.	Periodico di Mineralogia, (in english), Vol. LXX11, 1. April, pp. 107-113.	Russia, Canada, Ontario, United States, Montana	Kovdor, Turiy Mys, Murun, Praire Lake, Rocky Bay
DS200512-0176 2004	Coish, R.A., Gardner, P.	Supra subduction zone peridotite in the northern USA Appalachians: evidence from mineral composition.	Mineralogical Magazine, Vol. 68, 4, Aug. 1, pp. 699-708.	United States, Appalachia	Subduction
DS200512-0184 2004	Condie, K.C., Cox, J., O'Reilly, S.Y., Griffin, W.L., Kerrich, R.	Definition of high field strength and rare elements in mantle and lower crustal xenoliths from the SE United States: the role of grain boundary phases.	Geochimica et Cosmochimica Acta, Vol. 68, 19, pp. 3919-3942.	United States, Appalachia	REE geochemistry
DS200512-0201 2004	Dahl, P.S., Hamilton, M.A., Wooden, J.L., Tracy, R.J., Loehn, C.W., Jones, C.L., Foland, K.A.	Do 2450-2480 mineral ages from Wyoming cratonic margins (USA) indicate incipient breakup of supercontinet Kenorland?	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 142-8, Vol. 36, 5, p. 340.	United States, Wyoming	Geochronology
DC200512-2402 2005	Delta Mining and Exploration Corporation	Apex Geoscience Ltd. commences work program on Montana properties. Homestake kimberlite pipe, TV Hill, Half Moon, Rattler Butte, Three Buttes, and Teigen Butte.	Delta Mining and Exploration Corporation, August 9, 1p.	United States, Montana	News item - press release
DS200512-0249 2005	Ducea, M.N., Saleeby, J., Morrison, J., Valencia, V.A.	Subducted carbonates, metasomatism of mantle wedges, and possible connections to diamond formation: an example from California.	American Mineralogist, Vol. 90, pp. 864-870.	United States, California	Sierra Nevada mantle, peridotites
DS200512-0253 2004	Duke, G.I., Frost, C.D.	Carbonatite fingerprints on Black Hills alkalic suite?	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 88-27, Vol. 36, 5, p. 224.	United States, Montana, South Dakota	Magmatism
DS200512-0278 2005	Farmer, G.L., Bowring, S.A., Willams, M.L., Christensen, N.I., Matzel, J.P., Stevens, L.	Contrasting lower crustal evolution across an Archean Proterozoic suture: physical, chemical and geochronologic studies of lower crustal xenoliths in southern Wyoming and northern Colorado.	American Geophysical Union, Geophysical Monograph, No. 154, pp. 139-162.	United States,Wyoming, Colorado Plateau	Geophysics - seismics, tectonics
DS200512-0286 2005	Ferr, E.C., Tikoff, B., Jackson, M.	The magnetic anistropy of mantle peridotites: examples from the Twin Sisters dunite, Washington.	Tectonophysics, Vol. 398, 3-4, pp. 141-166.	United States, Washington	Peridotite - not specific to diamonds
DS200512-0289 2005	Ferre, E.C., Tikoff, B., Jackson, M.	The magnetic anisotropy of mantle peridotites: examples from the Twin Sisters dunite, Washington.	Tectonophysics, Vol. 398, 3-4, April 13, pp. 141-166.	United States, Washington	Geophysics - AMS magnetometer, not specific to diamond
DS200512-0301 2005	Fox, O.C., Sheehan, A.F.	Upper mantle anisotropy beneath Precambrian Province boundaries, Southern Rocky Mountains.	American Geophysical Union, Geophysical Monograph, No. 154, pp. 347-360.	United States,Wyoming, Colorado Plateau	Geophysics - seismics, tectonics
DC200512-2573 2005	Golconda Resources Ltd.	Major drill program to start immediately on diamond property at Shulin Lake, Alaska.	Golconda Resources Ltd., Jan. 18, 1p.	United States, Alaska	News item - press release
DC200512-2574 2005	Golconda Resources Ltd.	Update on Shulin Lake, Alaska diamond project.	Golconda Resources Ltd., March 9, 1p.	United States, Alaska	News item - press release, Shear Minerals
DS200512-0408 2004	Hastings, M.	Inventing the future... This is not a real diamond.. Apollo Diamond. Plant is in a secret place!	Newsweek, Oct. 25, 3p. ( 1 page text).	United States	News item - synthetic diamonds
DS200512-0434 2005	Hinze, W.J., Aiken, C., Brozena, J., Coakley, Dater, Flanagan, Forsberg, Hildenbrand, Keller, Kellogg	New standards for reducing gravity data: the North American gravity database.	Geophysics, Vol. 70, 4, pp. J25-J32.	Canada, United States	Geophysics - gravity
DS200512-0446 2004	Hough, R.	Impact diamonds - formed in an instant.	Rough Diamond Review, No. 6, Sept.pp.	United States, California	Meteorite
DM200512-1556 2005	Idex Online	Proposal to rename NYC's 47th Street to William Goldberg Way.	Idex Online, April 14, 1/4p.	United States, New York	News item - Diamantaire
DM200512-1592 2005	Idex Online	Certifigate - now the cover up.	Idex Online, Oct. 20, 6p.	United States	News item - GIA
DM200512-1593 2005	Idex Online	Privileged access: GIA certification scandals.	Idex Online, Sept. 23, 4p.	United States	News item - GIA
DM200512-1611 2005	Idex Online	New book details Hip-Hop fascination with diamonds.	Idex Online, August 18, 1p.	United States	News item - Jewellery
DM200512-1628 2005	Idex Online	Inaugural meeting sets to unite U.S. diamond industry.	Idex Online, May 26, 1/2p.	United States	News item - Lazare Kaplan
DS200512-0503 2005	Keller, G.R., Karlstrom, K.E., Williams, M.L., Miller, K.C., Andronicos, C., Levander, A.R., Snelson, Prodehl	The dynamic nature of the continental crust-mantle boundary: crustal evolution in the southern Rocky Mountain region as an example.	American Geophysical Union, Geophysical Monograph, No. 154, pp. 403-420.	United States,Wyoming, Colorado Plateau	Tectonics
DS200512-0602 2004	Law, E., Bear, S., Van Horn, S.	Petrographic evidence of an instant freeze of kimberlite diatreme.	Geological Society of America Northeastern Meeting ABSTRACTS, Vol. 36, 2, p. 71.	United States, Pennsylvania	Tanoma kimberlite dykes, phreatomagmatism
DS200512-0624 2005	Levander, A., Zelt, C., Magnani, M.B.	Crust and upper mantle velocity structure of the Southern Rocky Mountains from the Jemez Lineament to the Cheyenne Belt.	American Geophysical Union, Geophysical Monograph, No. 154, pp. 293-308.	United States,Wyoming, Colorado Plateau	Geophysics - seismics, tectonics
DM200512-1704 2004	London Mining Journal	Sinister side...Chaim Even-Zohar comments (from his recent book Diamond Industry Strategies to Combat Money Laundering and the Financing of Terrorism.)	London Mining Journal, Nov. 12, 1p.	Global, United States	News item - AML/CFT
DS200512-0658 2004	Lowers, H.A., Harrison, W.J., Wendlandt, R.F., Meeker, G.P.	Origin of fribrous amphiboles in the Iron Hill carbonatite complex, Gunnison County, Colorado.	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 101-3, Vol. 36, 5, p. 246.	United States, Colorado	Geochemistry
DS200512-0698 2005	McCaffrey, R.	Block kinematics of the Pacific North America plate boundary in the southwestern United States from inversion GPS, seismological and geologic data.	Journal of Geophysical Research, Vol. 110, B7, B07401 10.1029/2004 JB003307	United States	Tectonics
DM200512-1885 2005	Mineweb	EWG claims mining threatens natural treasures. Updated version.. Losing ground who owns the West.	Mineweb, April 14, 2p.	United States	News item - Mining anti-mining
DM200512-1887 2004	Mineweb	US mining law must be reformed in 18 months.	Mineweb, Dec. 16, 2p.	United States	News item - mining law, legal
DM200512-1888 2005	Mineweb	Influence peddling is not mining's forte. Mining-industry lobbyists.... mining ranks 45th among the industries which have spent money to influence govt	Mineweb, April 18, 2p.	United States	News item - Mining lobby
DS200512-0752 2004	Mueller, P., Foster, D., Mogk, D., Wooden, J.	New insights into the Proterozoic evolution of the western margin of Laurentia and their tectonic implications.	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 173-6, Vol. 36, 5, p. 404.	United States, Wyoming	Geothermometry
DS200512-0815 2004	Page, F.Z.	Quartz exsolution in clinopyroxene is not proof of ultra high pressures: evidence from phase equilibration temperatures and eclogite from the eastern Blue Ridge, southern Appalachians.	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 195-3, Vol. 36, 5, p. 453.	United States, Appalachia	UHP, Ecologite
DM200512-2104 2004	Rapaport News	US issues guidelines vs money laundering, terror financing.	Rapaport, Dec. 10, 1/4p.	United States	News item - FinCen
DM200512-2216 2005	Reuters	De Beers: U.S. to drive diamond demand.	Reuters, April 11, 2p.	United States	News item - De Beers
DS200512-0921 2005	Rychert, C.A., Fischer, K.M., Rondenay, S.	A sharp lithosphere asthensphere boundary imaged beneath eastern North America.	Nature, Vol. 436, pp. 542-545.	United States, Canada	Geophysics - seismics
DS200512-0950 2005	Schulze, D.J., Harte, B., Channer, D.M.DrR., Spicuzza, M.J., Viljoen, K.S.	Stable isotope evidence for a subduction origin for mantle eclogites and their diamonds.	GAC Annual Meeting Halifax May 15-19, Abstract 1p.	United States, Colorado	Geochronology, diamond genesis
DS200512-0958 2006	SEG Conference	Wealth Creation in the Minerals Industry.	seg2006.org, May 14-16, Keystone Colorado USA	United States, Colorado Plateau	News item - conference
DS200512-0959 2004	Seifert, K.E., Olmstedt, J.F.	Geochemistry of North Shore hypabyssal dikes and sills in the midcontinent rift of Minnesota: an example - the 47th Avenue sill.	Canadian Journal of Earth Sciences, Vol. 41, 7, pp. 829-	United States, Minnesota	Dike geochemistry
DC200512-2821 2005	Shear Minerals Ltd.	Drill program commenced at Shulin Lake property, Alaska.	Shear Minerals Ltd., Feb. 9, 1p.	United States, Alaska	News item - press release, Golconda Resources
DS200512-0997 2004	Sims, P.K., Peterman, Z.E., Anderson, E.D.	Early tectonic evolution of the North America continent - a model invoking subcontinental mantle deformation.	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 244-2, Vol. 36, 5, p. 567.	United States, Canada	Tectonics
DS200512-1007 2005	Smith, D., Griffin, W.L.	Garnetite xenoliths and mantle water interactions below the Colorado Plateau southwestern United States.	Journal of Petrology, Adanvced access	United States, Arizona	Diatremes, metasomatism, subduction
DS200512-1008 2005	Smith, D., Griffin, W.L.	Garnetite xenoliths and mantle: water interactions below the Colorado Plateau, southwestern United States.	Journal of Petrology, Vol. 46, 9, pp. 1901-1924.	United States, Colorado Plateau	Xenoliths
DS200512-1009 2005	Smith, D., Griffin, W.L.	Garnetite xenoliths and mantle water interactions below the Colorado Plateau, southwestern United States.	Journal of Petrology, Vol. 46, 9, Sept. pp. 1901-9124.	United States, Colorado Plateau	Xenoliths
DS200512-1011 2005	Snelson, C.M., Keller, G.R., Miller, K.C., Rumpel, H.M., Prodehl, C.	Regional crustal structure derived from the CD-ROM 99 Seismic Refraction/Wide Angle Reflection Profile: the lower crust and upper mantle.	American Geophysical Union, Geophysical Monograph, No. 154, pp. 271-292.	United States,Wyoming, Colorado Plateau	Geophysics - seismics, tectonics
DM200512-2230 2005	The Economist	Diamonds that are a cut above. The combination of an expert system and a novel laser cutting technique could boost the value of rough diamonds.	The Economist, June 11, The Monitor Section, p. 4-5.	United States, Africa, South Africa	News item - iGem
DS200512-1084 2005	Thompson, R.N., Ottley, C.J., Smith, P.M., Pearson, D.G., Dickin, A.P., Morrison, M.A., Leat, P.T., Gibson, S.A.	Source of the Quaternary alkalic basalts, picrites and basanites of the Potrillo volcanic field, New Mexico, USA: lithosphere or convecting mantle?	Journal of Petrology, Vol. 46, 8, pp. 1603-1643.	United States, New Mexico, Colorado Plateau	Convection
DS200512-1085 2005	Thompson, R.N., Ottley, C.J., Smith, P.M., Pearson, D.G., Dickin, A.P., Morrison, M.A., Leat, P.T., Gibson, S.A.	Source of the Quaternary alkaline basalts, picrites and basanites of the Potrillo volcanic field, New Mexico, USA: lithosphere or convecting mantle?	Journal of Petrology, Vol. 46, 8, pp. 1603-1643.	United States, New Mexico, Colorado Plateau	Picrite, basanites
DS200512-1150 2004	Vogl, J.J., Foster, D., Mueller, P., Wooden, J.L.	Paleoproterozoic suturing of the Wyoming craton and Medicine Hat Block and it's influence on Phanerozoic crustal evolution.	Geological Society of America Annual Meeting ABSTRACTS, Nov. 7-10, Paper 217-2, Vol. 36, 5, p. 507.	United States, Wyoming	Accretion, magmatism
DS200512-1186 2005	Wilson, D., Aster, R., Ni, J., Grand, S., West, M., Gao, W., Baldridge, W.S., Semken, S.	Imaging the seismic structure of the crust and upper mantle beneath the Great Plains, Rio Grande Rift and Colorado Plateau using receiver functions.	Journal of Geophysical Research, Vol. 110, B5 May 28, B05306 10.1029/2004 JB003492	United States, Colorado	Geophysics - seismics
DS200512-1185 2005	Wilson, D., Aster, R., Ni, J., Grand, S., West, M., Gao, W.,Baldridge, W.S., Semken, S.	Imaging the seismic structure of the crust and upper mantle beneath the Great Plains, Rio Grande Rift, and Colorado Plateau using receiver functions.	Journal of Geophysical Research, Vol. 110, B5, 10.1029/2004 JB003492	United States, Colorado Plateau	Geophysics - seismics
DS200512-1188 2005	Winchester, S.	A crack at the edge of the world: America and the Great California Earthquake of 1906.	Amazon.com, Approx. $20.	United States	News item - book
DS200512-1226 2005	Yuan, H., Dueker, K.	Upper mantle tomographic Vp and Vs images of the Rocky Mountains in Wyoming, Colorado, New Mexico: evidence for a thick heterogeneous chemical lithosphere.	American Geophysical Union, Geophysical Monograph, No. 154, pp. 329-346.	United States,Wyoming, Colorado Plateau	Geophysics - seismics, tectonics
DS200612-0110 2006	Becker, T.W., Schulte-Pelkum, V., Blackman, D.K., Kellogg, J.B., O'Connell, R.J.	Mantle flow under the western United States from shear wave splitting.	Earth and Planetary Science Letters, in press available	United States	Geophysics - seismics, tectonics, convection
DS200612-0111 2006	Becker, T.W., Sculte Pelkum, V., Blackman, D.K., Kellogg, J.B., O Connell, R.J.	Mantle flow under the western United States from shear wave splitting.	Earth and Planetary Science Letters, Vol. 247, 3-4, pp. 235-251.	United States	Geodynamics
DS200612-0209 2006	Calasi, E., Han, J.Y., De Mets, C., Nocquet, J.M.	Deformation of the North American plate interior from a decade of continuous GPS measurements.	Journal of Geophysical Research, Vol. 111, B6, B06301.	Canada, United States	Geophysics - seismics
DS200612-0218 2005	Canil, D., Mihalynuk, M., MacKenzie, J.M., Johnston, S.T., Grant, B.	Diamond in the Atlin-Nakin a region, British Columbia: insights from heavy minerals in stream sediments.	Canadian Journal of Earth Sciences, Vol. 42, 12, Dec. pp. 2161-2171.	Canada, British Columbia, Yukon, United States, Alaska	Geochemistry
DC200612-2812 2005	Collectors Universe Inc.	Collectors Universe acquires gem certification & appraisal lab (GCAL) and enters the diamond market for third party authentication and grading.	Collectors Universe Inc., Nov. 8, 2p.	United States	News item - press release
DS200612-0285 2006	Cox, R.T., Roperch, P., Mpodozis, C., Fernandez, R.	Paleoseismicity of the southeastern Reelfoot Rift in western Tennessee and implications for intraplate fault zone evolution.	Tectonics, Vol. 25, 3, June 28, TC3019	United States	Geophysics - seismics
DS200612-0290 2006	Crowley, J.L., Schmitz, M.D., Bowring, S.A., Williams, M.L., Karlstrom, K.E.	U Pb Hf isotopic analysis of zircon in lower crustal xenoliths from the Navajo volcanic field: 1.4 Ga mafic magmatism and metamorphism beneath Colorado Plateau.	Contributions to Mineralogy and Petrology, Vol. 151, 3, pp. 313-330.	United States, Colorado Plateau	Geochronology
DC200612-2861 2005	De Beers Group	De Beers to settle most US suits for $ 250 million.. indirect diamond purchasers.	Reuters, Nov. 30, 1/2p.	United States	News item - De Beers
DC200612-2865 2006	Delta Mining and Exploration Corporation	Delta secures additional funding for further exploration on Montana properties.	Delta Mining and Exploration Corporation, Feb. 8, 1p.	United States, Montana	News item - press release
DC200612-2866 2005	Delta Mining and Exploration Corporation	Dr. Barry Rayment resigns as CEO, will stay on as a director and technical advisor, Mr. Brett Rodii.	Delta Mining and Exploration Corporation, Dec. 6, 1p.	United States, Montana	News item - press release
DC200612-2867 2006	Delta Mining and Exploration Corporation	Delta Mining and Exploration converts debt to equity. Negotiating for sufficient financing to complete work on Montana properties.	Delta Mining and Exploration Corporation, Feb. 22, 1p.	United States, Montana	News item - press release
DC200612-2868 2006	Delta Mining and Exploration Corporation	Delta Mining and Exploration prepares for second phase of ground.. Grassrange district. Three Buttes bodies.	Delta Mining and Exploration Corporation, Jan. 31, 1p.	United States, Montana	News item - press release
DC200612-2869 2006	Delta Mining and Exploration Corporation	Apex Geoscience completes second phase of work, submits samples for laboratory testing.. Grassrange district properties.	Delta Mining and Exploration, Sept. 19, 1p.	United States, Montana	News item - press release
DM200612-1928 2006	Diamonds.net	Cartier adds 'feel good' experience to brand image.	Diamonds.net, June 13, 1p.	United States	News item - Cartier branding
DM200612-1945 2006	Diamonds.net	Rep. Royce: Hazbollah active in blood diamonds.	Diamonds.net, Sept. 29, 1/2p.	United States	News item - conflict diamonds
DM200612-1951 2006	Diamonds.net	State Park visitor (Crater of Diamonds) unearthed a 1.11 carat white diamond.	Diamonds.net, June 11, 1/8p.	United States, Arkansas	News item - Crater of Diamonds
DM200612-1952 2006	Diamonds.net	Arkansas State adopts diamond for new license plate design.	Diamonds.net, March 10, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM200612-1972 2006	Diamonds.net	Dowling to leave De Beers for Meridian Gold.	Diamonds.net, August 21, 1/4p.	United States	News item - De Beers
DM200612-2004 2006	Diamonds.net	De Beers diamond syndicate vows to uphold mission.	Diamonds.Net, June 13, 1/2p.	United States	News item - DTC
DM200612-2040 2006	Diamonds.net	GIA's Boyajian resigns, Baker named acting Pres.	Diamonds.net, May 23 1/2p.	United States	News item - GIA
DM200612-2041 2006	Diamonds.net	GIA throws flashy birthday bash.	Diamonds.net, August 30, 2p.	United States	News item - GIA
DM200612-2064 2006	Diamonds.net	AGTA President robbed of jewelry worth millions. Richard Krementz Gemstone.	Diamonds.net, July 20, 1p.	United States, Texas	News item - Krementz
DM200612-2065 2006	Diamonds.net	Tradition & transition by Maurice Tempelsman.... GIA Symposium speech.	Diamonds.net, August 30, 5p.	United States, global	News item - Lazare Kaplan Tempelsman
DC200612-3014 2005	Firestone Diamonds plc.	UN to vote on conflict diamonds resolution.	Mineweb, Dec. 20, 7p.	Africa, Botswana, South Africa, United States	News item - Firestone Diamonds
DS200612-0532 2006	Harlan, S.S.	40Ar 39 Ar dates from alkaline intrusions in the northern Crazy Mountains, Montana: implications for the timing and duration of alkaline magmatism .. central	Rocky Mountain Geology, Vol. 41, 1, pp. 45-	United States, Montana	Alkalic
DS200612-0552 2006	Hayes, G.P., Johnson, C.B., Furlong, K.P.	Evidence for melt injection in the crust of northern California?	Earth and Planetary Science Letters, Vol. 248, 3-4, Aug. 30, pp. 638-649.	United States, California	Melting
DS200612-0577 2006	Hibbard, J.P., Van Staal, C.R., Rankin, D.W., Williams, H.	Lithotectonic map of the Appalachian orogen, Canada-United States of America.	Geological Survey of Canada, Map 2096A 1: 1,500,000 $ 30.00	Canada, United States	Map - tectonics
DM200612-2220 2006	Idex Online	New mountains of transparency.... United States has now followed Europe.	Idex Online, Jan. 12, 4p.	United States, Europe	News item - AML, JVC programs
DM200612-2250 2005	Idex Online	De Beers as the American Santa Claus, Class action suit in USA.	Idex Online, Dec. 1, 4p.	United States	News item - De Beers
DM200612-2252 2006	Idex Online	Joining the class.... De Beers announced settlement in four specific consumer class actions ... Leider has joined the Sullivan Agreement.	Idex Online, Feb. 16, 4p.	United States	News item - De Beers
DM200612-2263 2006	Idex Online	An Indian summer in the United States.	Idex Online, June 15, 3p.	United States	News item - diamond market
DM200612-2291 2006	Idex Online	Is FinCEN's AML/CFT jewelry rule non-compliant with international standards?	Idex Online, July 13, 3p.	Global, United States	News item - FATF
DM200612-2292 2006	Idex Online	Study cites money laundering by U.S. diamond jewelry retailers. Zdanowicz may not understand diamond industry's operations or drivers.	Idex Online, May 25, 6p.	United States	News item - FinCEN AML/CFT rules
DM200612-2294 2005	Idex Online	Certified profits. Non-profit activities of GIA.	Idex Online, Nov. 3, 4p.	United States	News item - Gemological Institute of America
DM200612-2295 2005	Idex Online	Rap's GIA connections.	Idex Online, Nov. 10, 6p.	United States	News item - GIA
DM200612-2296 2005	Idex Online	NY Times reports GIA scandal, suit in settlement negotiations.	Idex Online, Dec. 20, 1p.	United States	News item - GIA
DM200612-2300 2006	Idex Online	Bill Boyajian's fall from grace. Lack of good management.	Idex Online, March 23, 4p.	United States	News item - GIA
DM200612-2302 2006	Idex Online	GIA: paying 'money for nothing'. Several facts that ostensibly contradict material assertions made by plaintiffs in the new settled lawsuit.	Idex Online, May 11, 3p.	Global, United States	News item - GIA legal
DM200612-2307 2006	Idex Online	Neil Lane's KISS Hershey Company commissioned a brooch in the form of a KISS. $ 25,000	Idex Online, Oct. 10, 1/4p.	United States	News item - jewellery
DM200612-2310 2006	Idex Online	Research: Lazare Kaplan ready to take advantage of turn in diamond market.	Idex Online, May 25, 4p.	Global, United States	News item - Lazare Kaplan
DS200612-0620 2006	International Gemological Institute	Diamond industry prepares for 'the Blood Diamond' movie release. IGI certificate of authenticity can alleviate consumer concerns regarding origin of their diamonds.	International Geological Institute, May 25, 1/2p.	United States	News item - diamond provenance
DS200612-0675 2006	Keller, G.R., Hildenbrand, Kucks, Webring, Briesacher, Rujawitz, Hittleman, Roman, Winester, Aldouri et al.	A community effort to construct a gravity database for the United States and an associated Web portal.	In: Sinha, A.K. Geoinformatics: data to knowledge, GSA Special Paper, 397, 397, pp.21-34 r	United States	Geophysics - gravity data
DS200612-0770 2006	Lassiter, J.C.	Constraints on the coupled thermal evolution of the Earth's core and mantle, the age of the inner core and the origin of the 186 Os 188 Os core signal in plume..	Earth and Planetary Science Letters, In press - available	United States, Hawaii	Geothermometry - potassium, not specific to diamonds
DS200612-0774 2006	Lawrence, J.F., Shearer, P.M., Masters, G.	Mapping attenuation beneath North America using waveform cross correlation and cluster analysis.	Geophysical Research Letters, Vol. 33, 7, April 16, L07315	Canada, United States	Geophysics - seismics
DS200612-0782 2006	Lee, C-T.A., Cheng, X., Horodyskyj, U.	The development and refinement of continental arcs by primary basaltic magmatism, garnet pyroxenite accumulation, basaltic recharge and delamination:	Contributions to Mineralogy and Petrology, Vol. 151, 2, Feb. pp. 222-242.	United States, California	Magmatism - Sierra Nevada
DM200612-2393 2006	London Mining Journal	De Beers steady, takes charges.	London Mining Journal, Feb. 17, p. 13.	Global, United States	News item - De Beers
DS200612-0841 2006	Luke, A.J.	Boyajian passes the torch.	The Loupe, Summer, pp. 14-17.	United States	Personal profile - GIA
DS200612-0917 2006	Millard, C.	The explorer king, adventure, science and the Great Diamond Hoax: Clarence King in the Old West. Author Robert Wilson.	New York Times Book Review, No. 111, 11 March 12, p. 27.	United States	History
DM200612-2498 2006	Mineweb	EPA introduces Good Samaritan Clean Watershed Act. epa.gov/goodsamaritan	Mineweb, May 11,	United States	News item - environment, legal
DM200612-2514 2005	Mineweb	Jewelers, miners at odds on mining patent reforms. Mining Laws.	Mineweb, Nov. 17, 1p.	United States	News item - legal
DM200612-2518 2005	Mineweb	Time to renew meaningful mining law discussion.	Mineweb, Dec. 15, 1p.	United States	News item - legal
DM200612-2525 2006	Mineweb	US looks to rebuild Sarbanes-Oxley as business friendly.	Mineweb.net, Sept. 13, 1p.	United States	News item - legal
DM200612-2526 2006	Mineweb	U.S. Senate unanimously approves MINER Act. ( New Emergency Response).	Minweb, May 25, 1p.	United States	News item - legal
DM200612-2569 2006	Mineweb	GAO criticizes continued flow of conflict diamonds into US. (Government Accountability Office)	Mineweb.net, Oct. 3, 2p.	United States	News item - GAO
DS200612-0975 2006	Nichols, K.K., Bierman, P.R., Fonini, W.R., Gillespie, A., Caffee, M., Finkel, R.	Dates and rates of arid region geomorphic process.	GSA Today, August pp. 4- 11.	United States, California, Arizona	Geomorphology, desert landscapes
DC200612-3219 2006	North Star Diamonds Inc.	Announces more geological specimens shipped to office. ( no locations or more information noted ).	North Star Diamonds Inc., April 12, 1p.	United States	News item - press release
DC200612-3220 2005	North Star Diamonds Inc.	NSDM market diamonds on eBay.	North Star Diamonds Inc., Nov. 16, 1p.	United States	News item - press release
DC200612-3223 2006	North Star Diamonds Inc.	Announces lamproite discovery. Laboratory results from sample no. 2 Arkansas.	North Star Diamonds Inc., March 24, 1p.	United States, Arkansas	News item - press release
DC200612-3224 2006	North Star Diamonds Inc.	North Star Diamonds Inc. analyzes Creek 7 samples. ( no location given).	North Star Diamonds Inc., May 31, 1p.	United States	News item - press release
DC200612-3225 2006	North Star Diamonds Inc.	Announces confirmation of positive test results on geological samples from Creek 7. Comparison to Kelsey Lake.	North Star Diamonds Inc., July 12, 1p.	United States, Colorado Plateau	News item - press release
DC200612-3227 2006	North Star Diamonds Inc.	Retains geological consultants in Arkansas. Kings Consulting.	North Star Diamonds, Inc., March 1, 1p.	United States, Arkansas	News item - press release
DS200612-1075 2006	Perkins, G.B., Sharp, Z.D., Selverstone, J.	Oxygen isotope evidence for subduction and rift related mantle metasomatism beneath the Colorado Plateau, Rio Grande Rift transition.	Contributions to Mineralogy and Petrology, Vol. 151, 6, pp. 633-650.	United States, Colorado Plateau	Geochronology
DS200612-1084 2006	Peslier, A.H., Luhr, J.F.	Hydrogen loss from olivines in mantle xenoliths from Simcoe (USA) and Mexico: mafic alkalic magma ascent rates and water budget of sub-continental lithosphere	Earth and Planetary Science Letters, Vol. 242, 3-4, pp. 302-319.	United States, Canada	Xenoliths - not specific to diamonds
DM200612-2635 2005	Rapaport News	GIA, Pincione resolve bribery lawsuit, case ends.	Rapaport, Dec. 23, 1/4p.	United States	News item - GIA
DM200612-2636 2006	Rapaport News	GIA probe may involve three prominent dealers.	Rapaport, March 10, 1/4p.	United States	News item - GIA
DM200612-2638 2006	Rapaport News	Actions required to enhance clean diamond trade act. GAO	Rapaport, Sept. 29, 1/4p.	United States	News item - Government Accountability Office
DM200612-2640 2006	Rapaport News	Lazare Kaplan, Photoscribe to battle patent rights.	Rapaport, May 31, 1/8p.	United States	News item - Lazare Kaplan
DM200612-2649 2006	Rapaport News	Arkansas test results may determine North Star plan. Samples from an area near Murfreesboro are now being prepared for testing on diamond and indicator minerals.	Rapaport, Feb. 10, 1/4p.	United States, Arkansas	News item - North Star Diamonds
DS200612-1182 2005	Roy, M., MacCarthy, J.K., Selverstone, J.	Upper mantle structure beneath eastern Colorado Plateau and Rio Grande rift revealed by Bouguer gravity, seismic velocities and xenolith data.	Geochemistry, Geophysics, Geosystems: G3, Vol. 6, 10.1029/2005 GC001008	United States, Colorado Plateau	Geophysics - seismics
DS200612-1293 2006	Shram, J.G.	Contract law - the collision of tort and contract law: validity and enforceability of exculpatory clauses in Arkansas. Jordan vs diamond equipment. 2005 WL 984513	University of Arkansas at Little Rock Law Review, Vol. 28, 2, pp. 279-310.	United States, Arkansas	Mining - legal
DM200612-2671 2006	Tiffany & Co.	Tiffany profit beats estimates.	Reuters, May 31, 1p.	United States	News item - Tiffany
DS200612-1455 2006	Usui, T., Kobayashi, K., Nakamura, E., Helmstaedt, H.	Trace element fractionation in deep subduction zones inferred from a lawsonite eclogite xenolith from the Colorado Plateau.	Chemical Geology, in press available,	United States, Colorado Plateau	Eclogite, subduction, Farallon plate, coesite
DS200612-1456 2006	Usui, T., Nakamura, E., Helmstaedt, H.	Petrology and geochemistry of eclogite xenoliths from the Colorado Plateau: implications for the evolution of subducted oceanic crust.	Journal of Petrology, Vol. 47, 5, pp. 929-964.	United States, Colorado Plateau	Subduction
DS200612-1464 2005	Van der Lee, S., Frederiksen, A.	Surface wave tomography applied to the North American Upper Mantle.	American Geophysical Union, Geophysical Monograph, No. 157, pp. 67-80.	United States, Canada	Geophysics - seismics
DS200612-1500 2006	Walker, J.D., Bowers, T.D., Black, R.A., Glazner, A.F., Farmer, G.L., Carlson, R.W.	A geochemical database for western North American volcanic and intrusive rocks. NAVDAT	In: Sinha, A.K. Geoinformatics: data to knowledge, GSA Special Paper, 397, 397, pp.61-72	United States	Geochemistry - data
DS200612-1572 2006	Yoburn, J.B., Fouch, M.J., Arrowsmith, J.R., Keller, G.R.	A new GIS driven geophysical database for the southwestern United States.	In: Sinha, A.K. Geoinformatics: data to knowledge, GSA Special Paper, 397, 397,pp.249-268.	United States	Geophysics - data
DS200712-0052 2007	Baranoski, M.T., Brown, V.M., Watts, D.	Deep gas well encounters ultramafic kimberlite like material in the Sauk Sequence north eastern Ohio, USA. 1720 m deep .... 20 m zone.	Geosphere, Vol. 3, no. 3, pp. 177-183.	United States, Ohio	Ultramafics
DS200712-0212 2007	Dahl, P.S., Hamilton, M.A., Wooden, J.L., Foland, K.A., Frei, R., McCombc, J.A., Holm, D.K.	2480 Ma mafic magmatism in the northern Black Hills, South Dakota: a new link connecting the Wyoming and Superior Cratons.	Canadian Journal of Earth Sciences, Vol. 43, 10, pp. 1579-1600.	United States, Wyoming, Canada, Alberta	Magmatism
DC200712-2739 2007	Delta Mining and Exploration Corporation	Receives funding for continued exploration.	Delta Mining and Exploration Corporation, July 16, 1p.	United States, Montana	News item - press release
DC200712-2740 2007	Delta Mining and Exploration Corporation	Receives funding for continued exploration.	Delta Mining and Exploration Corporation, July 16, 1p.	United States, Montana	News item - press release
DC200712-2741 2007	Delta Mining and Exploration Corporation	Delta Mining receives results from Apex, initial indicators create optimism, further analysis required. Grassrange district.	Delta Mining and Exploration Inc., Feb. 7, 1p.	United States, Montana	News item - press release
DC200712-2742 2007	Delta Mining and Exploration Corporation	Delta Mining releases second phase exploration report - diamond indicator minerals identified; bulk sampling for macro diamonds recommended. Grassrange district.	Delta Mining and Exploration Inc., Feb. 12, 1p.	United States, Montana	News item - press release
DC200712-2743 2007	Delta Mining and Exploration Corporation	Delta Mining and Exploration prepares for Phase 3 work program thirty tonne mini-bulk sample at Homestead kimberlite.	Delta Mining and Exploration, August 6, 1p.	United States, Montana	News item - press release
DC200712-2744 2007	Delta Mining and Exploration Corporation	Delta Mining and Exploration and Apex Geoscience agree on start date for phase 3 exploration.	Delta Mining and Exploration, Oct. 12, 1p.	United States, Montana	News item - press release
DC200712-2745 2007	Delta Mining and Exploration Corporation	Receives initial deposit.	Delta Mining and Exploration, August 9, 1p.	United States, Montana	News item - press release
DC200712-2746 2007	Delta Mining and Exploration Corporation	Corporate update.. share restructuring program.	Delta Mining and Exploration, April 30, 1p.	United States, Montana	News item - press release
DC200712-2747 2007	Delta Mining and Exploration Corporation	Exploration corporate update - poor weather conditions.	Delta Mining and Exploration, Oct. 1, 1p.	United States, Montana	News item - press release
DC200712-2748 2007	Delta Mining and Exploration Corporation	Apex Geoscience on the ground ready to begin Phase III exploration.	Delta Mining and Exploration, Nov. 26, 1p.	United States, Montana	News item - press release
DM200712-1531 2006	Diamonds.net	Adia Diamonds joins lab grown industry with fancy blue offering. Synthetic.	Diamonds.net, Oct. 26, 1/8p.	United States	News item - Adia
DM200712-1544 2006	Diamonds.net	Allure of finding Canada diamonds: 50 billion shares still without owners.... CMKM fallout story to launch book.	Diamonds.net, Nov. 7, 2p.	United States	News item - CMKM
DM200712-1546 2006	Diamonds.net	Visitor finds 5.47 ct Canary diamond at Arkansas. Crater of Diamonds State Park.	Diamonds.net, Oct. 23, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM200712-1648 2007	Diamonds.net	Diamond miners VS man-made diamonds. Brian Linares of Apollo Diamond.	Diamonds.net, June 18, 2p.	United States	News item - Apollo Diamond
DM200712-1649 2007	Diamonds.net	Time Magazine: Diamonds De Novo. Apollo Diamonds.	Diamonds.net, Feb. 1, 2p.	United States	News item - Apollo Diamonds
DM200712-1691 2007	Diamonds.net	New Mexico man finds 2.28 carat diamond at Arkansas park.	Diamonds.net, Oct. 11. 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM200712-1737 2007	Diamonds.net	Editorial: De Beers $ 250 M payoff in USA.	Diamonds.net, Jan. 25, 2p.	United States	News item - De Beers
DM200712-1848 2007	Diamonds.net	Gemesis Corporation joins cultured diamond foundation.	Diamonds.net, Jan. 19, 1p.	United States, Florida	News item - Gemesis
DM200712-1849 2007	Diamonds.net	Gemesis's growth: pictures how it best.	Diamonds.net, Sept. 7, 2p.	United States, Florida	News item - Gemesis
DM200712-1850 2007	Diamonds.net	Gemesis to supply Renaissance Diamond for new jewelry collection.	Diamonds.net, May 29, 1/4p.	United States	News item - Gemesis, Renaissance
DM200712-1851 2007	Diamonds.net	Boyajian's vision lives at the GIA.	Diamonds.net, Jan. 8, 4p.	United States	News item - GIA
DM200712-1853 2007	Diamonds.net	Global diamond exchange hires new CEO.	Diamonds.net, July 11, 1/8p.	Russia, United States	News item - Gloabl Diamond Exchange
DM200712-1854 2007	Diamonds.net	Global diamond exchange hires new CEO.	Diamonds.net, July 11, 1/8p.	Russia, United States	News item - Gloabl Diamond Exchange
DM200712-1859 2007	Diamonds.net	Quantities of rough large enough to mine could exist in Minnesota.	Diamonds.net, March 2, 1p.	United States, Minnesota	News item - history
DM200712-1970 2007	Diamonds.net	De Beers $ 250 million payoff. Class action lawyers to cash in.	Diamonds.net, Jan. 8, 4p.	United States	News item - legal, De Beers
DM200712-1971 2007	Diamonds.net	Rare green diamond the focus of legal dispute. LeNature's bankruptcy claims...	Diamonds.net, Oct. 30, 1p.	United States	News item - LeNature
DM200712-1977 2007	Diamonds.net	Leviev holding company buys 229 W 43rd Street.	Diamonds.net, May 3, 1p.	United States, New York	News item - Leviev
DM200712-1987 2007	Diamonds.net	Women analyze diamond symbolism. Profile of jeweler... Firth.	Diamonds.net, Nov. 8, 2p.	United States	News item - marketing
DM200712-2101 2007	Diamonds.net	Venda drives De Beers e-commerce website.	Diamonds.net, June 18, 1/8p.	United States	News item - Venda Ltd.
DC200712-2820 2007	DiamonEx Limited	DiamonEx acquires kimberlite pipes in USA. Sloan 1 and 2.	DiamonEx Limited, Nov. 5, 2p.	United States, Colorado Plateau	News item - press release
DM200712-1488 2007	DIB Online	Wisconsin man discovers 3.92 carat diamond at State Park.	Diamond Intelligence Briefs, Oct. 25, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DM200712-1506 2007	DIB Online	Gemesis plans to expand its cultured diamonds plant.	DIB Online, August 28. 1/2p.	United States, Florida	News item - Gemesis
DM200712-1507 2007	DIB Online	Taryn Rose designs jewelery line using Gemesis lab grown diamonds.	DB Online, Sept. 19, 1/4p.	United States, Florida	News item - Gemesis
DM200712-2113 2007	DIB Online	Wisconsin man discovers 3.92 carat diamond at State Park.	Diamond Intelligence Briefs, Oct. 25, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DS200712-0304 2005	Farmer, G.L., Bowring, S.A., Williams, M.I., Christiensen, N.I., Matzel, J., Stevens, I.	Contrasting lower crustal evolution across an Archean Proterozoic suture, physical, chemical and geochronologic studies of lower crustal xenoliths....	Keller & Karlstrom: The Rocky Mountain Region, American Geophysical Union, No. 154, pp. 139-162.	United States, Wyoming, Colorado Plateau	Geochronology
DS200712-0319 2007	Flesch, L.M., Holt, W.E., Haines, A.J., Wen, L., Shen-Tu Bingming	The dynamics of western North America: stress magnitudes and the relative role of gravitational potential energy, plate interaction, boundary and basal	Geophysical Journal International, Vol. 169, 3, pp. 866-896.	United States, Canada	Tectonics
DS200712-0321 2006	Foster, D.A., Mueller, P.A.,Mogk, D.W., Wooden, J.L., Vogl, J.J.	Proterozoic evolution of the western margin of the Wyoming Craton: implications for the tectonic and magmatic evolution of the northern Rocky Mountains.	Canadian Journal of Earth Sciences, Vol. 43, 10, pp. 1601-1619,	United States, Wyoming, Colorado Plateau	Magmatism
DS200712-0335 2007	Frost, R.B., Frost, C.D., Chamberlain, K.R.	Constraints on the relations between the Wyoming and the Slave Provinces.	Geological Association of Canada, Gac-Mac Yellowknife 2007, May 23-25, Volume 32, 1 pg. abstract p.28-29.	Canada, Northwest Territories, United States, Wyoming	Geochronology
DS200712-0359 2007	GIA	Do you know your diamond? GIA launches its first U.S. National public awareness campaign.	GIA, Oct. 12, 1p.	United States	News item - Diamond Grading Reports
DS200712-0361 2007	Gilbert, H., Velasco, A.A., Zandt, G.	Preservation of Proterozoic terrane boundaries within the Colorado Plateau and implications for its tectonic evolution.	Earth and Planetary Science Letters, Vol. 256, 1-2, June 15, pp. 237-248.	United States, Colorado Plateau	Tectonics
DC200712-2886 2007	Global Diamond Exchange Inc.	Changes ownership .. Sib Almaz.	Global Diamond Exchange Inc., Sept. 17, 1p.	United States	News item - press release
DC200712-2890 2006	Global Diamond Exchange Inc.	Global Diamond Exchange wholesale office opens next week in time for arrival of first diamond shipment.	Global Diamond Exchange, Nov. 1, 1p.	United States	News item - press release
DC200712-2891 2006	Global Diamond Exchange Inc.	Global Diamond grading stones, set to open office in New York.	Global Diamond Exchange, Nov. 8, 1p.	United States	News item - press release
DC200712-2892 2007	Global Diamond Exchange Inc.	Second order of diamonds arrives in New York, currently being graded.	Global Diamond Exchange, Jan. 11, 1p.	United States	News item - press release
DC200712-2893 2007	Global Diamond Exchange Inc.	Second shipment sold out, third order placed.	Global Diamond Exchange, Jan. 24, 1p.	United States, Russia	News item - press release
DC200712-2894 2007	Global Diamond Exchange Inc.	Offers updates on merger/acquisition and future business strategy.	Global Diamond Exchange Inc., August 15, 1p.	United States	News item - press release
DS200712-0407 2007	Hammond, S.J., Parkinson, I.J., James, R.H., Rogers, N.W., Harvey, J.	Delta 7 Li systematics of mantle xenoliths from Kilbourne Hole: unravelling metasomatic and differential processes.	Plates, Plumes, and Paradigms, 1p. abstract p. A373.	United States, New Mexico, Colorado Plateau	Metasomatism
DS200712-0408 2007	Hana, B.B., Blichert-Toft, J., Kingsley, R.H., Schilling, J-G.	Source origin of the ultrapotassic lavas from the Leucite Hills, Wyoming: Hf isotope constraints.	Plates, Plumes, and Paradigms, 1p. abstract p. A375.	United States, Wyoming, Colorado Plateau	Lamproite
DS200712-0417 2007	Harwood, B.P.	Development of a new technique for classifying garnet and ilmenite from kimberlite, using crystal structural information.	Geological Association of Canada, Gac-Mac Yellowknife 2007, May 23-25, Volume 32, 1 pg. abstract p.38.	Africa, South Africa, United States, Wyoming, Canada, Ontario, Attawapiskat	XRD
DS200712-0457 2007	Humphreys, E.D., Coblenze, D.D.	North American dynamics and western U.S. tectonics.	Reviews of Geophysics, Vol. 45, 3, R3001.	United States	Geodynamics
DM200712-2209 2007	Idex Online	The U.S.: a changing market.	Idex Magazine, Feb. 3p.	United States	History
DM200712-2210 2007	Idex Online	The melting pot: a brief history of the US diamond industry.	Idex Magazine, Feb. 4p.	United States	History
DM200712-2211 2007	Idex Online	Protective tariffs.	Idex Magazine, Feb. 2p.	United States	History
DM200712-2216 2007	Idex Online	2.37 carat diamond discovered in Arkansas. Named: The Star of Thelma.	Idex Online, Jan. 1, 1/4p.	United States, Arkansas	News item - Crater of Diamonds Park
DM200712-2253 2007	Idex Online	Fabrikant's main lenders settle for 55 cents to the dollar - trade creditors may be left in the cold.	Idex Online, Jan. 11, 6p.	United States	News item - Fabrikant
DM200712-2258 2007	Idex Online	U.S. tax officials: biting without teeth.	Idex Online, Feb. 8, 3p.	United States	News item - legal
DS200712-0541 2007	Kil, Y., Wendlandt, R.F.	Depleted and enriched mantle processes under the Rio Grande rift: spinel peridotite xenoliths.	Contributions to Mineralogy and Petrology, Vol. 54, 2, pp. 135-151.	United States, Colorado Plateau	Xenoliths
DS200712-0542 2007	Kil, Y., Wendlandt, R.F.	Depleted and enriched mantle processes under the Rio Grande rift: spinel peridotite xenoliths.	Contributions to Mineralogy and Petrology, Vol. 54, 2, pp. 135-151.	United States, Colorado Plateau	Xenoliths
DS200712-0623 2007	Li, X., Yuan, X., Kind, R.	The lithosphereasthenosphere boundary beneath the western United States.	Geophysical Journal International, Vol. 170, 2, pp. 700-710.	United States	Geophysics - seismics
DS200712-0666 2006	Madsen, J.K., Thorkelson, D.J., Friedman, R.M., Marshall, D.D.	Cenozoic to Recent plate configuration in the Pacific Basin: ridge subduction and slab window magmatism in western North America.	Geosphere, Vol. 2, pp. 11-34.	United States, Canada	Subduction
DS200712-0719 2007	Merrer, S., Cara, M., Rivera, L., Ritsema, J.	Upper mantle structure beneath continents: new constraints from multi-mode Rayleigh wave dat a in western North America and southern Africa.	Geophysical Research Letters, Vol. 34, 6, L06309.	United States, Africa, South Africa	Geophysics - seismics
DM200712-2424 2006	Mineweb	U.S. Miners face mining law reform, more regulation and big fistfight in new Congress.	Mineweb.net, Dec, 11, 2p.	United States	News item - legal
DM200712-2437 2006	Mineweb	Pro-mining ranks shrink as Democrats control house, gain Senate seats.	Mineweb.net, Nov. 8, 1p.	United States	News item - political
DM200712-2505 2007	Mineweb	Is Hardrock Mining and Reclamation Act sound U.S. economic policy?	Mineweb.net, Nov. 5, 2p.	United States	News item - legal
DM200712-2506 2007	Mineweb	House democrats overwhelmingly pass US Mining law reform, gross royalty.	Mineweb.net, Nov. 2, 1p.	United States	News item - legal
DM200712-2507 2007	Mineweb	US mining law compromise urged by Senate Majority Leader Harry Reid. More workable compromise needed befor changing laws.	Mineweb.net, August 22, 2p.	United States	News item - legal
DS200712-0731 2006	Mirnejad, H., Bell, K.	Origin and source evolution of the Leucite Hills lamproites: evidence from Sr Nd Pb O isotopic compositions.	Journal of Petrology, Vol. 47, 12, pp. 2463-2489.	United States, Wyoming, Colorado Plateau	Lamproite
DS200712-0758 2006	Mueller, P.A., Frost, C.D.	The Wyoming Province: a distinctive Archean Craton in Laurentian North America.	Canadian Journal of Earth Sciences, Vol. 43, 10, pp. 1391-1397.	United States, Wyoming, Colorado Plateau	Craton
DS200712-0759 2006	Mueller, P.A., Frost, C.D.	The Wyoming province: a distinctive Archean craton in Laurentian North America.	Canadian Journal of Earth Sciences, Vol. 43, 10, pp. 1391-1397.	United States, Wyoming, Colorado Plateau	Craton, model
DC200712-3089 2007	Peregrine Diamonds Ltd.	Peregrine enters into a new Falcon (TM) system deployment agreement. Various diamond, copper and IOG properties.	Peregrine Diamonds Ltd., July 9, 1p.	Canada, United States, Mexico, South America, Peru	News item - press release
DC200712-3090 2007	Peregrine Diamonds Ltd.	Peregrine enters into a new Falcon (TM) system deployment agreement. Various diamond, copper and IOG properties.	Peregrine Diamonds Ltd., July 9, 1p.	Canada, United States, Mexico, South America, Peru	News item - press release
DS200712-0868 2006	Ramos, F.C., Reid, M.R., Sims, K.W.W.	Re-evaluating the mantle structure underlying the southwestern US.	Geochimica et Cosmochimica Acta, In press available	United States, Colorado Plateau	Geochronology
DM200712-2590 2007	Rapaport News	Certified diamond auction to be launched.	Rapaport, August 14, 1p.	United States	News item - press release
DM200712-2591 2007	Rapaport News	Diamond industry, Governments, NGOs to help African diggers.	Rapaport Diamond Conference, Feb. 5,	United States, New York	News item - press release
DM200712-2610 2007	Resource Investor	Surat's diamond trade faces U.S. African tax woes.	Resource Investor, June 26, 1p.	Africa, United States	News item - Surat
DS200712-0938 2006	Sarasota Herald Tribune	Diamonds lure visitors to a park in Arkansas. Crater of Diamonds.	Sarasota Herald Tribune, Nov. 11, 1/2p.	United States, Arkansas	News item - history
DS200712-0959 2007	Schulze, D.J., Coopersmith, H.G., Harte, B., Pizzolato, L-A.	Mineral inclusions in diamonds from the Kelsey Lake mine, Colorado, USA: depleted Archean Mantle beneath the Proterozoic Yavapai Province.	Geochimica et Cosmochimica Acta, Vol. 72, 6, pp. 1685-1695.	United States, Colorado Plateau	Deposit - Kelsey Lake
DS200712-0989 2006	Silver, P.G., Hahn, B.C., Kreemer, C., Holt, W.E., Haines, J.	Convergent margins, growing and shrinking continents, and the Wilson cycle.	Geological Society of America Annual Meeting, Vol. 38, 7, Nov. p. 212 abstract	United States	Basin and Range, Wilson Cycle
DS200712-0993 2006	Sinha, A.K., Lin, K., Hana, B.B., Shirey, S.B., Shervais, J.W., Seber, D.	Informatics based discovery and integration of dat a towards understanding the fate of paleo-lithospheres for eastern North America.	Geological Society of America Annual Meeting, Vol. 38, 7, Nov. p. 448. abstract	United States, Appalachia	SCLM
DS200712-1017 2007	Song, T-R.A., Helberger, D.V.	A depleted destabilized continental lithosphere near the Rio Grande Rift.	Earth and Planetary Science Letters, Vol. 262, 1-2, pp. 175-184.	United States, Colorado Plateau	Tectonics
DS200712-1082 2007	Thorleifson, L.H., Harris, K.L., Hobbs, H.C., Jennings, C., Knaeble, Lively, Lusar, Meyer	Till geochemical and indicator mineral reconnaissance of Minesota.	Minnesota Geological Survey, Open File, 07-01, 512p. ( 7p.summary on line)	United States, Minnesota	Geochemistry
DS200712-1102 2006	USGS	2005 Minerals Yearbook .. diamonds, industrial.	U.S. Geological Survey, Sept. 11p.	United States	Diamond - import
DS200712-1103 2007	Usui, T., Kobayahsi, K., Nakamura, E., Helmstaedt, H.	Trace element fractionation in deep subduction zones inferred from a lawsonite eclogite xenolith from the Colorado Plateau.	Chemical Geology, Vol. 239, 3-4, April 30, pp. 336-351.	United States, Colorado Plateau	Subduction
DM200712-2637 2006	Washington Diamond	How to avoid buying a conflict diamond.... source of Canadian diamonds.	Washington Diamond, Dec. 11, 1p.	Canada, United States	News item - legal
DS200712-1141 2007	Welford, J.K., Hearn, E.H., Clowes, R.M.	Possible role of midcrustal igneous sheet intrusions in cratonic arch formation.	Tectonics, Vol. 26, 11p.	United States, Canada	Cratonic arches
DS200712-1154 2007	Whitmeyer, S.J., Karlstrom, K.E.	Tectonic model for the Proterozoic growth of North America.	Geosphere, Vol. 3, no. 4, pp. 220-259.	Canada, United States	Tectonics
DS200712-1155 2007	Whitmeyer, S.J., Karlstrom, K.E.	Tectonic model for the Proterozoic growth of North America.	Geosphere, Vol. 4, pp. 220-259.	United States, Canada	Tectonics - Rodinia, Laurentia
DS200712-1233 2006	Zhao, G., Sun, M., Wilde, S.A., Li, A., Zhang, J.	Some key issues in reconstructions of Proterozoic supercontinents.	Journal of African Earth Sciences, Vol. 28, 1, Oct. 15, pp. 3-19.	Russia, United States	Aldan, Wyoming , Laurentia, paleomagnetism
DS200812-0116 2008	Blackburn, T.J., Stockli, D.F., Carlson, R.W., Berendsen, P.	U Th /He dating of kimberlites - a case study from north eastern Kansas.	Earth and Planetary Science Letters, Vol. 175, 1-2, pp. 111-120.	United States, Kansas	Geochronology - Riley
DS200812-0172 2007	Callahan, C.N., Roy, M., Condie, K.C.	Using xenoliths to explore variations in upper mantle composition and the relation of composition to seismic velocity structure beneath the Colorado Plateau.	Geological Society of America Annual Meeting 2007, Denver Oct. 28, 1p. Abstract	United States, Colorado Plateau	Geophysics - seismics
DS200812-0186 2008	Castor, S.B.	Rare earth deposits of North America.	Resource Geology, Vol. 58, 4, pp. 337-347.	United States, Canada	Carbonatite
DM200812-1564 2008	cbs4denver.com	Residents dig in to fight possible diamond mine.	cbs4denver.com, Sept. 21, 1p.	United States, Colorado Plateau	News item - DiamonEx
DS200812-0219 2008	Choi, S.H., Shervais, J.W., Mukasa, S.B.	Supra subduction and abyssal mantle peridotites of the Coast Range ophiolite, California.	Contributions to Mineralogy and Petrology, Vol. 156, 5, pp. 551-576.	United States, California	Subduction
DS200812-0229 2008	Collicoat, J.S.	Pelletal lapilli ultramafic diatremes, Avon volcanic district, Missouri.	Geological Society of America North Central Section, April 24, abstract	United States, Missouri	Melilite, alnoite, carbonatite, kimberlite
DM200812-1616 2008	Creamers Mining Weekly	De Beers sees hope in US, to double and spend.	Creamers Mining Weekly, Nov. 18, 1p.	United States	News item - De Beers
DM200812-1617 2008	Creamers Mining Weekly	De Beers coughs up $ 259 m in settlement but denies wrongdoing.	Creamers Mining Weekly, Jan. 11, 1/4p.	United States	News item - De beers
DS200812-0252 2008	Cross, R.S., Freymueller,I.T.	Evidence for and implications of a Bering plate based on geodetic measurements from the Aleutians and western Alaska.	Journal of Geophysical Research, Vol. 113, B7 B7405.	United States, Alaska	Geophysics - seismics
DS200812-0253 2008	Cstor, S.B.	The Mountain Pass rare earth carbonatite and associated ultrapotassic rocks, California.	Canadian Mineralogist, Vol. 46, 4, August pp.	United States, California	Carbonatite
DC200812-2996 2008	Delta Mining and Exploration Corporation	Acquires mineral rights to Homestead target.	Delta Mining and Exploration Corporation, May 1, 1p.	United States, Montana	News item - press release
DC200812-2997 2008	Delta Mining and Exploration Corporation	Delta Mining announces Grassrange district exploration update.	Delta Mining and Exploration Corporation, October 2, 1p.	United States, Montana	News item - press release
DC200812-2998 2008	Delta Mining and Exploration Corporation	Corporate update... samples have not been analyzed as yet. PinkSheets.com engaged to comply with requirements.	Delta Mining and Exploration Corporation, April 24, 1p.	United States, Montana	News item - press release
DC200812-2999 2008	Delta Mining and Exploration Corporation	Completes pink sheets disclosure requirements: status updated.	Delta Mining and Exploration Corporation, October 14, 1p.	United States, Montana	News item - press release
DC200812-3000 2008	Delta Mining and Exploration Corporation	Delta to begin microdiamond analysis of Three Buttes kimberlite.	Delta Mining and Exploration Corporation, October 17, 1p.	United States, Montana	News item - press release
DC200812-3001 2008	Delta Mining and Exploration Corporation	Delta Mining and Exploration releases revised Apex Geosciences post field memo... Homestead property.	Delta Mining and Exploration Corporation, Feb. 6, 1p.	United States, Montana	News item - press release
DC200812-3002 2008	Delta Mining and Exploration Corporation	Releases bulk sample post field memo provided by Apex Geoscience.	Delta Mining and Exploration, Jan. 15, 1p.	United States, Montana	News item - press release
DC200812-3003 2008	Delta Mining and Exploration Corporation	Apex Geoscience to begin exploration work on Three Buttes.	Delta Mining and Exploration, October 29, 1p.	United States, Montana	News item - press release
DC200812-3004 2008	Delta Mining and Exploration Corporation	Delta Mining and Exploration commence processing mini-bulk sample from the Homestead kimberlite.	Delta Mining and Exploration, July 28, 1p.	United States, Montana	News item - press release
DC200812-3005 2008	Delta Mining and Exploration Corporation	Extends lease agreement on the 7,325 acre Ranch property.	Delta Mining and Exploration, August 21, 1p.	United States, Montana	News item - press release
DM200812-1712 2008	Denvernews	Some Larimer Co. residents don't want diamond mine. Anti - Diamonex exploratory drilling.	Denvernews, Sept. 14, 1/8p.	United States, Colorado Plateau	News item - DiamonEx
DM200812-1713 2008	Denverpost.com	Diamond mining delayed in Larimer.	Denverpost.com, Nov. 11, 1p.	United States, Colorado Plateau	News item - DiamonEx
DM200812-1725 2007	Diamonds.net	1,000 diamond of '07 found at Crater of Diamonds.	Diamonds.net, Dec. 11, 1p.	United States, Arkansas	News item - Crater of Diamonds
DM200812-1825 2008	Diamonds.net	Visitor find 4 ct + diamond at Crater of Diamonds State Park.	Diamonds.net, August 15, 1/8p.	United States, Arkansas	News item - Crater of Diamonds
DM200812-1865 2008	Diamonds.net	De Beers welcomes ruling in class action diamond court case.	Diamonds.net, April 15, 1/4p.	United States	News item - De Beers
DM200812-1866 2008	Diamonds.net	De Beers execs visit Johnson Smith Univ as guests.	Diamonds.net, July 15, 1p.	United States, North Carolina	News item - De Beers
DM200812-1961 2008	Diamonds.net	Gemesis exhibits fancy colour cultured diamond collection in Beverely Hills.	Diamonds.net, Feb. 22, 1/4p.	United States, Florida	News item - Gemesis
DM200812-2187 2008	Diamonds.net	Sundance Diamonds appoints Pope as Gen. manager.	Diamonds.net, May 22, 1/4p.	United States, Utah	News item - Sundance synthetic
DC200812-3070 2008	DiamonEx Limited	Quarterly activities report.. Lerala mine construction, Tuli prospecting, Sloan etc.	DiamonEx Limited, Jan. 31, 7p.	Africa, Botswana, United States, Wyoming, State Line	News item - press release
DC200812-3071 2008	DiamonEx Limited	Red Feather newest site for diamond exploration.	DiamonEx Limited, May, 2p.	United States, Colorado Plateau	News item - DiamonEx
DM200812-2314 2008	DIB Online	Birks & Mayors to be exclusive distributor of Botswana diamonds in North America. DTC	Diamond Intelligence Briefs, June 3, 1p.	Canada, United States	News item - DTC
DM200812-2376 2008	DIB Online	New body scanning device said to detect smuggled diamonds. 'Millimeter Waves' to be installed at some airports.	Diamond Intelligence Briefs, July 14, 1/2p.	United States	News item - legal
DM200812-2377 2008	DIB Online	New rough diamond regulations issued in U.S.	Diamond Intelligence Briefs, May 26, 1/8p.	United States	News item - legal
DM200812-2426 2008	DIB Online	Rio Grande begins distribution of Suncrest yellow diamonds. ( synthetics - Sundance)	Diamond Intelligence Briefs, June 2, 1/8p.	United States	News item - Suncrest
DM200812-2433 2008	DIB Online	Asia Muhammad makes U.S. open debut with diamond studded tennis racquet.	Diamond Intelligence Briefs, August 26, 1/4p.	United States	News item - tennis racquet
DS200812-0304 2008	Dunn, D.P.	Arkansas crustal xenoliths: implications for basement rocks of the northern Gulf Coast.	Geological Society of America South Central Section, March 30, abstract	United States, Arkansas	Xenoliths
DS200812-0308 2008	Eaton-Magana, S.	Hope diamond meets its match. Aurora Butterfly of Peace... coloured diamonds.	The Loupe, Vol. 17, 3, summer, p. 1.	United States	Technology - coloured diamonds
DS200812-0395 2008	Geological Society of America	Geologic map of North America.	geosociety.org, CSM001R $ 35.00	United States, Canada	Map - geology
DC200812-3111 2008	Global Diamond Exchange Inc.	Changes location, appoints new president.	Global Diamond Exchange Inc., Oct. 14, 1p.	United States	News item - press release
DM200812-2484 2008	Globe & Mail	Diamond prospector's (Fipke) gem will 'run for the roses' Tale of Ekati earns a start in Saturday's Triple Crown race.	Globe & Mail, April 28, 1p.	United States	News item - history
DS200812-0428 2008	GreatFalls Tribune	Grass Range mine shows promise of holding diamonds. Delta's Rodii is interviewed.	GreatFalls, Tribune, May 26, 2p.	United States, Montana	News item - Delta
DS200812-0452 2007	Hatcher, R.D., Bream, B.R., Merschat, A.J.	Tectonic map of the southern and central Appalachians: a tale of three orogens and a complete Wilson cycle.	Geological Society of America, Memoir, No. 200, pp. 595-632.	United States, Appalachia	Tectonics
DS200812-0490 2008	Huang, J., Veronneau, M., Mainville, A.	Assessment of systematic errors in the surface gravity anomalies over North America using the GRACE gravity model.	Geophysical Journal International, Vol. 175, 1, pp. 46-54.	United States, Canada	Geophysics - gravity
DM200812-2547 2008	Idex Online	U.S. Government views on laundering in the diamond industry.	Idex Online, March 27, 5p.	United States	News item - consumer confidence
DM200812-2554 2008	Idex Online	The De Beers anti-trust settlement: winners and losers.	Idex Online, April 17, 4p.	United States	News item - De Beers
DM200812-2598 2008	Idex Online	U.S. rough diamond trade underscores erratic market.	Idex Online, June 12, 1/4p.	United States	News item - diamond imports
DM200812-2606 2008	Idex Online	Truth and Justice - no blackmail or extortion. JKD has filed a motion alleging John Stafford is resorting to extortion and blackmail .. Certifigate.	Idex Online, May 22, 3p..	United States	News item - legal
DM200812-2615 2008	Industrialinfo.com	Canada and the US mining industry - 1st edition. Laminated high resolution 72' by 72' 930 operational mines and 220 under development.	industrialinfo.com, Cost $ 380.00	Canada, United States	Map - includes graphs of capital and maintenance expenses
DS200812-0526 2008	Johnston, S.T.	The Cordilleran ribbon continent of North America.	Annual Review of Earth and Planetary Sciences, Vol. 36, May, pp. 495-530.	United States, Canada	Tectonics
DS200812-0677 2008	Liu, L., Spasojevi, S., Gurnis, M.	Reconstructing Farallon plate subduction beneath North America back to the late Cretaceous.	Science, Vol. 322, 5903, Nov. 7, pp. 934-937.	United States, Canada	Subduction
DS200812-0690 2007	Lupulescu, M.V., Bailey, D.G., Minarik, W.G.	Mineral and whole rock chemistry of kimberlite like rocks from New York.	Geological Society of America Annual Meeting 2007, Denver Oct. 28, 1p. Abstract	United States, New York	Dykes - petrology
DS200812-0697 2008	MacLeans	A shiny piece of hope. Birks sells diamonds and a little peace of mind.	Macleans Magazine, No. 24, June 23, p. 38.	Canada, United States	News item - retail
DS200812-0729 2007	McCandless, T.	Kimberlites and other primary host rocks for diamonds in North America.	Abstract 1p., 1p.	Canada, United States	Geochronology
DS200812-0744 2007	Mickus, K.	Precambrian blocks and orogen boundaries in the north central United States determined from gravity and magnetic data.	Geological Society of America, Memoir Framework of continental crust, No. 200, pp. 327-340.	United States	Geophysics - magnetics
DS200812-0750 2008	Mirnejad, H., Bell, K.	Geochemistry of crustal xenoliths from the Hatcher Mesa lamproite, Wyoming, USA: insights into the composition of the deep crust and upper mantle beneath the Wyoming craton.	Canadian Mineralogist, Vol. 46, 3, pp. 583-596.	United States, Wyoming, Colorado Plateau	Lamproite, craton
DS200812-0772 2008	Moucha, R., Forte, A.M., Rowley, D.B., Mitrovica, J.X., Simmons, N.A., Grand, S.P.	Mantle convection and the recent evolution of the Colorado Plateau and the Rio Grande Rift valley.	Geology, Vol. 36, 6, pp. 439-442.	United States, Colorado Plateau	Convection
DS200812-0804 2008	Nowell, G.M., Pearson, D.G., Irving, A.J.	Lu Hf and Re Os isotope studies of lamproite genesis.	9IKC.com, 3p. extended abstract	United States, Australia, Canada	Lamproite - geochronology
DS200812-0891 2008	Petrudhin, E.I., Bazarov, L.Sh., Gordeeva, V.I., Sharygin, V.V.	Crystallization conditions of lamproitic magmas from Zirkel Mesa ( Leucite Hills, USA): dat a on melting experiments.	9IKC.com, 3p. extended abstract	United States, Wyoming, Colorado Plateau	Lamproite
DS200812-0930 2008	Quigley, P.O.	Michigan kimberlites revisited: new mineral, chemical and petrographic analyses.	International Lake Superior Geology Institute, 1p. abstract only quiq0026 @umn.edu	United States, Michigan	Brief overview
DS200812-0932 2008	Rakovan, J.	Kimberlite - one of the best preserved dikes - and possible the first found - is currently located in a parking lot on Green Street in downtown Syracuse, N.Y.	Rocks and Minerals, Vol. 83, May-June, p. 83-84.	United States, New York	History
DC200812-3290 2007	Renaissance Diamonds Inc.	Earth friendly Renaissance Diamonds Inc. to support Earth Share.	Renaissance Diamonds Inc., Dec. 20, 1p.	United States, Florida	News item - press release
DC200812-3343 2008	Shear Minerals Ltd.	Shear Minerals announces road accessible drill ready targets at Crystal diamond project, Michigan.	Shear Minerals Ltd., July 17, 3p.	United States, Michigan	News item - press release
DS200812-1072 2008	Sine, C.R., Wilson, D., Gao, W., Grand, S.P., Aster, R., Ni, J., Baldridge, W.S.	Mantle structure beneath the western edge of the Colorado Plateau.	Geophysical Research Letters, Vol. 35, 10, May 28, L10303.	United States, Colorado Plateau	Tectonics
DS200812-1163 2008	Thatcher, W., Politz, F.F.	Temporal evolution of continental lithospheric strength in actively deforming regions.	GSA Today, Vol. 18, 4, April pp. 4-11.	United States	Tectonics
DM200812-3459 2008	TransFair USA	The Tiffany & Co., foundation provides funding for TransFair to explore feasibility of fair trade certified (TM) diamonds.	TransFair USA, Jan. 10, 1p.	United States	News item - press release
DS200812-1193 2008	US Geological Survey	Mineral commodity summaries January 2008 industrial diamond.	U.S. Geological Survey, January 2p. pp. 56-57.	United States	Industrial diamond
DS200812-1240 2008	Wang, X., Ni, J.F., Aster, R., Sandovi, E., Wilson, D., Sine, C., Grand, S.P., Baldridge, W.S.	Shear wave splitting and mantle flow beneath the Colorado Plateau and its boundary with the Great Basin.	Bulletin of Seismological Society of America, Vol. 98, 5, pp. 2526-2532.	United States, Colorado Plateau	Geophysics - seismics
DS200812-1250 2008	Wernicke, B., Davis, J.L., Niemi, N.A., Luffi, P., Bisnath, S.	Active megadetachment beneath the Western United States.	Journal of Geophysical Research, Vol. 113, B11409.	United States, Colorado Plateau	Subduction
DS200812-1275 2008	Wylie, D.	Comet theory proof found... blast over Canada?	National Post, July 7, p. A6.	Canada, United States, Ohio	News item - comets and diamonds
DS200812-1294 2008	Yang, Y., Forsyth, D.W.	Attenuation in the upper mantle beneath southern California: physical state of the lithosphere and asenthosphere.	Journal of Geophysical Research, Vol. 113, B03308.	United States, California	Tectonics
DS200812-1325 2008	Zheng-Xue, A.L., Lee, C-T.A., Peslier, A.H., Lenardic, A., Mackwell, S.J.	Water contents in mantle xenoliths from the Colorado Plateau and vicinity: implications for mantle rheology and hydration induced thinning of continental lithosph.	Journal of Geophysical Research, Vol. 113. B09210	United States, Colorado Plateau	Peridotite
DS200912-0045 2009	Bell, D.R., Hervig, R.L., Buseck, P.R., Aulbach, S.	Lithium isotope analysis of olivine by SIMS: calibration of a matrix effect and application to magmatic phenocrysts.	Chemical geology, Vol. 258, 1-2, Jan. pp. 5-16.	Africa, South Africa, Tanzania, United States	Phenocrysts
DS200912-0050 2009	Bensen, G.D., Ritzwoller, M.H., Yang, Y.	A 3 D shear velocity model of the crust and uppermost mantle beneath the United States from ambient seismic noise.	Geophysical Journal International, Vol. 177, 3, pp. 1177-1196.	United States	Geophysics - seismics
DS200912-0117 2009	Clowes, R.M.	The lithoprobe: trans-continental lithospheric cross section: imaging the internal structure of North America.	GAC/MAC/AGU Meeting held May 23-27 Toronto, Abstract only	Canada, United States	Geophysics - seismics
DC200912-2340 2009	CMKM Diamonds Inc.	CMKM diamond fraud case yields $ 55 million judgement.	Review Journal.com, June 27, 2p.	United States, Canada	News item - CMKM
DM200912-1054 2009	Coloradoan.com	Group ( North American Minerals Group) delays diamond exploration project close to Red Feather Lakes. George Creek.	coloradoan.com, July 8, 1p.	United States, Colorado Plateau	News item - North American Minerals Group
DS200912-0141 2009	Currie, C.A., Beaumont, C.	Are diamond nearing Cretaceous kimberlites related to shallow angle subduction beneath western North America?	GAC/MAC/AGU Meeting held May 23-27 Toronto, Abstract only	Canada, United States	Magmatism
DC200912-2345 2009	Delta Mining and Exploration Corporation	Corporate update .... different course of action... no diamond exploration.	Delta Mining and Exploration Corporation, April 3, 1p.	United States, Montana	News item - press release
DC200912-2346 2009	Delta Mining and Exploration Corporation	Secures financing. $ 1,000,000.	Delta Mining and Exploration Corporation, July 7, 1/4p.	United States, Montana	News item - press release
DS200912-0165 2009	Delta News	Alabama man finds 5.75 carat gem at Arkansas park. Arabian Knight diamond. Crater of Diamonds	Delta News, April 28, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM200912-1516 2009	Diamonds.net	Raw power ... the sculptural beauty of raw diamonds inspires the designs of Todd Reed.	Diamonds.net, March 1, 1p.	United States, Colorado Plateau	News item - jewels
DM200912-1539 2009	Diamonds.net	Lazare Kaplan warned of delisting risk. NYSE	Diamonds.net, Sept. 21, 1/4p.	United States	News item - Lazare
DM200912-1687 2009	Diamonds.net	Buffet buys $ 240 M of Tiffany debt.	Diamonds.net, Feb. 15, 1/4p.	Global, United States	News item - Tiffany
DM200912-1734 2008	Diamonds.net	McEwen to leave Gemesis.	Diamonds.net, Dec. 8, 1/4p.	United States	News item - Gemesis
DM200912-1735 2008	Diamonds.net	JVC launches essential guide to U.S. trade in color diamonds.	Diamonds.net, Dec. 23, 1p.	United States	News item - guide colour
DC200912-2372 2009	DiamonEx Limited	Sale of majority interest in Diamonex Botswana Limited.	DiamonEx Limited, March 20, 4p.	Africa, Botswana, United States, Colorado	News item - press release
DM200912-1788 2009	DIB Online	U.S. Treasury Dept. and IRS holds loose diamond auction ( drug trafficers diamonds).	Diamond Intelligence Briefs, March 11, 1/4p.	United States	News item - legal
DM200912-1797 2008	DIB Online	Ohio Federal Judge jury issues verdict against Julius Klein Diamonds in 'missing pink diamond' case. Awards Stafford Jewellers with $ 6.9 million damages.	Diamond Intelligence Briefs, Nov. 26, 1p.	United States	News item - Stafford Jewelers
DS200912-0176 2009	Dixon, J.E., Claque, D.A., Cousens, B.	Carbonatite and silicate melt metasomatism of depleted mantle surrounding the Hawaiian plume: origin of rejuvenated stage lavas.	Goldschmidt Conference 2009, p. A295 Abstract.	United States, Hawaii	Melting
DS200912-0190 2009	Duke, G.I.	Black Hills - Alberta carbonatite - kimberlite linear trend: slab edge at depth?	Tectonophysics, Vol. 464, pp. 186-194.	Canada, Alberta, United States, Montana	Kimberlite
DS200912-0191 2008	Duke, G.I., Carlson, R.W., Eby, G.N.	Two distinct sets of magma sources in Cretaceous rocks from Magnet Cove, Prairie Creek, and other igneous centres of the Arkansas Alkaline Province, USA.	American Geological Union, Fall meeting Dec. 15-19, Eos Trans. Vol. 89, no. 53, meeting supplement, 1p. abstract	United States, Arkansas	Lamproite
DS200912-0192 2009	Dunn, D.P.	Arkansas crustal xenoliths: implications for basement rocks of the northern Gulf Coast, USA.	Lithosphere, Vol. 1, no. 1, pp. 60-64.	United States, Arkansas	Petrology
DS200912-0198 2009	Eby, G.N., Vasconcelos, P.	Geochronology of the Arkansas alkaline province of southeastern United States.	Journal of Geology, Vol. 117, Sept. pp. 615-626.	United States, Arkansas	Carbonatite, lamproites
DS200912-0209 2009	Facer, J., Downes, H., Beard, A.	In situ serpentinization and hydrous fluid metasomatism in spinel dunite xenoliths from the Bearpaw Mountains, Montana, USA.	Journal of Petrology, Vol. 50, 8, pp. 1443-1475.	United States, Montana	Metasomatism - not specific to diamonds
DS200912-0314 2008	Houran, J.	The Jewell Gem: rediscovery of a historic Arkansas diamond.	Rocks and Minerals, Vol. 83, 6, pp. 502-507.	United States, Arkansas	Diamonds notable
DM200912-1856 2009	Idex Online	Rio Tinto's winning champagne diamond jewelry designs on tour.	Idex Online, Nov. 6, 1p.	Australia, United States	News item - Argyle
DM200912-1874 2009	Idex Online	Low level of U.S. rough diamond trade in July.	Idex Online, Sept. 13, 1p.	United States	News item - diamond imports
DM200912-1893 2009	Idex Online	The savory trinity: taxes, wealth and diamonds.	Idex Online, Sept. 3, 3p.	Global, United States	News item - economics
DM200912-1898 2009	Idex Online	Playing with figures... US diamond business .... where we try to figure out whether the diamond business fares better than other sectors of the economy.	Idex Online, July 9, 4p.	United States	News item - economics
DM200912-1909 2009	Idex Online	Low level of U.S. rough diamond trade in July.	Idex Online, Sept. 13, 1p.	United States	News item - imports
DM200912-1920 2009	Idex Online	It ain't over 'til the Fat Lady sings. Missing pink diamond saga continuation.	Idex Online, May 17, 3p.	United States	News item - legal
DM200912-1949 2009	Infomine estore	Major producing mines in the Americas. MAP base metals, diamond, coal, oil sands.	infomine.com, approx. $ 35.00	Canada, United States	Map
DS200912-0346 2009	Journal of the Geological Society of India	Identification of nano diamonds in recent impact material.	Journal of the Geological Society of India, Vol. 73, no. 3, March, p. 445 ( 1/8p.)	United States, Canada	Meteorite - impacts
DS200912-0369 2009	Kerr, R.A.	Scoping out unseen forces shaping North America.	Science, Vol. 325, Sept. 25, pp. 1620-1621.	United States, Canada	Slabs, subduction, plumes
DS200912-0474 2009	Martin, C.	How to sell. A tale of shady jewellers honesty.... a salesperson is a human advertisement. Review in the National Post July 18, by M. Medley.	Book Review, Publ. Farrar, Strauss and Giroux,	United States	Book review - just for interest!
DM200912-2091 2009	Mineweb	Court asked to uphold $ 295 million De Beers settlement to help jewelers survive.	Mineweb.net, June 11, 1/2p.	United States	News item - De Beers
DS200912-0527 2009	Murphy, J.B., Nance, R.D., Guterrez-Alfonso, G., Keppie, J.D.	Supercontinent rconstruction from recognition of leading continental edges.	Geology, Vol. 37, 7, July pp. 595-598.	United States, Canada	Subduction
DS200912-0647 2009	Roy, M., Jordan, T.H., Pederson, J.	Colorado Plateau magmatism and uplift by warming of heterogeneous lithosphere.	Nature, Vol. 459, June pp. 978-985.	United States, Colorado Plateau	Magmatism
DM200912-2209 2009	The Israeli Diamond Industry	LUKoil risks trial over diamond project.	israelidiamond.com, July 23, 1p.	United States, Colorado Plateau	News item - Archangel
DM200912-2256 2009	The Israeli Diamond Industry	Nano-diamonds help reveal ice age history. Santa Rosa Island. Mention of Hudson Bay area too.	israelidiamond.com, July 22, 1p.	United States, Canada, Ontario	News item - nano-diamonds
DS200912-0758 2009	Thurber, C., Zhang, H., Brocher, T., Langenheim, V.	Regional three dimensional seismic velocity model of the crust and uppermost mantle of northern California.	Journal of Geophysical Research, Vol. 114, B01304.	United States, California	Geophysics - seismics
DS200912-0760 2009	Tian, Y., Sigloch, K., Nolet, G.	Multiple frequency SH wave tomography of the western US upper mantle.	Geophysical Journal International, Vol. 178, bo. 3 Sept. oo, 1384-1402.	United States	Tomography - not specific to diamonds
DS200912-0835 2008	Yang, Y., Ritzwoller, M.H., Lin, F.C., Moshetti, M.P., Shapiro, N.M.	Structure of the upper crust and uppermost mantle beneath the western United States revealed by ambient noise and earthquake tomography.	Journal of Geophysical Research, Vol. 113, B12, B12310.	United States	Geophysics - seismics
DS201012-0032 2009	Bailey, D.G., Lupulescu, M.V.	Kimberlites of central New York State: magmatism related to Mesozoic extension and reactivation of lithospheric structures.	Geological Society of America Abstracts, 1/2p.	United States, New York	Dikes
DM201012-1058 2010	Creamers Mining Weekly	Court rejects De Beers class action settlement.	Creamers Mining Weekly, July 14, 1p.	Global, United States	News item - De Beers
DS201012-0150 2010	Dennis, K.J., Schrag, D.P.	Clumped isotope thermometry of carbonatites as an indicator of diagenetic alteration.	Geochimica et Cosmochimica Acta, Vol. 74, no. 14, pp. 4110-4122.	Canada, United States, Africa, South America, Brazil	Oka, Bearpaw, McClure,Magnet Cove
DS201012-0154 2010	Dewitt, E., Premo, W.R.,Klein, T.	Factors controlling generation and distribution of 1400- Ma plutonism in Colorado.	Geological Society of America Abstracts, 1p.	United States, Colorado Plateau	Carbonatite
DC201012-2416 2010	Diamex	Diamex setting up diamond manufacturing facility at 580 5th Ave. NY at the centre of New York's diamond district.	77diamonds.com, July 30, 1p.	United States	News item - Diamex
DM201012-1370 2010	Diamonds.net	CMKM shareholder files $ 250 m suit against SEC.	Diamonds.net, Feb. 23, 2p.	United States	News item - CMKM
DM201012-1395 2009	Diamonds.net	U.S. issues De Beers 'The Art of Precious Diamonds' trademark.	Diamonds.net, Dec. 23, 1/4p.	United States	News item - De Beers
DM201012-1410 2009	Diamonds.net	Museum to display Wittelsbach-Graf diamond in 2010.	Diamonds.net, Dec. 15, 1p.	United States	News item - diamonds notable
DM201012-1414 2010	Diamonds.net	DMIA confirms De Beers settlement rehearing begins in Feb.	Diamonds.net, Oct. 28, 1/4p.	United States	News item - DMIA
DM201012-1457 2010	Diamonds.net	Calculating the diamond district;s contribution.. economic impact study of 47th. Street New York.	Diamonds.net, July 21, 1/2p.	United States	News item - economics
DM201012-1707 2010	Diamonds.net	Diamond seized from Fifth Avenue jeweler. Taly	Diamonds.net, March 8, 1/4p.	United States	News item - Taly
DM201012-1708 2010	Diamonds.net	Taly Diamonds cooperates with customs investigation.	Diamonds.net, March 8, 1p.	United States	News item - Taly
DS201012-0187 2010	Eungard, D.W., Chesner, C.A.	A comparative study of lamproitic lava ponds in the Leucite Hills, Wy.	Geological Society of America Abstracts, 1/2p.	United States, Wyoming, Colorado Plateau	Lamproite
DS201012-0202 2010	Flowers, R.M.	The enigmatic rise of the Colorado Plateau.	Geology, Vol. 38, 7, pp. 671-672.	United States, Colorado Plateau	Magmatism
DS201012-0206 2010	Forte, A.M., Moucha, R., Simmons, N.A., Grand, S.P., Mitrovica, J.X.	Deep mantle contributions to the surface dynamics of the North American continent.	Tectonophysics, Vol.481, 1-4, pp. 3-15.	Canada, United States	Tectonics
DS201012-0219 2010	Gavida, G.E., Patton, J.A.	Petrography of the Dare mine Knob lamprophyre.	Geological Society of America Abstracts, 1/4p.	United States, Arkansas	Lamproite
DS201012-0262 2010	Halls, H.C., Lovette, A., Soderlund, U., Hamilton, M.A.	Paleomagnetism and U Pb geochronology from the western end of the Grenville dyke swarm and the question of true polar wander during the Ediacaran.	International Dyke Conference Held Feb. 6, India, 1p. Abstract	United States, Canada	Alkaline rocks, complexes
DS201012-0264 2010	Hammer, P.T.C., Clowes, R.M., Cook, F.A., Van der Velden, A.J., Vasudevan, K.	The lithoprobe trans continental lithospheric cross sections: imaging the internal structure of the North American continent.	Canadian Journal of Earth Sciences, Vol. 47, 5, pp. 821-957.	Canada, United States	Geophysics - seismics
DM201012-1890 2010	Idex Online	U.S. rough diamond imports rise in May.	Idex Online, July 15, 1p.	United States	News item - economics
DM201012-1891 2010	Idex Online	Flight of the U.S. rough. Where is it coming from?	Idex Online, Nov. 11, 1p.	United States	News item - economics
DM201012-1928 2010	Idex Online	State dept. ponders Zim diamond exports, meets U.S. diamond leadership.	Idex Online, Sept. 29, 1p.	Africa, Zimbabwe, United States	News item - KP legal
DM201012-1940 2010	Idex Online	A $ 4.5 million diamond loss under the table! Pink diamond tale.	Idex Online, April 8, 4p.	United States	News item - legal
DS201012-0387 2010	Kilian, T.M., Mitchell, R.N., Bleeker, W., Le Cheminant, A.N., Chamberlain, K.R., Evans, D.A.D.	Paleomagnetism of mafic dykes from the Wyoming craton, USA.	International Dyke Conference Held Feb. 6, India, 1p. Abstract	United States	Craton, connections
DS201012-0422 2010	Landreth, J.O., Dockweiler, P.J.	Mountain Pass carbonatite project.	International Workshop Geology of Rare Metals, held Nov9-10, Victoria BC, Open file 2010-10, extended abstract pp. 19-20.	United States, California	Carbonatite
DS201012-0514 2010	Moore, M., Chakhmouradian, A., Clark, J.	Polyphase rare earth mineralization of the Bear Lodge alkaline complex, Wyoming.	International Workshop Geology of Rare Metals, held Nov9-10, Victoria BC, Open file 2010-10, extended abstract pp. 27.	United States, Wyoming, Colorado Plateau	Carbonatite
DS201012-0515 2010	Moschetti, M.P., Rotzwoller, M.H., Lin, F-C., Yang, Y.	Crustal shear wave velocity structure of the western United States inferred from ambient seismic noise and earthquake data.	Journal of Geophysical Research, Vol. 115, B10 B10306.	United States	Geophysics - seismics
DM201012-2707 2010	Rapaport News	Rapaport diamond melee auction sells $ 4.69 million.	Rapaport Group, Sept. 7, 1p.	United States	News item - press release
DS201012-0620 2010	Reguir, E.P., Chakhmouradian, A.R., Halden, N.M., Yang, P.	Contrasting trends of trace element zoning in phlogopite from calcite carbonatites.	International Mineralogical Association meeting August Budapest, abstract p. 575.	United States, Colorado Plateau, Russia, Canada, Ontario, Quebec	Carbonatite
DS201012-0671 2010	Schmandt, B., Humphreys, E.	Complex subduction and small scale convection revealed by body wave tomography of the western United States upper mantle.	Earth and Planetary Science Letters, Vol. 297, 3-4, pp. 435-445.	United States	Tomography
DS201012-0672 2010	Schmandt, B., Humphreys, E.	Complex subduction and small scale convection revealed by body wave tomography of the western United States upper mantle.	Earth and Planetary Science Letters, Vol. 297, 3-4, pp. 435-445.	United States	Tomography
DS201012-0727 2010	Smith, D.	Antigorite peridotite, metaserpentinite, and other inclusions within diatremes on the Colorado Plateau, SW USA: implications for the mantle wedge during low angle	Journal of Petrology, Vol. 51, 6, pp. 1355-1379.	United States, Colorado Plateau	Subduction
DM201012-2250 2010	The Israeli Diamond Industry	Man finds 2.44 carat diamond at Arkansas Diamonds Park.	israelidiamond.co.il, Nov. 22, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201012-2295 2010	The Israeli Diamond Industry	New stringent air cargo shipping legislation in the U.S. could impact diamond dealers.	israelidiamond.co.il, July 26, 2p.	United States	News item - legal
DM201012-2330 2009	USA Today	Famed blue diamonds to share exhibit. Wittelsbach-Graff and Hope. at Smithsonian.	USA Today., Dec. 17, 1/8p/	United States	News item - diamonds notable
DS201012-0812 2010	Van Wijk, J.W., Baldridge, W.S., Van Hunen, J., Goes, S., Aster, R., Coblentz, D.D., Grand, S.P., Ni, J.	Small scale convection at the edge of the Colorado Plateau: implications for topography, magmatism, and evolution of Proterozoic lithosphere.	Geology, Vol. 38, 7, pp. 611-614.	United States, Colorado Plateau	Magmatism
DS201012-0869 2010	Xue, M., Allen, R.M.	Mantle structure beneath the western United States and its implications for convection processes.	Journal of Geophysical Research, Vol. 115, B07303.	United States	Tectonics
DS201012-0882 2010	Yuan, H., Romanowicz, B.	Lithospheric layering in the North American craton.	Nature, Vol. 466, August 26, pp. 1063-1068.	United States	Geophysics
DM201112-1211 2011	AllAfrica	Zimbabwe: U.S. in bid to block diamond sales.	AllAfrica.com, June 30, 1p.	Africa, Zimbabwe, United States	News item - KP
DS201112-0035 2011	Ashchepkov, I.V., Downes, H., Vladykin, N.V., Mitchell, R., Nigmatulina, E., Palessky, S.V.	Reconstruction of mantle sequences beneath the Wyoming craton using xenocrysts from Sloan and Kelsey Lake -1 kimberlite pipes, northern Colorado.	Deep Seated Magmatism, its sources and plumes, Ed. Vladykin, N.V., pp. 213-233.	United States, Colorado Plateau	Pyrope compositions -geothermobarometry
DS201112-0083 2011	Beranek, L.P., Mortensen, J.K.	The timing and provenance record of the Late Permian Klondike Orogeny in northwestern Canada and arc continent collision along western North America.	Tectonics, Vol. 30, 5, TC5017.	United States, Canada	Accretion
DS201112-0090 2011	Blackburn, T., Bowring, S., Perron, T., Mahan, K., Dudas, F.	A long term record of continental lithosphere exhumation via U-Pb thermochronology of the lower crust.	Goldschmidt Conference 2011, abstract p.532.	United States, Montana	Craton, keels
DS201112-0092 2011	Bleeker, W.	The Slave Craton of North America: an overview.	Geological Society of America, Annual Meeting, Minneapolis, Oct. 9-12, abstract	Canada, United States	Geochronology, petrology
DS201112-0134 2011	Callegaro, S., Marzoli, A., Bertrand, H., Reisberg, L., Chiaradia, M., Beelieni, G.	Geochemistry of eastern North American CAMP diabase dykes.	Goldschmidt Conference 2011, abstract p.614.	United States, Appalachia	Central Atlantic Province .... basaltic
DM201112-2720 2011	Coloradoan.com	Patriot Diamonds to give mining in Larimer County a new spark.	coloradoan.com, July 31, 1p.	United States, Colorado Plateau	News item - Patriot Diamonds
DS201112-0208 2011	Coopersmith, H.	The making of a diamond mine - why everyone cannot have one.	GIA International Symposium 2011, Gems & Gemology summer issue abs. p. 108.	United States, Colorado Plateau	Economics
DM201112-1508 2011	Creamers Mining Weekly	Miners say they support new SEC rules. Disclosure of payments to foreign governments.	Creamers Mining Weekly, March 23, 1p.	United States	News item - SEC
DM201112-1509 2011	Creamers Mining Weekly	SEC delays adoption of conflict minerals rules.	Creamers Mining Weekly, April 13, 1/4p.	United States	News item - SEC
DS201112-0223 2011	Crow, R., Karlstrom, K., Asmerom, Y., Schmandt, B., Polyak, V., DuFrane, S.A.	Shrinking of the Colorado Plateau via lithospheric mantle erosion: evidence from Nd and Sr isotopes and geochronology of Neogene basalts.	Geology, Vol. 39, 1, pp. 27-30.	United States, Colorado Plateau	Geochronology
DS201112-0229 2011	Currie, C.A., Beaumont, C.	Are diamond bearing Cretaceous kimberlites related to low-angle subduction beneath western North America?	Earth and Planetary Science Letters, Vol. 303, 1-2, pp. 59-70.	United States, Wyoming, Colorado Plateau, Canada, Northwest Territories	Subduction - Laramide Orogeny
DS201112-0262 2011	Delpit, S.	Alkaline ultramafic diatremes of the Missouri River Breaks area, Montana.	IUGG Held July 6, Abstract	United States, Montana	Emplacement model
DM201112-1544 2011	Diamond News	De Beers diamond class action settlement order expected in 6-10 months.	diamondnews.com, March 2, 1/8p.	United States	News item - De Beers
DM201112-1650 2010	Diamonds.net	De Beers shifts focus to Forevermark in U.S.	Diamonds.net, Dec. 20, 1/4p.	United States	News item - De Beers
DM201112-1672 2011	Diamonds.net	U.S. Marshals to auction 43.51 ct fancy yellow diamond.	Diamonds.net, August 9, 1/4p.	United States	News item - diamond notable
DM201112-1730 2011	Diamonds.net	Element Six Ventures opens office in Silicon Valley.	Diamonds.net, Oct. 10, 1/2p.	United States	News item - Element Six
DM201112-1806 2011	Diamonds.net	Kimberley Process: joint statement from 2012 incoming chair, vice chair.	Diamonds.net, Nov. 7, 1p.	United States, Africa, South Africa	News item - KP
DM201112-1812 2011	Diamonds.net	U.S. to chair Kimberley Process in 2012.	Diamonds.net, Nov. 3, 1/8p.	United States	News item - KP
DS201112-0339 2011	Funk, S.P., Luth, R.W.	An experimental study of minettes and associated mica-clinopyroxenite xenoliths from the Milk River area, southern Alberta Canada.	Goldschmidt Conference 2011, abstract p.875.	Canada, Alberta, United States, Wyoming	Similarities to Madupitic lamproites Leucite Hills
DS201112-0351 2011	Gems & Gemology	Gemesis releases CVD grown synthetic diamonds. (market)	G & G Brief, May 3, 1/2p.	United States	News item - Gemesis
DS201112-0359 2011	Geological Association of Canada	Mountain Pass post meeting field trip at the Ottawa 2011 conference.	GAC-MAC Annual Meeting May,	United States, California	Carbonatite, field trip
DS201112-0388 2011	Griffin, W.L., Begg, G.C., Dunn, D., O'Reilly, S.Y., Natapov, L.M., Karlstrom, K.	Archean lithospheric mantle beneath Arkansas: continental growth by microcontinent accretion.	Geological Society of America Bulletin, Vol. 123, 9-10, pp. 1763-1775.	United States, Arkansas	Prairie Creek lamproites
DS201112-0389 2011	Griffin, W.L., Begg, G.C., Dunn, D., O'Reilly, S.Y., Natapov, L.M., Karlstrom, K.	Archean lithospheric mantle beneath Arkansas: continental growth by microcontinent accretion.	Geological Society of America Bulletin, Vol. 123, 9/10 pp. 1763-1775.	United States, Arkansas	Prairie Creek lamproites
DS201112-0416 2011	Harvey, J., Dale, C.W., Gannoun, A., Burton, K.W.	Osmium mass balance in peridotite and the effects of mantle derived sulphides on basalt petrogenesis.	Geochimica et Cosmochimica Acta, Vol. 75, 9, pp. 5574-5596.	United States, New Mexico, Colorado Plateau	Kilbourne
DS201112-0452 2011	Hough, S.E., Page, M.	Toward a consistent model for strain accrual and release for the New Madrid Seismic Zone, central United States.	Journal of Geophysical Research, Vol. 116, B 3 B03311	United States	Geophysics - seismics
DM201112-2011 2011	Idex Online	Unusually large rough diamond shipments from India to the U.S. in April.	Idex Online, June 12, 1/2p.	United States, India	Geophysics - economics
DM201112-2060 2011	Idex Online	Fancy intense, yellow 43.51 carat diamond fetches almost $ 3 m.	Idex Online, Sept. 8, 1/4p.	United States	News item - diamond notable
DM201112-2094 2010	Idex Online	96.2 % of U.S. rough diamond imports were exported in October.	Idex Online, Dec. 14, 1/4p.	United States	News item - economics
DM201112-2095 2011	Idex Online	Buffett behind Borsheim's counter, says diamond ring 'a good investment'.	Idex Online, May 2, 1/2p.	United States	News item - economics
DM201112-2104 2010	Idex Online	Gemesis goes white, to market directly to consumers.	Idex Online, Nov. 30, 1p.	United States	News item - Gemesis
DM201112-2119 2011	Idex Online	U.S. net rough diamond imports $ 11 million in July.	Idex Online, Sept. 15, 1/4p.	United States	News item - imports
DM201112-2122 2011	Idex Online	U.S. serves as transit center for rough diamonds.	Idex Online, Nov. 16, 1p.	United States	News item - imports
DM201112-2136 2011	Idex Online	U.S. rough diamond traders to submit KP reports by April 1. KP	Idex Online, March 17, 1/4p.	United States	News item - KP
DM201112-2137 2011	Idex Online	The about-face....Brooks-Rubin US State Dept. official representing the US in the KP.... apologized for 'some mistakes' that were made by the USA.	Idex Online, June 9, 2p.	United States	News item - KP
DM201112-2138 2011	Idex Online	Confidence and respect on the road to change. U.S. - what oversight for rough and polished?	Idex Online, Nov. 24, 2p.	United States	News item - KP
DM201112-2154 2011	Idex Online	US legislators repeal burdensome reporting requirement. ( IRS Form 1099)	Idex Online, April 6, 1p.	United States	News item - legal
DS201112-0480 2011	JCKonline	Update on the De Beers class action settlement.	JCKOnline.com, Sept. 9, 2p.	United States	News item - De Beers
DS201112-0570 2011	Lawrence, J.F., Prieto, G.A.	Attenuation tomography of the western United States from ambient seismic noise.	Journal of Geophysical Research, Vol. 116, B6, B06302.	United States	Geophysics - seismic
DS201112-0580 2011	Lekic, V., French, S.W., Fischer, K.M.	Lithospheric thinning beneath rifted regions of southern California.	Science, Vol. 334, 6057, pp. 783-787.	United States, California	Tectonics
DS201112-0588 2011	Levy, F., Jaupart, C.	Temperature and rheological properties of the mantle beneath the North American craton from an analysis of heat flux and seismic data.	Journal of Geophysical Research, Vol. 116, B01408, 25p.	Canada, United States	Craton, geothermometry
DM201112-2271 2011	London Mining Journal	Rough diamond... bizarre character Dennis van Kerrebroeck ( charge of diamond theft 68 ct stone ).	London Mining Journal, April 4, pp. 12-13.	Africa, South Africa, United States, New York	News item - legal
DS201112-0615 2010	Long, K.R., Van Gosen, B.S., Foley, N.K., Cordier, D.	The principal rare earth elements deposits of the United States - a summary of domestic deposits and a global perspective.	U.S. Geological Survey,	United States	REE
DM201112-2369 2011	Mining.com	De Beers exec: best six months since going private, strong US growth surprises.	Mining.com, July 26, 1/2p.	United States	News item - De Beers
DM201112-2383 2011	Mining.com	De Beers sets up synthetic diamond VC office in Silicon Valley.	Mining.com, Oct. 10, 2p.	United States	News item - Element Six
DS201112-0700 2010	Mooney, W.D., Kaban, M.K.	The North American upper mantle: density, composition, and evolution.	Journal of Geophysical Research, Vol. 115, B12424, (24p.)	Mantle, Canada, United States	Geophysics - seismics, gravity
DS201112-0703 2011	Msnbc.msn	Dog eats $ 10,000 worth of diamonds.... Guard dog named Honey Bun ate diamonds left on desk near dog treats..... recovered.	Msnbc.msn, August 25, 1p.	United States	News item - humour
DS201112-0750 2011	Obrebski, M., Allen, R.M., Pollitz, F., Hung, S-H.	Lithosphere asthenosphere interaction beneath the western United States from the joint inversion of body-wave traveltimes and surface wave phase veolocities.	Geophysical Journal International, March 25, In press available	United States	Geophysics - seismics
DS201112-0780 2011	Perkins, D., Anthony, E.Y.	The evolution of spinel lherzolite xenoliths and the nature of the mantle at Kilbourne Hole, New Mexico.	Contributions to Mineralogy and Petrology, Vol. 162, 6,pp.1139-1157.	United States, New Mexico, Colorado Plateau	Xenoliths
DM201112-2520 2011	Petroleum News	Fortune hunt Alaska: solving the Alaska diamond enigma... new geological models speculate on potential source, Tintin fault aids, complicates search.	petroleumnews.com, Vol. 16, 19, 2p.	United States, Alaska	Diamond genesis models
DS201112-0822 2011	Prejeant, K., Perez, M., White, J.C., Ren, M.	Geology of the Elliot County kimberlite, Kentucky.	Geological Society of America, Annual Meeting, Minneapolis, Oct. 9-12, abstract	United States, Kentucky	Kimberlite petrology
DS201112-0823 2011	Prejeant-Dickerson, K., Perez, M., White, J.C., Lierman, R.T., Ren, M.	Mineral geochemistry of the Elliot County kimberlite, Kentucky.	Geological Society of America, Annual Meeting, Minneapolis, Oct. 9-12, abstract	United States, Kentucky	Kimberlite dikes
DS201112-0854 2011	Reid, M.R., Bouchet, R.A., Blichert-Toft, J.	Melting conditions associated with the Colorado Plateau, USA.	Goldschmidt Conference 2011, abstract p.1704.	United States, Colorado Plateau	Thermobarometry
DS201112-0997 2011	Steck, L.K., Behnaud, M.L., Phillips, S., Stead, R.	Tomography of crustal P and S travel times across the western United States.	Journal of Geophysical Research, Vol. 116, no. B 11, B11304.	United States	Geophysics - seismics
DS201112-1002 2011	Stempniewicz, V.A., Johnson, E.A.	The Archean of North America: the core of a continent.	Geological Society of America, Annual Meeting, Minneapolis, Oct. 9-12, abstract	United States, Virginia	Mantle - water content
DS201112-1019 2011	Sundvall, R., Stalder, R.	Water in upper mantle pyroxene megacrysts and xenocrysts: a survey study.	American Mineralogist, Vol. 96, 8-9, pp. 1215-1227.	Africa, Lesotho, United States, Colorado	Mineral chemistry
DM201112-2568 2011	The Israeli Diamond Industry	Finding diamonds - wish you were here.... Crater of Diamonds.	israelidiamond.co.il, Feb 7, 1p.	United States, Arkansas	News item - Crater of Diamonds
DM201112-2569 2011	The Israeli Diamond Industry	8.66 carat white diamond found at Crater of Diamonds State park.	israelidiamond.co.il, April 24, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DM201112-2570 2011	The Israeli Diamond Industry	2.44 carat diamond discovered at Arkansas Crate of Diamonds State Park. Named Silver Moon.	israelidiamond.co.il, March 23, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201112-2626 2011	The Israeli Diamond Industry	US net rough diamond imports see 60.5% increase in August.	israelidiamond.co.il, Oct. 30, 1/4p.	United States	News item - imports
DM201112-2650 2011	The Israeli Diamond Industry	US cracks ring of diamond thieves.	israelidiamond.co.il, July 25, 1/4p.	United States	News item - legal
DS201112-1039 2011	Thompson, D.A., Helffich, G., Bastow, L.D., Kendall, J-M., Wookey, J., Eaton, D.W., Snyder, D.B.	Implications of a simple mantle transition zone beneath cratonic North America.	Earth and Planetary Science Letters, Vol. 312, pp. 28-36.	Canada, United States	Craton, convective flow
DS201112-1145 2010	Yuan, H., Romanowicz, B.	Depth dependent azimuthal anisotropy in the western US upper mantle.	Earth and Planetary Science Letters, Vol. 300, 3-4, pp. 385-394.	United States	Geophysics - seismics
DS201112-1146 2011	Yuan, H., Romanowicz, B., Fischer, K., Abt, D.	3-D shear wave radially and azimuthally anisotropic velocity model of the North American upper mantle.	Geophysical Journal International, in press Jan. 17	Canada, United States	Geophysics - seismics
DS201112-1155 2011	Zbrozek, M.C., Gonzales, D.A.	Insight into the volatile histories of magmas of the Navajo volcanic field using oxygen and carbon isotopes.	Geological Society of America, Annual Meeting, Minneapolis, Oct. 9-12, abstract	United States, New Mexico, Colorado Plateau	Carbonatite, Katungites, minettes
DC201201-2449 2011	Scio Diamond Technology Corporation	Scio Diamond recaps conference presentation ( predecessor Apollo.)	Scio Diamond Technology Corporation, Dec. 14, 1p.	United States	News item - press release
DM201203-1005 2012	Diamonds.net	GIA unveils digital diamond report.	Diamonds.net, Feb. 17, 1p.	United States	News item - GIA
DM201203-1045 2012	Idex Online	The secret diamond mine, revisited. ITC	Idex Online, Feb. 16, 2p.	United States	News item - ITC
DC201204-2486 2012	Gemesis Diamond Company	Gemesis first to market full line of colorless and rare fancy yellow color lab-created diamonds.	Gemesis Diamond Company, March 13, 2p.	United States, Florida	News item - press release
DC201204-2497 2012	Scio Diamond Technology Corporation	Scio Diamond echnology reports progress toward production and increased research and development lab grown diamonds	Scio Diamond Technology Corporation, March 1, 1p.	United States	News item - press release
DM201205-1258 2012	Coloradoan.com	Dream to mine 'patriot' diamonds in Larimer County now on pause.	Coloradoan.com, April 14, 1p.	United States, Colorado Plateau	News item - Patriot Diamonds
DM201205-1333 2012	Idex Online	Sotheby's offers more fancy colored diamonds.	Idex Online, April 12, 1/2p.	United States	News item - Sotheby
DM201205-1334 2012	Idex Online	Financial firm offers loans against inventory.	Idex Online, April 12, 1/2p.	United States	News item - OWL
DC201205-2523 2012	Scio Diamond Technology Corporation	Infrastructure comes to life - diamond reactors ready.	Scio Diamond Technology Corporation, April 24, 1p.	United States, South Carolina	News item - press release
DM201206-1421 2012	DIB Online	The mystery of two Gemesis companies under one hat.	Diamond Intelligence Briefs, Vol. 27, no. 709, May 21, 5p.	Global, United States	News item - History - Gemesis
DM201206-1465 2012	Idex Online	Is the De Beers class action suit nearing conclusion?	Idex Online, May 24, 1/4p.	United States	News item - De Beers
DM201206-1506 2012	The Diamond Empowerment Fund	Diamond empowerment fund announces gala salute to Botswana: "diamonds empower Africa".	The Diamond Empowerment Fund, May 23, 1p.	United States	News item - press release
DM201207-1543 2012	Diamonds.net	US allows Zimbabwe officials in for KP meeting.	Diamonds.net, June 4, 1/4p.	Africa, Zimbabwe, United States	News item - KP
DC201207-2586 2012	Sweetwater Resources Inc.	Announces a new director - gemological consultant.	Sweetwater Resources Inc., June 21, 1p.	United States	News item - press release
DM201207-1613 2012	The Israeli Diamond Industry	Diamond tech company looks to expand in U.S.	israelidiamond.co.il, May 31, 1/4p.	United States	News item - Sarin
DM201208-1751 2012	Reuters	De Beers settles class action suit. De Beers checks are in the mail.	Reuters, July 14, 1/2p.	United States	News item - De Beers
DC201208-2613 2012	Scio Diamond Technology Corporation	Scio Diamond - muli year/multi million dollar sales contract.	Scio Diamond Technology Corporation, July 24, 1p.	United States, South Carolina	News item - press release
DM201208-1778 2012	The Israeli Diamond Industry	Never say never fine jewellery trends in the U.S. market.	israelidiamond.co.il, July 12, 3p.	United States	News item - markets
DM201209-1841 2012	Diamonds.net	Customs opens comment period for amended rough import requirements.	Diamonds.net, August 16, 7p.	United States	News item - legal
DM201209-1850 2012	Diamonds.net	SEC announces conflict mineral rule pursuant to the Dodd-Frank Bill.	Diamonds.net, August 22, 1/2p.	United States	News item - legal
DM201209-1865 2012	Idex Online	Lab diamond maker reaches 1,000 carat milestone, ships to customers.	Idex Online, August 1, 1p.	United States	News item - Scio
DM201209-1900 2012	Miningmx	De Beers US strategy focuses on clients.	Miningmx.com, August 16, 1p.	United States	News item - De Beers
DM201209-1903 2012	National Post	De Beers eyes U.S. market after 60 year ban lifted.	National Post, August 16, 1p.	United States	News item - De Beers
DM201209-2753 2012	Patriarca, V.	Arkansas State Park luring diamond hunters.	News item, August 23, 1p.	United States, Arkansas	News item - Crater of Diamonds
DM201209-1934 2012	The Israeli Diamond Industry	New US rules hit mining companies. Dodd-Frank	israelidiamond.co.il, August 26, 1/4p.	United States	News item - legal
DM201210-1974 2012	Diamonds.net	Genesis Diamonds plans a fourth location.	Diamonds.net, Sept. 4, 1/2p.	United States	News item - Genesis
DM201210-2000 2012	Idex Online	Government supervision of polished diamonds? Maybe so….	Idex Online, Sept. 20, 1p.	Global, United States, Canada, China, India	News item - KP
DM201211-2126 2012	Mining.com	Wisconsin man finds a diamond in the mire. 1.2 carat in a well.	Mining.com, Oct. 16, 1/3p.	United States, Wisconsin	News item - panning
DM201211-2158 2012	Rough-Polished	American industry bodies developed new protocol to control diamond supplies.	rough-polished.com, Oct. 17, 1p.	United States	News item - Diamond Warranty Protocol
DS201212-0027 2012	Ashchepkov, Downes, H., Mitchell, R.H., Vladykin, N.V., Palessky, S.V.	Mantle lithosphere beneath Wyomng is based on Sloan and Kelsy Lake - 1 kimberlite xenocrysts.	10th. International Kimberlite Conference Held Bangalore India Feb. 6-11, Poster abstract	United States, Wyoming, Colorado Plateau	Deposit - Sloan, Kelsey Lake
DS201212-0047 2012	Bailey, D.G., Lupilescu, M.V.	Kimberlitic rocks of New York State: the Dewitt "kimberlite".	Hamilton College, New York State Museum, Field trip guide 16p.	United States, New York	History, mineralogy
DS201212-0049 2012	Bailey, I.W., Miller, M.S., Liu, K., Levander, A.	V(S) and density structure beneath the Colorado Plateau constrained by gravity anomalies and joint inversions of receiver function and phase velocity data.	Journal of Geophysical Research, Vol. 117, B2, B02313.	United States, Colorado Plateau	Geophysics - gravity
DS201212-0125 2012	Chen, C-W., Li, A.	Shear wave structure in the Grenville Province beneath the lower Great Lake region from Rayleigh wave tomography.	Journal of Geophysical Research, Vol. 117, B1, B01303	United States	Geophysics, seismics
DS201212-0287 2012	Harvey, J., Yoshikawa, M., Hammond, S.J., Burton, K.W.	Deciphering the trace element characteristics in Kilbourne Hole peridotite xenoliths: melt-rock interaction and metasomatism beneath the Rio Grande rift, SW USA.	Journal of Petrology, Vol. 53, 8, pp. 1709-1742.	United States	Xenoliths
DS201212-0293 2012	Henderson, C.M.B., Richardson, F.R., Charnock, J.M.	The Highwood Mountains potassic igneous province, Montana: mineral fractionation trends and magmatic processes revisited.	Mineralogical Magazine, Vol. 76, 4, pp. 1005-1051.	United States, Montana	Highwood Mountains
DS201212-0402 2012	Levander, A., Miller, M.S.	Evolutionary aspects of lithosphere discontinuity structure in the Western USA.	Geochemical, Geophysics, Geosystems: G3, Vol. 10, in press	United States	Tomography
DS201212-0429 2012	Maier, A.C., Cates, N.L., Trail, D., Mojzsis, S.J.	Geology, age and field relations of Hadean zircon bearing supracrustal rocks from Quad Creek, eastern Beartooth Mountains ( Montana and Wyoming) USA.	Chemical Geology, Vol. 312-313, pp. 47-57.	United States, Montana	Wyoming Craton, geochronology
DS201212-0443 2012	Mariano, A.N., Mariano, A.Jr.	Rare earth mining and exploration in North America.	Elements, Vol. 8, 5, Oct. pp. 369-376.	Canada, United States	Economics - overview of mode of occurrence, mineralogy, history of exploration
DM201212-2298 2012	Mineweb	Superstorm Sandy a huge worry for India diamond exporters.	Mineweb.com, Nov. 1, 1p.	United States, India	News item - economics
DS201212-0500 2012	Mueller, P.A., Wooden, J.L.	Trace element and Lu-Hf systematics in Hadean-Archean detrital zircons: implications for crustal evolution.	Journal of Geology, Vol. 120, 1, pp. 15-29.	United States, Wyoming, Colorado Plateau	Subduction
DM201212-2310 2012	National Post	Duchess of Windsor heart shaped yellow diamond in Estee Lauder's collection on the block.	National Post, Nov. 3, 1/4p.	United States	News item - diamond notable
DS201212-0581 2012	Reid, M.R., Boucher, R.A., Ichert-Toft, J., Levander, A., Liu, K., Miller, M.S., Ramos, F.C.	Melting under the Colorado Plateau, USA.	Geology, Vol. 40, 5, pp. 387-390.	United States, Colorado Plateau	Melting
DS201212-0587 2012	Roberts, G.G., White, N.J., Martin-Brandis, G.L., Crosby, A.G.	An uplift history of the Colorado Plateau and its surroundings from the inverse modeling of longitudinal river profiles.	Tectonics, Vol. 31, TC4022 26p.	United States, Canada	Geomorphology
DS201212-0608 2012	Rukhlov, A.S., Pawlowicz, J.G.	Eocene potassic magmatism of the Milk River area southern Alberta NTS 72E and Sweet Grass Hills, northern Montana: overview and new dat a on mineralogy, geochemistry, petrology and economic potential.	Alberta Geological Survey, Open file report 2012-01, 96p. Free pdf	Canada, Alberta, United States, Montana	Alkaline rocks, magmatism
DS201212-0611 2012	Rutter, N., Coronato, A.,Helmens, K., Rabassa, J., Zarate, M.	Glaciations in North and South America from the Miocene to the last glacial maximum.	Springer, Book ad	United States, Canada, South America	Geomorphology
DS201212-0692 2012	Sommer, H., Regenauer-Lieb, K., Gasharova, B., Jung, H.	The formation of volcanic centers at the Colorado Plateau as a result of the passage of aqueous fluid through the oceanic lithospher and the subcontinental mantle" new implications for the planetary water cycle in the western United States.	Journal of Geodynamics, Vol. 61, Oct. pp. 154-171.	United States, Colorado Plateau	Volcanism
DM201212-2408 2012	The Israeli Diamond Industry	U.S. still urging new conflict diamond definition.	israelidiamond.co.il, Nov. 5, 1/4p.	United States	News item - KP
DM201301-1058 2012	Idex Online	De Beers execs to make first U.S. official appearance at DMIA meeting.	Idex Online, Dec. 11, 1/2p.	United States	News item - De Beers
DM201301-1061 2012	Idex Online	Gemesis CEO steps down: Company says realigned for growth.	Idex Online, Dec. 20, 1/2p.	United States	News item - Gemesis
DM201302-1156 2013	DIB Online	Apparent obstruction of justice in Gemesis synthetics fraud investigation - the evidence disappeared.	DIB, No. 742, Jan. 17, 3p.	United States, Europe, Belgium	News item - Gemesis
DM201302-1241 2013	Rough-Polished	De Beers diamond execs shone at DMIA meeting.	rough-polished.com, Jan. 25, 1/4p.	United States	News item - DMIA
DM201303-3191 2013	Florida Business Observer	Company navigates rough road for sales. Gemesis	review.net, Jan. 31, 1p.	United States	News item - Gemesis
DM201303-1396 2013	The Israeil Diamond Industry	Element Six boosts synthetic diamond production.	israelidiamond.co.il, Feb. 5, 1/2p.	United States	News item - Element Six
DM201304-1433 2013	Diamonds.net	Hollywood rolls out the red carpet for Gemesis diamonds.	Diamonds.net, March 5, 1/2p.	United States	News item - Gemesis
DM201305-1601 2013	Diamonds.net	Lazare Kaplan wins appeal in patent case.	Diamonds.net, April 24, 1/8p.	United States	News item - Lazare Kaplan
DM201305-1604 2013	Diamonds.net	Gemesis presents world largest, whitest lab-created diamond. 1.29 carat.	Diamonds.net, April 23, 1/2p.	United States	News item - Gemesis
DM201305-1606 2013	Frost & Sullivan	MPCVD diamonds - challenging the next frontier for technology.	Frost & Sullivan, April 22, 1p.	United States	News item - press release
DM201305-1612 2013	Idex Online	2.10 carat uncovered at Crater of Diamonds Park.	Idex Online, April 9, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DM201305-1614 2013	Idex Online	An offshore account tutorial anyone?	Idex Online, April 11, 2p.	Global, United States	News item - taxes
DC201305-2948 2013	Scio Diamond Technology Corporation	Scio Diamond announces documentary and production status.	Scio Diamond Technology Corporation, April 18, 1p.	United States, South Carolina	News item - press release
DM201305-1715 2013	The Israeli Diamond Industry	Her 30th birthday present: finding a 2 carat diamond at Crater of Diamonds State Park.	israelidiamond.co.il, April 9, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DC201306-2957 2013	Centaurus Diamond Technologies Inc.	Centaurus Diamond Technologies unique cultured diamond process and patent. Magnatek Process	Centaurus Diamond Technologies Inc., May 9, 1p.	United States, Nevada	News item - press release
DM201306-1783 2013	Diamonds.net	Court dismisses Wynn diamond case.	Diamonds.net, May 24, 1/2p.	United States	News item - legal
DM201306-1801 2013	Idex Online	The Vegas promise…. Trade show and contradicting reports.	Idex Online, May 16, 1p.	United States	News item - retail sales
DM201306-1867 2013	The Israeli Diamond Industry	Diamond group responds to leadership critique. DMIA	israelidiamond.co.il, April 29, 1p.	United States	News item - DMIA
DM201307-1967 2013	Idex Online	Alrosa commits to holding tenders in New York.	Idex Online, June 2, 1/4p.	United States, Russia	News item - Alrosa
DM201308-2083 2013	Diamonds.net	Almod Diamonds' Miami facility applies for customs duty exemption.	Diamonds.net, July 8, 1/4p.	United States, Florida	News item - Almod
DM201308-2084 2013	Diamonds.net	Visitor finds 3 ct golden brown stone at Crater of Diamonds.	Diamonds.net, July 8, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DM201308-2111 2013	Idex Online	A former vice president of product development at Tiffany & Co. has been arrested and charged with stealing more than $ 1.3 million in diamond bracelets, earrings etc.	Idex Online, July 3, 1/2p.	United States, New York	News item - Tiffany
DM201308-2116 2013	Idex Online	Americans are spending less on diamond jewellery.	Idex Online, July 25, 1p.	United States	News item - jewelry
DM201308-2136 2013	Rough-Polished	JFK thieves miss $ 600 million worth of diamonds.	rough-polished.com, June 30, 1/4p.	United States, New York	News item - legal
DM201308-2147 2013	Rough-Polished	Gubelin Gem Lab schedules off-premises testing in New York.	rough-polished.com, July 4, 1/4p.	United States, New York	News item - Gubelin
DM201309-2318 2013	The Israeli Diamond Industry	Tax fraud charged in case of diamond 'front company'. CMKM	israelidiamond.co.il, August 4, 1/4p.	United States	News item - CMKM
DM201309-2321 2013	USA Today	Twelve year old unearths 5.16 carat diamond named it God's Glory Diamond ( honey brown colour) # 328 found this year 27th largest and 75,000 found to date since 1906.	USA Today, August 9, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201310-2356 2013	Diamonds.net	CMKM's transfer agent may be cleared. Lawyer responsible.	Diamonds.net, Sept. 11, 1/2p.	United States	News item - CMKM
DM201310-2469 2013	Rough-Polished	Alrosa to sign a contract with Signet Jewellers.	rough-polished.com, Sept. 25, 1/4p.	Russia, United States	News item - Alrosa
DM201310-2472 2013	Stockwatch	CMKM Edwards will finally be extradited to USA.	Stockwatch news , Sept. 20, 1p.	United States, Nevada	News item - CMKM
DM201311-2539 2013	Mining.com	Teen finds 3.85 carat teardrop shaped diamond at Arkansas. Crater of Diamonds … named the canary yellow diamond God's Jewel.	Mining.com, Oct. 22, 1p.	United States, Arkansas	News item - Crater of Diamonds
DS201312-0035 2013	Ashchepkov, I.V., Downes, H., Mitchell, R.H., Vladykin, N.V., Coopersmith, H., Palessky, S.V.	Wyoming craton mantle lithosphere: reconstructions based on xenocrysts from Sloan and Kelsey Lake kimberlites.	Proceedings of the 10th. International Kimberlite Conference, Vol. 1, Special Issue of the Journal of the Geological Society of India,, Vol. 1, pp. 13-27.	United States, Colorado Plateau	Deposit - Sloan, Kelsey Lake
DS201312-0067 2013	Bedrosian, P.A., Feucht, D.W.	Structure and tectonics of the northwestern United States from EarthSCope USArray magnetotelluric data.	Earth and Planetary Science Letters, Vol. 402, pp. 275-289.	United States	Geophysics - Magnetotelluric
DS201312-0068 2013	Bell, D.R.	Petrogenesis of the Navajo volcanic field: lessons from South African kimberlites.	Geological Society of America Abstracts, Vol. 45, 5, p. 2.	United States, Colorado Plateau	Megacrysts
DS201312-0083 2013	Blessington, M., Kettler, R., Verplanck, P., Farmer, G.L.	Niobium mineralization in a magnetite rich carbonatite, Elk Creek Nebraska, USA.	Goldschmidt 2013, Abstract	United States, Nebraska	Carbonatite
DS201312-0107 2013	Buckley, S.J., Kurz, T.H., Howell, J.A., Schneider, D.	Terrestrial lidar and hyper spectral dat a fusion products for geological outcrop analysis. NOT specific to diamonds ( shale and carbonates)	Computers & Geosciences, Vol. 54, pp. 249-258.	United States, Europe, Spain	Lidar - interest
DS201312-0230 2013	Dumond, G.,Thomas, W.A., Mickus, K.L., Keller, G.R.	Resolving geological and geophysical evidence for a reactivated Cambrian plate boundary beneath the Ouachita orogen: the Alabama- Oklahoma transform fault.	Geological Society of America, 47th Meeting South central April 4-5, 1/2p. Abstract	United States, Alabama	Lamproite
DS201312-0277 2013	Frederickson, A.	A seismic image of the lithosphere beneath the western Superior Province and the mid-continent rift.	GEM Diamond Workshop Feb. 21-22, Noted only	Canada, United States	Geophysics - seismics
DS201312-0278 2013	Frederiksen, A.W., Bollmann, T., Darbyshire, F., Van der Lee, S.	Modification of continental lithosphere by tectonic processes: a tomographic image of central North America.	Journal of Geophysical Research, 50060	Canada, United States	Tomography - Laurentia, Superior
DS201312-0297 2013	Gargan, C.R., Curtis, L.	A study of heavy minerals from Crater of Diamonds state park, Murfreesboro, Arkansas.	Geological Society of America Annual Meeting, Vol. 45, 7, p. 593 abstract	United States, Arkansas	Deposit - Crater of Diamonds
DS201312-0309 2013	Ghosh, A., Becker, T.W., Humphreys, E.D.	Dynamics of the North American continent.	Geophysical Journal International, Vol. 194, 2, pp. 651-669.	United States, Canada	Geodynamics
DS201312-0345 2013	Gulick, S.P.S., Christeson, G.L., Barton, P.J., Grieve, R.A.F., Morgan, J.V., Urrutia-Fucugauchi, J.	Geophysical characterization of the Chicxulub impact crater.	Reviews of Geophysics, Vol. 51, 1, pp. 31-52.	United States, Mexico	Meteorite
DS201312-0360 2013	Hansen, S.M., Dueker, K.G., Stachnik, J.C., Aster, R.C., Karlstrom, K.E.	A rootless rockies support and lithospheric structure of the Colorado Rocky Mountains inferred from CREST and TA seismic data.	Geochemistry, Geophysics, Geosystems: G3, Vol. 14, 8, pp. 2670-2695.	United States	Geophysics - seismics
DS201312-0376 2013	Helmberger, D., Chu, R., Leng, W., Gurnis, M.	Hidden hotspot track beneath eastern United States.	Goldschmidt 2013, Abstract	United States, Kentucky	Kimberlite
DS201312-0530 2013	Lefebvre, N.S., White, J.D.L.	Unbedded diatreme deposits reveal maar-diatreme forming eruptive processes: Standing Rocks West, Hopi Buttes, Navajo Nation, USA.	Bulletin of Volcanology, Vol. 75, pp. 739-	United States, Wyoming, Colorado Plateau	Diatreme
DS201312-0671 2013	Oskin, B.	Hotspot scorched midwest, leaving legacy of earthquakes, rare rocks ( kimberlites)	livescience.com, Sept. 15, 2p.	United States, Kansas, Kentucky	New Madrid Rift zone
DS201312-0716 2014	Pollitiz, F.F., Mooney, W.D.	Seismic structure of the central US crust and shallow upper mantle: uniqueness of the Reelfoot Rift.	Earth and Planetary Science Letters, Vol. 402, pp. 157-166.	United States	Geophysics - seismics
DM201312-2775 2013	Rough-Polished	U.S. Investments funds bought 45% of IPO carried out by Alrosa.	rough-polished.com, Nov. 13, 1/4p.	Russia, United States	News item - Alrosa
DM201312-2780 2013	Rough-Polished	U.S. to freeze revenue accruing from Marange diamond sales.	rough-polished.com, Nov. 14, 1/4p.	United States, Africa, Zimbabwe	News item - ZMDC
DS201312-0761 2013	Rukhlov, A.S., Blinova, A.I., Pawlowicz, J.G.	Geochemistry, mineralogy and petrology of the Eocene potassic magmatism from the Milk River area, southern Alberta and Sweet Grass Hills, northern Montana.	Chemical Geology, Vol. 353, pp. 280-302.	Canada, Alberta, United States, Montana	Milk River area
DS201312-1005 2013	Zartman, R.E., Kempton, P.D., Kempton, J.B., Paces, H.D., Williams, I.S., Dobosi, G.,Futa, K.	Lower crustal xenoliths from Jurassic kimberlite diatremes, Upper Michigan USA: evidence for Proterozoic orogenesis and plume magmatism in the lower crust of the southern Superior Province.	Journal of Petrology, Vol. 54, 3, pp. 575-608.	United States, Michigan	Deposit - Lake Ellen, S69, S10
DM201402-1283 2014	Diamonds.net	Leviev Group petitions court on behalf of Taly Diamonds.	Diamonds.net, Jan. 3, 1/4p.	United States	News item - Leviev
DM201402-1541 2014	Even-Zohar, C.	Two worlds apart: Yinren is from Mars and ADB from Venus. Naomi Avenue in Huston, US green cards for Chinese	Diamond Intelligence Briefs, No. 794, Jan. 15, 6p.	Global, China, United States	News item - Yinren
DM201402-1567 2014	Idex Memo	Worlds apart: Yinren and the Antwerp Diamond Bank. (Even-Zohar commentary)	Idex Online, Jan. 23, 3p.	United States, Europe, Belgium	News item - ADB
DM201403-1976 2014	Rough-Polished	De Beers sees diamond demand accelerating on U.S., Chin a sales.	rough-polished.com, Feb. 17, 1/4p.	United States, China	News item - De Beers
DM201404-2486 2014	The Israeli Diamond Industry	A trip he won't forget: tourist digs up 2.89 carat white diamond in Arkansas Crater of Diamonds. Named the stone Jax.	israelidiamond.co.il, March 12, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201405-2969 2014	The Israeli Diamond Industry	Crater state park continues to produce diamonds. 6.19 carat white diamond ( 15th largest) named The Limitless diamond. Previous yellow 3.85 carat found by Clymer sold for $ 20,000.	israelidiamond.co.il, April 17, 1/4p.	United States, Arkansas	News item - Crater of diamonds
DM201406-2085 2014	Rough-Polished	Crater state Park continues to produce diamonds.	rough-polished.com, April 29, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201406-2458 2014	Stockwatch	CMKM defendant Turino seeks release from jail.	Stockwatch News, May 13, 1p.	United States	News item - CMKM
DM201407-1584 2014	Idex Memo	US diamond jewelry sales, are they rising?	Idex Online, June 5, 2p.	United States	News item - jewelry
DM201407-1633 2014	Idex Online	Lab grown diamond company MiaDonna to open Oregon showroom.	Idex Online, June 5, 1p.	United States, Oregon	News item - MiaDonna
DM201407-2121 2014	Rough-Polished	Alrosa and DDC sign a memorandum of understanding… aimed to develop the diamond industries of Russia and USA.	rough-polished.com, June 3, 1/4p.	Russia, United States	News item - Alrosa, DDC
DM201407-2127 2014	Rough-Polished	GJEPC announces BDCs in USA, Canada and South America.	rough-polished.com, June 5, 1/4p.	United States, Canada, South America	News item - GJEPC
DM201407-2144 2014	Rough-Polished	U.S. polished imports + 19% in April.	rough-polished.com, June 16, 1/4p.	United States	News item - imports
DC201407-2886 2014	Scio Diamond Technology Corporation	Restructures senior management.	Scio Diamond Technology Corporation, June 20,1p.	United States, South Carolina	News item - press release
DM201407-2547 2014	Toronto Star	Film about legendary thief: Jewels were clearly the best friend of 'Diamond Doris'….. The life and crimes of Doris Payne.	Toronto Star, June 20, 1/4p.	United States	News item - history
DM201408-1416 2014	Diamonds.net	Judge sentences CMKM stock trader Glisson to four years in prison.	Diamonds.net, July 15, 1/4p.	United States	News item - CMKM
DC201408-2724 2014	Lab-Diamonds.com	Lab-Diamonds.com adds pure carbon, lab created diamonds to their collection. ( colorless)	Lab-Diamonds.com, June 27, 1p,	United States, Wisconsin	News item - press release
DM201408-2502 2014	The Israeli Diamond Industry	Hallelujah! It's raining diamonds in Alabama backyard. Rings tied to a balloon	israelidiamond.co.il, July 23, 1/4p.	United States, Alabama	News item - rings
DC201409-2636 2014	De Beers Group	The De Beers Group of Companies to run diamond re-selling insight programme.	De Beers Group , Aug. 19, 1p.	United States	News item - press release
DM201409-2241 2014	Rough-Polished	Diamond consumption: U.S. remains top dog, says Equity Communications.	rough-polished.com, Aug. 12, 1/4p.	United States	News item - economics
DM201409-2242 2014	Rough-Polished	The US doesn't want to ban Russian diamond imports.	rough-polished.com, Aug. 13, 1/4p.	United States, Russia	News item - legal
DM201409-2455 2014	Stockwatch	CMKM's Edwards pleads not guilty.	Stockwatch.com, Aug. 14, 2p.	United States	News item - CMKM
DM201409-2514 2014	The Israeli Diamond Industry	After the rain, park makes diamond dreams come true. 372 stones recovered in first 200 days of 2014. Aug. 11 two stones 1.63 yellow and 1.61 brown.	israelidiamond.co.il, Aug. 18, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201411-1490 2014	Diamonds.net	De Beers briefs NY banking community on diamond industry outlook.	Diamonds.net, Oct. 1, 1/4p.	United States	News item - De Beers
DM201411-2356 2014	Rough-Polished	US denies reports that it threatened Zim with sanctions over $ 3 billion deal with Russia.	rough-polished.com, Oct. 10, 1/4p.	United States, Russia	News item - economics
DM201411-2456 2014	Stockwatch	CMKM's Edwards seeking mental health assessment.	stockwatch.com, Oct. 7, 1p.	United States	News item - CMKM
DM201411-2457 2014	Stockwatch	CMKM's Edwards sent for mental competency evaluation.	Stockwatch.news, Oct. 16, 1p.	United States	News item - CMKM
DS201412-0015 2014	Armytage, R.M.G., Brandon, A.D., Peslier, A.H., Lapen, T.J.	Osmium isotope evidence for Early to Middle Proterozoic mantle lithosphere stabilization and concommitant production of juvenile crust in Dish Hill, CA peridotite xenoliths.	Geochimica et Cosmochimica Acta, Vol. 137, pp. 113-133.	United States, California	SCLM, subduction
DS201412-0128 2014	Chu, R., Helmberger, D.	Lithospheric waveguide beneath the Midwestern United States; massive low-velocity zone in the lower crust.	Geochemistry, Geophysics, Geosystems: G3, Vol. 15, 4, pp. 1348-1362.	United States	Geophysics - seismics
DS201412-0142 2012	Cook, F.A., Percival, J.A., Clowes, R.M.	Tectonic styles in Canada: lithoprobe perspectives on the evolution of the North American continent.	Tectonic styles in Canada: the lithoprobe perspective, eds. Percival, Cook, Clowes, Geological Survey of Canada, Special Paper, 49, pp. 489-	Canada, United States	Tectonics - lithoprobe
DS201412-0179 2014	Delpit, S., Ross, P-S., Hearn, B.C.	Deep bedded ultramafic diatremes in the Missouri River breaks volcanic field, Montana, USA: 1 km of syn-eruptive subsidence.	Bulletin of Volcanology, Vol. 76, p. 832-	United States, Montana	Missouri Breaks diatreme
DM201412-1529 2014	Diamonds.net	Sarine Loupe service center opens in New York.	Diamonds.net, Nov. 19, 1/4p.	United States, New York	News item - Sarine
DM201412-1532 2014	Diamonds.net	Blue diamond sets new auction record. From Mellon collection at Sotheby renamed Zoe Diamond	Diamonds.net, Nov. 21, 1/4p.	United States	News item - diamond notable
DS201412-0213 2014	Duke, G.I., Carlson, R.W., Frost, C.D., Hearn, B.C.Jr., Eby, G.N.	Continental scale linearity of kimberlite-carbonatite magmatism, mid-continent North America.	Earth and Planetary Science Letters, Vol. 403, pp. 157-163.	Canada, United States	Lineaments
DS201412-0249 2014	Foster, K., Dueker, K., Schmandt, B., Yuan, H.	A sharp cratonic lithosphere-asthenosphere boundary beneath the American Midwest and its relation to mantle flow.	Earth and Planetary Science Letters, Vol. 402, pp. 82-89.	United States, Colorado Plateau	Geophysics - seismics
DS201412-0255 2014	Friedman, S.A., Feinberg, J.M., Ferre, E.C., Demory, F., Martin-Hernandez, F., Condor, J.A., Rochette, P.	Craton vs rift uppermost mantle contributions to magnetic anomalies in the United States interior.	Tectonophysics, Tecto9071R.docx	United States, Montana, Colorado Plateau	Geophysics - magnetics
DS201412-0291 2014	Gifford, J.N., Mueller, P.A., Foster, D.A., Mogk, D.W.	Precambrian crustal evolution in the Great Falls Tectonic Zone: insights from xenoliths from the Montana alkali province.	Journal of Geology, Vol. 122, 5, pp. 531-548.	United States, Montana	Alkalic
DS201412-0369 2014	Hopper, E., Ford, H.A., Fischer, K.M., Lekic, V., Fouch, M.J.	The lithosphere-asthenosphere boundary and the tectonic and magmatic history of the northwestern United States.	Earth and Planetary Science Letters, Vol. 402, pp. 69-81.	United States	Geophysics - seismics
DM201412-1606 2014	Idex Memo	Rising optimism as U.S.market heads for possible record breaking year.	Idex Online, Nov. 13, 1p.	United States	News item - jewellery
DS201412-0464 2014	Klocking, M., White, N., Maclennan, J.	A magmatic probe of lithospheric thickness variations beneath western North America.	Volcanic and Magmatic Studies Group meeting, Poster Held Jan. 6-8. See minsoc website	United States, Canada	Magmatism
DS201412-0503 2014	Lekic, V., Fischer, K.M.	Contrasting lithospheric signatures across the western United States revealed by Sp receiver functions.	Earth and Planetary Science Letters, Vol. 402, pp. 90-98.	United States, Colorado Plateau	Geophysics - seismics
DS201412-0572 2014	Meqbel, N.M., Egbert, G.D., Wannamaker, P.E., Kelbert, A., Schultz, A.	Deep electrical resistivity structure of the northwestern US derived from 3-D inversion of USArray magnetotelluric data.	Earth and Planetary Science Letters, Vol. 402, pp. 290-304.	United States	Geophysics - magnetotellurics
DS201412-0601 2013	Mueller, P.A., Mogk, D.W., Henry, D.J., Wooden, J.L., Foster, D.A.	The plume to plate transition: Hadean and Archean crustal evolution in the northern Wyoming province, USA.	Dilek & Furnes eds. Evolution of Archean crust and early life. Springer Publication, pp. 23-54.	United States	Mantle plume
DS201412-0662 2014	Parker, E.H.Jr.	Crustal magnetism, tectonic inheritance, and continental rifting in the southeastern United States. ( Africa)	GSA Today, Vol. 24, no-4-5, pp. 4-9.	United States	Brunswik Magnetic Anomaly
DS201412-0701 2014	Pollitz, F.F., Mooney, W.D.	Seismic structure of the central US crust and shallow upper mantle: uniqueness of the Reelfoot Rift.	Earth and Planetary Science Letters, Vol. 402, pp. 157-166.	United States	Geophysics - seismics
DS201412-0732 2014	Reiter, M.	Heat flow dat a in the Four Corners area suggest Neogene crustal warming resulting from partial lithosphere replacement in the Colorado Plateau interior, southwest USA.	Geological Society of America Bulletin, Vol. 126, pp. 1084-1092.	United States, Colorado Plateau	Geothermometry
DS201412-0776 2014	Schaeffer, A.J., Lebedev, S.	Imaging the North American continent using waveform inversion of global and USArray data.	Earth and Planetary Science Letters, Vol. 402, pp. 26-41.	United States	Geophysics - seismics
DS201412-0784 2014	Schulze, D.J., Flemming, R.L., Shepherd, P.M., Helmstaedt, H.	Mantle derived guyanaite in a Cr-omphacite xenolith from Moses Rock diatreme, Utah.	American Mineralogist, Vol. 99, pp. 1277-1283.	United States, Utah	Moses Rock diatreme
DS201412-0874 2014	Spear, F.S., Thomas, J.B., Hallett, B.W.	Overstepping the garnet isograd: a comparison of QuiG barometry and thermodynamic modeling quartz in garnet isocrhon.	Contributions to Mineralogy and Petrology, Vol. 168, pp. 1059 -	United States, Vermont	Garnet ( not specfic to diamond)
DS201412-0908 2014	Swanson-Hysell, N.L., Burgess, S.D., Maloof, A.C., Bowring, S.A.	Magmatic activity and plate motion during the latent stage of Midcontinent Rift development.	Geology, Vol. 42, pp. 475-478.	United States	Structure - rifting
DS201412-0926 2014	Tesauro, M., Kaban, M.K., Mooney, W.D., Cloetingh, S.	NACr14: a 3D model for the crustal structure of the North American continent.	Tectonophysics, Vol. 631, pp. 65-86.	Canada, United States	Geophysics - seismics
DM201412-2535 2014	The Israeli Diamond Industry	Small diamonds found in meteorite that fell in Sierra Gold country. April 2012	israelidiamond.co.il, Nov. 11, 1/4p.	United States	News item - meteorite
DS201412-0947 2014	Verplank, P.L., Kettler, R.M., Blessington, M.J., Lowers, H.A., Koenig, A.E., Farmer, G.L.	Rare earth element and niobium enrichments in the Elk Creek carbonatite, USA.	30th. International Conference on Ore Potential of alkaline, kimberlite and carbonatite magmatism. Sept. 29-, http://alkaline2014.com	United States, Nebraska	Carbonatite
DS201412-0981 2014	Wirth, E.A., Long, M.D.	A contrast in anisotropy across mid-lithospheric discontinuities beneath the central United States - a relic of craton formation.	Geology, Vol. 42, 10, pp. 851-854.	United States	Geophysics - seismic
DS201412-1012 2014	Yuan, H., French, S., Cupillard, P., Romanowicz, B.	Lithospheric expression of geological units in central and eastern North America from full waveform tomography.	Earth and Planetary Science Letters, Vol. 402, pp. 176-186.	United States	Geophysics - seismics
DM201501-0476 2014	Even-Zohar, C.	Analyzing Indian dreams of duty free jewelry exports to the United States.	Diamond Intelligence Briefs ( Courtesy of Chaim), DIB 838, Nov. 19, pp. 8927-8930.	India, United States	News item - GSP program
DS201501-0023 2014	Nemeth, P.	Asteroid impacts on Earth make structurally bizarre diamonds. Diamond grains from the Canyon Diablo meterorite	Nature Communications, Nov. 20, 2p.	United States, Arizona	Lonsdaleite
DM201501-1337 2014	Stockwatch	CMKK's Turino loses detention appeal.	Stockwatch.com, Dec. 3, 1p.	United States	News item - CMKK
DS201502-0057 2014	Gifford, J.N., Mueller, P.A., Foster, D.A, Mogk, D.W.	Precambrian crustal evolution in the Great Falls Tectonic Zone: insights from xenoliths from the Montana Alkali province.	Journal of Geology, Vol. 122, Sept. pp. 531-548.	United States, Montana	Alkalic
DS201502-0081 2015	Moore, M., Chakhmouradian, A.R., Mariano, A.N., Sidhu, R.	Evolution of rare-earth mineralzation in the Bear Lodge carbonatite, Wyoming: mineralogical and isotopic evidence.	Ore Geology Reviews, Vol. 64, pp. 499-521.	United States, Wyoming, Colorado Plateau	Deposit - Bear Lodge
DM201502-1034 2014	Rough-Polished	U.S. online Christmas ecommerce spending + 15% to $ 48 billion.	rough-polished.com, Dec. 25, 1/4p.	Global, United States	News item - economics
DM201503-0591 2015	Diamonds.net	US says Edwards sane enough to stand trial in diamond fraud case.	Diamonds.net, Jan. 30, 1/4p.	United States	News item - CMKM
DM201503-1072 2015	Rough-Polished	Angola, U.S. pledge to enforce KP core principles.	rough-polished.com, Feb. 4, 1/4p.	Africa, Angola, United States	News item - KP
DM201503-1346 2015	The Israeli Diamond Industry	Louisiana man finds 2.01 carat diamond in Arkansas state park.	israelidiamond.co.il, Feb. 8, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DS201504-0192 2014	Delpit, S., Ross, P-S., Hearn, B.C.	Deep bedded ultramafic diatremes in the Missouri River Breaks volcanic field, Montana, USA.	Bulletin of Volcanology, Vol. 76, p. 832-	United States, Montana	Diatreme
DM201504-0610 2015	Diamonds.net	GIA & De Beers to speak on synthetic diamonds March 22. Panel discussion at GIA	Diamonds.net, Mar.3, 1/4p.	United States	News item - synthetics
DS201505-0254 2015	Ballmer, M.D., Conrad, C.P., Smith, E.I., Johnsen, R.	Intraplate volcanism at the edges of the Colorado Plateau sustained by a combination of triggered edge-driven convection and shear-driven upwelling.	Geochemistry, Geophysics, Geosystems: G3, Vol. 16, 2, pp. 366-379.	United States, Colorado Plateau	Convection
	Abstract: Although volcanism in the southwestern United States has been studied extensively, its origin remains controversial. Various mechanisms such as mantle plumes, upwelling in response to slab sinking, and small-scale convective processes have been proposed, but have not been evaluated within the context of rapidly shearing asthenosphere that is thought to underlie this region. Using geodynamic models that include this shear, we here explore spatiotemporal patterns of mantle melting and volcanism near the Colorado Plateau. We show that the presence of viscosity heterogeneity within an environment of asthenospheric shearing can give rise to decompression melting along the margins of the Colorado Plateau. Our models indicate that eastward shear flow can advect pockets of anomalously low viscosity toward the edges of thickened lithosphere beneath the plateau, where they can induce decompression melting in two ways. First, the arrival of the pockets critically changes the effective viscosity near the plateau to trigger small-scale edge-driven convection. Second, they can excite shear-driven upwelling (SDU), in which horizontal shear flow becomes redirected upward as it is focused within the low-viscosity pocket. We find that a combination of “triggered” edge-driven convection and SDU can explain volcanism along the margins of the Colorado Plateau, its encroachment toward the plateau's southwestern edge, and the association of volcanism with slow seismic anomalies in the asthenosphere. Geographic patterns of intraplate volcanism in regions of vigorous asthenospheric shearing may thus directly mirror viscosity heterogeneity of the sublithospheric mantle.
DC201505-1419 2015	Britannia Mining Inc.	Announces two key hires for its diamond division ( Commodities trading division)	Britannia Mining, Inc., Mar. 31, 1p.	United States	News item - press release
DM201505-0639 2015	Diamonds.net	GIA's Dreams of Diamonds exhibit comes to southern California. Seven of world's finest diamond houses to showcase exceptionally rare diamonds……	Diamonds.net, Apr. 2, 1/4p.	United States, California	News item - GIA exhibit
DS201505-0240 2015	Kalnins, L.M., Simons, F.J., Kirby, J.F., Wang, D.V., Olhede, S.C.	On the robustness of estimates of mechanical anisotropy in the continental lithosphere: a North American case study and global reanalysis.	Earth and Planetary Science Letters, Vol. 419, pp. 43-51.	United States, Canada	Tectonics
DS201506-0260 2015	Crater of Diamonds State Park	Park visitor from Arkansas finds 3.69 carat white, teardrop-shaped diamond yesterday ( April 23) at Arkansas Crater of Diamonds State Park. Hallelujah name	Crater of Diamonds State Park, Apr. 23, 2p.	United States, Arkansas	Crater of Diamonds
DM201506-1340 2015	Stockwatch	CMKM defendant Turino seeks freedom, again.	Stockwatch Diamonds & Specialty Minerals, May 21, 2p.	United States	News item - CMKM
DM201506-1341 2015	Stonechicky	Five yellow diamonds were registered last week at the Crater of Diamonds. Two weighed over a half carat each.	Stonechicky, Apr. 20, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201506-1351 2015	The Israeli Diamond Industry	5 yellow diamonds found at Arkansas Crater Park in a week. Historical coverage.	israelidiamond.co.il, Apr. 20, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DC201507-1686 2015	Scio Diamond Technology Corporation	Scio Diamond's lab grown fancy pink diamonds reach retail market USA.	Scio Diamond Technology Corporation, June 2, 1p.	United States	News item - press release
DM201508-0478 2015	CNN	Park visitor unearths 8.52 carat diamond in Arkansas. Esperanza Diamond	CNN, June 27, 1p.	United States, Arkansas	News item - Crater of Diamonds
DS201508-0356 2015	Harvey, J., Konig, S., Luguet, A.	The effects of melt depletion and metasomatism on highly siderophile and strongly chalcophile elements: S-Se-Te-Re-PGE systematics of peridotite xenoliths from Kilbourne Hole, New Mexico.	Geochimica et Cosmochimica Acta, Vol. 166, pp. 210-233.	United States, New Mexico, Colorado Plateau	Peridotite, xenoliths
DS201508-0376 2015	Schulze, D.J., Davis, D.W., Helmstaedt, H., Joy, B.	Timing of the Cenozoic " Great Hydration" event beneath the Colorado Plateau: Th-Pb dating of monazite in Navajo volcanic field metamorphic eclogite xenoliths.	Geology, Vol. 43, pp. 727-730.	United States, Colorado Plateau	Diatremes - Moses Rock, Mule's Ear, Garnet Ridge, Cane Valley, Red Mesa, Buell Park, Green Knobs
DM201509-0746 2015	Diamonds.net	Is diamond demand determined in Beijing and Washington?	Diamonds.net, Aug. 20, 1/4p.	United States, China	News item - demand
DM201509-0767 2015	Ehud Arye Laniado	New York diamond center.	ehudlaniado.com, Aug. 5, 4p.	United States	News item - history
DC201509-1481 2015	Elkedra Diamonds NL.	Canadian master diamond cutter Mike Botha to craft the Esperanza diamond in Arkansas.	Embee Diamonds, Aug. 27, 1/2p.	United States, Arkansas	News item - Embee
DS201509-0399 2015	Hongsresawat, S., Panning, M.P., Russo, R.M., Foster, D.A., Monteiller, V., Chevrot, S.	USArray shear wave splitting shows seismic anisotropy from both lithosphere and asthenosphere.	Geology, Vol. 43, 8, pp. 667-670.	United States	Seismic -anisotropy
	Abstract: North America provides an important test for assessing the coupling of large continents with heterogeneous Archean- to Cenozoic-aged lithospheric provinces to the mantle flow. We use the unprecedented spatial coverage of the USArray seismic network to obtain an extensive and consistent data set of shear wave splitting intensity measurements at 1436 stations. Overall, the measurements are consistent with simple shear deformation in the asthenosphere due to viscous coupling to the overriding lithosphere. The fast directions agree with the absolute plate motion direction with a mean difference of 2° with 27° standard deviation. There are, however, deviations from this simple pattern, including a band along the Rocky Mountain front, indicative of flow complication due to gradients in lithospheric thickness, and variations in amplitude through the central United States, which can be explained through varying contributions of lithospheric anisotropy. Thus, seismic anisotropy may be sourced in both the asthenosphere and lithosphere, and variations in splitting intensity are due to lithospheric anisotropy developed during deformation over long time scales.
DM201509-0824 2015	Idex Memo	De Beers does not feel the love ( commentary on Kilalea's report).	Idex online, July 30, 1p.	United States	News item - De Beers
DC201510-2337 2015	CMKM Diamonds Inc.	CMKM defendants see Spooner plead guilty.	Stockwatch, Sept. 10, 2p.	United States, Nevada	News item - CMKM
DM201510-2016 2015	Diamonds.net	GIA plans 2016 for opening for synthetic research centre.	Diamonds.net, Sept. 1, 1/4p.	United States, New Jersey	News item - GIA
DS201511-1826 2015	Boyd, O.S., Smalley, R., Zeng, Y.	Crustal deformation in the New Madrid seismic zone and the role of postseismic processes.	Journal of Geophysical Research, Vol. 120, 8, pp. 5782-5803.	United States, Arkansas	Geophysics - seismics
	Abstract: Global Navigation Satellite System data across the New Madrid seismic zone (NMSZ) in the central United States over the period from 2000 through 2014 are analyzed and modeled with several deformation mechanisms including the following: (1) creep on subsurface dislocations, (2) postseismic frictional afterslip and viscoelastic relaxation from the 1811–1812 and 1450 earthquakes in the NMSZ, and (3) regional strain. In agreement with previous studies, a dislocation creeping at about 4 mm/yr between 12 and 20 km depth along the downdip extension of the Reelfoot fault reproduces the observations well. We find that a dynamic model of postseismic frictional afterslip from the 1450 and February 1812 Reelfoot fault events can explain this creep. Kinematic and dynamic models involving the Cottonwood Grove fault provide minimal predictive power. This is likely due to the smaller size of the December 1811 event on the Cottonwood Grove fault and a distribution of stations better suited to constrain localized strain across the Reelfoot fault. Regional compressive strain across the NMSZ is found to be less than 3?×?10?9/yr. If much of the present-day surface deformation results from afterslip, it is likely that many of the earthquakes we see today in the NMSZ are aftershocks from the 1811–1812 New Madrid earthquakes. Despite this conclusion, our results are consistent with observations and models of intraplate earthquake clustering. Given this and the recent paleoseismic history of the region, we suggest that seismic hazard is likely to remain significant.
DS201511-1848 2015	Kaban, M.K., Mooney, W.D., Petrunin, A.G.	Cratonic root beneath North America shifted by basal drag from the convecting mantle.	Nature Geoscience, Vol. 8, 10, pp. 797-800.	United States, Canada	Geophysics - seismics
	Abstract: Stable continental cratons are the oldest geologic features on the planet. They have survived 3.8 to 2.5 billion years of Earth’s evolution1, 2. The key to the preservation of cratons lies in their strong and thick lithospheric roots, which are neutrally or positively buoyant with respect to surrounding mantle3, 4. Most of these Archaean-aged cratonic roots are thought to have remained stable since their formation and to be too viscous to be affected by mantle convection2, 3, 5. Here we use a combination of gravity, topography, crustal structure and seismic tomography data to show that the deepest part of the craton root beneath the North American Superior Province has shifted about 850?km to the west-southwest relative to the centre of the craton. We use numerical model simulations to show that this shift could have been caused by basal drag induced by mantle flow, implying that mantle flow can alter craton structure. Our observations contradict the conventional view of cratons as static, non-evolving geologic features. We conclude that there could be significant interaction between deep continental roots and the convecting mantle.
DS201511-1861 2015	Liu, L.	The ups and downs of North America: evaluating the role of mantle dynamic topography since the Mesozoic.	Reviews of Geophysics, Vol. 53, 3, pp. 1022-1049.	Canada, United States	Geodynamics
	Abstract: The driving force for transient vertical motions of Earth's surface remains an outstanding question. A main difficulty lies in the uncertain role of the underlying mantle, especially during the geological past. Here I review previous studies on both observational constraints and physical mechanisms of North American topographic evolution since the Mesozoic. I first summarize the North American vertical motion history using proxies from structural geology, geochronology, sedimentary stratigraphy, and geomorphology, based on which I then discuss the published physical models. Overall, there is a progressive consensus on the contribution of mantle dynamic topography due to buoyancy structures associated with the past subduction. At the continental scale, a largely west-to-east migrating deformation pattern suggests an eastward translation of mantle dynamic effects, consistent with models involving an eastward subduction and sinking of former Farallon slabs since the Cretaceous. Among the existing models, the inverse model based on an adjoint algorithm and time-dependent data constraints provides the most extensive explanations for the temporal changes of North American topography since the Mesozoic. At regional scales, debates still exist on the predicted surface subsidence and uplift within both the western and eastern United States, where discrepancies are likely due to differences in model setup (e.g., mantle dynamic properties and boundary conditions) and the amount of time-dependent observational constraints. Toward the development of the next-generation predictive geodynamic models, new research directions may include (1) development of enhanced data assimilation capabilities, (2) exploration of multiscale and multiphysics processes, and (3) cross-disciplinary code coupling.
DM201511-2200 2015	Stockwatch	CMKM Diamonds Inc. defendants moan about jail conditions.	Stockwatch.com, Sept. 28, 1p.	United States	News item - CMKM
DS201512-1942 1989	McCandless, T.E.	Microdiamonds from the Sloan 1 and 2 kimberlites, Colorado, USA.	28th International Geological Congress, Washington DC, Workshop on Diamonds, extended abstracts, pp. 44-46.	United States, Colorado Plateau	Microdiamonds
DS201512-1944 1994	McCandless, T.E., Waldman, M.A., Gurney, J.J.	Macro- and microdiamonds from Arkansas lamproites: morphology, inclusions and isotope geochemistry.	Proceedings of the 5th. International Kimberlite Conference, Vol. 2, pp. 78-97.	United States, Arkansas	Microdiamonds
	Abstract: The first report of diamond in igneous rock in the United States originated at Prairie Creek, Arkansas. We have examined the morphological, carbon isotope, and inclusion characteristics of diamonds from Prairie Creek, and from the Twin Knobs # 1, #2, Black Lick, and American lamproites. White is the most common macrodiamond color at Prairie Creek (62% of total), with 20% brown and 16% yellow. This contrasts with Australian lamproites where brown predominates, and with other North American localities such as the Sloan, Colorado kimberlites where yellow is rare. Lamination lines indicate ductile deformation at mantle conditions. The macrodiamonds are very resorbed; 82% are equiform or distorted tetrahexahedroida and none are octahedra. Low relief surfaces indicate prolonged and/or intense resorption. Microdiamonds differ dramatically, with octahedra and fragn~ents common and tetrahexahedroida abscnL Serrate laminae, knob-like asperities, pointed plates, ribbing, and non-uniform resorption are the most common surface features. Diamonds from the Twin Knobs # 1 lamproite are similar to microdiamonds with respect to size and surface features. Magnetite and olivine (F093) are the only primary inclusions foqnd in the diamonds, although inclusions of peridotitic and eclogitic parageneses have been reported in previous studies. Carbon isotope B13c values for Prairie Creek macrodiamonds peak at-3.0 to -6.2 %o (ave. -4.7 %o for 19 stones) and -10.3 to -10.6 %o (ave. -10.5 %o for 2 stones). The diamonds with magnetite and olivine inclusions have B13c values of -5.1 %o and -4.0 %o respectively. Microdiamonds from Prairie Creek, Twin Knobs #2, American, and Black Lick are similar to Prairie Creek macrodiamonds ( -0.5 to -7 .8; ave. -4.1 %o for 8 stones). A Prairie Creek and a Black Lick microdiamond have B13c values of -26.1 and -25.2%orespectively, and the latter exhibits non-uniform resorption. Lamination lines on macrodiamonds and xenocrystic surface features on microdiamonds imply that both are xenocrysts in lamproite. Carbon isotopes are characteristic of a peridotitic or primordial carbon reservoir. Two 13cdepleted microdiamonds may be from a subducted carbon source. In comparison to macrodiamond populations from most kimberlites, Prairie Creek macrodiamonds are intensely resorbed, and lamproite may be more corrosive than kimberlite \\ ith respect to diamond resorption. Microdiamonds were probably encapsulated in xenolith material ani.! esca•,)ed resorption. The differences in size and color of Prairie Creek macrodiamonds relative to Sloan kimberlitic diamonds are genetic, and may be related to their formation in lithosphere of differing age and tectonic history.
DS201601-0009 2015	Cafferky, S., Schmandt, B.	Teleseismic P wave spectra from USArray and implications for upper mantle attentuation and scattering.	Geochemistry, Geophysics, Geosystems: G3, Vol. 16, 10, pp. 3343-3361.	United States	Geophysics - seismics
	Abstract: Teleseismic P wave amplitude spectra from deep earthquakes recorded by USArray are inverted for maps of upper mantle ?t* for multiple frequency bands within 0.08-2 Hz. All frequency bands show high ?t* regions in the southwestern U.S., southern Rocky Mountains, and Appalachian margin. Low ?t* is more common across the cratonic interior. Inversions with narrower frequency bands yield similar patterns, but greater ?t* magnitudes. Even the two standard deviation ?t* magnitude for the widest band is ?2-7 times greater than predicted by global QS tomography or an anelastic olivine thermal model, suggesting that much of the ?t* signal is nonthermal in origin. Nonthermal contributions are further indicated by only a moderate correlation between ?t* and P travel times. Some geographic variations, such as high ?t* in parts of the cratonic interior with high mantle velocities and low heat flow, demonstrate that the influence of temperature is regionally overwhelmed. Transverse spectra are used to investigate the importance of scattering because they would receive no P energy in the absence of 3-D heterogeneity or anisotropy. Transverse to vertical (T/Z) spectral ratios for stations with high ?t* are higher and exhibit steeper increases with frequency compared to T/Z spectra for low ?t* stations. The large magnitude of ?t* estimates and the T/Z spectra are consistent with major contributions to ?t* from scattering. A weak positive correlation between intrinsic attenuation and apparent attenuation due to scattering may contribute to ?t* magnitude and the moderate correlation of ?t* with travel times.
DM201601-0066 2015	Diamonds.net	Diamonds created at room temperature in North Carolin a State University lab. Q-carbon	Diamonds.net, Dec. 1, 1/4p.	United States, North Carolina	News item - synthetics
DS201601-0023 2015	Johnson, K.N., Finnegan, N.J.	A lithologic control on active meandering in bedrock channels.	Geological Society of America Bulletin, Vol. 127, pp. 11/12, pp. 1766-1776.	United States, California	Not specific to diamonds but of interest
	Abstract: Topographic evidence requires that some rivers actively meander in bedrock, yet the way in which rivers can erode laterally and meander within bedrock banks is not well understood. Lateral channel migration, and especially lateral channel migration via active bedrock meandering, is commonly responsible for the preservation of unpaired strath terraces. A process-level understanding of lateral channel migration and active meandering in bedrock rivers is key to interpreting the climatic and tectonic significance of unpaired strath terraces and the planform shape of bedrock rivers. In this study, we compare erosional processes in two adjacent bedrock channels in the Santa Cruz Mountains, California. The main differences between these channels are that Pescadero Creek actively meanders within mudstone, while Butano Creek is straight and incises sandstone. Laboratory rock strength and slake durability tests show that while the two lithologies have similar tensile strengths before drying, the meander-supporting mudstone loses strength dramatically when dried and rewet (slakes), while the sandstone does not. The slaked mudstone bank rock was easily detached without the need for bed-load tools during in situ erosion tests, while mudstone that had not dried and sandstone were not detachable. The depth of bank rock detached solely from rewetting of previously dried mudstone ranges between 1 and 8 mm, which is well in excess of annual background erosion in the Santa Cruz Mountains. In addition, boulders of the mudstone rapidly disintegrated upon wetting and drying in the laboratory, whereas sandstone boulders remained intact. In the meandering stream, there is a consistent pattern of scoured bedrock (exposed to drying and slaking) along the outside "cutbank" of meander bends and forced bars that grade into soil and vegetation, which protect the bedrock from slaking along the inside of bends. Additionally, in the meandering stream, subaerially exposed mudstone clasts are often found to be disintegrating on the surface of bars. Taken together, these observations suggest that slaking allows for bedrock meandering in two fundamental ways. First, by rapidly disintegrating coarse hillslope-derived sediment that is deposited in the channel, slaking suppresses the negative feedback on lateral channel migration that would otherwise result from the buildup of talus along a retreating bedrock valley wall on the outside of a meander bend. Second, at cutbanks where scour exposes bare bedrock to drying, slaking weakens a layer of bank rock to the point where it can be eroded by clear-water flows. In these ways, slaking enables erosion into bedrock banks in response to curvature-driven fluid shear stress perturbations, as in alluvial rivers.
DM201602-0304 2015	Diamonds.net	Lazare Kaplan subject to SEC action over failure to submit filings.	Diamonds.net, Dec. 31, 1/4p.	United States	News item - Lazar Kaplan
DM201602-0307 2016	Diamonds.net	International Gem Tower developer takes further control in the NY diamond district.	Diamonds.net, Jan. 13, 1/4p.	United States, New York	News item - Gem Tower
DM201602-0362 2015	The Israeli Diamond Industry	Diamonds for the people: the story of American diamonds… mentions Kelsey Lake and Crater of Diamonds.	www.israelidiamondc.co.il, Dec. 28, 1p.	United States, Colorado Plateau, Arkansas	News item - Kelsey Lake
DM201603-0486 2016	Creamers Mining Weekly	Rare Earth Salts inks five year commercial agreement with Rare Earth Recovery Sciences.	Creamers Mining Weekly, Feb. 3, 1/4p.	United States	News item - Rare Earth Salts
DS201603-0386 2015	Hopper, E., Fischer, K.M.	The meaning of midlithospheric discontinuities: a case study in the northern U.S. craton.	Geochemistry, Geophysics, Geosystems: G3, Vol. 16, 12, pp. 4057-4083.	United States	Geophysics - seismics
DS201603-0396 2016	Long, M.D., Jackson, K.G., McNamara, J.F.	SKS splitting beneath transportable array stations in eastern North America and the signature of past lithospheric deformation.	Geochemistry, Geophysics, Geosystems: G3, Vol. 17, 1, pp. 2-15.	United States	Geophysics - seismics
	Abstract: Seismic anisotropy in the upper mantle beneath continental interiors is generally complicated, with contributions from both the lithosphere and the asthenosphere. Previous studies of SKS splitting beneath the eastern United States have yielded evidence for complex and laterally variable anisotropy, but until the recent arrival of the USArray Transportable Array (TA) the station coverage has been sparse. Here we present SKS splitting measurements at TA stations in eastern North America and compare the measured fast directions with indicators such as absolute plate motion, surface geology, and magnetic lineations. We find few correlations between fast directions and absolute plate motion, except in the northeastern U.S. and southern Canada, where some stations exhibit variations in apparent splitting with backazimuth that would suggest multiple layers of anisotropy. A region of the southeastern U.S. is dominated by null SKS arrivals over a range of backazimuths, consistent with previous work. We document a pattern of fast directions parallel to the Appalachian mountain chain, suggesting a contribution from lithospheric deformation associated with Appalachian orogenesis. Overall, our measurements suggest that upper mantle anisotropy beneath the eastern United States is complex, with likely contributions from both asthenospheric and lithospheric anisotropy in many regions.
DS201603-0405 2016	Nesheim, T.O.	Review of kimberlite exploration and diamond mine developments along the Superior Craton: implications for eastern North Dakota.	Geo News ( North Dakota), January pp. 7-10.	United States, North Dakota	Superior Craton arena
	Abstract: Beneath eastern North Dakota lays the Superior Craton and the potential for continued diamond exploration as well as diamond mine development. The Superior Craton is a large piece of Earth’s crust that has been tectonically stable for over 2.5 billion years. The long duration of tectonic stability has allowed the underlying mantle to cool enough to develop the necessary temperature and pressure conditions to form diamonds at depths of more than 50 miles below the surface. Diamonds are transported to the surface through kimberlitic eruptions, which are volcanic eruptions that originate tens of miles below the surface and typically erupt along zones of weakness in Earth’s crust such as faults and fractures. The resulting eruption commonly forms a pipe-shaped geologic feature called a kimberlite. Kimberlites typically occur in groups referred to as either fields or clusters. Although some kimberlites contain high concentrations of diamonds, most either contain relatively low concentrations or are completely barren of diamonds. North Dakota's first diamond exploration test well was drilled during 2010 in Pembina County, located in the northeastern corner of the state (Nesheim, 2013). Although this diamond test well failed to encounter a kimberlite, the growing number of kimberlites being discovered and diamond mine projects being developed across the Superior Craton suggests diamond exploration will continue into North Dakota’s future (figs. 1 and 2). Understanding the distribution and approximate emplacement (eruption) ages of currently discovered kimberlites across the Superior Craton may provide insight into exploring for, and predicting, the distribution of possible kimberlites within eastern North Dakota.
DS201603-0412 2016	Pollitz, F.F., Mooney, W.D.	Seismic velocity structure of the crust and shallow mantle of the central and eastern United States by seismic surface wave imaging.	Geophysical Research Letters, Vol. 43, 1, pp. 118-126.	United States	Geophysics - seismics
DS201603-0413 2016	Porter, R., Liu, Y., Holt, W.E.	Lithospheric records of orogeny within the continental US.	Geophysical Research Letters, Vol. 43, 1, pp. 144-153.	United States	Geophysics - gradiometry
	Abstract: In order to better understand the tectonic evolution of the North American continent, we utilize data from the EarthScope Transportable Array network to calculate a three-dimensional shear velocity model for the continental United States. This model was produced through the inversion of Rayleigh wave phase velocities calculated using ambient noise tomography and wave gradiometry, which allows for sensitivity to a broad depth range. Shear velocities within this model highlight the influence of orogenic and postorogenic events on the evolution of the lithosphere. Most notable is the contrast in crustal and upper mantle structure between the relatively slow western and relatively fast eastern North America. These differences are unlikely to stem solely from thermal variations within the lithosphere and highlight both the complexities in lithospheric structure across the continental U.S. and the varying impacts that orogeny can have on the crust and upper mantle.
DM201604-0691 2016	Diamonds.net	De Beers rolls out diamond reselling business in USA.	Diamonds.net, Mar. 17, 1/4p.	United States	News item - De Beers
DS201604-0626 2016	Shavers, E.J., Ghulam, A., Encarnacion, J., Bridges, D.L., Luetemeyer, P.B.	Carbonatite associated with the ultramafic diatremes in the Avon volcanic district, Missouri, USA: field, petrographic and geochemical constraints.	Lithos, Vol. 248, pp. 506-516.	United States, Missouri	Carbonatite
	Abstract: Here we report field, petrographic, and geochemical analyses of the southeast Missouri Avon Volcanic District intrusive rocks and present the first combined textural and geochemical evidence for the presence of a primary magmatic carbonatite phase among ultramafic dikes, pipes, and diatremes of olivine melilitite, alnöite, and calciocarbonatite. The ?13CVPDB values measured for primary calciocarbonatite as well as carbonates in olivine melilitite and alnöite rocks range from ? 3.8‰ to ? 8.2‰, which are within the typical range of mantle values and are distinct from values of the carbonate country rocks, 0.0‰ to ? 1.3‰. The carbonate oxygen isotope compositions for the intrusive lithologies are in the range of 21.5‰ to 26.2‰ (VSMOW), consistent with post-emplacement low temperature hydrothermal alteration or kinetic fractionation effects associated with decompression and devolatilization. Metasomatized country rock and breccia-contaminated igneous lithologies have carbonate ?13CVPDB values gradational between primary carbonatite values and country rock values. Unaltered sedimentary dolomite breccia and mafic spheroids entrained by calciocarbonatite and the lack of microstratigraphic crystal growth typical of carbonate replacement, also exclude the possibility of hydrothermal replacement as the cause of the magmatic-textured carbonates. Rare earth element (REE) patterns for the alnöite, olivine melilitite, and carbonatite are similar to each other with strong light REE enrichment and heavy REE depletion relative to MORB. These patterns are distinct from those of country rock rhyolite and sedimentary carbonate. These data suggest that rocks of the Avon Volcanic District represent a single ultramafic-carbonatite intrusive complex possibly derived from a single mantle source.
DS201604-0635 2016	Thomas, M.D., Ford, K.L., Keating, P.	Review paper: exploration geophysics for intrusion hosted rare metals.	Geophysical Prospecting, in press available	Australia, United States, Nebraska	Carbonatite, Alkaline rocks
	Abstract: Igneous intrusions, notably carbonatitic-alkalic intrusions, peralkaline intrusions, and pegmatites, represent significant sources of rare-earth metals. Geophysical exploration for and of such intrusions has met with considerable success. Examples of the application of the gravity, magnetic, and radiometric methods in the search for rare metals are presented and described. Ground gravity surveys defining small positive gravity anomalies helped outline the shape and depth of the Nechalacho (formerly Lake) deposit within the Blatchford Lake alkaline complex, Northwest Territories, and of spodumene-rich mineralization associated with the Tanco deposit, Manitoba, within the hosting Tanco pegmatite. Based on density considerations, the bastnaesite-bearing main ore body within the Mountain Pass carbonatite, California, should produce a gravity high similar in amplitude to those associated with the Nechalacho and Tanco deposits. Gravity also has utility in modelling hosting carbonatite intrusions, such as the Mount Weld intrusion, Western Australia, and Elk Creek intrusion, Nebraska. The magnetic method is probably the most successful geophysical technique for locating carbonatitic-alkalic host intrusions, which are typically characterized by intense positive, circular to sub-circular, crescentic, or annular anomalies. Intrusions found by this technique include the Mount Weld carbonatite and the Misery Lake alkali complex, Quebec. Two potential carbonatitic-alkalic intrusions are proposed in the Grenville Province of Eastern Quebec, where application of an automatic technique to locate circular magnetic anomalies identified several examples. Two in particular displayed strong similarities in magnetic pattern to anomalies accompanying known carbonatitic or alkalic intrusions hosting rare-metal mineralization and are proposed to have a similar origin. Discovery of carbonatitic-alkalic hosts of rare metals has also been achieved by the radiometric method. The Thor Lake group of rare-earth metal deposits, which includes the Nechalacho deposit, were found by follow-up investigations of strong equivalent thorium and uranium peaks defined by an airborne survey. Prominent linear radiometric anomalies associated with glacial till in the Canadian Shield have provided vectors based on ice flow directions to source intrusions. The Allan Lake carbonatite in the Grenville Province of Ontario is one such intrusion found by this method. Although not discovered by its radiometric characteristics, the Strange Lake alkali intrusion on the Quebec-Labrador border is associated with prominent linear thorium and uranium anomalies extending at least 50 km down ice from the intrusion. Radiometric exploration of rare metals hosted by pegmatites is evaluated through examination of radiometric signatures of peraluminous pegmatitic granites in the area of the Tanco pegmatite.
DS201604-0639 2015	Zwaan, J.C., Buter, E., Mertz-Kraus, R., Kane, R.E.	Alluvial sapphires from Montana: inclusions, geochemistry, and indications of a metasomatic origin.	Gems & Gemology, Vol. 51, 4, winter pp. 370-391.	United States, Montana	Sapphires
	Abstract: Although the source rocks of alluvial sapphires in Montana have never been discovered, inclusions and geochemistry of material from this location may give clues to their original source. Mineral inclusions in alluvial Montana sapphires, mainly from Rock Creek, were identified and compared with existing data. Topaz was a remarkable find in one of these samples; other newly identified mineral inclusions in Montana sapphire were allanite, anatase, chalcopyrite, and monazite. Together with the presence of calcium-rich plagioclase, alkali-feldspar, apatite, barite, phlogopite, a pyrochlore-group mineral previously called uranpyrochlore, and chromite/spinel, these inclusions may reflect a metasomatic origin for the sapphires. This is supported by their chemical composition, which largely coincides with sapphires of plumasitic/metasomatic origin. The secondary Montana sapphires analyzed in this study are characterized by mean values of Fe (4686 ppmw), Ti (58 ppmw), Ga (51 ppmw), Mg (35 ppmw), and Cr (21 ppmw). Fe-Mg-Ga ratios help to distinguish them from sapphires with overlapping properties, such as those from Umba, Tanzania, and Rio Mayo, Colombia.
DS201605-0854 2016	Kjarsgaard, B.	A 4000 km long Jurassic kimberlite corridor in North America.	DCO Edmonton Diamond Workshop, June 8-10	Canada, United States	Petrology
DS201605-0880 2016	Neave, D.A., Black, M., Riley, T.R., Gibson, S.A., Ferrier, G., Wall, F., Broom-Fendley, S.	On the feasibility of imaging carbonatite-hosted rare earth element deposits using remote sensing.	Economic Geology, Vol. 111, pp. 641-665.	China, United States, Europe, Greenland	Deposit - Bayan Obo, Mountain Pass, Motzfeldt, Ilimaussaq
	Abstract: Rare earth elements (REEs) generate characteristic absorption features in visible to shortwave infrared (VNIR-SWIR) reflectance spectra. Neodymium (Nd) has among the most prominent absorption features of the REEs and thus represents a key pathfinder element for the REEs as a whole. Given that the world’s largest REE deposits are associated with carbonatites, we present spectral, petrographic, and geochemical data from a predominantly carbonatitic suite of rocks that we use to assess the feasibility of imaging REE deposits using remote sensing. Samples were selected to cover a wide range of extents and styles of REE mineralization, and encompass calcio-, ferro- and magnesio-carbonatites. REE ores from the Bayan Obo (China) and Mountain Pass (United States) mines, as well as REE-rich alkaline rocks from the Motzfeldt and Ilímaussaq intrusions in Greenland, were also included in the sample suite. The depth and area of Nd absorption features in spectra collected under laboratory conditions correlate positively with the Nd content of whole-rock samples. The wavelength of Nd absorption features is predominantly independent of sample lithology and mineralogy. Correlations are most reliable for the two absorption features centered at ~744 and ~802 nm that can be observed in samples containing as little as ~1,000 ppm Nd. By convolving laboratory spectra to the spectral response functions of a variety of remote sensing instruments we demonstrate that hyperspectral instruments with capabilities equivalent to the operational Airborne Visible-Infrared Imaging Spectrometer (AVIRIS) and planned Environmental Mapping and Analysis Program (EnMAP) systems have the spectral resolutions necessary to detect Nd absorption features, especially in high-grade samples with economically relevant REE accumulations (Nd > 30,000 ppm). Adding synthetic noise to convolved spectra indicates that correlations between Nd absorption area and whole-rock Nd content only remain robust when spectra have signal-to-noise ratios in excess of ~250:1. Although atmospheric interferences are modest across the wavelength intervals relevant for Nd detection, most REE-rich outcrops are too small to be detectable using satellite-based platforms with >30-m spatial resolutions. However, our results indicate that Nd absorption features should be identifiable in high-quality, airborne, hyperspectral datasets collected at meter-scale spatial resolutions. Future deployment of hyperspectral instruments on unmanned aerial vehicles could enable REE grade to be mapped at the centimeter scale across whole deposits.
DS201605-0916 2016	Verplanck, P.L., Mariano, A.N., Mariano, A.M.Jr.	Rare earth element ore geology of carbonatites.	SEG Reviews in Economic Geology, editors Verplanck, P.L., Hitzman, M.W., No. 18, pp. 5-32.	China, United States, California	Bauan Obo, Maoniuping, Dalucao, Mountain Pass
DC201606-1252 2016	De Beers Group	US consumer demand for diamond jewellery grows to record level.	De Beers Groups of Companies, Apr. 27, 2p.	United States	News item - press release
DS201606-1099 2016	Kilian, T.M., Bleeker, W., Chamberlain. K., Evans, D.A.D., Cousens, B.	Paleomagnetism, geochronology and geochemistry of the Paleoproterozoic Rabbit Creek and Powder River dyke swarms: implications for Wyoming in supercraton Superia.	Geological Society of London Special Publication Supercontinent Cycles through Earth History., Vol. 424, pp. 15-45.	United States, Wyoming, Colorado Plateau	Supercontinents
DS201606-1104 2016	Pehrsson, S.J., Eglinton, B.M., Evans, D.A.A., Huston, D.	Metallogeny and its link to orogenic style during the Nuna supercontinent.	Geological Society of London Special Publication Supercontinent Cycles through Earth History., Vol. 424, pp. 83-94.	United States, Canada	Supercontinents
	Abstract: The link between observed episodicity in ore deposit formation and preservation and the supercontinent cycle is well established, but this general framework has not, however, been able to explain a lack of deposits associated with some accretionary orogens during specific periods of Earth history. Here we show that there are intriguing correlations between styles of orogenesis and specific mineral deposit types, in the context of the Nuna supercontinent cycle. Using animated global reconstructions of Nuna's assembly and initial breakup, and integrating extensive databases of mineral deposits, stratigraphy, geochronology and palaeomagnetism we are able to assess spatial patterns of deposit formation and preservation. We find that lode gold, volcanic-hosted-massive-sulphide and nickel-copper deposits peak during closure of Nuna's interior ocean but decline during subsequent peripheral orogenesis, suggesting that accretionary style is also important. Deposits such as intrusion-related gold, carbonate-hosted lead-zinc and unconformity uranium deposits are associated with the post-assembly, peripheral orogenic phase. These observations imply that the use of plate reconstructions to assess orogenic style, although challenging for the Precambrian, can be a powerful tool for mineral exploration targeting.
DS201607-1333 2016	Brandon, A.	Mapping off-craton subcontinental mantle lithosphere growth and destruction in the southwest United States using Os isotopes.	IGC 35th., Session A Dynamic Earth 1p. Abstract	United States	Geochronology
DS201607-1289 2016	Calo, M., Bodin, T., Romanowicz, B.	Layered structure in the upper mantle across North America from joint inversion of long and short period seismic data.	Earth and Planetary Science Letters, Vol. 449, pp. 164-175.	United States, Canada	Geophysics - seismics
	Abstract: We estimate crustal and uppermost mantle shear velocity structure beneath 30 stations in North America by jointly inverting the high frequency scattered wavefield observed in the P wave coda, together with long period surface wave phase and group dispersion data. Several features distinguish our approach from previous such joint inversions. 1) We apply a cross-convolution method, rather than more standard deconvolution approaches used in receiver function studies, and consider both Love and Rayleigh wave dispersion, allowing us to infer profiles of radial anisotropy. 2) We generate probabilistic 1D radially anisotropic depth profiles across the whole uppermost mantle, down to ?350 km depth. 3) The inverse problem is cast in a trans-dimensional Bayesian formalism, where the number of isotropic and anisotropic layers is treated as unknown, allowing us to obtain models described with the least number of parameters. Results show that the tectonically active region west of the Rocky Mountain Front is marked by a Lithospheric Asthenosphere Boundary and a Lehmann Discontinuity occurring at relatively shallow depths (60-150 km and 100-200 km, respectively), whereas further east, in the stable craton, these discontinuities are deeper (170-200 km and 200-250 km, respectively). In addition, in the stable part of the continent, at least two Mid-Lithospheric Discontinuities are present at intermediate depths, suggesting the existence of strong lithospheric layering, and a mechanism for lithospheric thickening by underplating of additional layers as cratonic age increases. The Moho across the continent as well as mid-crustal discontinuities in the craton are also imaged, in agreement with independent studies.
DS201607-1368 2016	Olsen, P.	The Colorado Plateau coring project ( CPCP): exportable chronostratigraphic context for Triassic-Jurassic Earth System Events and processes.	IGC 35th., Session The Deep Earth 1 p. abstract	United States, Colorado Plateau	Coring project
DS201607-1320 2016	Weil, A.B., Yonkee, A., Schultz, M.	Tectonic evolution of a Laramide transverse structural zone: Sweetwater Arch, south central Wyoming.	Tectonics, Vol. 35, 5, pp. 1090-1120.	United States, Wyoming, Colorado Plateau	Sweetwater Arch
	Abstract: Structural, anisotropy of magnetic susceptibility (AMS), and paleomagnetic data record patterns of layer-parallel shortening (LPS), vertical-axis rotation, and regional fault-fold evolution across the Sweetwater Arch, a major west to WNW trending, basement-cored Laramide uplift in Wyoming. The southern arch flank is bounded by a WNW striking reverse fault zone that imbricated basement and cover rocks, the northern flank is bounded by a west striking fault zone with a component of strike-slip and NW trending en echelon folds, and the eastern plunge transitions into an area of multiple-trending faults and folds. Synorogenic strata record major arch uplift from Maastrichtian to Early Eocene time, followed by arch collapse. LPS, with development of systematic minor fault sets and AMS lineations, preceded large-scale folding. LPS directions, estimated from both minor fault and AMS data, were oriented WSW along the northern flank, subparallel to Laramide regional shortening, but were refracted to the SSW along the southern flank, and to the west along the eastern arch plunge. Additional minor faults developed along steep fold limbs during continued shortening, with directions remaining SSW along the southern flank but becoming more variable along the eastern plunge where an increasingly heterogeneous stress field developed as additional faults were activated along basement heterogeneities. Vertical-axis rotation was limited along the arch flanks, whereas the eastern plunge underwent counterclockwise rotation. Deflections in shortening directions were partly related to basement heterogeneities, including weak supracrustal belts on the arch flanks, a strong granitic core, and local reactivation of Precambrian shear zones.
DS201608-1388 2016	Andersen, A.K., Clar, J.G., Larson, P.B., Neill, O.K.	Mineral chemistry and petrogenesis of a HFSE(+HREE) occurrence, peripheral to carbonatites of the Bear Lodge alkaline complex, Wyoming.	American Mineralogist, Vol. 101, pp. 1604-1623.	United States, Wyoming, Colorado Plateau	Bear Lodge
	Abstract: Rare earth mineralization in the Bear Lodge alkaline complex (BLAC) is mainly associated with an anastomosing network of carbonatite dikes and veins, and their oxidized equivalents. Bear Lodge carbonatites are LREE-dominant, with some peripheral zones enriched in HREEs. We describe the unique chemistry and mineralogy one such peripheral zone, the Cole HFSE(+HREE) Occurrence (CHO), located ~2 km from the main carbonatite intrusions. The CHO consists of anatase, xenotime-(Y), brockite, fluorite, zircon, and K-feldspar, and contains up to 44.88% TiO2, 3.12% Nb2O5, 6.52% Y2O3, 0.80% Dy2O3, 2.63% ThO2, 6.0% P2O5, and 3.73% F. Electron microprobe analyses of xenotime-(Y) overgrowths on zircon show that oscillatory zoning is a result of variable Th and Ca content. Cheralite-type substitution, whereby Th and Ca are incorporated at the expense of REEs, is predominant over the more commonly observed thorite-type substitution in xenotime-(Y). Th/Ca-rich domains are highly beam sensitive and accompanied by high-F concentrations and low-microprobe oxide totals, suggesting cheralite-type substitution is more easily accommodated in fluorinated and hydrated/hydroxylated xenotime-(Y). Analyses of xenotime-(Y) and brockite show evidence of Embedded Image substitution for Embedded Image with patches of an undefined Ca-Th-Y-Ln phosphovanadate solid-solution composition within brockite clusters. Fluorite from the CHO is HREE-enriched with an average Y/Ho ratio of 33.2, while other generations of fluorite throughout the BLAC are LREE-enriched with Y/Ho ratios of 58.6-102.5. HFSE(+HREE) mineralization occurs at the interface between alkaline silicate intrusions and the first outward occurrence of calcareous Paleozoic sedimentary rocks, which may be local sources of P, Ti, V, Zr, and Y. U-Pb zircon ages determined by LA-ICP-MS reveal two definitive 207Pb/206Pb populations at 2.60-2.75 and 1.83-1.88 Ga, consistent with derivation from adjacent sandstones and Archean granite. Therefore, Zr and Hf are concentrated by a physical process independent of the Ti/Nb-enriched fluid composition responsible for anatase crystallization. The CHO exemplifies the extreme fluid compositions possible after protracted LREE-rich crystal fractionation and subsequent fluid exsolution in carbonatite-fluid systems. We suggest that the anatase+xenotime-(Y)+brockite+fluorite assemblage precipitated from highly fractionated, low-temperature (<200 °C), F-rich fluids temporally related to carbonatite emplacement, but after significant fractionation of ancylite and Ca-REE fluorocarbonates. Low-temperature aqueous conditions are supported by the presence of fine-grained anatase as the sole Ti-oxide mineral, concentrically banded botryoidal fluorite textures, and presumed hydration of phosphate minerals. Fluid interaction with Ca-rich lithologies is known to initiate fluorite crystallization which may cause destabilization of (HREE,Ti,Nb)-fluoride complexes and precipitation of REE+Th phosphates and Nb-anatase, a model valuable to the exploration for economic concentrations of HREEs, Ti, and Nb.
DS201608-1399 2016	Dirlam, D.	Dona Dirlam receives WJA special services award for excellence. Founder and director of the GIA Richard T. Liddicott Gemological Library and Information Center.	Idex Online, July 28, 1/2p.	United States, California	Award
DS201608-1429 2016	Palke, A.C., Renfro, N.D., Berg, R.B.	Origin of sapphires from lamprophyre dike at Yogo Gulch, Montana USA: clues to their melt inclusions.	Lithos, Vol. 260, pp. 339-344.	United States, Montana	Sapphires
	Abstract: Gem corundum (sapphire) has been mined from an ultramafic lamprophyre dike at Yogo Gulch in central Montana for over 100 years. The sapphires bear signs of corrosion showing that they were not in equilibrium with the lamprophyre that transported them; however, their genesis is poorly understood. We report here the observation of minute glassy melt inclusions in Yogo sapphires. These inclusions are Na- and Ca-rich, Fe-, Mg-, and K-poor silicate glasses with compositions unlike that of the host lamprophyre. Larger, recrystallized melt inclusions contain analcime and calcite drawing a striking resemblance to leucocratic ocelli in the lamprophyre. We suggest here that sapphires formed through partial melting of Al-rich rocks, likely as the lamprophyre pooled at the base of the continental crust. This idea is corroborated by MELTS calculations on a kyanite-eclogite protolith which was presumably derived from a troctolite precursor. These calculations suggest that corundum can form through peritectic melting of kyanite. Linking the melt inclusions petrologically to the lamprophyre represents a significant advancement in our understanding of sapphire genesis and sheds light on how mantle-derived magmas may interact with the continental crust on their ascent to the surface.
DS201608-1436 2016	Sakamaki, K., Sato, Y., Ogasawara, Y.	Hydrous Na-garnet from Garnet Ridge products of mantle metasomatism underneath the Colorado Plateau.	Progress in Earth and Planetary Science, Vol. 3, 20, 17p.	United States, Colorado Plateau	Metasomatism
	Abstract: This is the first report on amphibole exsolution in pyrope from the Colorado Plateau. Pyrope crystals delivered from mantle depths underneath the Colorado Plateau by kimberlitic volcanism at 30 Ma were collected at Garnet Ridge, northern Arizona. The garnet grains analyzed in this study occur as discrete crystals (without adjacent rock matrix) and are classified into two major groups, Cr-rich pyrope and Cr-poor pyrope. The Cr-poor pyrope group is divided into four subgroups based on exsolved phases: amphibole lamella type, ilmenite lamella type, dense lamellae type, and clinopyroxene/amphibole lamellae type. Exsolved amphibole occurs in amphibole lamella type, dense lamellae type, and clinopyroxene/amphibole lamellae type of Cr-poor pyrope. The amphibole crystals tend to have preferred orientations in their garnet hosts and occur as monomineralic hexagonal or rhombic prisms and tablets, and as multimineralic needles or blades with other exsolved phases. Exsolved amphibole has pargasitic compositions (Na2O up to 1.6 apfu based on 23 oxygen). Garnet host crystals that have undergone amphibole exsolution have low OH contents (2-42 ppmw H2O) compared to garnets that do not have amphibole lamellae (up to 115 ppmw H2O). The low OH contents of garnets hosting amphibole lamellae suggest loss of OH from garnet during amphibole exsolution. Amphibole exsolution from pyrope resulted from breakdown of a precursor “hydrous Na-garnet” composition (Mg,Na+ x)3(Al2???x, Mgx)2Si3O12???2x(OH)2x. Exsolution of amphibole and other phases probably occurred during exhumation to depths shallower than 100 km prior to volcanic eruption. Based on the abundance and composition of exsolved clinopyroxene and amphibole lamellae in one garnet, hydrous Na-garnet had excess silicon (Si3.017 apfu, 12 oxygen normalization, vs. X3Y2Si3O12 for typical garnet). Comparison with experimental data suggests crystallization at pressures near 6-8 GPa. Garnet crystals that host exsolved amphibole have compositions (Pyp49-76, 3-10 wt% CaO, and up to 0.6 wt% Cr2O3) similar to garnets reported from pyroxenites, and have pyrope-almandine-grossular compositional ranges that overlap with the Cr-rich pyrope (typical lherzolitic garnet). Hydrous Na-garnet was likely formed by metasomatic reactions between Cr-rich pyrope and Na-rich aqueous fluid in the deep upper mantle. The most likely source of metasomatic Na-rich fluid is ancient oceanic crust that was subducted before subduction of the Farallon Plate beneath the Colorado Plateau.
DS201608-1438 2015	Schulze, D.J., Hearn, B.C. Jr.	Mantle xenocrysts from the Masontown, Pennsylvania kimberlite: an ordinary mantle with Si-enriched spinel.	The Canadian Mineralogist, Vol. 53, pp. 767-773.	United States, Pennsylvania	Dike - Monongahela River
	Abstract: A hypabyssal kimberlite dike in southwestern Pennsylvania (USA), emplaced through Proterozoic basement and Phanerozic cover, contains a xenocryst and xenolith assemblage typical of material sampled within the subcontinental lithosphere, including xenocrysts of Cr-rich pyrope, magnesiochromite, Cr-rich diopside, and peridotite xenoliths. Temperatures and depths of equilibration of the clinopyroxene (840 ºC and 130 km to 1350 ºC and 170 km) indicate some sampling in the field of diamond stability. Diamonds have not been reported, however, and the chemistry of the garnet (lherzolite, Cr-poor megacryst, and Group II eclogite) and spinel (<56.0 wt.% Cr2O3) are consistent with diamond absence and the off-craton tectonic setting of the kimberlite. An unusual feature of this suite is that, unlike most mantle xenolith/xenocryst spinel, some of those from Masontown have an unusually high silica content (to 0.59 wt.% SiO2). The significance of the high silica content is unclear, but may be related to an ultrahigh-pressure precursor chromite polymorph with a calcium ferrite structure, which can accommodate Si in solid solution.
DM201608-1622 2016	Stockwatch	CMKK defendant Turino to plead guilty.	CMKM Diamonds Inc., Aug. 12, 3p.	United States, Nevada	News item - CMKM
DS201610-1849 2016	Chatterjee, R., Lassiter, J.C.	186Os/188Os variations in upper mantle peridotites: constraints on the Pt/Os ratio of primitive upper mantle, implications for late veneer accretion and mantle mixing timescales.	Chemical Geology, Vol. 442, pp. 11-22.	United States, Colorado Plateau	Peridotite
	Abstract: 186Os/188Os variations in mantle peridotites provide constraints on the long-term Pt/Os evolution of the depleted mantle and the Pt/Os ratio of the primitive upper mantle (PUM). We report new 186Os/188Os data for mantle peridotites from continental (Rio Grande Rift and Colorado Plateau) and oceanic (Lena Trough and Hawaiian Islands) settings that span a wide range in fertility (Al2O3 ? 0.67-4.42 wt.%) and 187Os/188Os ratios (0.1138-0.1305). Although peridotite 186Os/188Os values span only a narrow range (from 0.1198345 to 0.1198384), 186Os/188Os broadly correlates with indices of melt depletion including bulk rock Al2O3, spinel Cr#, and clinopyroxene Cr#, consistent with Pt depletion in residual peridotites. PUM 186Os/188Os is estimated to be 0.1198378 ± 23 (2 SD) based on extrapolation of 186Os/188Os-fertility trends, which is very slightly lower than H-chondrites [? 0.1198398 ± 16 (2 SD); Brandon et al., 2006]. This value is consistent with a PUM Pt/Os of 1.7 ± 0.2, similar to average Pt/Os ratios of fertile continental peridotites. The inferred PUM Pt/Os is slightly lower than but within error of Pt/Os values measured in several classes of chondrites [Carbonaceous ? 1.8 ± 0.2, Ordinary ? 1.9 ± 0.1, and Enstatite ? 1.9 ± 0.1 (Brandon et al., 2006)] indicating that PUM Pt/Os is broadly chondritic. In contrast, estimates for PUM Ru/Ir and Pd/Ir (cf. Becker et al., 2006) are suprachondritic. The addition of a chondritic late veneer alone cannot create a combination of chondritic and suprachondritic HSE ratios for the PUM. Instead, minor core segregation occurring concurrently with the addition of a late veneer may explain the observed mantle HSE abundances and ratios. Combined 186Os/188Os-187Os/188Os isotopic and Pt/Os and Re/Os variability in peridotites suggest an average mantle homogenization timescale of ~ 1.2 Ga. In contrast, combined Hf-Nd isotopic and Lu/Hf and Sm/Nd variability in peridotites indicate much shorter homogenization timescales (< 0.4 Ga), potentially reflecting enhanced homogenization by melt-rock interaction to which the Pt-Os and Re-Os systems are relatively immune. The mechanical mixing timescale inferred from Os isotopes is consistent with timescales predicted for whole mantle convection.
DM201610-1963 2016	Even-Zohar, C.	Botswana financing revolution: U.S. Gov't guarantees loans to diamond manufacturers. New Opic approved lending criteria.	DIB, No. 878, July 25, 12p.	Africa, Botswana, United States	News item - Barclays Bank
DM201610-1964 2016	Even-Zohar, C.	USA 2016: rough diamond 'Laundromat of choice'. Time for KP to lift its protective shield. Global rough trading pattern	DIB, No. 879, Sept. 6, 11p.	United States	News item - KP
DS201610-1861 2016	Freeman, Z.W., Hames, W., Bridges, D.L.	The Devonian Avon alkaline province, Missouri: characterization of subcontinental mantle source and evolution from olivine phenocrysts.	GSA Annual Meeting, 1/2p. abstract	United States, Missouri	Alnoite, melilitite
	Abstract: We present new data on the crystallization age of, and composition of olivine phenocrysts within, an alnöite and olivine melilitite of the Avon Alkalic Igneous Province (AAIP) of Missouri. The AAIP is an ultramafic igneous province consisting of more than 80 known lithologically and texturally diverse intrusions, cropping out in northeastern flank of the St. Francois Mtn. Terrane. 40Ar/39Ar geochronology of biotite phenocrysts constrains emplacement to 386 +/- 1 Ma. Xenocrystic biotite from one sample yields 40Ar/39Ar age spectra characteristic of episodic loss, indicating crystallization at ca. 1.3 Ga followed by partial loss in the ultramafic magma at 386 Ma. Olivines within the alnöite are subhedral, variably serpentinized, and embayed. Olivines within the melilitite are euhedral, but extensively serpentinized. Disequilibrium textures observed in alnöite olivine are consistent with resorption of magmatic olivine as a result of decompression during crystallization. Euhedral olivine within the melilitite appear to have remained in equilibrium with melt, suggesting derivation of alnöite and melilitite from unique magmas. Major and trace elemental abundances of olivine from the alnöite were characterized with electron probe microanalysis. Olivines are Mg-rich (Fo86.9-Fo89.9), and exhibit systematic variation in trace element (e.g., Ni (1627 to 3580 ppm), Cr (97 to 1603 ppm), Co (149 to 259 ppm), Ti (11 to 267 ppm), Al (undetectable to 923 ppm), and P (undetectable to 433 ppm)) abundances with decreasing forsterite content consistent with fractional crystallization. All geothermometers yield a range in temperature, e.g., the Al in olivine (De Hoog et al., 2009) yield temperatures of 1087° to 1313° C at depths of 80 km to 180 km (modern-day midcontinental LAB). Olivine trace element discrimination diagrams indicate AAIP magmas were derived from mantle sources with an alkalic affinity, similar to other continental alkaline rocks and kimberlite. A mantle origin via partial melting of carbonated peridotite mantle is suggested due to the high Mg content, results of geothermometric modeling, and high Ca and Ti abundance within olivine phenocrysts. Melting of the mantle may have ben triggered by "Acadian" tectonic events.
DS201610-1868 2016	Harper, D.R., Deangelis, M.T.	Examination of mica bearing rocks from the Magnet Cove alkaline intrusive complex, Arkansas.	GSA Annual Meeting, 1/2p. abstract	United States, Arkansas	Ijolite, carbonatite
	Abstract: The Magnet Cove Alkaline Intrusive Complex contains several silica-undersaturated igneous rock types (e.g. nepheline syenite, ijolite, carbonatite) that form a concentric ring map pattern approximately 4.6 square miles in area. These rings, which are likely the result of several nearly contemporaneous magma injection events during the mid Cretaceous, become increasingly silica-undersaturated from rim to core, and have been previously mapped as separate geologic units. The outer ring contains nepheline syenite, the intermediate ring contains both garnet ijolite and garnet biotite ijolite, and the core contains carbonatite. Though the detailed modal mineralogy differs somewhat between the silicate (i.e. syenite and ijolite) rock types, they all have in common the presence of mica group minerals. The purpose of this study is to examine and characterize the diversity of mica group minerals found in the silica-undersaturated rocks of Magnet Cove. Syenite and ijolite rock samples were collected from several locations within the complex, and thin sections were prepared for petrographic and electron microscope analysis using facilities and equipment at the UALR Rock Preparation Laboratory. Overall mineralogy from these samples indicates the presence of potassium feldspar, plagioclase feldspar, several feldspathoid minerals (nepheline, sodalite, altered leucite), amphiboles, pyroxenes (primarily aegerine and aegerine-augite), black Ti-bearing garnets (melanite, schorlomite), and various opaque minerals (e.g. magnetite, pyrite). Previously, micas in these rocks have been labeled simply as “biotite”. However, the ranges of color (yellowish-brown to bluish-green), crystal size (millimeter to several centimeters in diameter), and crystal habit (clusters of euhedral grains) in hand sample and variable pleochroism, ranging interference colors, reaction coronas, and zoning in thin section indicate a more interesting and complex chemical history.
DM201610-1968 2016	Idex Online	Court - award in excess of $100 million to Leviev from Julius Klein Group.	Idex online, Sept. 23, 1/4p.	United States	News item - Leviev
DS201610-1878 2016	Kilian, T.M., Chamberlain, K.R., Evans, D.A.D., Bleeker, W., Cousens, B.L.	Wyoming on the run - toward final Paleoproterozoic assembly of Laurentia.	Geology, Vol. 44, 10, pp. 863-866.	United States, Wyoming, Colorado Plateau	Craton, Nuna, Slave, Superior
	Abstract: Paleoproterozoic suture zones mark the formation of supercontinent Nuna and provide a record of North America's assembly. Conspicuously young ages (ca. 1.715 Ga) associated with deformation in southeast Wyoming craton argue for a more protracted consolidation of Laurentia, long after peak metamorphism in the Trans-Hudson orogen. Using paleomagnetic data from the newly dated 1899 ± 5 Ma Sourdough mafic dike swarm (Wyoming craton), we compare the relative positions of Wyoming, Superior, and Slave cratons before, during, and after peak metamorphism in the Trans-Hudson orogen. With these constraints, we refine a collisional model for Laurentia that incorporates Wyoming craton after Superior and Slave cratons united, redefining the Paleoproterozoic sutures that bind southern Laurentia.
DS201610-1895 2016	Peacock, J.R., Denton, K.M., Ponce, D.A.	Magnetotelluric imaging of a carbonatite terrane in the southeast Mojave desert, California and Nevada.	ASEG-PESA-AIG 2016 25th Geophysical Conference, abstract 5p.	United States, California, Nevada	Carbonatite
	Abstract: The southeast Mojave Desert hosts one of the world’s largest rare earth element (REE) deposits at Mountain Pass, California. Although surface geology has been studied, a full understanding of the carbonatite and associated intrusive suite complex requires subsurface geophysical characterization. In this study, a combination of geophysical methods, including magnetotelluric (MT), magnetics, and gravity are used to create a two-dimensional (2D) geophysical model to a depth of about 10 km. An electrically conductive body is found 2-3 km below and west of the deposit that is associated with a magnetic high that could be connected to a deeper (10 km) conductive body related to possible intrusions or hydrothermal systems. The carbonatite body coincides with a steep magnetic gradient and a bench or terrace in the gravity data that may reflect relative lower-density intrusive rocks. Although carbonatite rocks are typically magnetic, the carbonatite rocks, associated intrusive suite, and host rocks in this area are essentially non-magnetic. Combined geophysical data indicate that the enriched REE deposit may be related to a regional extensive hydrothermal alteration event.
DM201610-2033 2016	Rough-polished	Botswana-De Beers partnership in the spotlight at prestigious NY conference.	rough-polished.com, Sept. 27, 1/4p.	United States	News item - De Beers
DS201611-2132 2016	Poletti, J.E., Cottle, J.M., Hagen-Peter, G.A., Lackey, J.S.	Petrochronological constraints on the origin of the Mountain Pass ultrapotassic and carbonatite intrusive suite, California.	Journal of Petrology, In press available, 44p.	United States, California	Carbonatite
	Abstract: Rare earth element (REE) ore-bearing carbonatite dikes and a stock at Mountain Pass, California, are spatially associated with a suite of ultrapotassic plutonic rocks, and it has been proposed that the two are genetically related. This hypothesis is problematic, given that existing geochronological constraints indicate that the carbonatite is ?15-25 Myr younger than the ultrapotassic rocks, requiring alternative models for the formation of the REE ore-bearing carbonatite during a separate event and/or via a different mechanism. New laser ablation split-stream inductively coupled plasma mass spectrometry (LASS-ICP-MS) petrochronological data from ultrapotassic intrusive rocks from Mountain Pass yield titanite and zircon U-Pb dates from 1429?±?10 to 1385?±?18?Ma, expanding the age range of the ultrapotassic rocks in the complex by ?20 Myr. The ages of the youngest ultrapotassic rocks overlap monazite Th-Pb ages from a carbonatite dike and the main carbonatite ore body (1396?±?16 and 1371?±?10?Ma, respectively). The Hf isotope compositions of zircon in the ultrapotassic rocks are uniform, both within and between samples, with a weighted mean ?Hfi of 1•9?±?0•2 (MSWD?=?0•9), indicating derivation from a common, isotopically homogeneous source. In contrast, in situ Nd isotopic data for titanite in the ultrapotassic rocks are variable (?Ndi?=?-3•5 to -12), suggesting variable contamination by an isotopically enriched source. The most primitive ?Ndi isotopic signatures, however, do overlap ?Ndi from monazite (?Ndi?=?-2•8?±?0•2) and bastnäsite (?Ndi?=?-3•2?±?0•3) in the ore-bearing carbonatite, suggesting derivation from a common source. The data presented here indicate that ultrapotassic magmatism occurred in up to three phases at Mountain Pass (?1425, ?1405, and ?1380?Ma). The latter two stages were coeval with carbonatite magmatism, revealing previously unrecognized synchronicity in ultrapotassic and carbonatite magmatism at Mountain Pass. Despite this temporal overlap, major and trace element geochemical data are inconsistent with derivation of the carbonatite and ultrapotassic rocks by liquid immiscibility or fractional crystallization from common parental magma. Instead, we propose that the carbonatite was generated as a primary melt from the same source as the ultrapotassic rocks, and that although it is unique, the Mountain Pass ultrapotassic and carbonatite suite is broadly similar to other alkaline silicate-carbonatite occurrences in which the two rock types were generated as separate mantle melts.
DM201611-2235 2016	Rough-polished	US bodies to carry out joint research project into trade in rough. DMIA and USKPA	rough-polished.com, Oct. 25, 1/4p.	United States	News item - legal
DM201611-2237 2016	Stockwatch	CMKX CMKM defendant Spooner sentenced in Las Vega. ( I yr home confinement)	Stockwatch, Oct. 6, 2p.	United States, Nevada	News item - CMKM
DM201611-2238 2016	The Israeli Diamond Institute	Father and daughter find 2.03 carat diamond at Crater of Diamonds Park. Article lists other diamonds found during Sept. 2016.	israelidiamond.co.il, Oct. 12, 1p.	United States, Arkansas	News item - Crater of Diamonds
DS201612-2292 2016	Dave, R., Li, A.	Destruction of the Wyoming craton: seismic evidence and geodynamic processes.	Geology, Vol. 44, 11, pp. 883-886.	United States, Wyoming, Colorado Plateau	Wyoming craton - kimberlites
	Abstract: Cratons are old and strong continental cores where the lithosphere is thick and remains largely undeformed for 2-3 b.y. Unlike typical cratons, the Wyoming craton underwent pervasive deformation ca. 80-55 Ma during the Laramide orogeny in the west-central United States, and has been subsequently encroached upon by the Yellowstone hotspot since 2.0 Ma. However, the mechanism for the deformation and the craton-hotspot interaction are not well understood. We present here a three-dimensional shear wave velocity model beneath the Wyoming craton constrained from Rayleigh wave data, which reveal new details about the cratonic lithosphere. The average lithosphere thickness beneath the craton is ?150 km, significantly thinner than a normal cratonic root (>200 km). Continuous low velocities are observed beneath the Yellowstone hotspot and the Cheyenne belt. A low-velocity column is also present in the central-eastern craton at depths of 115-250 km. These low velocities can be explained by hot temperature and partial melting, implying mantle upwelling. A high-velocity anomaly with a dripping shape in central Wyoming extends to 200-250 km depth, indicating mantle downwelling and lithosphere erosion. Our model provides the first seismic evidence for complex small-scale mantle convection beneath the Wyoming craton. The convection probably developed during the subduction of the Farallon plate and has been reinforced by the Yellowstone hotspot. We propose that the combination of flat-slab subduction, small-scale convection, and hotspot activity can lead to massive destruction of a cratonic lithosphere.
DM201612-2379 2016	Diamonds.net	Blue Nile ( retailer) agreed to be acquired by private equity investor.	Diamonds.net, Nov. 7, 1/4p.	United States, Washington	News item - Blue Nile
DM201612-2403 2016	Idex Memo	Will Trump presidency put some sparkle into the American economy?	Idexonline, Nov. 10, 1p.	United States	News item - markets
DS201612-2332 2016	Rudzitis, S., Reid, M.R., Blichert-Toft, J.	On edge melting under the Colorado Plateau margin.	Geochemistry, Geophysics, Geosystems: G3, Vol. 17, 10, 1002/ 2016GC006349.	United States, Colorado Plateau	Melting
	Abstract: Asthenosphere beneath the relatively thin lithosphere of the Basin and Range province appears to be juxtaposed in step-like fashion against the Colorado Plateau's thick lithospheric keel. Primary to near-primary basalts are found above this edge, in the San Francisco-Morman Mountain volcanic fields, north central Arizona, western USA. We show that at least two distinct peridotite-dominated mantle end-members contributed to the origin of the basalts. One has paired Nd and Hf isotopic characteristics that cluster near the mantle array and trace element patterns as expected for melts generated in the asthenosphere, possibly in the presence of garnet. The second has isotopic compositions displaced above the ?Hf - ?Nd mantle array which, together with its particular trace element characteristics, indicate contributions from hydrogenous sediments and/or melt (carbonatite or silicate)-related metasomatism. Melt equilibration temperatures obtained from Si- and Mg-thermobarometry are mostly 1340-1425°C and account for the effects of water (assumed to be 2 wt.%) and estimated CO2 (variable). Melt equilibration depths cluster at the inferred location of the lithosphere-asthenosphere boundary at ?70-75 km beneath the southwestern margin of the Colorado Plateau but scatter to somewhat greater values (?100 km). Melt generation may have initiated in or below the garnet-spinel facies transition zone by edge-driven convection and continued as mantle and/or melts upwelled, assimilating and sometimes equilibrating with shallower contaminated mantle, until melts were finally extracted.
DS201612-2345 2016	Willford, G., Hollabaugh, C.L.	Examination of diamond stability phase mantle indicator minerals from Leucite Hills, Sweetwater County, Wyoming and Crater of Diamonds State Park, Pike Count, Arkansas.	Geological Society of America, Vol. 48, 3, 1p. Abstract	United States, Wyoming, Arkansas	Deposit - Leucite Hills, Diamond State Par
DM201701-0079 2016	Diamonds.net	Alrosa targets U.S., Chin a for large rough sales.	Diamonds.net, Dec. 11, 1/4p.	United States, China	News item - Alrosa
DM201701-0087 2016	Diamonds.net	Trump policies good for diamonds: De Beers CEO. ( taxes)	Diamonds.net, Dec. 21, 1/4p.	United States	News item - De Beers
DS201701-0010 2016	Ford, H.A., Long, M.D., Wirth, E.A.	Mid-lithospheric discontinuities and complex anistropic layering in the mantle lithosphere beneath the Wyoming and Superior provinces.	Journal of Geophysical Research, Vol. 121, 9, pp. 6675-6697.	United States, Canada	Geophysics
	Abstract: The observation of widespread seismic discontinuities within Archean and Proterozoic lithosphere is intriguing, as their presence may shed light on the formation and early evolution of cratons. A clear explanation for the discontinuities, which generally manifest as a sharp decrease in seismic velocity with depth, remains elusive. Recent work has suggested that midlithospheric discontinuities (MLDs) may correspond to a sharp gradient in seismic anisotropy, produced via deformation associated with craton formation. Here we test this hypothesis beneath the Archean Superior and Wyoming Provinces using anisotropic Ps receiver function (RF) analysis to characterize the relationship between MLDs and seismic anisotropy. We computed radial and transverse component RFs for 13 long-running seismic stations. Of these, six stations with particularly clear signals were analyzed using a harmonic regression technique. In agreement with previous studies, we find evidence for multiple MLDs within the cratonic lithosphere of the Wyoming and Superior Provinces. Our harmonic regression results reveal that (1) MLDs can be primarily explained by an isotropic negative velocity gradient, (2) multiple anisotropic boundaries exist within the lithospheric mantle, (3) the isotropic MLD and the anisotropic boundaries do not necessarily occur at the same depths, and (4) the depth and geometry of the anisotropic boundaries vary among stations. We infer that the MLD does not directly correspond to a change in anisotropy within the mantle lithosphere. Furthermore, our results reveal a surprising level of complexity within the cratonic lithospheric mantle, suggesting that the processes responsible for shaping surface geology produce similar structural complexity at depth.
DS201701-0033 2017	Snyder, D.B., Humphreys, E., Pearson, D.G.	Construction and destruction of some North American cratons. Rae, Slave, Wyoming	Tectonophysics, Vol. 694, pp. 464-486.	United States, Canada	Metasomatism
	Abstract: Construction histories of Archean cratons remain poorly understood; their destruction is even less clear because of its rarity, but metasomatic weakening is an essential precursor. By assembling geophysical and geochemical data in 3-D lithosphere models, a clearer understanding of the geometry of major structures within the Rae, Slave and Wyoming cratons of central North America is now possible. Little evidence exists of subducted slab-like geometries similar to modern oceanic lithosphere in these construction histories. Underthrusting and wedging of proto-continental lithosphere is inferred from multiple dipping discontinuities, emphasizing the role of lateral accretion. Archean continental building blocks may resemble the modern lithosphere of oceanic plateau, but they better match the sort of refractory crust expected to have formed at Archean ocean spreading centres. Radiometric dating of mantle xenoliths provides estimates of rock types and ages at depth beneath sparse kimberlite occurrences, and these ages can be correlated to surface rocks. The 3.6-2.6 Ga Rae, Slave and Wyoming cratons stabilized during a granitic bloom at 2.61-2.55 Ga. This stabilization probably represents the final differentiation of early crust into a relatively homogeneous, uniformly thin (35-42 km), tonalite-trondhjemite-granodiorite crust with pyroxenite layers near the Moho atop depleted lithospheric mantle. Peak thermo-tectonic events at 1.86-1.7 Ga broadly metasomatized, mineralized and recrystallized mantle and lower crustal rocks, apparently making mantle peridotite more ‘fertile’ and more conductive by introducing or concentrating sulfides or graphite at 80-120 km depths. This metasomatism may have also weakened the lithosphere or made it more susceptible to tectonic or chemical erosion. Late Cretaceous flattening of Farallon lithosphere that included the Shatsky Rise conjugate appears to have weakened, eroded and displaced the base of the Wyoming craton below 140-160 km. This process replaced the old re-fertilized continental mantle with relatively young depleted oceanic mantle.
DM201701-0160 2016	Stockwatch	CMKK CMKM defendant Turino target of bizarre letters.	stockwatchnews.com, Dec. 20, 1p.	United States	News item - CMKM
DS201702-0205 2017	Clements, B.	The Canadian diamond business: 25 years and going strong.	SEG Newsletter, No. 108, p. 1, 12-18.	Canada, United States	History - exploration, deposits
DM201702-0295 2017	Diamonds.net	Tiffany feeling heat as Trump fires trade-war salvo.	rough-polished.com, Jan. 23, 1/4p.	United States, China	News item - Tiffany
DM201702-0296 2017	Diamonds.net	Blue Nile launches used-diamond business.	rough-polished.com, Jan. 22, 1/4p.	United States, Canada	News item - Blue Nile
DM201702-0265 2017	Even-Zohar, C.	Keeping stock of U.S. Kimberley Process Certificates.	Diamond Intelligence Briefs ( noted only), DIB 884, Jan. 9, 14p.	United States	News item - KP
DS201702-0215 2016	Hopper, E., Fischer, K.M., Rondenay, S., Hawman, R.B., Wagner, L.S.	Imaging crustal structure beneath the southern Appalachians with wavefield migration.	Geophysical Research Letters, Vol. 43, 23, pp. 12,054-62.	United States	Geophysics - seismics
	Abstract: To constrain crustal structures in the southern Appalachians and the suture zone with the Gondwanan-affinity Suwannee terrane, we applied the 2-D generalized Radon transform wavefield migration method to the scattered incident P wavefield recorded by the EarthScope Southeastern Suture of the Appalachian Margin Experiment and adjacent Transportable Array stations. We resolve the root of thickened crust beneath the high topography of the Blue Ridge Mountains and estimate its density contrast with the mantle to be only 104?±?20?kg/m3. A weak velocity contrast across the crustal root Moho is observed and may be related to an ongoing crustal delamination event, possibly contributing to local tectonic rejuvenation. Beneath the Suwannee terrane, we confirm prior observations of a gently south-southeastward dipping crustal suture, indicating the terminal collision of Laurentia and Gondwana involved several hundred kilometers of overthrusting.
DM201703-0489 2017	Diamonds.net	Rio Tinto to close New York marketing base.	Diamonds.net, Jan. 31, 1/4p.	United States	News item - Rio Tinto
DM201703-0525 2017	Rough-polished	USKPA void as legal concern for 12 years - source Even-Zohar	rough-polished.com, Feb. 1, 1/4p.	United States	News item - KP
DM201704-0680 2017	Diamonds.net	Court upholds Leviev win against Julius Klein.	Diamonds.net, March 6, 1/4p.	United States	News item - Leviev
DM201704-0683 2017	Diamonds.net	GIA's James Shigley to get AGS Award.	Diamonds.net, March 7, 1/4p.	United States	News item - Shigley
DM201704-0691 2017	Diamonds.net	A 14 year old boy discovered the largest brown diamond registered in nearly 40 years - a rare 7.44 carat stone names "Superman's diamond". Crater of Diamonds	Diamonds.net, March 20, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DS201704-0625 2016	Gold, D., Doden, A.G., Mbalu-Keswa, C., Tedeski, J.R., Mathur, R.	The Rogue kimberlite dikes in Indiana County, Pennsylvania Part 1. unusual intrusive habit of kimberlite dikes in coal seams.	Guidebook 81st annual field conference of Pennsylvania Geologists, Oct. 6-8, pp. 121-160.	United States, Pennsylvania	Deposit - Rogue
DS201704-0626 2016	Gold, D., Doden, A.G., Mbalu-Keswa, C., Tedeski, J.R., Mathur, R.	Supplement to guidebook: Petrography of the Tanoma and Ernest kimberlites.	Guidebook 81st annual field conference of Pennsylvania Geologists, Oct. 6-8, pp. 263-268.	United States, Pennsylvania	Deposit - Rogue
DM201704-0757 2017	Stockwatch	CMKK defendant Turino seeks 6 year term.	Stockwatchnews.com, March 22, 3p.	United States, Nevada	News item - CMKK
DM201705-0920 2017	Diamonds.net	Equity firm buys major stake in James Allen ( Francisco Partners).	Diamonds.net, April 9, 1/4p.	United States	News item - James Allen
DM201705-0930 2017	Ehud Arye Laniado	March 2017 market report.	info @laniado.com, April 9, 4p.	United States, India, Europe, Israel	News item - markets
DS201705-0835 2017	Howard, J.M.	Crater of Diamonds - The Natural State's Gem of a Park.	lithographie.org, No. 19, pp. 86-93.	United States, Arkansas	Book - Crater of Diamonds
DS201705-0869 2017	Palke, A.C., Renfro, N.D., Berg, R.B.	Melt inclusions in alluvial sapphires from Montana, USA: formation of sapphires as a restitic component of lower crustal melting?	Lithos, Vol. 278-281, pp. 43-53.	United States, Montana	Sapphires
	Abstract: We report here compositions of glassy melt inclusions hosted in sapphires (gem quality corundum) from three alluvial deposits in Montana, USA including the Rock Creek, Dry Cottonwood Creek, and Missouri River deposits. While it is likely that sapphires in these deposits were transported to the surface by Eocene age volcanic events, their ultimate origin is still controversial with many models suggesting the sapphires are xenocrysts with a metamorphic or metasomatic genesis. Melt inclusions are trachytic, dacitic, and rhyolitic in composition. Microscopic observations allow separation between primary and secondary melt inclusions. The primary melt inclusions represent the silicate liquid that was present at the time of sapphire formation and are enriched in volatile components (8-14 wt.%). Secondary melt inclusions analyzed here for Dry Cottonwood Creek and Rock Creek sapphires are relatively volatile depleted and represent the magma that carried the sapphires to the surface. We propose that alluvial Montana sapphires from these deposits formed through a peritectic melting reaction during partial melting of a hydrated plagioclase-rich protolith (e.g. an anorthosite). The heat needed to drive this reaction was likely derived from the intrusion of mantle-derived mafic magmas near the base of the continental lithosphere during rollback of the Farallon slab around 50 Ma. These mafic magmas may have ended up as the ultimate carrier of the sapphires to the surface as evidenced by the French Bar trachybasalt near the Missouri River deposit. Alternatively, the trachytic, rhyolitic, and dacitic secondary melt inclusions at Rock Creek and Dry Cottonwood Creek suggests that the same magmas produced during the partial melting event that generated the sapphires may have also transported them to the surface. Determining the genesis of these deposits will further our understanding of sapphire deposits around the world and may help guide future sapphire prospecting techniques. This work is also important to help reveal the history of mantle-derived mafic magmas as they pass through the continental crust.
DS201705-0887 2017	Wallace, T.C. Jr.	Colorado Diamonds. (Sloan and Kelsey Lake)	lithographie.org, No. 19, pp. 110-113.	United States, Colorado Plateau	Book - history, deposits
DS201706-1066 2017	Chamberlain, K.R., Killian, T.M., Evans, D.A.D., Bleeker, W., Cousens, B.L.	Wyoming on the run - toward final Paleoproterozoic assembly of Laurentia.	Geology Forum Comment, April 1p.	United States	craton
	Abstract: Paleoproterozoic suture zones mark the formation of supercontinent Nuna and provide a record of North America's assembly. Conspicuously young ages (ca. 1.715 Ga) associated with deformation in southeast Wyoming craton argue for a more protracted consolidation of Laurentia, long after peak metamorphism in the Trans-Hudson orogen. Using paleomagnetic data from the newly dated 1899 ± 5 Ma Sourdough mafic dike swarm (Wyoming craton), we compare the relative positions of Wyoming, Superior, and Slave cratons before, during, and after peak metamorphism in the Trans-Hudson orogen. With these constraints, we refine a collisional model for Laurentia that incorporates Wyoming craton after Superior and Slave cratons united, redefining the Paleoproterozoic sutures that bind southern Laurentia.
DM201706-1143 2017	Creamers Mining Weekly	Diamond industry faces headache as key US market takes a knock.	bloomberg.com, May 26, 1p.	United States	News item - markets
DM201706-1172 2017	Fox News	Man finds 2.78 carat diamond at Arkansas state park.	foxnews.com, May 26, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DS201706-1078 2017	Hess, T.L., Carter, M., Sundell, K.	The search for diamonds in the Laramie Mountains of the Wyoming Archean province, USA.	GSA Annual Meeting, 1p. Abstract	United States, Wyoming, Colorado Plateau	deposit - Iron Mountain
	Abstract: Casper College undergraduate students investigated the feasibility of finding hidden kimberlite pipes by means of geological mapping, geophysics, and stream sediment sampling. The Precambrian Laramie Mountains of southeastern Wyoming, locally known as the Iron Mountain Kimberlite district, was chosen based on previous work conducted by the Wyoming State Geological Survey (WSGS), geology of the region, and known kimberlite pipes. Data was collected using micro gravimeter - Scintrex CG-5, magnetometer - G-858 MagMapper, and electrical resistivity - SuperSting R8/IP/SP. Target one was chosen while pre-mapping the area and a topographic bowl like depression was identified. Micro gravimeter data was collected on a 56m transect at 8m intervals. Magnetometer data was collected in an area of 122m by 92m running in a 8m parallel array. Electrical resistivity was collected along a 56m transect at 8m intervals. Target two was chosen because the WSGS identified a regional magnetic anomaly and follow-up research was needed. Microgravimeter data was collected on a 56m transect at 8m intervals. Magnetometer data was collected from an area of 122m by 92m running in an 8m parallel array. Electrical resistivity was collected along a 56m transect at 8m intervals. Two drill site locations were selected based on the geophysical results to prove kimberlite is present at depth. Sediment samples were taken along Middle Sybille Creek and yielded a variety of pink to very deep red and purple colored garnets which have been sent in for EPMA (electron probe micro analyses) testing to determine the garnet-spinel compositions. Once complete the geochemical analyses will help determine if either target has a greater potential to be a diamondiferous kimberlite pipe.
DS201706-1079 2017	Hier-Majumder, S., Tauzin, B.	Pervasive upper mantle melting beneath the western USA.	Earth and Planetary Science Letters, Vol. 463, pp. 25-35.	United States	melting
	Abstract: We report from converted seismic waves, a pervasive seismically anomalous layer above the transition zone beneath the western US. The layer, characterized by an average shear wave speed reduction of 1.6%, spans over an area of ?1.8×106 km2?1.8×106 km2 with thicknesses varying between 25 and 70 km. The location of the layer correlates with the present location of a segment of the Farallon plate. This spatial correlation and the sharp seismic signal atop of the layer indicate that the layer is caused by compositional heterogeneity. Analysis of the seismic signature reveals that the compositional heterogeneity can be ascribed to a small volume of partial melt (0.5 ± 0.2 vol% on average). This article presents the first high resolution map of the melt present within the layer. Despite spatial variations in temperature, the calculated melt volume fraction correlates strongly with the amplitude of P-S conversion throughout the region. Comparing the values of temperature calculated from the seismic signal with available petrological constraints, we infer that melting in the layer is caused by release of volatiles from the subducted Farallon slab. This partially molten zone beneath the western US can sequester at least 1.2×1017 kg1.2×1017 kg of volatiles, and can act as a large regional reservoir of volatile species such as H or C.
DS201706-1082 2017	Hrncir, J., Karlestrom, K., Dahl, P.	Wyoming on the run - toward final Paleoproterozoic assembly of Laurentia.	Geology Forum Comment, April 1p.	United States	craton
	Abstract: Paleoproterozoic suture zones mark the formation of supercontinent Nuna and provide a record of North America's assembly. Conspicuously young ages (ca. 1.715 Ga) associated with deformation in southeast Wyoming craton argue for a more protracted consolidation of Laurentia, long after peak metamorphism in the Trans-Hudson orogen. Using paleomagnetic data from the newly dated 1899 ± 5 Ma Sourdough mafic dike swarm (Wyoming craton), we compare the relative positions of Wyoming, Superior, and Slave cratons before, during, and after peak metamorphism in the Trans-Hudson orogen. With these constraints, we refine a collisional model for Laurentia that incorporates Wyoming craton after Superior and Slave cratons united, redefining the Paleoproterozoic sutures that bind southern Laurentia.
DS201706-1085 2016	Kilian, T.M., Chamberlain, K.R., Evans, D.A.D., Bleeker, W., Cousens, B.L.	Wyoming on the run - toward final Paleoproterozoic assembly of Laurentia.	Geology, Vol. 44, pp. 863-866.	United States	craton
	Abstract: Paleoproterozoic suture zones mark the formation of supercontinent Nuna and provide a record of North America’s assembly. Conspicuously young ages (ca. 1.715 Ga) associated with deformation in southeast Wyoming craton argue for a more protracted consolidation of Laurentia, long after peak metamorphism in the Trans-Hudson orogen. Using paleomagnetic data from the newly dated 1899 ± 5 Ma Sourdough mafic dike swarm (Wyoming craton), we compare the relative positions of Wyoming, Superior, and Slave cratons before, during, and after peak metamorphism in the Trans-Hudson orogen. With these constraints, we refine a collisional model for Laurentia that incorporates Wyoming craton after Superior and Slave cratons united, redefining the Paleoproterozoic sutures that bind southern Laurentia.
DS201706-1090 2017	Levin, V., Servali, A., VanTongeren, J., Menke, W., Darbyshire, F.	Crust-mantle boundary in eastern North America, from the (oldest) craton to the (youngest) rift.	Geological Society of America, SPE 526 pp. 107-132.	United States	craton
	Abstract: The North American continent consists of a set of Archean cratons, Proterozoic orogenic belts, and a sequence of Phanerozoic accreted terranes. We present an ~1250-km-long seismological profile that crosses the Superior craton, Grenville Province, and Appalachian domains, with the goal of documenting the thickness, internal properties, and the nature of the lower boundary of the North American crust using uniform procedures for data selection, preparation, and analysis to ensure compatibility of the constraints we derive. Crustal properties show systematic differences between the three major tectonic domains. The Archean Superior Province is characterized by thin crust, sharp Moho, and low values of Vp/Vs ratio. The Proterozoic Grenville Province has some crustal thickness variation, near-uniform values of Vp/Vs, and consistently small values of Moho thickness. Of the three tectonic domains in the region, the Grenville Province has the thickest crust. Vp/Vs ratios are systematically higher than in the Superior Province. Within the Paleozoic Appalachian orogen, all parameters (crustal thickness, Moho thickness, Vp/Vs ratio) vary broadly over distances of 100 km or less, both across the strike and along it. Internal tectonic boundaries of the Appalachians do not appear to have clear signatures in crustal properties. Of the three major tectonic boundaries crossed by our transect, two have clear manifestations in the crustal structure. The Grenville front is associated with a change in crustal thickness and crustal composition (as reflected in Vp/Vs ratios). The Norumbega fault zone is at the apex of the regional thinning of the Appalachian crust. The Appalachian front is not associated with a major change in crustal properties; rather, it coincides with a zone of complex structure resulting from prior tectonic episodes, and thus presents a clear example of tectonic inheritance over successive Wilson cycles.
DS201706-1095 2017	Marshak, S., Domrois, S., Abert, C., Larson, T., Pavlis, G., Hamburger, M., Yang, X., Gilbert, H., Chen, C.	The basement revealed: tectonic insight from a digital elevation model of the Great Unconformity, USA cratonic platform.	Geology, Vol. 45, 5, pp. 391-394.	United States	tectonics - Mid continent
	Abstract: Across much of North America, the contact between Precambrian basement and Paleozoic strata is the Great Unconformity, a surface that represents a >0.4 b.y.-long hiatus. A digital elevation model (DEM) of this surface visually highlights regional-scale variability in the character of basement topography across the United States cratonic platform. Specifically, it delineates Phanerozoic tectonic domains, each characterized by a distinct structural wavelength (horizontal distance between adjacent highs) and/or structural amplitude (vertical distance between adjacent lows and highs). The largest domain, the Midcontinent domain, includes long-wavelength epeirogenic basins and domes, as well as fault-controlled steps. The pronounced change in land-surface elevation at the Rocky Mountain Front coincides with the western edge of the Midcontinent domain on the basement DEM. In the Rocky Mountain and Colorado Plateau domains, west of the Rocky Mountain Front, structural wavelength is significantly shorter and structural amplitude significantly higher than in the Midcontinent domain. The Bordering Basins domain outlines the southern and eastern edges of the Midcontinent domain. As emphasized by the basement DEM, several kilometers of structural relief occur across the boundary between these two domains, even though this boundary does not stand out on ground-surface topography. A plot of epicenters on the basement DEM supports models associating intraplate seismicity with the Midcontinent domain edge. Notably, certain changes in crustal thickness also coincide with distinct changes in basement depth.
DS201706-1099 2017	O'Sullivan, D., Bailey, D.G.	Major and trace element compositions of garnets from New York state kimberlites: a window in the lower crust and upper mantle.	GSA Annual Meeting, 1p. Abstract	United States, New York	deposit - Taughannock Creek, Ithica, Dewitt Reservoir
	Abstract: Kimberlites are unusual igneous rocks that are not only the singular source of gem quality diamonds, but also a source of upper mantle and lower crustal material for scientific study. As kimberlite magmas rise, they disaggregate xenoliths from the surrounding country rocks. One mineral that is commonly picked up and transported to the surface is garnet, and their compositions have been correlated with different mantle conditions and source materials. The goal of our study is to use garnet compositions to characterize the diversity of lithologies sampled by Mesozoic kimberlitic intrusions in New York State. Approximately 90 kimberlitic dikes cut through the Paleozoic sedimentary rocks of central New York State, most clustered around the cities of Ithaca and Syracuse. Samples of garnet-bearing kimberlites were collected from both of these localities (Taughannock Creek, Ithaca and Dewitt Reservoir, Syracuse), in order to compare the garnet populations present to see if the two dikes sampled similar mantle and crustal materials. Garnets were extracted from both dikes, and their bulk compositions were obtained using energy-dispersive, x-ray spectrometry (SEM-EDS). We were able to identify four major compositional groups of garnets: 1) low to moderate Cr pyrope, 2) high Cr pyrope, 3) almandine, and 4) grossular. Samples of each of these were then analyzed for trace element composition by laser ablation, inductively coupled plasma, mass spectrometry (LA-ICP-MS). Both dikes contain macrocrysts of almandine and Cr-bearing pyrope (up to ~ 5 wt. % Cr2O3); garnets with a high grossular component were only found in the Dewitt kimberlite. Based on the classification of Gurney et al. (1984), none of the garnets indicate a high diamond potential for either kimberlite. While the pyrope and almandine macrocrysts in both dikes are broadly similar in composition, sub-populations of garnets can be recognized based on trace element profiles. Preliminary analysis of the data suggests that the kimberlite intrusions in central New York sampled garnets from a heterogeneous mantle source and, in addition, sampled garnets from a Grenvillian lower crust.
DM201706-1240 2017	Stockwatch	CMKM's Edwards looking for out of court deal.	stockwatch.news, May 23, 1p.	United States	News item - CMKM
DS201706-1107 2017	Thorleifson, L.H.	Geological mapping in the US.	GAC annual meeting, 1p. Abstract	United States	map
DS201707-1313 2017	Chakhmouradian, A.R., Cooper, M.A., Reguir, E.P., Moore, M.A.	Carbocernaite from Bear Lodge, Wyoming: crystal chemistry, paragenesis, and rare earth fractionation on a microscale.	American Mineralogist, Vol. 102, pp. 1340-1352.	United States, Wyoming, Colorado Plateau	carbonatite - Bear Lodge
	Abstract: Zoned crystals of carbocernaite occur in hydrothermally reworked burbankite-fluorapatite-bearing calcite carbonatite at Bear Lodge, Wyoming. The mineral is paragenetically associated with pyrite, strontianite, barite, ancylite-(Ce), and late-stage calcite, and is interpreted to have precipitated from sulfate-bearing fluids derived from an external source and enriched in Na, Ca, Sr, Ba, and rare-earth elements (REE) through dissolution of the primary calcite and burbankite. The crystals of carbocernaite show a complex juxtaposition of core-rim, sectoral, and oscillatory zoning patterns arising from significant variations in the content of all major cations, which can be expressed by the empirical formula (Ca0.43–0.91Sr0.40–0.69REE0.18–0.59Na0.18–0.53Ba0–0.08)?1.96–2.00(CO3)2. Interelement correlations indicate that the examined crystals can be viewed as a solid solution between two hypothetical end-members, CaSr(CO3)2 and NaREE(CO3)2, with the most Na-REE-rich areas in pyramidal (morphologically speaking) growth sectors representing a probable new mineral species. Although the Bear Lodge carbocernaite is consistently enriched in light REE relative to heavy REE and Y (chondrite-normalized La/Er = 500–4200), the pyramidal sectors exhibit a greater degree of fractionation between these two groups of elements relative to their associated prismatic sectors. A sample approaching the solid-solution midline [(Ca0.57Na0.42)?0.99(Sr0.50REE0.47Ba0.01)?0.98(CO3)2] was studied by single-crystal X-ray diffraction and shown to have a monoclinic symmetry [space group P11m, a = 6.434(4), b = 7.266(5), c = 5.220(3) Å, ? = 89.979(17)°, Z = 2] as opposed to the orthorhombic symmetry (space group Pb21m) proposed in earlier studies. The symmetry reduction is due to partial cation order in sevenfold-coordinated sites occupied predominantly by Ca and Na, and in tenfold-coordinated sites hosting Sr, REE, and Ba. The ordering also causes splitting of carbonate vibrational modes at 690–740 and 1080–1100 cm?1 in Raman spectra. Using Raman micro-spectroscopy, carbocernaite can be readily distinguished from burbankite- and ancylite-group carbonates characterized by similar energy-dispersive spectra.
DC201707-1525 2017	De Beers Group	US jewellery demand hits US $41 billion high.	De Beers Group of Companies, June 2, 1p.	United States	News item - markets
DM201707-1440 2017	Diamonds.net	Harry Winston spends $ 5.5m on Rockefeller emerald.	Diamonds.net, June 21, 1/4p.	United States	News item - Harry Winston
DM201707-1444 2017	Ehud Arye Laniado	US: a great past, but will it hold the future of diamonds?	[email protected], May 29, 4p.	United States	News item - markets
DM201707-1460 2017	INN Daily	Who will buy the only US rare earth's mine? Molycorp's Mountain Pass	investingnews.com, June 13, 1/4p.	United States, California	News item - Molycorp
DS201707-1348 2017	Marshall, E.W., Lassiter, J.C., Barnes, J.D., Luguet, A., Lissner, M.	Mantle melt production during the 1.4 Ga Laurentian magmatic event: isotopic constraints from Colorado Plateau mantle xenoliths.	Geology, Vol. 45, 6, pp. 519-522.	United States, Colorado Plateau	melting - Navajo Volcanics
	Abstract: Plutons associated with a 1.4 Ga magmatic event intrude across southwestern Laurentia. The tectonic setting of this major magmatic province is poorly understood. Proposed melting models include anorogenic heating from the mantle, continental arc or transpressive orogeny, and anatexis from radiogenic heat buildup in thickened crust. Re-Os analyses of refractory mantle xenoliths from the Navajo volcanic field (NVF; central Colorado Plateau) yield Re depletion ages of 2.1–1.7 Ga, consistent with the age of the overlying Yavapai and Mazatzal crust. However, new Sm-Nd isotope data from clinopyroxene in peridotite xenoliths from NVF diatremes show a subset of xenoliths that plot on a ca. 1.4 Ga isochron, which likely reflects mantle melt production and isotopic resetting at 1.4 Ga. This suggests that Paleoproterozoic subcontinental lithospheric mantle was involved in the 1.4 Ga magmatic event. Our constraints support a subduction model for the generation of the 1.4 Ga granites but are inconsistent with rifting and anorogenic anatexis models, both of which would require removal of ancient lithosphere.
DM201707-1462 2017	Mining.com	Mountain Pass sells for $ 20.5 million. Chinese led consortium.	mining.com, June 16, 1/2p.	United States, California	News item - MPMine Operations LLC
DM201707-1470 2017	Republic of Mining	In US, diamonds are a millenial's best friend.	dailymail.co.uk, June 7, 1p.	United States	News item - markets
DM201707-1486 2017	Rough-polished	Global demand for diamond jewellery grows marginally to $ 80 billion as US consumers make history.	roughpolished.com, June 5, 1/4p.	United States	News item - markets
DS201707-1362 2017	Schulte-Pelkum, V., Mahan, K., Shen, W., Stachnik, J.	The distribution and composition of high velocity lower crust across the continental US: comparison of seismic and xenolith dat a and implications for lithospheric dynamics and history.	Tectonics, in press available	United States	geophysics
	Abstract: The magnetotelluric component of the EarthScope USArray program has covered over 35% of the continental United States. Resistivity tomography models derived from these data image lithospheric structure and provide constraints on the distribution of fluids and melt within the lithosphere. We present a three-dimensional resistivity model of the northwestern United States which provides new insight into the tectonic assembly of western North America from the Archean to present. Comparison with seismic tomography models reveals regions of correlated and anti-correlated resistivity and velocity that help identify thermal and compositional variations within the lithosphere. Recent (Neogene) tectonic features reflected in the model include the subducting Juan de Fuca–Gorda plate which can be traced beneath the forearc to more than 100 km depth, high lithospheric conductivity along the Snake River Plain, and pronounced lower-crustal and upper-mantle conductivity beneath the Basin and Range. The latter is abruptly terminated to the northwest by the Klamath–Blue Mountains Lineament, which we interpret as an important structure during and since the Mesozoic assembly of the region. This boundary is interpreted to separate hot extended lithosphere from colder, less extended lithosphere. The western edge of Proterozoic North America, as indicated by the Cretaceous initial 87Sr/86Sr = 0.706 contour, is clearly reflected in the resistivity model. We further image an Archean crustal block (“Pend Oreille block”) straddling the Washington/Idaho border, which we speculate separated from the Archean Medicine Hat block in the Proterozoic. Finally, in the modern Cascades forearc, the geometry and internal structure of the Eocene Siletz terrane is reflected in the resistivity model. The apparent eastern edge of the Siletz terrane under the Cascades arc suggests that pre-Tertiary rocks fill the Washington and Oregon back-arc.
DM201708-1835 2017	Diamonds.net	Scio Diamond to up synthetics production.	Diamonds.net, July 13, 1/4p.	United States, South Carolina	News item - Scio
DM201708-1850 2017	Idex magazine	Growing number of Hispanics changing United States jewelry market.	idex magazine.com, June, pp. 26-37p.	United States	News item - markets
DM201708-1857 2017	JCK	Julius Klein, Lev Leviev and looking at arbitrations… partnership breakup.	jackonline.com, July 6, 1p.	United States	News item - Leviev
DS201708-1575 2017	Levin, V., Servali, A., VanTongeren, J., Menke, W., Darbyshire, F.	Crust mantle boundary in eastern North America, from the (oldest) craton to the (youngest) rift.	Geological Society of London, Chapter 6, pp. 107-132.	United States, Canada	tectonics
	Abstract: The North American continent consists of a set of Archean cratons, Proterozoic orogenic belts, and a Sequence of Phanerozoic accreted terranes. We present an ~1250-km-long seismological profile that crosses the Superior craton, Grenville Province, and Appalachian domains, with the goal of documenting the thickness, internal properties, and the nature of the lower boundary of the North American crust using uniform procedures for data selection, preparation, and analysis to ensure compatibility of the constraints we derive. Crustal properties show systematic differences between the three major tectonic domains. The Archean Superior Province is characterized by thin crust, sharp Moho, and low values of Vp/Vs ratio. The Proterozoic Grenville Province has some crustal thickness variation, near-uniform values of Vp/Vs, and consistently small values of Moho thickness. Of the three tectonic domains in the region, the Grenville Province has the thickest crust. Vp/Vs ratios are systematically higher than in the Superior Province. Within the Paleozoic Appalachian orogen, all parameters (crustal thickness, Moho thickness, Vp/Vs ratio) vary broadly over distances of 100 km or less, both across the strike and along it. Internal tectonic boundaries of the Appalachians do not appear to have clear signatures in crustal properties. Of the three major tectonic boundaries crossed by our transect, two have clear manifestations in the crustal structure. The Grenville front is associated with a change in crustal thickness and crustal composition (as reflected in Vp/Vs ratios). The Norumbega fault zone is at the apex of the regional thinning of the Appalachian crust. The Appalachian front is not associated with a major change in crustal properties; rather, it coincides with a zone of complex structure resulting from prior tectonic episodes, and thus presents a clear example of tectonic inheritance over successive Wilson cycles.
DS201708-1729 2017	Parks, B.	Deciphering the composition and structure of Wyoming craton mantle lithosphere: insights from peridotite xenoliths.	11th. International Kimberlite Conference, Oral	United States, Wyoming	peridotite
DM201708-1866 2017	Republic of Mining	Americans buying fewer gems puts the hurt on Diamond Hub Antwerp.	bloomberg.com, July 13, 1p.	United States, Europe, Belgium	News item - markets
DS201708-1767 2017	Snyder, D.	Construction and destruction of some North American cratons.	11th. International Kimberlite Conference, Oral	United States, Canada	cratons
	Abstract: Construction histories of Archean cratons remain poorly understood; their destruction is even less clear because of its rarity, but metasomatic weakening is an essential precursor. By assembling geophysical and geochemical data in 3-D lithosphere models, a clearer understanding of the geometry of major structures within the Rae, Slave and Wyoming cratons of central North America is now possible. Little evidence exists of subducted slab-like geometries similar to modern oceanic lithosphere in these construction histories. Underthrusting and wedging of proto-continental lithosphere is inferred from multiple dipping discontinuities, emphasizing the role of lateral accretion. Archean continental building blocks may resemble the modern lithosphere of oceanic plateau, but they better match the sort of refractory crust expected to have formed at Archean ocean spreading centres. Radiometric dating of mantle xenoliths provides estimates of rock types and ages at depth beneath sparse kimberlite occurrences, and these ages can be correlated to surface rocks. The 3.6–2.6 Ga Rae, Slave and Wyoming cratons stabilized during a granitic bloom at 2.61–2.55 Ga. This stabilization probably represents the final differentiation of early crust into a relatively homogeneous, uniformly thin (35–42 km), tonalite-trondhjemite-granodiorite crust with pyroxenite layers near the Moho atop depleted lithospheric mantle. Peak thermo-tectonic events at 1.86–1.7 Ga broadly metasomatized, mineralized and recrystallized mantle and lower crustal rocks, apparently making mantle peridotite more ‘fertile’ and more conductive by introducing or concentrating sulfides or graphite at 80–120 km depths. This metasomatism may have also weakened the lithosphere or made it more susceptible to tectonic or chemical erosion. Late Cretaceous flattening of Farallon lithosphere that included the Shatsky Rise conjugate appears to have weakened, eroded and displaced the base of the Wyoming craton below 140–160 km. This process replaced the old re-fertilized continental mantle with relatively young depleted oceanic mantle.
DS201708-1581 2017	Van Rythoven, A.D., Schulze, D.J., Hauri, E.H., Wang, J., Shirey, S.	Intra-crystal co-variations of carbon isotopes and nitrogen contents in diamond from three north american cratons. A54 south ( Diavik) Slave craton; Lynx dike Superior craton ; Kelsey Lake Wyoming craton	Chemical Geology, in press available 54p.	Canada, Northwest Territories, Quebec, United States, Colorado	deposit, A54, Lynx, Kelsey Lake
	Abstract: Eighteen diamond samples from the A154 South kimberlite pipe (Diavik Mine), Slave Craton, Northwest Territories (Canada); sixteen diamond samples from the Lynx kimberlite dyke, Superior Craton, Quebec (Canada) and twelve diamond samples from the Kelsey Lake kimberlite pipe, Wyoming Craton, Colorado (USA), were cut through the core-zones, polished, imaged by cathodoluminescence (CL), and analyzed by secondary ion mass spectrometry (SIMS) for carbon isotope composition and nitrogen abundance. Twenty Kelsey Lake diamond plates, including the twelve crystals analyzed by SIMS, were analyzed by Fourier transform infrared spectrometry (FTIR) for nitrogen concentration and aggregation state. Diamond samples from Diavik and Kelsey Lake have average ?13CPDB and nitrogen contents (atomic ppm) similar to those found by earlier studies: averaging between ? 3.9‰ and 486 ppm, and ? 7‰ and 308 ppm, respectively. Samples from the Lynx dyke, investigated for the first time, are substantially different, having ?13C = ?1.2‰ and nitrogen content = 32 ppm (averages). All three localities have examples of significant variations in nitrogen content (> 100 ppm) within single stones. Carbon isotope variation within individual stones is relatively minor (< 2‰). In terms of nitrogen aggregation, samples from the Kelsey Lake kimberlite are dominated by zones of Type IaA, but mixed-type and Type IaB (less common) stones also occur. For the majority of samples, overall intra-diamond zonations of nitrogen abundances and carbon isotope ratios are not in agreement with modeled trends for single-event Rayleigh fractionation of diamond from fluid under nitrogen-compatible conditions at 1100 °C. The involvement of fluids from subducted crustal reservoirs with exceptionally light, and in the case of Lynx samples, exceptionally heavy ?13CPDB values is necessary to explain the observed growth histories of all the samples studied here.
DS201708-1793 2017	Xu, J.	Magma mingling at the Menominee pipe, USA? Contributions from texture and chemistry.	11th. International Kimberlite Conference, Poster	United States, Michigan	deposit - Menominee
DS201709-1951 2017	Andersen, A.K., Clark, J.G., Larson, P.B., Donovan, J.J.	REE fractionation, mineral speciation, and supergene enrichment of the Bear Lodge carbonatites, Wyoming, USA.	Ore Geology Reviews, Vol. 89, pp. 780-807.	United States, Wyoming	carbonatite - Bear Lodge
	Abstract: The Eocene (ca. 55–38 Ma) Bear Lodge alkaline complex in the northern Black Hills region of northeastern Wyoming (USA) is host to stockwork-style carbonatite dikes and veins with high concentrations of rare earth elements (e.g., La: 4140–21000 ppm, Ce: 9220–35800 ppm, Nd: 4800–13900 ppm). The central carbonatite dike swarm is characterized by zones of variable REE content, with peripheral zones enriched in HREE including yttrium. The principle REE-bearing phases in unoxidized carbonatite are ancylite and carbocernaite, with subordinate monazite, fluorapatite, burbankite, and Ca-REE fluorocarbonates. In oxidized carbonatite, REE are hosted primarily by Ca-REE fluorocarbonates (bastnäsite, parisite, synchysite, and mixed varieties), with lesser REE phosphates (rhabdophane and monazite), fluorapatite, and cerianite. REE abundances were substantially upgraded (e.g., La: 54500–66800 ppm, Ce: 11500–92100 ppm, Nd: 4740–31200 ppm) in carbonatite that was altered by oxidizing hydrothermal and supergene processes. Vertical, near surface increases in REE concentrations correlate with replacement of REE(±Sr,Ca,Na,Ba) carbonate minerals by Ca-REE fluorocarbonate minerals, dissolution of matrix calcite, development of Fe- and Mn-rich gossan, crystallization of cerianite and accompanying negative Ce anomalies in secondary fluorocarbonates and phosphates, and increasing ?18O values. These vertical changes demonstrate the importance of oxidizing meteoric water during the most recent modifications to the carbonatite stockwork. Scanning electron microscopy, energy dispersive spectroscopy, and electron probe microanalysis were used to investigate variations in mineral chemistry controlling the lateral complex-wide geochemical heterogeneity. HREE-enrichment in some peripheral zones can be attributed to an increase in the abundance of secondary REE phosphates (rhabdophane group, monazite, and fluorapatite), while HREE-enrichment in other zones is a result of HREE substitution in the otherwise LREE-selective fluorocarbonate minerals. Microprobe analyses show that HREE substitution is most pronounced in Ca-rich fluorocarbonates (parisite, synchysite, and mixed syntaxial varieties). Peripheral, late-stage HREE-enrichment is attributed to: 1) fractionation during early crystallization of LREE selective minerals, such as ancylite, carbocernaite, and Ca-REE fluorocarbonates in the central Bull Hill dike swarm, 2) REE liberated during breakdown of primary calcite and apatite with higher HREE/LREE ratios, and 3) differential transport of REE in fluids with higher PO43?/CO32? and F?/CO32? ratios, leading to phosphate and pseudomorphic fluorocarbonate mineralization. Supergene weathering processes were important at the stratigraphically highest peripheral REE occurrence, which consists of fine, acicular monazite, jarosite, rutile/pseudorutile, barite, and plumbopyrochlore, an assemblage mineralogically similar to carbonatite laterites in tropical regions.
DM201709-2099 2017	Diamonds.net	Shigley, Gumuchian and Engel receives AGS honors.	diamonds.net, July 30, 1/4p.	United States	News item - awards
DM201709-2102 2017	Diamonds.net	US sanctions on Russia: diamond impact unclear.	diamonds.net, Aug. 1, 1/4p.	Russia, United States	News item - Alrosa
DM201709-2108 2017	Diamonds.net	Diamond Foundry opens synthetics store ( San Francisco)	diamonds.net, Aug. 17, 1/4p.	United States	News item - Diamond Foundry
DS201709-1998 2017	Henry, H., Afonso, J.C., Satsukawa, T., Griffin, W.L., O'Reilly, S.Y., Kaczmarek, M-A., Tilhac, R., Gregoire, M., Ceuleneer, G.	The unexplored potential impact of pyroxenite layering on upper mantle seismic properties.	Goldschmidt Conference, abstract 1p.	Europe, Spain, United States, California	geophysics - seismics
	Abstract: It is now accepted that significant volumes of pyroxenites are generated in the subduction factory and remain trapped in the mantle. In ophiolites and orogenic massifs the geometry of pyroxenite layers and their relationships with the host peridotite can be observed directly. Since a large part of what is known about the upper mantle structure is derived from the analysis of seismic waves, it is crucial to integrate pyroxenites in the interpretations. We modeled the seismic properties of a peridotitic mantle rich in pyroxenite layers in order to determine the impact of layering on the seimsic properties. To do so, EBSD data on deformed and undeformed pyroxenites from the Cabo Ortegal complex (Spain) and the Trinity ophiolite (California, USA) respectively are combined with either A or B-type olivine fabrics in order to model a realistic pyroxenite-rich upper mantle. Consideration of pyroxeniterich domains within the host mantle wall rock is incorporated in the calculations using the Schoenberg and Muir group theory [1]. This quantification reveals the complex dependence of the seismic signal on the deformational state and relative abundance of each mineral phase. The incorporation of pyroxenites properties into geophysical interpretations in understanding the lithospheric structure of subduction zones will lead to more geologically realistic models.
DS201709-2016 2017	Kjarsgaard, B.A., Heaman, L.M., Sarkar, C., Pearson, D.G.	The North American mid-Cretaceous kimberlite corridor: wet, edge-driven decompression melting of an OIB-type deep mantle source.	Geochemistry, Geophysics, Geosystems: G3, Vol. 18, 7, pp. 2727-2747.	Canada, Somerset Island, Saskatchewan, United States, Kansas	magmatism, convection, diamond genesis
	Abstract: Thirty new high-precision U-Pb perovskite and zircon ages from kimberlites in central North America delineate a corridor of mid-Cretaceous (115–92 Ma) magmatism that extends ?4000 km from Somerset Island in Arctic Canada through central Saskatchewan to Kansas, USA. The least contaminated whole rock Sr, Nd, and Hf isotopic data, coupled with Sr isotopic data from groundmass perovskite indicates an exceptionally limited range in Sr-Nd-Hf isotopic compositions, clustering at the low ?Nd end of the OIB array. These isotopic compositions are distinct from other studied North American kimberlites and point to a sublithospheric source region. This mid-Cretaceous kimberlite magmatism cannot be related to mantle plumes associated with the African or Pacific large low-shear wave velocity province (LLSVP). All three kimberlite fields are adjacent to strongly attenuated lithosphere at the edge of the North American craton. This facilitated edge-driven convection, a top-down driven processes that caused decompression melting of the transition zone or overlying asthenosphere. The inversion of ringwoodite and/or wadsleyite and release of H2O, with subsequent metasomatism and synchronous wet partial melting generates a hot CO2 and H2O-rich protokimberlite melt. Emplacement in the crust is controlled by local lithospheric factors; all three kimberlite fields have mid-Cretaceous age, reactivated major deep-seated structures that facilitated kimberlite melt transit through the lithosphere.
DS201710-2210 2017	Anderson, K.R., Poland, M.P.	Abundant carbon in the mantle beneath Hawaii.	Nature Geoscience, Vol. 10, 9, pp. 704-708.	United States, Hawaii	carbon
	Abstract: Estimates of carbon concentrations in Earth’s mantle vary over more than an order of magnitude, hindering our ability to understand mantle structure and mineralogy, partial melting, and the carbon cycle. CO2 concentrations in mantle-derived magmas supplying hotspot ocean island volcanoes yield our most direct constraints on mantle carbon, but are extensively modified by degassing during ascent. Here we show that undegassed magmatic and mantle carbon concentrations may be estimated in a Bayesian framework using diverse geologic information at an ocean island volcano. Our CO2 concentration estimates do not rely upon complex degassing models, geochemical tracer elements, assumed magma supply rates, or rare undegassed rock samples. Rather, we couple volcanic CO2 emission rates with probabilistic magma supply rates, which are obtained indirectly from magma storage and eruption rates. We estimate that the CO2 content of mantle-derived magma supplying Hawai‘i’s active volcanoes is 0.97?0.19+0.25 wt% -roughly 40% higher than previously believed-and is supplied from a mantle source region with a carbon concentration of 263?62+81?ppm. Our results suggest that mantle plumes and ocean island basalts are carbon-rich. Our data also shed light on helium isotope abundances, CO2/Nb ratios, and may imply higher CO2 emission rates from ocean island volcanoes.
DS201710-2214 2017	Barry, P.H.	Deep mantle: enriched carbon source detected.	Nature Geoscience, Vol. 10, 9, pp. 625-627.	United States, Hawaii	carbon
	Abstract: Estimates of carbon in the deep mantle vary by more than an order of magnitude. Coupled volcanic CO2 emission data and magma supply rates reveal a carbon-rich mantle plume source region beneath Hawai'i with 40% more carbon than previous estimates.
DS201710-2222 2017	Craddock, W.H., Blondes, M.S., DeVera, C.A., Hunt, A.G.	Mantle and crustal gases of the Colorado Plateau: geochemistry, sources, and migration pathways.	Geochimica et Cosmochinica Acta, Vol. 213, pp. 346-374.	United States, Colorado	volatiles
	Abstract: The Colorado Plateau hosts several large accumulations of naturally occurring, non-hydrocarbon gases, including CO2, N2, and the noble gases, making it a good field location to study the fluxes of these gases within the crust and to the atmosphere. In this study, we present a compilation of 1252 published gas-composition measurements. The data reveal at least three natural gas associations in the field area, which are dominated by hydrocarbons, CO2, and N2 + He + Ar, respectively. Most gas accumulations of the region exhibit compositions that are intermediate between the three end members. The first non-hydrocarbon gas association is characterized by very high-purity CO2, in excess of 75 mol% (hereafter, %). Many of these high-purity CO2 fields have recently been well described and interpreted as magmatic in origin. The second non-hydrocarbon gas association is less well described on the Colorado Plateau. It exhibits He concentrations on the order of 1-10%, and centered log ratio biplots show that He occurs proportionally to both N2 and Ar. Overall ratios of N2 to He to Ar are ?100:10:1 and correlation in concentrations of these gases suggests that they have been sourced from the same reservoir and/or by a common process. To complement the analysis of the gas-composition data, stable isotope and noble-gas isotope measurements are compiled or newly reported from 11 representative fields (previously published data from 4 fields and new data from 7 fields). Gas sampled from the Harley Dome gas field in Utah contains nearly pure N2 + He + Ar. The various compositional and stable and noble gas isotopic data for this gas indicate that noble gas molecule/isotope ratios are near crustal radiogenic production values and also suggest a crustal N2 source. Across the field area, most of the high-purity N2 + He + Ar gas accumulations are associated with the mapped surface trace of structures or sutures in the Precambrian basement and are often accumulated in lower parts of the overlying Phanerozoic sedimentary cover. The high-purity gas association mostly occurs in areas interior to the plateau that are characterized by a narrow range of elevated, moderate heat flow values (53-74 mW/m2) in the ancient (1.8-1.6 Ga) basement terranes of the region. Collectively, the geochemical and geological data suggest that (1) the N2 + He + Ar gas association is sourced from a crustal reservoir, (2) the gas association migrates preferentially along structures in the Precambrian basement, and (3) the sourcing process relates to heating of the crust. Prospecting for noble-gas accumulations may target areas with elevated Cenozoic heat flow, ancient crust, and deep crustal structures that focus gas migration. High-purity CO2 gas may also migrate through regional basement structures, however, there is not always a clear spatial association. Rather, CO2 accumulations are more clearly associated with zones of high heat flow (>63 mW/m2) that sit above hot upper mantle and are proximal to Cenozoic volcanic rocks near the plateau margins. These observations are consistent with previous interpretations of a magmatic gas source, which were based on geochemical measurements.
DM201710-2313 2017	Creamers Mining Weekly	Russia's Alrosa to reopen New York trade office.	creamers mining weekly.com, Sept. 29, 1/4p.	United States, New York	News item - Alrosa
DC201710-2458 2017	De Beers Group	De Beers to make largest investment in diamond marketing since 2008.	De Beers Group, Aug. 29, 2p.	United States, China, India	News item - press release
DS201710-2227 2017	Ganey, G.Q., Loso, M.G., Burgess, A.B., Dial, R.J.	The role of microbes in snowmelt and radiative forcing on an an Alaskan icefield. Red algae	Nature Geoscience, Sept. 18, online	United States, Alaska	geomorphology
	Abstract: A lack of liquid water limits life on glaciers worldwide but specialized microbes still colonize these environments. These microbes reduce surface albedo, which, in turn, could lead to warming and enhanced glacier melt. Here we present results from a replicated, controlled field experiment to quantify the impact of microbes on snowmelt in red-snow communities. Addition of nitrogen-phosphorous-potassium fertilizer increased alga cell counts nearly fourfold, to levels similar to nitrogen-phosphorus-enriched lakes; water alone increased counts by half. The manipulated alga abundance explained a third of the observed variability in snowmelt. Using a normalized-difference spectral index we estimated alga abundance from satellite imagery and calculated microbial contribution to snowmelt on an icefield of 1,900?km2. The red-snow area extended over about 700?km2, and in this area we determined that microbial communities were responsible for 17% of the total snowmelt there. Our results support hypotheses that snow-dwelling microbes increase glacier melt directly in a bio-geophysical feedback by lowering albedo and indirectly by exposing low-albedo glacier ice. Radiative forcing due to perennial populations of microbes may match that of non-living particulates at high latitudes. Their contribution to climate warming is likely to grow with increased melt and nutrient input.
DM201710-2364 2017	Lehndorff, B.	Colorado Diamonds: A blast from the past. Kelsey Lake's short but sweet history defied prevailing wisdom. Coopersmith commentary.	Lapidary Journal, Vol. 71, 5, pp. 52-53.	United States, Colorado	News item - Kelsey Lake
DM201710-2419 2017	Rough-polished	President of Alrosa met with representatives of U.S. diamond industry.	roughdiamond, Sept. 28, 1/4p.	Russia, United States	News item - Alrosa
DM201711-2568 2017	DIB	In U.S. Court: Whistleblower accuses PGD of money laundering and tax evasion.	Diamond Intelligence Briefing, No. 891, June 13, 13p.	United States	News item - legal
DM201711-2570 2017	DIB	NY Supreme Court to hear fraud allegations against IGI ( International Gemological Laboratories) * corrected version	Diamond Intelligence Briefing, No. 893, Oct, 1, 13p.	United States	News item - legal
DS201711-2514 2017	Gonzalez-Jimenez, J.M., Camprubi, A., Colas, V., Griffin, W.L., Proenza, J.A., O'Reilly, S.Y., Centeno-Garcia, El., Garcia-Casco, A., Belousova, E., Talavera, C., Farre-de-Pablo, J., Satsukawa, T.	The recycling of chromitites in ophiolites from southwestern North America. ( Baja)	Lithos, in press available, 52p.	United States, California	chromitites
	Abstract: Podiform chromitites occur in mantle peridotites of the Late Triassic Puerto Nuevo Ophiolite, Baja California Sur State, Mexico. These are high-Cr chromitites [Cr# (Cr/Cr + Al atomic ratio = 0.61-0.69)] that contain a range of minor- and trace-elements and show whole-rock enrichment in IPGE (Os, Ir, Ru). That are similar to those of high-Cr ophiolitic chromitites crystallised from melts similar to high-Mg island-arc tholeiites (IAT) and boninites in supra-subduction-zone mantle wedges. Crystallisation of these chromitites from S-undersaturated melts is consistent with the presence of abundant inclusions of platinum-group minerals (PGM) such as laurite (RuS2)-erlichmanite (OsS2), osmium and irarsite (IrAsS) in chromite, that yield TMA ? TRD model ages peaking at ~ 325 Ma. Thirty-three xenocrystic zircons recovered from mineral concentrates of these chromitites yield ages (2263 ± 44 Ma to 278 ± 4 Ma) and Hf-O compositions [?Hf(t) = ? 18.7 to + 9.1 and 18O values < 12.4‰] that broadly match those of zircons reported in nearby exposed crustal blocks of southwestern North America. We interpret these chromitite zircons as remnants of partly digested continental crust or continent-derived sediments on oceanic crust delivered into the mantle via subduction. They were captured by the parental melts of the chromitites when the latter formed in a supra-subduction zone mantle wedge polluted with crustal material. In addition, the Puerto Nuevo chromites have clinopyroxene lamellae with preferred crystallographic orientation, which we interpret as evidence that chromitites have experienced high-temperature and ultra high-pressure conditions (< 12 GPa and ~ 1600 °C). We propose a tectonic scenario that involves the formation of chromitite in the supra-subduction zone mantle wedge underlying the Vizcaino intra-oceanic arc ca. 250 Ma ago, deep-mantle recycling, and subsequent diapiric exhumation in the intra-oceanic basin (the San Hipólito marginal sea) generated during an extensional stage of the Vizcaino intra-oceanic arc ca. 221 Ma ago. The TRD ages at ~ 325 Ma record a partial melting event in the mantle prior to the construction of the Vizcaino intra-oceanic arc, which is probably related to the Permian continental subduction, dated at ~ 311 Ma.
DS201712-2679 2018	Chen, C., Hersh, G., Fischer, K.M., Andronicos, C.L., Pavlis, G.L., Hamburger, M.W., Marshak, S., Larson, T., Yang, X.	Lithospheric discontinuities beneath the U.S. Midcontinent - signatures of Proterozoic terrane accretion and failed rifting.	Earth and Planetary Science Letters, Vol. 481, pp. 223-235.	United States, Illinois, Indiana, Kentucky	geophysics - seismics Reelfoot Rift
	Abstract: Seismic discontinuities between the Moho and the inferred lithosphere-asthenosphere boundary (LAB) are known as mid-lithospheric discontinuities (MLDs) and have been ascribed to a variety of phenomena that are critical to understanding lithospheric growth and evolution. In this study, we used S-to-P converted waves recorded by the USArray Transportable Array and the OIINK (Ozarks-Illinois-Indiana-Kentucky) Flexible Array to investigate lithospheric structure beneath the central U.S. This region, a portion of North America's cratonic platform, provides an opportunity to explore how terrane accretion, cratonization, and subsequent rifting may have influenced lithospheric structure. The 3D common conversion point (CCP) volume produced by stacking back-projected Sp receiver functions reveals a general absence of negative converted phases at the depths of the LAB across much of the central U.S. This observation suggests a gradual velocity decrease between the lithosphere and asthenosphere. Within the lithosphere, the CCP stacks display negative arrivals at depths between 65 km and 125 km. We interpret these as MLDs resulting from the top of a layer of crystallized melts (sill-like igneous intrusions) or otherwise chemically modified lithosphere that is enriched in water and/or hydrous minerals. Chemical modification in this manner would cause a weak layer in the lithosphere that marks the MLDs. The depth and amplitude of negative MLD phases vary significantly both within and between the physiographic provinces of the midcontinent. Double, or overlapping, MLDs can be seen along Precambrian terrane boundaries and appear to result from stacked or imbricated lithospheric blocks. A prominent negative Sp phase can be clearly identified at 80 km depth within the Reelfoot Rift. This arrival aligns with the top of a zone of low shear-wave velocities, which suggests that it marks an unusually shallow seismic LAB for the midcontinent. This boundary would correspond to the top of a region of mechanically and chemically rejuvenated mantle that was likely emplaced during late Precambrian/early Cambrian rifting. These observations suggest that the lithospheric structure beneath the Reelfoot Rift may be an example of a global phenomenon in which MLDs act as weak zones that facilitate the removal of cratonic lithosphere that lies beneath.
DM201712-2800 2017	Ehud Arye Laniado	Diamond portrait: Charles Tiffany	info@ laniado.com, Nov. 22, 3p.	United States	News item - Tiffany
DM201712-2816 2017	Mining Magazine	Rare earths a reality in Kentucky.. From coal.	mining magazine.com, Nov. 27, 1/4p.	United States, Kentucky	News item - REE
DS201712-2729 2018	Shavers, E.J., Ghulam, A., Encarnacion, J.	Surface alteration of a melelitite-clan carbonatite and the potential for remote carbonatite detection. Avon	Ore Geology Reviews, Vol. 92, pp. 19-28.	United States, Missouri	carbonatite
DM201801-0112 2017	Diamonds.net	Diamond exporters eye gains from US tax reforms	diamonds.net, Dec. 11, 1/4p.	United States	News item - legal
DM201801-0123 2017	Ehud Arye Laniado	Portrait: Robert Shipley Sr. GIA	info @laniado.com, Dec. 20, 3p.	United States	News item - GIA
DS201801-0048 2017	Polak, L., Ackerman, L., Rapprich, V., Magna, T.	Platinum group element and rhenium osmium geochemistry of selected carbonatites from India, USA and East africa.	Carbonatite-alkaline rocks and associated mineral deposits , Dec. 8-11, abstract p. 22-23.	India, United States, Africa, East Africa	carbonatites
	Abstract: Carbonatites and associated alkaline silicate rocks might have potential economic impact for a large variety of metals such as Cu, Ni, Fe and platinum-group elements (PGE - Os, Ir, Ru, Pd, Pt) as it is demonstrated in South Africa (Phalaborwa; Taylor et al. 2009) or Brazil (Ipanema; Fontana 2006). In addition, determined PGE contents along with Re-Os isotopic compositions may also provide important information about PGE fractionation during the genesis of upper mantle-derived carbonatitic melts and nature of their sources. Nevertheless, the existing PGE data for carbonatites are extremely rare, limited mostly to Chinese localities and they are not paralleled by Re-Os isotopic data (Xu et al. 2008). Therefore, in this study, we present the first complete PGE datasets together with Re-Os determinations for a suite of selected carbonatite bodies worldwide. We have chosen eight carbonatite sites with different alkaline rock association, age and geotectonic position. Among these, the youngest samples are from East African rift system and include Oldoinyo Dili, Tanzania with an age spanning from ~0 to 45 Ma; same as Tororo and Sukulu in Uganda (Woolley and Kjarsgaard 2008). These carbonatites are in association with pyroxenites and nepheline syenites. Another young carbonatitic complex is Amba Dongar in west India with Cretaceous age of ~65 Ma associated with alkaline volcanic rocks such as trachybasalts within Deccan Traps (Sukheswala and Udas 1963). Proterozoic bodies are represented by Iron Hill, USA carbonatites associated with pyroxenite, melitolite and ijolite with age ranging from ~520 to 580 Ma (Nash 1972). These carbonatites are famous for their intensive and varied fenitization. Last and the oldest carbonatites in this study comes from Samalpatti and Sevattur, South India having the age of ~800 Ma (Schleicher et al. 1997) and outcropping as small bodies within alkaline rocks such as pyroxenite, syenite and gabbro. The PGE concentrations and Re-Os isotopic ratios were determined by standard methods consisting of decarbonatization using HCl, decomposition of samples in Carius Tubes in the presence of reverse aqua regia and spikes (isotopic dilution), separation of Os by CHCl3 followed by N-TIMS measurements and Ir, Ru, Pd, Pt, Re isolation by anion exchange chromatography followed by ICP-MS measurements. All analysed carbonatites exhibit extremely low PGE contents (? PGE up to 1 ppb), even in the samples with high S contents (up to 1.5 wt. %). Such values are much lower than other determined so far for upper mantle-derived melts such as basalts, komatiites, etc. (Day et al. 2016). Such signatures indicate very low partitioning of PGE into carbonatitic melts and/or early separation of PGE-bearing fraction. Elements from iridium-group I-PGE; Os, Ir and Ru; mostly < 0.1 ppb) are distinctly lower compared to palladiumgroup elements and Re (PPGE; Pt, Pd, Re; mostly > 0.1 ppb) with some rocks being largely enriched in Re (up to ~6 ppb). Most of the analysed carbonatites exhibit progressive enrichment from Os to Re and consequently, PdN/ReN < 0.1 except south India carbonatites and associated alkaline rocks (> 0.30). Rocks analysed so far for Os have OsN/IrN up to 6.2 that might suggest that the carbonatites might concentrate Os over Ir. The highest HSEtot contents have been found in Mg-Cr-rich silicocarbonatites from South India (up to 40 ppb) and taking into account their only slightly radiogenic 187Os/188Os ratios (0.14-0.57), these rocks represents mixture of CO2-rich alkaline mantle melts and country rocks. Very high concentrations of HSE have been also found in magnetite separated from Fe-carbonatite from Amba Dongar, India (0.2-0.5 ppb of I-PGE and 0.9-9 ppb of P-PGE). The 187Os/188Os ratios determined so far for carbonatites from South India vary from 0.24 to 6.5 and calculated ?Os values range from +100 up to +5000. Such wide range of values suggest extremely heterogenous source of the melts and/or possible contamination by 187Os-rich crustal materials.
DS201801-0061 2018	Shavers, E.J., Ghulam, A., Encarnacion, J.	Surface alteration of a melilitite clan carbonatite and the potential for remote carbonatite detection.	Ore Geology Reviews, Vol. 92, pp. 19-28.	United States, Missouri	deposit - Avon
	Abstract: The varied lithologic facies and mineralogy resulting from emplacement of syngenetic alkaline, ultramafic and carbonatite (AUC) intrusions are made more diverse by variable weathering and alteration. Ultramafic-carbonatite intrusive complexes are a source for many valuable minerals including diamonds and rare earth element minerals. The intrusive bodies are often difficult to detect in the field due to their paucity, weathering, vegetation, and, in some instances, similarity to country rock, especially in the case of carbonatites among sedimentary carbonates. Remote spectroscopic detection is used extensively for geologic mapping yet has not been applied to differentiating sedimentary and igneous carbonate weathering profiles. Here we document the alteration mineralogy of a newly authenticated melilitite-clan carbonatite occurrence in the Avon Volcanic District in southeast Missouri, USA. The presence of lizardite, vermiculite, phlogopite, and andradite in the weathered crust of calcic and dolomitic carbonatites differentiate them from sedimentary dolomites. We apply field and laboratory spectral measurements to determine the feasibility of humid region AUC remote sensing and classification. Automated humid region detection and classification of carbonatites among sedimentary carbonates is shown to be possible using ratios of absorption features in the 2000-2400?nm range as well as features centered near 680, 900, and 1100?nm due transition metal charge transfer and crystal field splitting in garnet, sheet-silicates, and spinel.
DM201802-0336 2018	Kalinowski, T.	Sweetgrass diamonds? Maybe, but don't count on it. Pearson and Banas explain.	medicinehat news.com, Jan. 5, 1p.	United States, Montana, Canada, Alberta	News item - Sweetgrass Hills
DS201802-0264 2018	Shavers, E.J., Ghulam, A., Encaracion, J.	Surface alteration of a melilitite clan carbonatite and the potential for remote carbonatite detection.	Ore Geology Reviews, Vol. 92, pp. 19-28.	United States, Missouri	deposit - Avon
	Abstract: The varied lithologic facies and mineralogy resulting from emplacement of syngenetic alkaline, ultramafic and carbonatite (AUC) intrusions are made more diverse by variable weathering and alteration. Ultramafic-carbonatite intrusive complexes are a source for many valuable minerals including diamonds and rare earth element minerals. The intrusive bodies are often difficult to detect in the field due to their paucity, weathering, vegetation, and, in some instances, similarity to country rock, especially in the case of carbonatites among sedimentary carbonates. Remote spectroscopic detection is used extensively for geologic mapping yet has not been applied to differentiating sedimentary and igneous carbonate weathering profiles. Here we document the alteration mineralogy of a newly authenticated melilitite-clan carbonatite occurrence in the Avon Volcanic District in southeast Missouri, USA. The presence of lizardite, vermiculite, phlogopite, and andradite in the weathered crust of calcic and dolomitic carbonatites differentiate them from sedimentary dolomites. We apply field and laboratory spectral measurements to determine the feasibility of humid region AUC remote sensing and classification. Automated humid region detection and classification of carbonatites among sedimentary carbonates is shown to be possible using ratios of absorption features in the 2000-2400?nm range as well as features centered near 680, 900, and 1100?nm due transition metal charge transfer and crystal field splitting in garnet, sheet-silicates, and spinel.
DM201803-0532 2018	Ehud Arye Laniado	Portrait of William Goldberg.	[email protected], Feb. 8, 2p.	United States	News item - Goldberg
DS201803-0464 2017	Marshall, E.W., Barnes, J.D., Lassiter, J.C.	The role of serpentinite derived fluids in metasomatism of the Colorado Plateau ( USA) lithospheric mantle.	Geology, Vol. 45, 12, pp. 1103-1106.	United States, Colorado Plateau	subduction
	Abstract: Subducting serpentinized lithosphere has distinct ?D and ?18O values compared to normal mantle. Slab-derived fluids that infiltrate the mantle wedge can alter its oxygen and hydrogen isotope composition, raising or lowering the ?18O and ?D values depending on the nature of the subducted components. Hydrous minerals in peridotite xenoliths from the Colorado Plateau (southwestern USA) have ?D values (up to ?33‰) much higher than average mantle (?80‰), but similar to ?D values of olivine-hosted melt inclusions within arc basalts, suggesting a slab-derived fluid source. Oxygen isotope ratios of olivine from these xenoliths are similar to average mantle, yet display a strong negative correlation with clinopyroxene Ce/Sm, a proxy of metasomatism. This correlation is most simply explained by metasomatism from fluids derived from the serpentinized portion of the Farallon slab. Although ?18O values of mantle minerals span a narrow range, integration of stable isotope data with other geochemical tracers can provide new constraints on modern and ancient subduction-related processes, potentially providing a method for probing Archean lithospheric mantle for evidence of early subduction.
DM201803-0613 2018	The Israeli Diamond Industry	Ehud Laniado analyses global demand trends for jewelry, as well as price trends for diamonds.	israelidiamond.co.il, Feb. 7, 1p.	United States, India, Europe, Israel, Hong Kong	News item - prices
DS201803-0488 2018	Yang, Y-H., Wu, F-Y., Yang, J-H., Mitchell, R.H., Zhao, Z-F., Xie, L-W., Huang, C., Ma, Q., Yang, M., Zhao, H.	U-Pb age determination of schorlomite garnet by laser ablation inductively coupled plasma mass spectrometry. Magnet Cove, Fanshan, Ozernaya, Alno, Prairie Lake	Journal of Analytical At. Spectrometry, Vol. 33, pp. 231-239.	United States, Arkansas, China, Hebei, Russia, Kola Peninsula, Europe, Sweden, Canada, Ontario	geochronology
	Abstract: We report the first U-Pb geochronological investigation of schorlomite garnet from carbonatite and alkaline complexes and demonstrate its applicability for U-Pb age determination using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) due to its relatively high U and Th abundances and negligible common Pb content. The comparative matrix effects of laser ablation of zircon and schorlomite are investigated and demonstrate the necessity of a suitable matrix-matched reference material for schorlomite geochronology. Laser-induced elemental fractional and instrumental mass discrimination were externally-corrected using an in house schorlomite reference material (WS20) for U-Pb geochronology. In order to validate the effectiveness and robustness of our analytical protocol, we demonstrate the veracity of U-Pb age determination for five schorlomite samples from: the Magnet Cove complex, Arkansas (USA); the Fanshan ultrapotassic complex, Hebei (China); the Ozernaya alkaline ultramafic complex, Kola Peninsula (Russia); the Alnö alkaline-rock carbonatite complex (Sweden); and the Prairie Lake carbonatite complex, Ontario (Canada). The schorlomite U-Pb ages range from 96 Ma to 1160 Ma, and are almost identical to ages determined from other accessory minerals in these complexes and support the reliability of our analytical protocol. Schorlomite garnet U-Pb geochronology is considered to be a promising new technique for understanding the genesis of carbonatites, alkaline rocks, and related rare-metal deposits.
DM201804-0800 2018	Ehud Arye Laniado	March 2018 market report.	[email protected], Mar. 26, 3p.	United States, India, Israel,Hong Kong	News item - prices
DM201804-0802 2018	Golan, E.	US diamond trade in 2017: the oddities behind the numbers.	en.israeli diamond.co.il, Mar. 6, 4p.	United States	News item - economics
DS201804-0706 2018	Kehew, A., Curry, B.B.	Quaternary glaciation of the Great Lakes region: process, landforms, sediments and chronology.	Geological Society of America, SPE 530, 244p. $ 60.00	United States	geomorphology
DS201804-0725 2018	Palke, A.C., Wong, J., Verdel, C., Avila, J.N.	A common origin for Thai/Cambodian rubies and blue and violet sapphires from Yogo Gulch, Montana, U.S.A?	American Mineralogist, Vol. 103, pp. 469-479.	United States, Montana	deposit - Yogo Gulch
	Abstract: A wide number of genetic models have been proposed for volcanically transported ruby and sapphire deposits around the world. In this contribution we compare the trace element chemistry, mineral and melt inclusions, and oxygen isotope ratios in blue to reddish-violet sapphires from Yogo Gulch, Montana, U.S.A., with rubies from the Chantaburi-Trat region of Thailand and the Pailin region of Cambodia. The similarities between Thai/Cambodian rubies and Yogo sapphires suggest a common origin for gem corundum from both deposits. Specifically, we advance a model whereby sapphires and rubies formed through a peritectic melting reaction when the lamprophyre or basalts that transported the gem corundum to the surface partially melted Al-rich lower crustal rocks. Furthermore, we suggest the protolith of the rubies and sapphires was an anorthosite or, in the case of Thai/Cambodian rubies, an anorthosite subjected to higher pressures and converted into a garnet-clinopyroxenite. In this model the rubies and sapphires are rightfully considered to be xenocrysts in their host basalts or lamprophyre; however, in this scenario they are not "accidental" xenocrysts but their formation is intimately and directly linked to the magmas that transported them to the surface. The similarities in these gem corundum deposits suggests that the partial melting, non-accidental xenocryst model may be more wide-reaching and globally important than previously realized. Importantly, in both cases the gem corundum has an ostensibly "metamorphic" trace element signature, whereas the presence of silicate melt (or magma) inclusions shows they ought to be considered to be "magmatic" rubies and sapphires. This discrepancy suggests that existing trace element discriminant diagrams intended to separate "metamorphic" from "magmatic" gem corundum ought to be used with caution.
DM201804-0861 2018	Rough-polished	Tiffany's sales rise on recovery in US, China	rough-polished .com, Mar. 19, 1/4p.	United States	News item - Tiffany
DM201805-1062 2018	Ehud Arye Laniado	Diamond portraits: Howard Tracey Hall … HPHT GE	info @laniado.com, Apr. 25. 3p.	United States	News item - history
DM201805-1102 2018	Reuters	Trade war worries diamond industry. China	reuters.com, Apr. 2, 1/4p.	United States, China	News item - economics
DM201805-1152 2018	Stockwatch News	CMKM defendant Edwards seeks to leave jail. Denied	stockwatchnews, Apr. 9, 2p.	United States	News item - CMKM
DM201805-1153 2018	Texakana Gazette	Volcanic rocks prevalent at Crater of Diamonds… very brief note on lamproite.	texakanagazette, Apr. 5, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201805-1162 2018	Times of India	Private company Delgatto Diamond Fund is looking at financing diamond industry ( jewellers etc) infusing $ 100 million in US and India	timesofIndia.com, Apr. 20, 1/4p.	United States, India	News item - Delgatto
DS201805-0994 2018	Zhang, Z., Dueker, K.G., Huang, H-H.	Ps mantle transition zone imaging beneath the Colorado Rocky Mountains: evidence for an upwelling hydrous mantle.	Earth Planetary Science Letters, Vol. 492, pp. 197-205.	United States, Colorado	mantle - discontinuity
	Abstract: We analyze teleseismic P-to-S conversions for high-resolution imaging of the mantle transition zone beneath the Colorado Rocky Mountains using data from a dense PASSCAL seismic broadband deployment. A total of 6,021 P-to-S converted receiver functions are constructed using a multi-channel minimum-phase deconvolution method and migrated using the common converted point technique with the 3-D teleseismic P- and S-wave tomography models of Schmandt and Humphreys (2010). The image finds that the average depths of the 410-km discontinuity (the 410) and 660-km discontinuity (the 660) at and respectively. The peak-to-peak topography of both discontinuities is 33 km and 27 km respectively. Additionally, prominent negative polarity phases are imaged both above and below the 410. To quantify the mean properties of the low-velocity layers about 410 km, we utilize double gradient layer models parameterization to fit the mean receiver function waveform. This waveform fitting is accomplished as a grid-search using anelastic synthetic seismograms. The best-fitting model reveals that the olivine-wadsleyite phase transformation width is 21 km, which is significantly larger than anhydrous mineral physics prediction (4-10 km) (Smyth and Frost, 2002). The findings of a wide olivine-wadsleyite phase transformation and the negative polarity phases above and below the 410, suggest that the mantle, at least in the 350-450 km depth range, is significantly hydrated. Furthermore, a conspicuous negative polarity phase below the 660 is imaged in high velocity region, we speculate the low velocity layer is due to dehydration flux melting in an area of convective downwelling. Our interpretation of these results, in tandem with the tomographic image of a Farallon slab segment at 800 km beneath the region (Schmandt and Humphreys, 2010), is that hydrous and upwelling mantle contributes to the high-standing Colorado Rocky Mountains.
DC201806-1430 2018	ALTR Created Diamonds	ALTR unveils the world's largest pink created diamond.	ALTR Created Diamonds, May 4, 1p.	United States	News item - press release
DM201806-1282 2018	Atlas Obscura	The remains of the first public diamond mine in Arkansas. Photo	atlasobscura.com, May 1, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201806-1304 2018	Creamers Mining Weekly	Alrosa reopens office in world's largest diamond jewellery market. New York	creamers mining weekly.com, May 22, 1/4p.	United States, New York	News item - Alrosa
DM201806-1318 2018	Diamond World Magazine	Americans do not consider diamond created in a factory: only natural diamonds are real.	diamond world magazine.com, May 24, 1/4p.	United States	News item - synthetics
DM201806-1324 2018	Diamonds.net	Buffett store (Borheims) to sell world's largest pink synthetic.	diamonds.net, May 9, 1/4p.	United States	News item - synthetics
DM201806-1342 2018	Financial Post	Tiffany gains lustre on younger clientele. Shares shine.	financialpost, May 24, 1p.	United States	News item - Tiffany
DM201806-1345 2018	Hot Springs Sentinel	Crater of Diamonds offers three diverse trails.	thesentinel.com, May 30, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM201806-1366 2018	Mining.com	Global consumer demand for diamond jewellery hits new record high of $ 82 billion.	mining.com, May 17, 1/4p.	United States	News item - jewellery
DM201806-1383 2018	Reuters	The techno-whiz who grows gem-quality diamonds. Shah	Crainsbusiness, May 3, 1/4p.	United States	News item - synthetics
DM201806-1420 2018	Sand Hills Express	Inside the state park where visitors dig for diamonds.	sandhillsexpress, May 14, 2p.	United States, Arkansas	News item - Crater of Diamonds
DS201806-1262 2018	Zhang, Z., Dueker, K.G., Huang, H-H.	Ps mantle transition zone imaging beneath the Colorado Rocky Mountains: evidence for an upwelling hydrous mantle.	Earth and Planetary Science Letters, Vol. 492, pp. 197-205.	United States, Colorado	geophysics - seismic
	Abstract: We analyze teleseismic P-to-S conversions for high-resolution imaging of the mantle transition zone beneath the Colorado Rocky Mountains using data from a dense PASSCAL seismic broadband deployment. A total of 6,021 P-to-S converted receiver functions are constructed using a multi-channel minimum-phase deconvolution method and migrated using the common converted point technique with the 3-D teleseismic P- and S-wave tomography models of Schmandt and Humphreys (2010). The image finds that the average depths of the 410-km discontinuity (the 410) and 660-km discontinuity (the 660) at and respectively. The peak-to-peak topography of both discontinuities is 33 km and 27 km respectively. Additionally, prominent negative polarity phases are imaged both above and below the 410. To quantify the mean properties of the low-velocity layers about 410 km, we utilize double gradient layer models parameterization to fit the mean receiver function waveform. This waveform fitting is accomplished as a grid-search using anelastic synthetic seismograms. The best-fitting model reveals that the olivine-wadsleyite phase transformation width is 21 km, which is significantly larger than anhydrous mineral physics prediction (4-10 km) (Smyth and Frost, 2002). The findings of a wide olivine-wadsleyite phase transformation and the negative polarity phases above and below the 410, suggest that the mantle, at least in the 350-450 km depth range, is significantly hydrated. Furthermore, a conspicuous negative polarity phase below the 660 is imaged in high velocity region, we speculate the low velocity layer is due to dehydration flux melting in an area of convective downwelling. Our interpretation of these results, in tandem with the tomographic image of a Farallon slab segment at 800 km beneath the region (Schmandt and Humphreys, 2010), is that hydrous and upwelling mantle contributes to the high-standing Colorado Rocky Mountains.
DM201807-1573 2018	Creamers Mining Weekly	US suggests need for broader conflict diamond definition, due diligence for responsible sourcing. KP meeting June 18-22.	creamers mining weekly, June 13, 1/4p.	United States, Global	News item - KP
DM201807-1595 2018	Diamonds.net	Diamond Foundry lauds De Beers synthetics bid.	diamonds.net, June 3, 1/4p.	United States	News item - Diamond Foundry
DM201807-1597 2018	Diamonds.net	GIA to hold synthetics detection seminars.	diamonds.net, June 6, 1/4p.	United States	News item - synthetics
DM201807-1608 2018	Ehud Arye Laniado	Diamond portraits: John Wesley Huddleston. Crater of Diamonds	info @laniado.com, June 6, 3p.	United States, Arkansas	News item - Huddleston
DS201807-1492 2018	GIA	Dr. D. Twitchen ( CVD Element Six) discussion using magnetic resonance and optical techniques to study how defects in diamond affect colour and electrical conductivity. Keynote speaker	GIA Symposium , Oct. 7-9, Carlsbad CA	United States, California	synthetics
DM201807-1613 2018	Idex Magazine	American jobless numbers are down, but wages are static and that's preventing Wide spread diamond jewelry buying.	idexmagazine, June pp. 5-8.	United States	News item - economics
DS201807-1507 2018	Levandowski, W., Herrmann, R.B., Briggs, R., Boyd, O., Gold, R.	An updated stress map of the continental United States reveals heterogeneous intraplate stress. Tectonics	Nature Geoscience, Vol. 11, 6, pp. 433-437.	United States	geodynamics
	Abstract: Knowledge of the state of stress in Earth’s crust is key to understanding the forces and processes responsible for earthquakes. Historically, low rates of natural seismicity in the central and eastern United States have complicated efforts to understand intraplate stress, but recent improvements in seismic networks and the spread of human-induced seismicity have greatly improved data coverage. Here, we compile a nationwide stress map based on formal inversions of focal mechanisms that challenges the idea that deformation in continental interiors is driven primarily by broad, uniform stress fields derived from distant plate boundaries. Despite plate-boundary compression, extension dominates roughly half of the continent, and second-order forces related to lithospheric structure appear to control extension directions. We also show that the states of stress in several active eastern United States seismic zones differ significantly from those of surrounding areas and that these anomalies cannot be explained by transient processes, suggesting that earthquakes are focused by persistent, locally derived sources of stress. Such spatially variable intraplate stress appears to justify the current, spatially variable estimates of seismic hazard. Future work to quantify sources of stress, stressing-rate magnitudes and their relationship with strain and earthquake rates could allow prospective mapping of intraplate hazard.
DM201807-1658 2018	Rough-polished	DPA 'Real is Rare' media campaigns garner 1.5 bn media impressions among US millennials. Cost $ 40 m	rough-polished, June 5, 1/4p.	United States	News item - DPA
DM201807-1667 2018	Rough-polished	KGK Group buys stake in New York based company Unique Settings.	rough-polished, June 9, 1/4p.	India, United States, New York	News item - KGK Diamonds
DM201808-1846 2018	Diamonds.net	GIA grades largest lab grown pink. 5.01 ct	diamonds.net, July 4, 1/4p.	United States, California	News item - synthetics
DM201808-1857 2018	Diamonds.net	New US Federal Trade Commission guidelines still require full disclosure for synthetic diamonds.	diamonds.net, July 27, 1p.	United States	News item - synthetics
DM201808-1863 2018	Ehud Arye Laniado	Diamond portraits: Sidney Thomas Ross. ( jeweler)	info@ehud laniado.com, July 25, 2p.	United States	News item - Ross
DM201808-1867 2018	Idex Memo	FTC's revised guides stoke up flames between natural and synthetic diamond sectors.	idexonline.com, July 26, 1p.	United States	News item - synthetics
DM201808-1895 2018	New York Times	A diamond giant plays up its Russian ties to appeal to Americans. Alrosa and Nyurbinsky mine	nytimes.com, July 10, 6p.	United States, Russia	News item - Alrosa
DM201808-1900 2018	Republic of Mining	Tiffany & Co. has built a secret lab to crush its rivals.	bloomberg.com, July 18, 1p.	United States	News item - Tiffany
DM201808-1902 2018	Reuters	De Beers breaks ground on $ 94 m lab grown diamond plant in Oregon scheduled to produce 0.5 mcts of CVD diamonds for Lightbox jewelery.	reuters.com, June 30, 1/4p.	United States, Oregon	News item - Lightbox
DM201808-1932 2018	Rough-polished	Laurelton Diamonds - polished tender in New York and Antwerp. ( Tiffany)	rough-polished, July 27, 1/4p.	United States, Europe, Belgium	News item - Laurelton
DM201808-1941 2018	Times of India	De Beers sightholders share stage with US based Martin with Rapaport.	indianexpress.com, July 10, 1/4p.	Global, United States	News item - De Beers
DM201808-1943 2018	Toronto Star	Tiffany bets on its new jewelry lab to regain diamond crown.	torontostar.com, July 21, 1p.	United States	News item - Tiffany
DS201809-2027 2018	Gifford, J.N., Mueller, P.A., Foster, D.A., Mogk, D.W.	Extending the realm of Archean crust in the Great Falls tectonic zone: evidence from the Little Rocky Mountains, Montana.	Precambrian Research, Vol. 315, pp. 264-281.	United States, Montana	craton
	Abstract: Two prominent features separate the Archean Wyoming and Hearne cratons: the Paleoproterozoic Great Falls tectonic zone (GFTZ) and the Medicine Hat block (MHB), neither of which is well defined spatially because of Phanerozoic sedimentary cover. Based on limited data, the MHB is thought to be a structurally complex mix of Archean (2.6-3.1?Ga) and Proterozoic (1.75?Ga) crust, but is recognized primarily by its geophysical signature, and its influence on the geochemistry of younger igneous rocks. Similarly, the GFTZ was recognized on the basis of broad differences in geophysical patterns, isopachs of Paleozoic sedimentary sections, and lineaments; however, juvenile arc rocks in the Little Belt Mountains (LBM) and strongly overprinted Archean rocks in southwestern Montana show it to be a dominantly Paleoproterozoic feature. The Little Rocky Mountains (LRM) of Montana provide access to exposures of the northeastern-most Precambrian crust in the MHB-GFTZ region. U/Pb ages of zircons from Precambrian rocks of the LRM range from 2.4 to 3.3?Ga, with most ages between 2.6 and 2.8?Ga. Whole-rock analyses yield Sm-Nd TDM from 3.1 to 4.0?Ga and initial ?Nd(T) values calculated at U-Pb zircon crystallization ages range from ?0.9 to ?10.5, indicating significant contributions from older Archean crust. The high proportion of 2.6-2.8?Ga U/Pb ages differentiates LRM crust from arc-related Paleoproterozoic magmatic rocks exposed in the LBM to the southwest. The age and isotopic composition of the LRM gneisses are similar to crust in the northern Wyoming Province (2.8-2.9?Ga), but Paleoproterozoic K-Ar cooling ages suggest crust in the LRM experienced the Paleoproterozoic metamorphism and deformation that characterizes the GFTZ. Consequently, its history differs markedly from the adjacent Beartooth-Bighorn magmatic zone of the northern Wyoming Province, which does not record Paleoproterozoic tectonism, but has a strong correlation with the Montana metasedimentary terrane that was strongly overprinted during the Paleoproterozoic Great Falls orogeny that defines the GFTZ. The LRM, therefore, likely provides a unique, and perhaps the only, opportunity to characterize Archean crust of the MHB.
DS201809-2080 2018	Renfro, N.D., Palke, A.C., Berg, R.B.	Gemological characterization of sapphires from Yogo Gulch, Montana.	Gems & Gemology, Vol. 54, 2, pp. 184-201.	United States, Montana	deposit - Yogo Gulch
	Abstract: Yogo Gulch in central Montana is one of the most important gem deposits in the United States. Although very little material has been recovered there in recent years, it has produced several million carats of rough sapphire over the course of its history (Voynick, 2001). These stones, known for their vibrant untreated blue color and high clarity, have always commanded a price premium, especially in sizes larger than 0.75 ct. This paper offers a thorough gemological characterization of Yogo sapphire, which may be unfamiliar to many gemologists. Fortunately, Yogo sapphires are unique and experienced gemologists can easily separate them from gem corundum of different geographic origins throughout the world, making it possible to determine the provenance of important stones from this deposit.
DM201809-2224 2018	Rough-polished	WFDB responds to revised Federal Trade Commision guidelines.	rough-polished, July 30, 1/4p.	United States	News item - WFDB
DM201809-2242 2018	Rough-polished	GJEPC to accept any role and shoulder any responsibility that the government gives it. USA markets	rough-polished, Aug. 20, 1/4p.	United States	News item - GJEPC
DM201809-2251 2018	Stockwatch	CMKM defendant Dvorak reaches deal with prosecutors - No one left.	CMKM Diamonds Inc., Aug. 17, 1p.	United States	News item - CMKM
DS201809-2096 2018	Sun, Y., Teng, F.Z., Kuehner, S., Pang, K.N.	Origins of Leucite Hills lamproites constrained by magnesium isotopes.	Goldschmidt Conference, 1p. Abstract	United States, Wyoming	lamproites
	Abstract: Lamproites are commonly found in post-collisional or intracontinental environments and characterized by unique elemental and radiogenic isotopic signatures that signify derivation from the subcontinental lithospheric mantle. An improved understanding on their genesis is important regarding the dynamics of the Earth’s mantle lithosphere, and requires knowledge in identifying source components and magmatic processes. In order to better constrain the mechanism producing the geochemical diversity of lamproites, we measure the elemental and Mg isotopic compositions of a suite of lamproites from the well-known locality Leucite Hills, Wyoming, U.S.A. The two types of lamproites therein, madupitic and phlogopite lamproites, display distinct characteristics in many element and Mg isotope diagrams. These variations cannot be ascribed to crustal contamination, fractional crystallization or source heterogeneity. Instead, the strong correlations between melting-sensitive elemental ratios (e.g., Sm/Yb and La/Yb) and indices of carbonatitic metasomatism (e.g., CaO/Al2O3, Hf/Hf*, and Ti/Ti*) with ?26Mg indicate that variable degrees of partial melting of a common carbonated mantle source have generated the observed geochemical distinctions of the Leucite Hills lamproites. Our study reveals that geochemical variations in a given lamproite suite might have been controlled mainly by the degree of mantle melting.
DS201809-2103 2018	Tschauner, O., Huang, S., Wu, Z., Gtreenberg, E., Prakapenka, V.B.	Ice-VII inclusions in ultradeep diamonds.	Goldschmidt Conference, 1p. Abstract	Africa, South Africa, China, United States, Canada, South America	diamond inclusions
	Abstract: We present the first evidence for inclusions of ice-VII in diamonds from southern Africa, China, North- and South-America [1]. Combining synchrotron X-ray diffraction, - X-ray fluorescence and IR spectroscopy, we show the presence of ice-VII as inclusions in diamonds that have formed at depth > 410 km to about 800 km in the Earth's mantle. What is now crystalline ice-VII, a high pressure polymorph of water-ice, was component of an aqueous fluid entrapped in the diamonds that were growing in the deep mantle. Because of the confinement by the host diamonds, the inclusions retain high pressures. The same holds for inclusions of magnesian calcite, halite, and ilmenite found in the same diamond specimens. These inclusions reflect the presence of aqueous and carbonaceous fluids in the mantle transition zone and the shallow lower mantle. Using their current residual pressures and the equations of state, we can reconstruct their recovery paths [2,3]. Further, we can use the intersection of modelled recovery paths to better constrain the encapsulation pressure and temperature of these inclusions in diamonds.
DM201810-2402 2017	Boyd, W.F.	The Montana Queen .. A Rock Creek Sapphire. A review of North America's largest sapphire producer.	Presentation at the Canadian Gemmological Association , Oct. 20-22, 66 ppts.	United States, Montana	News item - Rock Creek
DM201810-2437 2018	Forbes	What happens when there's too much jewelry inventory? Inventory problems are industry problems. Supply chain incentives.	forbes.com, Aug. 31, 4p.	United States	News item - economics
DS201810-2328 2018	Hopper, E., Fischer, K.M.	The changing face of the lithosphere, asthenosphere boundary: imaging continental scale patterns in upper mantle structure across the contiguous U.S. with Sp converted waves.	Geochemistry, Geophysics, Geosystems, Vol. 19, 8, pp. 2593-2614.	United States	geophysics - seismic
	Abstract: Juxtaposed terranes of highly varied tectonic history make up the contiguous U.S.: the tectonically active western U.S., the largely quiescent Archean and Proterozoic cratons of the central U.S., and the Phanerozoic orogen and rifted margin of the eastern U.S. The transitions between these regions are clearly observed with Sp converted wave images of the uppermost mantle. We use common conversion point stacked Sp waves recorded by EarthScope's Transportable Array and other permanent and temporary broadband stations to image the transition from a strong velocity decrease at the lithosphere?asthenosphere boundary (or LAB) beneath the western U.S. to deeper, less continuous features moving east that largely lie within the lithosphere. Only sparse, localized, weak phases are seen at LAB depths beneath the cratonic interior. Instead, we observe structures within the cratonic lithosphere that are most prominent within the Archean lithosphere of the Superior Craton. The transition from west to east is clearly revealed by cluster analysis, which also shows eastern U.S. mantle velocity gradients as more similar to the western U.S. than the ancient interior, particularly beneath New England and Virginia. In the western U.S., the observed strong LAB indicates a large enough velocity gradient (an average velocity drop of 10?±?4.5% distributed over 30?±?15 km) to imply that melt has ponded beneath the lithosphere.
DM201810-2440 2016	Hsu, T., Lucas, A., McClure, S., Renfro, N., Schumacher, K.	Rock Creek Montana Sapphires: a new age of mining begins.	potentatemining.com, Aug. 19, field report	United States, Montana	News item - Rock Creek
DM201810-2450 2018	JCKnews	Grandmother finds 2.63 ct diamond at Arkansas park. Named it Lichenfels	jckonline.com, Sept. 28, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DS201810-2352 2018	Marshall, E.W., Lasiter, J.C., Barnes, J.D.	On the (mis) behavior of water in the mantle: controls on nominally anhydrous mineral water content in mantle peridotites.	Earth and Planetary Science Letters, Vol. 499, pp. 219-229.	United States, Colorado Plateau	metasomatism
	Abstract: In magmatic settings, water behaves as an incompatible species and should be depleted during melting and enriched during metasomatism. Previous studies have identified correlations between nominally anhydrous mineral (NAM) water content ([H2O]) and indices of metasomatism or melt extraction, seemingly confirming this behavior in the mantle. However in detail, these correlations are ambiguous and do not reflect robust controls on NAM [H2O]. We measured orthopyroxene (opx) and clinopyroxene (cpx) [H2O] in variably hydrated and metasomatized peridotite xenoliths from the Navajo volcanic field (NVF) that sample the Colorado Plateau subcontinental lithospheric mantle (SCLM), an endmember of SCLM hydration and metasomatism. These xenoliths span a wide range of pyroxene [H2O] (opx from 50 to 588 ppm wt. H2O; cpx from 38 to 581 ppm wt. H2O), but NAM [H2O] does not correlate with either indices of melt depletion or metasomatism. Growth of hydrous minerals suggests higher water activity than in anhydrous peridotites, and therefore hydrous-mineral-bearing xenoliths and anhydrous xenoliths should have different NAM [H2O] and water activities. However, when the two groups are compared no significant differences can be found in either NAM [H2O] or water activity. We propose that the high diffusivity of hydrogen in the mantle allows for equilibration of water activity in the mantle over sub-kilometer length scales over geologic time. Such diffusive equilibration reduces water activity variability and results in the blurring and destruction of correlations between NAM [H2O] and indices of metasomatism or melt extraction. As a result of diffusive equilibration of water, there is a large difference in the variability of concentration between NAM [H2O] (spanning ?2 orders of magnitude) and similarly incompatible elements such as Ce in the same peridotites (spanning ?4 orders of magnitude). This difference in behavior explains why H2O/Ce ratios in mantle peridotites are highly variable relative to those of basalts.
DS201810-2393 2018	Zhou, Q., Hu, J., Liu, L., Chaparro, T., Stegman, D.R., Faccenda, M.	Western U.S. seismic anisotropy revealing complex mantle dynamics.	Earth and Planetary Science Letters, Vol. 500, pp. 156-167.	United States	geodynamics
	Abstract: The origin of the complex pattern of SKS splitting over the western United States (U.S.) remains a long-lasting debate, where a model that simultaneously matches the various SKS features is still lacking. Here we present a series of quantitative geodynamic models with data assimilation that systematically evaluate the influence of different lithospheric and mantle structures on mantle flow and seismic anisotropy. These tests reveal a configuration of mantle deformation more complex than ever envisioned before. In particular, we find that both lithospheric thickness variations and toroidal flows around the Juan de Fuca slab modulate flow locally, but their co-existence enhances large-scale mantle deformation below the western U.S. The ancient Farallon slab below the east coast pulls the western U.S. upper mantle eastward, spanning the regionally extensive circular pattern of SKS splitting. The prominent E-W oriented anisotropy pattern within the Pacific Northwest reflects the existence of sustaining eastward intrusion of the hot Pacific oceanic mantle to beneath the continental interior, from within slab tears below Oregon to under the Snake River Plain and the Yellowstone caldera. This work provides an independent support to the formation of intra-plate volcanism due to intruding shallow hot mantle instead of a rising mantle plume.
DM201811-2632 2018	CMKM Diamonds Inc.	CMKM defendant Gutierrez looks to stay out of jail.	stockwatch.com, Oct. 17, 1p.	United States, Nevada	News item - CMKM
DM201811-2633 2018	CNYcentral	Dutchess Meghan Markle sparkles in Herkimer diamonds.	cnycentral.com, Oct. 20, 1p.	United States, New York	News item - Herkimer
DS201811-2562 2018	Craddock, J., Malone, D., Schmitz, M.D., Gifford, J.N.	Strain variations across the Proterozoic Penokean Orogen, USA and Canada. Sudbury impact	Precambrian Research, Vol. 318, pp. 25-69.	United States, Canada	orogeny
	Abstract: Strata in the Huron (2.5-2.0 Ga) and Animikie (2.2-1.85 Ga) basins were deposited on the southern margin of the Archean Superior province. These rocks were deformed during the Penokean orogeny (?1850 Ma) followed by subsequent accretionary orogens to the south at 1750 Ma (Yavapai) and 1630 Ma (Mazatzal). Strain patterns are unique to each orogenic belt with no far-field effect: Archean Wawa terrane rocks in the Penokean foreland preserve deformation associated with Archean accretion with no younger Penokean, Yavapai or Mazatzal strain overprint. The Penokean orogeny deformed Huron-Animikie basin sediments into a north-vergent fold-and-thrust belt with no Yavapai or Mazatzal strain overprint. Yavapai orogen strains (SW-NE margin-parallel shortening) are unique when compared to the younger Mazatzal shortening (N20°W) shortening, with no strain overprint. Penokean deformation is characterized by shortening from the south including uplifted Archean gneisses and a northerly thin-skinned fold-and-thrust belt, with north-vergent nappes and a gently-dipping foreland. Our study of finite and calcite twinning strains (n=60) along (?1500 km) and across (?200 km) the Penokean belt indicate that this orogeny was collisional as layer-parallel shortening axes are parallel across the belt, or parallel to the tectonic transport direction (?N-S). Penokean nappe burial near the margin resulted in vertical shortening strain overprints, some of which are layer-normal. The Sudbury impact layer (1850 Ma) is found across the Animikie basin and provides a widespread deformation marker with many local, unique strain observations. We also report new geochronology (U-Pb zircon and apatite) for the gneiss-mafic dike rocks at Wissota (Chippewa Falls, WI) and Arbutus (Black River Falls, WI) dams, respectively, which bears on Penokean-Yavapai deformation in the Archean Marshfield terrane which was accreted during the Penokean orogen. Pseudotachylite formation was common in the Superior province Archean basement rocks, especially along terrane boundaries reactivated by contemporaneous Penokean, Trans-Hudson, Cape Smith and New Quebec deformation. In the hinterland (south), the younger Yavapai orogen (1750 Ma; n=8) deformation is preserved as margin-parallel horizontal shortening (?SW-NE) in Yavapai crust and up to 200 km to the north in the Penokean thrust belt as a strain and Barrovian metamorphic overprint. Mazatzal deformation (1630 Ma; n=16) is preserved in quartzites on Yavapai and Penokean crust with layer-parallel and layer-normal shortening strains oriented N20°W.
DM201811-2658 2018	Diamonds.net	Charles & Colvard is facing removal from Nasdaq ( due to lack of moissanite for jewellery sales)	diamonds.net, Oct. 17, 1/4p.	United States	News item - Charles & Colvard
DM201811-2665 2018	Ehud Arye Laniado	Diamond portrait: G. Robert Crowningshield. GIA and spectroscope and 4Cs.	[email protected], Oct. 17, 2p.	United States	News item - R. Crowningshield
DS201811-2576 2018	Gura, C., Kempton, P.D., Datta, S.	Geochemistry in the critical zone; limestone shale and kimberlite weathering in the Flint Hills, Kansas. USA.	Geological Society of America Annual Meeting, Vol. 50, 4, 1p. Abstract	United States, Kansas	kimberlite
	Abstract: The Critical Zone is the realm where rocks meet life. This study examines the physicochemical interactions that occur when interbedded limestone-shale systems and kimberlitc eruptive materials weather to form soils. Fast weathering with extensive soil loss has been a major environmental concern in the Flint Hills. Knowledge of soil formation processes, rates of formation and loss and understanding how these processes differ in different systems are critical for managing soil as a resource. The kimberlites of Riley County, KS, are CO2-rich igneous rocks that are high in Mg and Fe; they are compositionally distinct from the Paleozoic limestones and shales found throughout the rest of the region. Bulk composition and mineralogy of the soils overlying these different bedrock types have been analyzed using X-Ray Fluorescence (XRF), X-Ray diffraction of <2mm soil fraction and <2µm soil clay fraction, bulk elemental extraction, and particle size analyses. Results show that the kimberlitic soils have higher concentrations of Fe, Mg, Ca, K and some trace elements (e.g. Ti, Ni, Cu). The weathering products differ mineralogically as well, e.g. lizardite is abundant in kimberlitic soils and absent from the limestone terrane. As a result, kimberlite-sourced soils have significantly different physical properties than the thin limestone-sourced soils surrounding them. Particle size analysis shows that the limestone-shale soils have a higher proportion of silt-sized particles whereas the kimberlitic soils have more clay (10.55% vs. 8.06%) and significantly more sand (36.12% vs. 14.83%). Mineralogy was determined for all <2mm fractions and for some <2µm soil clay fraction to understand the association and mobility of these major and trace elements in the respective soils. Interestingly some of the similarities between the kimberlite and limestone-shale soils suggests that loess/wind-blown sediment is making a significant contribution to the soil profile. Kimberlite-sourced and limestone-shale-sourced soils produce different weathering products and could potentially have agricultural significance in terms of ionic and nutrient mobility.
DM201811-2676 2018	JCK Daily News	De Beers Lightbox brand: early reviews and future plans.	jckonline.com, Oct. 5, 4p.	Global, United States, Oregon	News item - Lightbox
DM201811-2689 2018	Reuters	Diamond trade must reform in face of threat from synthetic stones: U.S.	reuters.com, Oct. 2, 1/2p.	United States	News item - synthetics
DM201811-2697 2018	Rough-polished	U.S. says diamond trade should reform to fend off synthetic threat.	rough-polished.com, Oct. 4, 1/4p.	United States	News item - synthetics
DS201811-2610 2018	Stein, S., Stein, C.A., Elling, R., Kley, J., Keller, G.R., Wysession, M., Rooney, T., Frederiksen, A., Moucha, R.	Insights from North America's failed Midcontinent Rift into the evolution of continental rifts and passive continental margins.	Tectonophysics, Vol. 744, pp. 403-421.	United States	tectonics
	Abstract: Continental rifts evolve along two possible paths. In one, a rift successfully evolves into seafloor spreading, leaving the rift structures buried beneath thick sedimentary and volcanic rocks at a passive continental margin. Alternatively, the rift fails and remains as a fossil feature within a continent. We consider insights into these processes from studies of North America's Midcontinent Rift (MCR). The MCR combines the linear geometry of a rift formed at a plate boundary and the huge igneous rock volume of a Large Igneous Province. The rift is a fault bounded basin filled with volcanics and sediments, which record a history of extension, volcanism, sedimentation, subsidence, and inversion. The MCR came close to evolving into an oceanic spreading center, but it instead failed and thus records a late stage of rifting. It thus preserves a snapshot of a stage of the process by which actively extending rifts, characterized by upwelling mantle and negative gravity anomalies, evolve either into failed and often inverted rifts without upwelling mantle and positive gravity anomalies or into passive continental margins. Many rifts can be viewed as following a generally similar evolutionary sequence, within which a complex combination of factors control the variability of structures within and among rifts. Study of the MCR also gives insight into passive continental margins. The MCR gives a snapshot of deposition of a thick, dense, and highly magnetized volcanic section during rifting. Surface exposures, seismic, and gravity data delineate a rift basin filled by inward dipping flood basalt layers, underlain by thinned and underplated crust. The fact that the MCR shows many features of a rifted volcanic margin suggests that it came close to continental breakup before it failed, and illustrates how many passive margin features form prior to breakup.
DM201811-2734 2018	The National	Questioning the real value of lab-grown diamonds.	thenational.com, Oct. 7, 2p.	United States	News item - DPA
DS201812-2774 2018	Arnould, M., Coltice, N., Flament, N., Seigneur, V., Muller, R.D.	On the scales of dynamic topography in whole- mantle convection models.	Geochemistry, Geophysics, Geosystems, Vol. 19, 9, pp. 3140-3163.	United States, California	subduction
	Abstract: Mantle convection shapes Earth's surface by generating dynamic topography. Observational constraints and regional convection models suggest that surface topography could be sensitive to mantle flow for wavelengths as short as 1,000 and 250 km, respectively. At these spatial scales, surface processes including sedimentation and relative sea?level change occur on million?year timescales. However, time?dependent global mantle flow models do not predict small?scale dynamic topography yet. Here we present 2?D spherical annulus numerical models of mantle convection with large radial and lateral viscosity contrasts. We first identify the range of Rayleigh number, internal heat production rate and yield stress for which models generate plate?like behavior, surface heat flow, surface velocities, and topography distribution comparable to Earth's. These models produce both whole?mantle convection and small?scale convection in the upper mantle, which results in small?scale (<500 km) to large?scale (>104 km) dynamic topography, with a spectral power for intermediate scales (500 to 104 km) comparable to estimates of present?day residual topography. Timescales of convection and the associated dynamic topography vary from five to several hundreds of millions of years. For a Rayleigh number of 107, we investigate how lithosphere yield stress variations (1050 MPa) and the presence of deep thermochemical heterogeneities favor small?scale (200500 km) and intermediate?scale (500104 km) dynamic topography by controlling the formation of small?scale convection and the number and distribution of subduction zones, respectively. The interplay between mantle convection and lithosphere dynamics generates a complex spatial and temporal pattern of dynamic topography consistent with constraints for Earth.
DM201812-2933 2018	Creamers Mining Weekly	Harry Winston Jeweler buys 'Pink Legacy' diamond for record $ 50. m - Christie's.	creamersmining weekly.com, Nov. 14, 1/4p.	United States	News item - diamonds notable
DM201812-2952 2018	Diamonds.net	Major US retailers embrace synthetic diamonds.	diamonds.net, Nov. 3, 1/4p.	United States	News item - synthetics
DM201812-2971 2018	Ehud Arye Laniado	October 2018 market report. Over supply of small goods.	[email protected], Oct. 29, 4p.	United States, India, Israel, Hong Kong	News item - economics
DM201812-2978 2018	Idex Magazine	The US jewelery market is much smaller than you think.	idexmagazine, Nov. pp. 25-39.	United States	News item - jewelery market
DS201812-2879 2018	Sidder, A.	How nitrogen contributes to permafrost carbon dynamics.	EOS, doi.org/10.1029/2018EO107611 Nov. 2	United States, Alaska	carbon
	Abstract: The Arctic is warming 2-3 times faster than the global average. The rapid increase of near-surface air temperatures at high latitudes is driving a loss of ice in oceans, rivers, mountain glaciers, and soil. Permafrost, the perennially frozen ground found in frigid climates, is estimated to store approximately 1,500 gigatons of carbon, or about half of the world’s underground stores. This carbon is slowly escaping from the soil as permafrost thaws; this thawing could release as much carbon into the atmosphere as current emissions from global land use change over the next 80 years. Like many other models of future conditions, uncertainty plagues the estimates of permafrost carbon release. Salmon et al. explored how nitrogen, an important contributor to this uncertainty, interacts with carbon in thawing soils. Nitrogen is an essential nutrient for plants and soil microbes but occurs in limited supply in tundra soils. This limitation restricts plant growth and microbial decomposition, which are critical pieces of the carbon cycle. The researchers drilled soil cores at the Eight Mile Lake site in interior Alaska to depths of 85 centimeters to evaluate the annually thawed active layer (0-55 centimeters) as well as the upper permafrost (below 55 centimeters). They then incubated the soil cores at 15°C for about 8 months and measured the subsequent nitrogen levels and microbial biomass. The data collected in the incubation informed statistical models that were used to analyze the effects of depth, time, and growing season conditions on nitrogen and carbon dynamics. The findings revealed that both carbon loss and microbial biomass decreased significantly with soil depth. Models predicted that soil decomposition would release the largest amount of mineral nitrogen from soils located in the middle of the active layer. Permafrost soils at the bottom of the soil profile, however, released a large flush of mineral nitrogen during the initial thaw but a small flux of mineral nitrogen during subsequent decomposition. These patterns indicate that microbes near the soil surface are nitrogen limited, whereas deep microbial communities are more limited by carbon. The team’s calculations estimate that mineral nitrogen released from the soil profile would increase tenfold during the first 5 years of permafrost thaw. Should permafrost continue to thaw in the Arctic, these results suggest that tundra ecosystems may experience an increase in nitrogen availability that exceeds plant and microbial demands. Excess nitrogen, in turn, could precipitate increased decomposition of soil carbon and increased levels of nitrogen in streams draining from thawing permafrost landscapes. The study offers critical insights into how warming temperatures in the Arctic could dramatically increase permafrost thaw and initiate profound changes in carbon and nitrogen cycling in tundra ecosystems.
DC201901-0225 2018	Adamas One Corporation	The assets of Scio Diamond, a Greenville S.C. based producer of lab-grown diamonds has been purchased by Adamas One.	Adamas One Corporation, Dec. 11, 1p.	United States, Nevada	News item - press release
DS201901-0030 2018	Eaton-Magana, S.	Summary of CVD lab-grown diamonds seen at the GIA laboratory.	Gems & Gemology, Sixth International Gemological Symposium Vol. 54, 3, 1p. Abstract p. 269-270..	United States	synthetics
	Abstract: While chemical vapor deposition (CVD) diamond growth technology has progressed significantly in recent years, with improvements in crystal size and quality, the use of these goods in the jewelry trade is still limited. Not all CVD-grown gem diamonds are submitted to GIA for grading reports, and they only account for about 0.01% of GIA’s annual diamond intake (both D–Z equivalents and fancy color; Eaton-Magaña and Shigley, 2016). The CVD process involves diamond growth at moderate temperatures (700–1300°C) but very low pressures of less than 1 atmosphere in a vacuum chamber (e.g., Angus and Hayman, 1988; Nad et al., 2015). This presentation summarizes the quality factors and other characteristics of the CVD-grown material submitted to GIA (e.g., figure 1) and discusses new research and products. Today the CVD process is used to produce high-color (as well as fancy-color) and high-clarity type II diamonds up to several carats in size. The majority of the CVD material seen at GIA consists of near-colorless (G–N equivalent) with colorless (D–F equivalent) and various “pink” hues. Additionally, CVD material is constantly setting new size milestones, with the announcement of an approximately 6 ct round brilliant earlier this year (Davis, 2018). However, the attainable sizes among CVD products are dwarfed by those from the HPHT process, with 15.32 ct as the current record for a faceted gem (Ardon and Eaton-Magaña, 2018). One particular challenge for gemologists (albeit very rarely encountered) comes from the lab-grown/natural hybrids (figure 2) that have been submitted to and documented by gemological laboratories (e.g., Moe et al., 2017; Tang et al., 2018). In these specimens, the grower places a natural diamond into the CVD reactor as the seed plate, with both components retained in the faceted gem. If the manufacturer is using a colorless natural type Ia diamond as a seed plate for near-colorless CVD growth, the hybrid cannot undergo any post-growth HPHT treatment, as this would radically alter the natural seed by turning the natural diamond yellow. If the manufacturer is creating a CVD overgrowth layer on a faceted natural diamond, the intent is to either add weight to a diamond that may be near a weight boundary or to achieve a color change, typically to blue. These hybrid products also make it more difficult to infer a diamond’s history based solely on its diamond type. The CVD process has also created some unique gems that have not been duplicated among natural, treated, or HPHT-grown diamonds. These include CVD-grown diamonds with a high concentration of silicon impurities, which create a pink to blue color shift. In those samples, a temporary effect was activated by UV exposure, which precipitated a charge transfer between negative and neutral silicon-vacancy centers (D’Haenens-Johansson et al., 2015). Also recently seen are type IIb CVD goods. Some that were submitted by clients had a low boron concentration (3 ppb, with G-equivalent color and 1.05 carat weight). Meanwhile, some research samples produced by a manufacturer in China and fashioned as flat plates had dark bluish coloration and very high boron concentration (2500 ppb and higher). Also among that suite of flat-plate CVD samples was one with a black color caused by extremely high amounts of nitrogen-vacancy centers. Although new CVD products are continually being manufactured and introduced to the trade, the laboratory-grown diamonds examined to date by GIA can be readily identified.
DS201901-0040 2018	Gutscher, M-A.	Scraped by flat-slab subduction. Laramie Orogeny	Nature Geoscience, Vol. 11, 12, pp. 890-891.	United States, Wyoming	subduction
	Abstract: During flat subduction, material is scraped off the base of the continental mantle lithosphere, building a migrating keel. This testable mechanism for flat subduction recreates features of the Laramide orogeny.
DM201901-0159 2018	Narcity	Ozark diamond mine outlined as tourist attraction.	narcity.com, Dec. 12, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DS201901-0056 2018	Pommier, A., Roberts, J.	Understanding electrical signals from below Earth's surface. SIGMELTS ( peridotite San Carlos)	Geochimica et Cosmochimica Acta, Vol. 242, pp. 165-190.	United States, Arizona	peridotite
	Abstract: Scientists have known for a long time that various types of rock conduct current differently and that these differences are even more pronounced as the temperatures and pressures increase farther beneath Earth’s surface. They also know that unusual changes in electrical conductivity can signal activity down below, like migrating magma or a release of trapped fluids. Thus, electrical measurements can uncover clues about the events that trigger earthquakes and volcanic eruptions here on the surface. They can also give clues to the mantle’s structure and dynamics. However, interpreting these signals is far from straightforward. Earth scientists increasingly use electrical observations made in the field to image Earth’s crust and mantle, in particular, at subduction zones and mid-ocean ridges. An effective means of interpreting these electrical images and placing them into context with other geological observations is key to translating raw data into usable knowledge. Such knowledge includes assessing potential hazards by investigating, for example, links between fluid release and earthquake generation or the production and transport of magmatic melt from its source region to an eventual eruption. SIGMELTS is a freely available app that helps to characterize electrically conductive or resistive features detected at depth using electromagnetic observations. The objective of this Web application is to facilitate the elaboration of models of the electrical properties of crust and mantle materials, which, in turn, is used to improve the interpretation of field electromagnetic observations. A new version of SIGMELTS is now available.
DM201901-0204 2018	Rough-polished	Laurelton Diamonds to hold polished tender in New York and Antwerp. ( yellow)	Rough-polished, Dec. 26, 1/4p.	United States, New York, Europe, Belgium	News item - Laurelton
DC201902-0468 2019	Alrosa	Alrosa, the largest diamond mining company in the world, has appointed Rebecca Foerster as President Alrosa USA Inc.	alrosa.ru, Jan. 19, 1/2p.	United States	News item - Alrosa
DS201902-0256 2018	Andrews, R.G.	Earth is missing a huge part of its crust. Now we may know why. A fifth of the Earth's geologic history might have vanished because planet-wide glaciers buried the evidence.	National Geographic, Dec. 31,	United States, Arizona	geomorphology
	Abstract: The Grand Canyon is a gigantic geological library, with rocky layers that tell much of the story of Earth’s history. Curiously though, a sizeable layer representing anywhere from 250 million years to 1.2 billion years is missing. Known as the Great Unconformity, this massive temporal gap can be found not just in this famous crevasse, but in places all over the world. In one layer, you have the Cambrian period, which started roughly 540 million years ago and left behind sedimentary rocks packed with the fossils of complex, multicellular life. Directly below, you have fossil-free crystalline basement rock, which formed about a billion or more years ago. So where did all the rock that belongs in between these time periods go? Using multiple lines of evidence, an international team of geoscientists reckons that the thief was Snowball Earth, a hypothesized time when much, if not all, of the planet was covered in ice.
DM201902-0372 2019	Diamonds.net	Forevermark US sales increased in 2018 8%.	diamonds.net, Jan. 13, 1/4p.	United States	News item - De Beers
DM201902-0382 2019	Financial Times	Former Dominion chief launches synthetic diamond venture … Evans ….	financialtimes.com, Jan. 13, 1/2p.	United States	News item - synthetics
DM201902-0387 2019	Idex Online	The assets of the lab grown diamond maker Scio Diamond are being bought by a Nevada company called Adamas One Corp.	idexonline.com, Jan 4, 1/2p.	United States, Nevada	News item - Scio
DM201902-0394 2019	JCK	Plasmability - a new company has a patented method of creating lab-grown diamonds with more energy efficiency ( used in semi-conductor business).	jck.com, Jan. 11, 1p.	United States, Texas	News item - Plasmability
DM201902-0438 2019	Rough-polished	North Carolina State University managed to grow diamond fibers by exposing carbon fibers or nanotubes to the pulsed laser annealing (PLA) method. News.ncsu.edu	rough-polished.com, Jan. 25, 1/4p.	United States, North Carolina	News item - synthetics
DM201902-0454 2019	The Israeli Diamond Company	Arkansas Crater of Diamonds park summarizes a shinny 2018. 405 diamonds weighing total 77.12 carats	en.israelidiamond.co.il, Jan. 10, 1p.	United States, Arkansas	News item - Crater of Diamonds
DM201903-0559 2019	CMKM	CMKM defendant Dvorak to avoid jail, conviction. Nevada lawyer.	Stockwatch , Feb. 8, 1p.	United States, Nevada	News item - CMKM
DM201903-0581 2019	Diamonds.net	Helzberg Diamonds launches its own Light Heart brand.	diamonds.net, Feb. 13, 1/4p.	United States	News item - synthetics
DM201903-0585 2019	Diamonds.net	34ct yellow diamond sells for $520 k. ( Hawaii royal family ring)	diamonds.net, Feb. 22, 1/4p.	United States, Hawaii	News item - diamonds notable
DM201903-0595 2019	JCK	Scio tried to strike deal with diamond companies…. Before selling assets to Adamas One.	jck.com, Feb. 13, 1/4p.	United States, South Carolina	News item - Scio
DS201903-0524 2000	Kruse, F.A., Boardman, J.W.	Characterization and mapping of kimberlites and related diatremes using hyperspectral remote sensing.	IEEE.org * note date , pp. 299-304.	United States, Colorado, Wyoming	deposit - Kelsey Lake
	Abstract: Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) and commercially-available HyMap hyperspectral data were used to study the occurrence and mineralogical characteristics of limberlite diatremes in the State-Line district of Colorado/Wyoming. A mosaic of five flightlines of AVIRIS data acquired during 1996 with 20-m resolution is being used to locate and characterize the kimberlite diatremes. Higher spatial resolution data (1.6 m AVIRIS and 4m HyMap acquired in 1998 and 1999, respectively) are being used to map additional detail. Poor exposures, vegetation cover, and weathering, however, make identification of characteristic kimberlite minerals difficult except where exposed by mining. Minerals identified in the district using the hyperspectral data include calcite, dolomite, illite/muscovite, and serpentine (principally antigorite), however, most spectral signatures are dominated by both green and dry vegetation. The goal of this work is to determine methods for characterizing subtle mineralogic changes associated with kimberlites as a guide to exploration in a variety of geologic terrains.
DM201903-0673 2019	The Israel Diamond Industry	Nevada Jewelery company buys Scio diamond's assets. $ 3.3 million Adamas and CVD diamonds	israelidiamond.co.il, Feb 1, 1/4p.	United States, Nevada	News item - Adamas One
DC201904-0974 2019	ALTR Created Diamonds	A division of R.A. Riam Group and world's only vertically integrated diamond house.	ALTR Created Diamonds, Mar. 19, 1p.	United States, New York	News item - press release
DM201904-0815 2019	Bates, R.	Get ready for a more vocal, visible Alrosa.	jckonline.com, Mar. 14, 2p.	Russia, United States	News item - Alrosa
DM201904-0856 2019	Diamonds.net	GIA unveils new diamond origin grading report.	diamonds.net, Mar. 29, 1/4p.	United States	News item - GIA
DS201904-0748 2019	Hunt, L.E., Lamb, W.M.	Application of mineral equilibria to estimate fugacities of H2O, H2, and O2 in mantle xenoliths from the southwestern U.S.A.	American Mineralogist, Vol. 104, pp. 333-347.	United States	xenoliths
	Abstract: Small amounts of H2O, on the order of tens to hundreds of parts per million, can significantly influence the physical properties of mantle rocks. Determining the H2O contents of nominally anhydrous minerals (NAMs) is one relatively common technique that has been applied to estimate mantle H2O contents. However, for many mantle NAMs, the relation between H2O activity and H2O content is not well known. Furthermore, certain mantle minerals may be prone to H2O loss during emplacement on Earth’s surface. The goal of this study is to apply mineral equilibria to estimate values of aH2O in rocks that originated below the Moho. The chemical compositions of olivine + orthopyroxene + clinopyroxene + amphibole + spinel ± garnet were used to estimate values of temperature (T), pressure (P), aH2O, hydrogen fugacity (fH2), and oxygen fugacity (fO2) in 11 amphibole-bearing mantle xenoliths from the southwestern U.S.A. Application of amphibole dehydration equilibria yields values of aH2O ranging from 0.05 to 0.26 for these 11 samples and the compositions of coexisting spinel + olivine + orthopyroxene yield ?logfO2 (FMQ) of -1 to +0.6. For nine of the samples, values of fH2 were estimated using amphibole dehydrogenation equilibria, and these values of fH2 ranged from 6 to 91 bars. Values of fH2 and fO2 were combined, using the relation 2H2O = 2H2 + O2, to estimate a second value of aH2O that ranged from 0.01 to 0.57 for these nine samples. Values of aH2O, estimated using these two methods on the same sample, generally agree to within 0.05. This agreement indicates that the amphibole in these samples has experienced little or no retrograde H-loss and that amphibole equilibria yields robust estimates of aH2O that, in these xenoliths, are generally <0.3, and are often 0.1 or less.
DS201904-0752 2019	Kobayashi, M., Sumino, H., Burgess, R., Nakai, S., Iizuka, T., Nagao, J. Kagi, H., Nakamura, M., Takahashi, E., Kogiso, T., Ballentine, C.J.	Halogen heterogeneity in the lithosphere and evolution of mantle halogen abundances inferred from intraplate mantle xenoliths. Kilbourne Hole	Geochemistry, Geophysics, Geosystems, Vol. 20, 2, pp. 952-973.	United States, New Mexico	xenoliths
	Abstract: Elemental and isotopic compositions of volatile species such as halogens, noble gases, hydrogen, and carbon can be used to trace the evolution of these species in the Earth. Halogens are important tracers of subduction recycling of surface volatiles into the mantle: however, there is only limited understanding of halogens in the mantle. Here we provide new halogen data of mantle xenoliths from intraplate settings. The mantle xenoliths show a wide range of halogen elemental ratios, which are expected to be related to later processes after the xenoliths formed. A similar primary halogen component is present in the xenoliths sampled from different localities. This suggests that the mantle has the uniform halogen composition over a wide scale. The halogen composition in the convecting mantle is expected to have remained constant over more than 2 billion years, despite subduction of iodine?rich halogens. We used mass balance calculations to gain understanding into evolution rate of I/Cl ratio in the mantle. Calculations suggest that, in order to maintain the I/Cl ratio of the mantle over 2 Gyr, the I/Cl ratio of the subducted halogens must be no more than several times higher than the present?day mantle value.
DM201904-0898 2019	Rough-polished	Kimberley Process must grasp historic opportunity to correct its limitations, WDC President to tell special UN General Assembly meeting in New York.	rough-polished, Feb 28, 1/4p.	United States	News item - WDC
DM201904-0967 2019	Yahoo Finance	Russian diamond gaint hopes politics won't wreck US expansion plans. Alrosa	yahoofinance.com, Feb. 25, 1/4p.	Russia, United States	News item - Alrosa
DM201905-1097 2019	Bates, R.	Why GIA is growing diamonds in New Jersey.	jckonline.com, Apr. 12, 3p.	United States, New Jersey	News item - GIA
DC201905-1237 2019	Centaurus Diamonds	Centarus Diamonds lands American discovery near southwest caldera. Reclamation tailings to create from seed diamonds. ( synthetics)	Centaurus Diamonds, Apr. 28, 1p.	United States, Nevada	News item - press release
DM201905-1106 2019	Creamers Mining Weekly	Alrosa raises $11.8 mln in New York diamond sale.	creamersminingweekly.com, Apr. 1, 1/4p	Russia, United States	News item - Alrosa
DS201905-1022 2019	Crowell, R.	Secrets from the New Madrid seismic zone's quaking past.	EOS, https://doi.org/ 10.1029/2019EO120349 3p.	United States, Arkansas, Missouri, Tennessee	geophysics, seismic
DS201905-1025 2019	Drenth, B.J., Grauchm V.J.S.	Finding the gap in America's magnetic maps. ( Apr. 16, 2019)	EOS, https://spaces.hightail. com/receive/ 2jvDHdtWRr	United States, Arkansas, Missouri, Tennessee	geophysics, magnetic
DM201905-1134 2019	Entrepreneur	Americans are sitting on a fortune of old unwanted jewelery.	entrepreneur.com, Apr. 4, 1/4p.	United States	News item - Worthy
DS201905-1072 2017	Re, G.	Evolution and dynamics of a monogenetic volcanic complex in the southern Hopi Buttes Volcanic Field: magma diversion and fragmentation processes at the Jgged Rocks Complex.	Thesis: Phd Otago University, June	United States, Arizona	magmatism
	Abstract: Many populated areas in the world (e.g., Flagstaff, AZ; Auckland, NZ; Mexico City, MEX) lie within active monogenetic volcanic fields that typically contain small volcanic cones and explosive maar craters formed over the course of a single eruptive cycle. Although much work has focused on the eruptive behaviour of monogenetic volcanoes, little geological information exists about their subsurface development and how the movement of magma through Earth’s shallow crust modulates the location and style of hazardous volcanic eruptions. Determination of the dynamics of magma intrusion and the transition from a coherent magma's ascent to its explosive fragmentation is crucial to our understanding of the controls on explosive versus effusive eruptive behaviour, thus to better evaluation of risks in a certain area. This study aims to determine the processes and relative timing of activity that took place below the ground surface of the deeply-eroded but well-preserved Jagged Rocks Complex, a cluster of monogenetic volcanoes within the Miocene Hopi Buttes Volcanic Field in northeastern Arizona, by combining detailed structural mapping, volcanological observation, paleomagnetic and geochemical analysis. The Jagged Rocks Complex, exposed at ~ 350 m below the pre-eruptive surface, comprises a well-preserved intrusive network, including dikes, sills and inclined sheets, associated with different type of fragmental bodies including buds, pyroclastic massifs and a diatreme, that represent different extents of shallow-depth fragmentation. These exposures at the Jagged Rocks Complex provide an excellent natural laboratory for examining the subsurface record of volcano initiation, and for constraining interpretations of processes controlling upward migration of magma from intrusion to eruption. This multidisciplinary approach allows an investigation at different levels from the source region to the surface, and aims to shed the light on the processes that regulate eruptions not only within monogenetic volcanic fields but also within small basaltic volcanoes in general.
DM201905-1169 2019	Rough-polished	De Beers happy with USA directive on marketing synthetic diamonds. FTC	rough-polished.com, Apr. 3, 1/4p.	United States	News item - De Beers
DM201905-1197 2019	Rough-polished	IMAGEM launches the first portable grading device. Varna-D color	rough-polished.com, Apr. 17, 1/4p.	United States	News item - IMAGEM
DM201906-1408 2019	Diamonds.net	Undisclosed green synthetics raise GIA eyebrows.	diamonds.net, May 26, 1/4p.	United States	News item - synthetics
DS201906-1292 2019	Frost, B.B., Frost, C.	The Wyoming province, a long-lived craton on the periphery of Laurentia.	GAC/MAC annual Meeting, 1p. Abstract p. 91.	United States, Canada	craton
	Abstract: The Wyoming craton is one of the three cratons, Wyoming, Slave, and Nain, with Hadean roots that lie on the margins of Laurentia. The Wyoming and Slave provinces show many similarities, most notably a widespread supracrustal sequence that formed around 2.86 Ga. It is possible that the two cratons rifted apart at 2.86 Ga and docked onto Laurentia as separate entities in the Paleoproterozoic. The Wyoming province is characterized by elevated 207Pb/204Pb indicative of cratons that have a Hadean origin. The earliest rocks contain 3.8 to 4.0 Ga detrital and xenocrystic zircon grains. The 3.82 Ga xenocrystic zircon grains from 3.4 Ga tonalitic gneisses in the Granite Mountains have Hf isotopic compositions requiring Hadean precursors. The transition from tonalitic to granodioritic plutonism is diachronous; it occurs around 3.3 Ga in the Granite Mountains and around 2.85 Ga in the Bighorn Mountains. Granitic plutonism since 2.85 Ga is dominantly magnesian and calc-alkalic, compositionally identical to Phanerozoic arc magmas. The Teton Range, on the western margin of the province, records the earliest Himalayan orogeny on Earth at 2.7 Ga, further evidence that much of the Wyoming Province was constructed by processes similar to those operating in the Phanerozoic. The latest structural and metamorphic event in the evolution of the craton was accretion of crustal fragments along structures that trend broadly NE-SW at 2.62 Ga. The latest major magmatic event was the intrusion of the peraluminous granites of the Mount Owen batholith in the Teton Range at 2.55 Ga. The Wyoming craton was accreted to Laurentia in the Paleoproterozoic, probably during the later stages of the Trans-Hudson orogeny.
DS201906-1295 2019	Gem News International	Potentate's Montana sapphire mine: an interview with Warren Boyd.	Gems & Gemology, Vol. 55, 1, pp. 134.	United States, Montana	sapphire
	Abstract: The history of the American West is told in stories of frontiersmen seeking fortune in gold and other precious metals. It was serendipity when these intrepid adventurers arrived in western Montana and discovered strange, shiny pebbles—sapphires—while looking for gold. Little did they know the gem wealth they had uncovered with the sapphires, which were simply a nuisance to the gold miners at first. More than 100 years later, this legacy of mining is carried on by several small-scale miners across Montana, and with the arrival of Potentate Mining at the Rock Creek sapphire deposit. We had the chance to sit down in Tucson with Potentate’s director of marketing, Warren Boyd, for an update on their mining activities and their plans to find a place for Montana sapphires in the market...(No abstract - full article)
DS201906-1300 2019	Harms, T., Baldwin, J.	Paleoproterozoic metasupracrustal suites on the NW flank of the Wyoming province: the stories they do and do not tell about an evolving continent.	GAC/MAC annual Meeting, 1p. Abstract p. 103.	United States, Canada	craton
	Abstract: Metasupracrustal sequences interlayered with quartzofeldspathic gneisses distinguish the Montana Metasedimentary terrane on the NW flank of the Wyoming Province (WP). Early thinking correlated marble-bearing suites and considered them younger than carbonate-absent sequences, promoting models of WP continental crust evolution toward thick lithosphere supporting a stable marine platform in the period ~ 3.5-2.5 Ga. Metasupracrustal suite depositional ages constrained by (1) detrital zircons; (2) times of metamorphism; and (3) cross-cutting meta-igneous rocks now indicate a more complex pattern of tectonic environments along the NW margin of the WP. Carbonate-bearing metasupracrustal suites in the Tobacco Root Mountains and Ruby Range include marble, amphibolite, orthoamphibolite, pelitic gneiss, quartzite, and iron formation. Detrital zircons constrain the protolith age to 2.45 Ga. Interlayered quartzofeldspathic gneiss with calc-alkaline geochemistry were previously interpreted as suggesting a continental fringing arc superimposed on Archean basement. An episode of metamorphism and anatexis followed at 2.45 Ga, demonstrated by metamorphic monazite and intrusive ages of cross-cutting mylonitic leucogneiss. We interpret this to be a time of collision along the NW WP. Cross-cutting mafic sills and dikes suggest continental rifting at 2.06 Ga. Diverse metasupracrustal suites whose protoliths must be 1.8 Ga occur in the Ruby, Tobacco Root, and Highland mountains. A carbonate-absent suite of amphibolite, orthoamphibolite, pelitic schist and quartzite in the Tobacco Root Mountains represents oceanic crust, while aluminous schist and interlayered amphibolite in the Highland Mountains are consistent with a back-arc basin setting. The Ruby Range suite includes prominent marble, amphibolite, orthoamphibolite, pelitic schist, quartzite and iron formation and may represent a second, post-rift carbonate platform facing that basin. These suites collapsed against the WP during the 1.78-1.72 Ga Big Sky orogeny as a consequence of subduction directed beneath the WP.
DS201906-1345 2019	Saylor, J.E., Finzel, E., Jadamec, M.	Linking observations and modeling of flat-slab subduction.	EOS.100, doi.org/10.1029/ 2019/EO122245	United States, Montana	subduction
DS201906-1365 2019	Zhang, W., Johnston, S.T., Currie, C.A.	Kimberlite magmatism induced by west-dipping subduction of the North American plate.	Geology, Vol. 47, pp. 395-398.	United States, Canada	subduction
	Abstract: Kimberlite magmas are volatile-rich, potassic, and ultramafic, and they are host to most of the world’s diamond deposits. A continental-scale kimberlite magmatic belt (the central Cretaceous kimberlite corridor [CCKC]) is found in the interior of the North American continent. Parallel to and coeval with the CCKC, the Cretaceous Omineca magmatic belt (OMB) is located in the Cordilleran orogen. Cordilleran magmatism, including the OMB, is commonly explained through long-lived east-dipping subduction beneath the western margin of the continent. However, this does not explain the temporal and spatial relationships between the OMB and CCKC. We suggest that west-dipping subduction of North American lithosphere beneath the eastern side of the Cordillera explains both. In this model, subduction resulted in arc magmatism of the OMB. The contemporaneous CCKC was formed by extensional stress acting on the continent as it flexed upon entry into the trench. Using a semi-infinite elastic beam model, we show that flexure of a subducting continental plate (elastic thickness = 120 km) produces tensile stresses in the deep continental lithosphere, coincident with the location of the CCKC.
DS201907-1530 2019	Byrnes, J.S., Bezada, M., Long, M.D., Benoit, M.H.	The lithosphere beneath the central Appalachian Mountains: constraints from seismic attenuation beneath the MAGIC array.	Earth and Planetary Science Letters, Vol. 519, pp. 297-307.	United States	geophysics - seismics
	Abstract: The passive margin of the eastern coast of the United States is known to be geologically active, with recently rejuvenated topography, intraplate seismicity, and volcanism of Eocene age. This study uses seismic data from the Mid-Atlantic Geophysical Integrative Collaboration (MAGIC) experiment to constrain lateral variations in the attenuation of teleseismic P waves beneath the central Appalachian Mountains to shed light on the structure and dynamics of the upper mantle at this “active” passive margin. We use a Monte Carlo approach to estimate variations in attenuation along with both data and model uncertainties. The quality factor of the upper mantle dramatically decreases over a distance of less than 50 km on the western side of the central Appalachian Mountains, where a low-velocity anomaly has been previously inferred. Extrinsic factors such as scattering or focusing are rejected as explanations for the observations on the basis of finite-difference waveform modeling experiments. The peak in attenuation beneath the crest of the Appalachian Mountains requires that near- to super-solidus conditions occur in the upper mantle and is co-located with volcanism of Eocene age. Our preferred interpretation is that the attenuation reflects the removal of the mantle lithosphere via delamination beneath the mountains, followed by ongoing small-scale convection.
DS201907-1535 2019	Cole, B.G., Andrews, G.D.M., Brown, S.R., Prellwitz, H.	The Masontown kimberlite, Fayette County, Pennsylvania: insights into emplacement processes by the characterization of xenocryst sizes and shapes using computed tomography.	Joint 53rd Annual South-Central/53rd North Central/71st Rocky Mtn GSA section Meeting, Vol. 331	United States, Pennsylvania	deposit - Masontown
	Abstract: The late Jurassic Masontown dyke in Fayette County, SW Pennsylvania, preserves abundant rounded, mm to cm-diameter masses of olivine and serpentine cemented together in serpentine-rich kimberlite groundmass. Each mass is interpreted to be a partially serpentinized olivine xenocryst or peridotite xenocryst. Each rounded clast is jacketed by a distinct rim of serpentine; probably originally olivine. The (1) ubiquitous roundness of clasts and (2) the presence of distinct serpentine jackets around each clast, supports emplacement of the dyke by a 'kimberlite factory' (Brett et al., 2015). Due to the paucity of available samples, we have used non-destructive imaging by computed tomography (CT) at the National Energy Technology Lab in Morgantown, WV, to construct 3D models of the internal structure of hand samples loaned from the Smithsonian Institute's Museum of Natural History. MicroCT (1-3 micron resolution) and industrial CT (~15 microns resolution) serial scans processed in ImageJ and Blob3D allow for 3D characterizations of individual clasts, including their shape factors (sphericity, roughness, etc.) and sizes (i.e. crystal size distributions).
DM201907-1609 2019	Creamers Mining Weekly	Cautionary rare earths tale found in Molycorp's rise and fall.	creamersmining weekly.com, May 30, 1/4p.	United States, California	News item - Molycorp
DM201907-1614 2019	Creamers Mining Weekly	Rare Earths giant Lynas to prioritise US military's needs, CEO says.	creamersmining weekly.com, June 7, 1/4p.	United States, Texas	News item - Lynas
DM201907-1692 2019	Rough-polished	Alrosa's New York diamond auction brings in $ 8.8 million specials + 10.8 carats.	rough-polished.com, June 6, 1/4p.	Russia, United States	News item - Alrosa
DM201907-1727 2019	The Israeli Diamond Industry	118 carat yellow diamond brings down the house at Christie's $ 7 million.	en.israelidiamond.co.il, May 21, 1/4p.	United States	News item - Christie's
DM201908-1828 2019	Actionnewsnow	A vacationing teacher finds a 2.12 carat diamond at an Arkansas state park.	actionnewsnow.com, July 30, 1p.	United States, Arkansas	News item - Crater of Diamonds
DM201908-1889 2019	Kaprielian, Y.	You are a diamond: seeing life like a diamond. ( inspiration for generations) Vol. 1 Scratching the surface.	Amazon.com, Aug. paperback $ 16.95	United States	News item - book
DS201908-1800 2019	Netto, A., Pulliam, J., Persaud, P.	Synoptic view of lithospheric S-wave velocity structure in the southern United States: a comparison of 3D seismic tomographic models.	GSA Today, Vol. 29, 7, pp. 4-10.	United States	geophysics - seismic
	Abstract: The southern U.S. continental margin records a history spanning ca. 1.2 Ga, including two Wilson cycles. However, due to a thick sediment cover, the paucity of significant local seismicity, and, until recently, sparse instrumentation, details of this passive margin’s tectonomagmatic evolution remain disputed. This paper compares recent S-wave tomography and crustal thickness models based on USArray data to help establish a framework for geodynamic interpretation. Large-scale patterns of crustal velocity anomalies, corresponding to major regional features such as the Ouachita orogenic front and the Precambrian margin, are generally consistent between the models. The spatial extent of smaller-scale tectonic features, such as the Sabine Uplift and Wiggins block, remains poorly resolved. An inverse relationship between crustal thickness and Bouguer gravity across the continental margin is observed. This model comparison highlights the need for additional P-wave tomography studies and targeted, higher density station deployments to better constrain tectonic features.
DM201908-1906 2019	Rough-polished	NY Company DiamHolding launches DiamTek - a new technology for diamond tagging.	rough-polished.com, July 1, 1/4p.	United States	News item - DiamTek
DM201908-1955 2019	Rough-polished	GSI opens its new testing laboratory in New York.	rough-polished.com, July 29, 1/4p.	United States, New York	News item - synthetics
DC201909-2220 2019	CMKM Diamonds Inc.	CMKM case wraps up with Dvorak charges dropped. 10 years for legal case	CMKM Diamonds Inc., Aug. 14, 2p.	United States, Nevada	News item - CMKM
DM201909-2128 2019	Diamonds.net	US retailers worry new China tariffs will further raise prices and cost jobs.	reuters.com, Aug. 5, 1/4p.	United States, China	News item - legal
DM201909-2131 2019	Diamonds.net	Legendary larceny:. The story behind the fabled Harry Winston heists.	vanityfair.com, Aug. 12, 1p.	United States, New York	News item - Winston
DM201909-2142 2019	Diamonds.net	GIA exposes rough diamond's fake green color.	diamonds.net, Aug. 20, 1/4p.	United States	News item - GIA
DM201909-2154 2019	Informed American	Nearly 4 carat yellow diamond found at Crater of Diamonds	informedamerican.com, Aug. 21, 1p.	United States, Arkansas	News item - Crater of Diamonds
DS201909-2069 2019	Palke, A., Hapeman, J.R.	Rubies from Rock Creek, Montana. Potentate	Gems & Gemology, Vol. 55, 7, pp. 286-288.	United States, Montana	ruby
DM201909-2192 2019	Rough-polished	Alrosa sells large rough diamonds in the US fo $ 7 mln.	rough-polished.com, Aug. 14, 1/4p.	Russia, United States	News item - Alrosa
DM201909-2193 2019	Rough-polished	Lab-grown diamond jewellery exports from India to capture 2 % of US market.	rough-polished.com, Aug. 14, 1/4p.	India, United States	News item - synthetics
DS201909-2095 2019	Thakurdin, Y., Bolhar, R., Horvath, P., Wiedenbeck, M., Rocholl, A.	Formation of lower to middle crust of the Wyoming craton, Montana, USA, using evidence from zircon Hf-O isotopic and trace element compositions.	Chemical Geology, Vol. 525, pp. 218-244.	United States, Montana	craton - Wyoming
	Abstract: Coupled oxygen-hafnium isotope and trace element geochemical data were obtained using thirty eight previously dated zircon grains extracted from five mafic to intermediate crustal xenoliths of the Wyoming Craton (Montana, USA). Xenoliths include mid to lower crustal (642-817?°C and 3.5-9.4?kbar) mafic granulites and amphibolites with dominantly Mesoproterozoic (1772-1874?Ma) and minor Paleoproterozoic to Late Archean (2004-2534?Ma) 207Pb/206Pb zircon ages. Zircon oxygen isotope data indicate derivation from melts in equilibrium with a mantle source that interacted with limited supracrustal material (?18O?=?4.4-5.7‰), as well as the incorporation of supracrustal fluids or melts into mantle source regions (?18O?=?6.0-8.1‰). The small within-sample isotopic variability suggests that primary zircon did not exchange with isotopically distinct fluids or melts after initial formation. Initial zircon Hf isotopic values are highly variable across all xenoliths (?Hf?=?+3.7 to ?17.6), consistent with protolith derivation from mantle sources that incorporated evolved, unradiogenic material or were modified by subduction-related fluids. Within a single granulite xenolith, two zircon types are recognized based on CL imagery, Hf isotopes and U-Pb ages (Type I and Type II). Type I magmatic zircons show dispersed ages (ca. 1700-2534?Ma) and unradiogenic initial Hf (?Hf?=??17.6 to ?1.5, 176Hf/177Hf?=?0.281074-0.281232). The spread in ages and initial ?Hf, but narrow range in initial 176Hf/177Hf, points to variable Pb loss in response to dissolution-recrystallization of pre-existing zircon. Type II metamorphic zircon yields a younger Proterozoic population (ca. 1700-2155?Ma) with more radiogenic initial Hf relative to Type I zircon (?Hf?=??7.9 to +1.4, 176Hf/177Hf?=?0.281427-0.281578); this type represents newly grown metamorphic zircon that formed in the solid-state and incorporated Zr and Hf from pre-existing zircon and silicate matrix/metamorphic phases. REE patterns from all xenoliths are steep and positively sloping without discernible HREE depletion relative to LREE, implying zircon crystallization/recrystallization in the absence of garnet. Negative Eu anomalies signify simultaneous zircon and feldspar crystallization. Solid-state recrystallization may have lead to variations in LREE, Eu and Ce in certain xenoliths. Xenoliths containing magmatic zircon (1834?±?19?Ma) with mantle-like ?18O (4.4-5.5‰) and radiogenic initial ?Hf (?2.3 to +3.7) likely formed through crystallization of melts derived from a mantle source that incorporated minor amounts of subducted sedimentary/supracrustal material. Proterozoic (1874?±?8?Ma) xenoliths with elevated ?18O (6.0-7.0‰) and unradiogenic initial ?Hf (?8.2 to ?9.6) within magmatic zircon represent melt products of subduction-induced melting and metasomatism of the overlying mantle wedge in the vicinity of the northern GFTZ. Older (ca. 2534?Ma) xenoliths containing zircons with elevated ?18O (6.4-7.2‰) and unradiogenic ?Hf (up to ?17.6) represent crystallization of protolith magmas extracted from a mantle source metasomatized by subduction-derived fluids and melts in the Late Archean or earlier. Zircon geochronology and isotope systematics within Mesoproterozoic xenoliths support a model of ocean-closure and subsequent continental collision between the Medicine Hat Block and Wyoming Craton, resulting in the formation of subduction-related melts at ca. 1834-1874?Ma, followed by ca. 1770?Ma collision-related metamorphism thereafter.
DS201909-2107 2019	Watts, K., Haxel, G., Miller, D.	Zircon record of alkaline magmatism associated with the Mountain Pass carbonatite REE deposit, southeast Mojave desert, California, USA.	Goldschmidt2019, 1p. Abstract	United States, California	deposit - Mountain Pass
	Abstract: Mountain Pass is one of the largest and most economically important REE deposits in the world. The ore body is a carbonatite stock within a shonkinite and syenite plutonic complex, which is part of a ~130 km long trend of Mesoproterozoic alkaline igneous rocks in the southeast Mojave Desert [1]. Zircons from a suite of shonkinite and syenite rocks at Mountain Pass were analyzed by SHRIMP-RG (207Pb/206Pb ages and trace elements) and SIMS (O isotopes) to elucidate their petrogenesis and potential relationship to ore-forming carbonatite. Concordant 207Pb/206Pb dates define multimodal distributions from ~1370-1435 Ma and ~1530-1780 Ma. The youngest 207Pb/206Pb dates of ~1370-1380 Ma and ~1390-1400 Ma overlap published Th-Pb monazite ages of 1371 ± 10 Ma and 1396 ± 16 Ma for the carbonatite ore body and a smaller carbonatite dike at Mountain Pass [2]. The youngest (<1435 Ma) zircons, interpreted to be magmatic (autocrystic), have REE up to ~10,000x chondrite values, subtle (~0.8) Eu/Eu* anomalies, generally low U (<500 ppm), moderate Hf (<11,000 ppm), and Ti-in-zircon temperatures that cluster at ~800 °C. Paleoproterozoic zircon xenocrysts have larger Eu/Eu* anomalies (~0.1- 0.5) and extend to higher Hf contents (>11,000 ppm). Zircon ?18O values in the <1435 Ma grains span from mantle (~5‰) to supracrustal (~7‰), and are mostly in the higher supracrustal end of the range. Paleoproterozoic zircons overlap this range as well as extend to higher ?18O values (~9‰). Our new data support coeval and longlived (20 Myr+) alkaline and carbonatite magmatism and underscore the relative importance of the crust in generating magmas associated with the world-class Mountain Pass REE deposit.
DM201910-2316 2019	Arkansas Democrat	The state cannot move into second stage of diamond exploration at the Crater of Diamonds State Park until it prepares an environmental impact statement.	Arkansasdemocrat.com, Aug. 29, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DS201910-2244 2019	Basu, U., Powell, C.	Pn tomography and anisotropy study of the Central United States.	Journal of Geophysical Research: Solid Earth, Vol. 124, 7, pp. 7105-7119.	United States	geophysics - seismic
	Abstract: Detailed P wave velocity and anisotropy structure of the uppermost mantle below the central United States is presented based on a tomographic inversion of Pn traveltimes for earthquakes in the range 2 to 14°. Dense raypath coverage throughout the northern Mississippi Embayment is obtained using the Northern Embayment Lithosphere Experiment and U.S. Transportable Array data sets. A detailed analysis of the trade?off between velocity and anisotropy variations demonstrates that both are well resolved over most of the study area. Anomalously fast Pn velocities are identified below the northern Mississippi Embayment, centered on the New Madrid seismic zone. A prominent region of low velocity coincides with the southwestern margin of the Illinois basin. Pn anisotropy displays complex patterns and differs from absolute plate motion directions and SKS splitting directions. A circular pattern of fast anisotropy directions is centered on the New Madrid seismic zone and may be related to the presence of the mafic “rift pillow.”
DM201910-2372 2019	Idex Online	GIA upgrades iD100 Gem testing device to screen pink diamonds.	idexonline.com, Sept. 10, 1/4p.	United States	News item - GIA
DS201910-2270 2019	Keifer, I., Dueker, K.	Testing the hypothesis that temperature modulates 410 and 660 discontinuity topography beneath the eastern United States.	Earth and Planetary Science letters, Vol. 524, 115723 11p.	United States	tomography
	Abstract: The leading hypothesis to explain 410 and 660 km discontinuity topography and coincident velocity variations is the thermal hypothesis stated as: temperature variations are the primary modulator of discontinuity topography and seismic velocity variations. To test the thermal hypothesis, discontinuity topography maps are correlated with coincident P- and S-velocity variations for the eastern half of the United States sampled by IRIS-EarthScope USArray seismic data. The discontinuity topography maps were made via common-conversion point migration of P-wave receiver functions. The receiver functions were made using a multi-event and multi-station deconvolution method. Fundamental to our results is the choice of three-dimensional P- and S-velocity models, which are used as migration velocity models and for correlation analysis. Two three-dimensional velocity models are used in our analysis: the MITS-model of Golos et al. (2018) and the SL-model of Schmandt and Lin (2014). The Pearson correlation coefficient is used to estimate the degree of linearity between the discontinuity topography and coincident velocity variations. A bivariate regression of discontinuity topography versus coincident velocity variations (termed the mineral physics slope) is performed and compared to a range of slopes constrained by published velocity-temperature derivatives and Clapeyron slopes. Using spatially binning, the discontinuity topography and coincident velocity variations, spatial maps of the correlation coefficient and mineral physics slope are made. Most of the discontinuity sampling area has reasonable correlation values (?0.4) and plausible mineral physics slope values. The veracity of the thermal hypothesis is assessed by integrating the probability density functions of the mineral physics slopes over a domain defined by the published range of 410 and 660 Clapeyron slopes. At the 410, the MITS-model and SL-model thermal hypothesis probabilities are 52% and 51%, respectively, and the seismic Clapeyron slope estimates are 2.7 and 1.3 MPa/K, respectively. At the 660, the MITS-model and SL-model thermal hypothesis probabilities are 54% and 75%, respectively and the seismic Clapeyron slope estimates are ?1.1 and ?1.7 MPa/K, respectively. These Clapeyron slopes estimates are in the middle of plausible Clapeyron slope ranges. Using these Clapeyron slopes, temperature maps show a ±300 K range at the 410 and a ±600 K range at the 660. For regions that are inconsistent with the thermal hypothesis, we suggest that the leading explanations are uncertainties in the velocity models used and secondarily, hydration effects.
DS201910-2283 2019	Marzen, R.E., Shillington, D.E., Lizarralde, D., Harder, S.H.	Constraints on Appalachian orogenesis and continental rifting in the southeastern United States from wide angle seismic data.	Journal of Geophysical Research: Solid Earth, Vol. 174, 7, pp. 6625-6652.	United States	geophysics - seismic
	Abstract: The Southeastern United States is an ideal location to understand the interactions between mountain building, rifting, and magmatism. Line 2 of the Suwannee suture and Georgia Rift basin refraction seismic experiment in eastern Georgia extends 420 km from the Inner Piedmont to the Georgia coast. We model crustal and upper mantle VP and upper crustal VS. The most dramatic model transition occurs at the Higgins?Zietz magnetic boundary, north of which we observe higher upper crustal VP and VS and lower VP/VS. These observations support the interpretation of the Higgins?Zietz boundary as the Alleghanian suture. North of this boundary, we observe a low?velocity zone less than 2 km thick at ~5?km depth, consistent with a layer of sheared metasedimentary rocks that forms the Appalachian detachment. To the southeast, we interpret synrift sediments and decreasing crustal thickness to represent crustal thinning associated with the South Georgia Rift Basin and subsequent continental breakup. The correspondence of the northern limit of thinning with the interpreted suture location suggests that the orogenic suture zone and/or the Gondwanan crust to the south of the suture helped localize subsequent extension. Lower crustal VP and VP/VS preclude volumetrically significant mafic magmatic addition during rifting or associated with the Central Atlantic Magmatic Province. Structures formed during orogenesis and/or extension appear to influence seismicity in Georgia today; earthquakes localize along a steeply dipping zone that coincides with the northern edge of the South Georgia Basin and the change in upper crustal velocities at the Higgins?Zietz boundary.
DM201910-2395 2019	Republic of Mining	Tiffany beat profit expectations - and it conflicts with the idea that millenials aren't buying diamonds.	CNBC.com, Aug. 29, 1p.	United States, Global	News item - Tiffany
DM201910-2396 2019	Republic of Mining	Silicon Valley wants to put diamond mines out of business - by growing gems in a lab using solar power.	telegraph.co.uk, Sept. 5, 1p.	United States, California	News item - synthetics
DM201910-2408 2019	Rough-polished	GIA's Carlsbad laboratory examined an interesting attempt to imitate a natural green diamond. 6.49 ct	rough-polished.com, Aug. 30, 1/4p.	United States, California	News item - GIA
DM201910-2469 2019	West Virginia Explorer	Rare, mysterious diamond found in 1928 in West Virginia. Punch Jones also known as the Horseshoe diamond	wexplorer.com, Sept. 27, 1p.	United States, West Virginia	News item - diamonds notable
DS201911-2509 2019	Baziotis, I., Xydous, S., Asimow, P.D., Mavrogonatos, C., Flemetakis, S., Klemme, S., Berndt, J.	The potential of phosphorous in clinopyroxene as a geospeedometer: examples from mantle xenoliths.	Geochimica et Cosmochimica Acta, Vol. 266, pp. 307-311.	United States, California, Africa, Morocco	metasomatism
	Abstract: We investigate the potential to use concentrations and zoning patterns of phosphorus (P) in clinopyroxene as indicators of the rates of igneous and metasomatic processes, comparable to recent applications of P in olivine but applicable to more evolved rocks and lower temperatures of crystallization. Few high-P pyroxenes have been previously reported, and none have been analyzed in detail for the mechanism of P enrichment or the implications for mineral growth kinetics. Here, we report the discovery and characteristics of exotic phosphorus-rich secondary clinopyroxene in glassy pockets and veins in composite mantle xenoliths from the Cima Volcanic Field (California, USA) and the Middle Atlas Mountains (Morocco, West Africa). These glass-bearing xenoliths preserve evidence of melt infiltration events and the contrasting behavior of P in their pyroxene crystals constrains the different rates of reaction and extents of equilibration that characterized infiltration in each setting. We report optical petrography and chemical analysis of glasses and minerals for major elements by electron microprobe microanalyzer and trace elements by laser-ablation Inductively Coupled Plasma Mass Spectrometry. The Cima Volcanic Field specimen shows one end-member behavior, with unzoned P-rich clinopyroxene in a melt pocket. We attribute this occurrence to a slow crystallization process that occurred after the melt temperature reached near-equilibrium with the host rock and during which the P concentration in the melt was buffered by apatite saturation. In the Morocco xenolith, by contrast, clinopyroxene exhibits zonation with P increasing all the way to the rim, in contact with the glass. We ascribe this feature to a rapid growth process in which excess P was incorporated into the growing clinopyroxene from a diffusive boundary layer. We demonstrate quantitative agreement between the enrichment of P and other trace elements and their expected diffusion and partitioning behavior during rapid growth. We suggest that P has not been widely reported in clinopyroxene in large part because it has rarely been looked for and that its analysis offers considerable promise as a kinetic indicator both in xenoliths and volcanic rocks.
DM201911-2590 2019	CNBC	Rare Earth minerals are a big element in the China trade fight. ( comments on Mountain Pass)	cnbc.com, Oct. 17, /4p.	United States, California	News item - REE
DM201911-2611 2019	Creamers Mining Weekly	De beers banks on " diamonds are for me". Bigger budget than last year's 170 milllion marketing.	creamersminingweekly, Oct. 29, 1/4p.	Global, United States	News item - De Beers
DM201911-2616 2019	Diamonds.net	LVMH proposes Tiffany takeover. $ 15 billion	diamonds.net, Oct. 28, 1/4p.	United States	News item - Tiffany
DM201911-2620 2019	Diamonds.net	LVMH's Tiffany bid shows power passing from miners to marketers.	diamonds.net, Oct. 30, 1/4p.	United States, Global	News item - Tiffany
DM201911-2638 2019	JCK News	Tiffany "not in discussions" with LVMH over bid. Highly unlikely LVMH will bid enough to match Tiffany's high share price.	jckonline.com, Oct. 29, 1p.	United States, Global	News item - Tiffany
DM201911-2639 2019	JCK News	Why Tiffany should tell LVMN "no thanks". The $ 14.5 bln bid doesn’t do much for a company that's done well on its own.	jckonline.com, Oct. 31, 1/2p.	United States	News item - Tiffany
DS201911-2537 2019	Kiseeva, E.S., Wood, B.J., McCammon, C., Ashchepkov, I.	Ferric ferrous ratios in mantle xenoliths by synchrotron mossbauer source spectroscopy. Kilbourne Hole	Goldschmidt2019, 1p. Abstract	United States, California	spectroscopy
	Abstract: Synchrotron Mössbauer Source (SMS) spectroscopy (ESRF, Grenoble, France) has high spatial resolution (~20 microns) and has been successfully applied to measuring Fe3+ concentrations in diamond inclusions [1,2]. Over the last few decades a number of studies have been conducted on individual minerals from mantle xenoliths in order to determine the oxidation state of the upper mantle [3,4]. These studies were conducted using ?50 mg of handpicked grains as opposed to individual crystals. In this study, we applied SMS to measure ferric iron contents of individual spinels, orthopyroxenes, clinopyroxenes and garnets from 5 spinel peridotite xenoliths and 1 pyroxenite and 2 eclogite xenoliths. Spinel xenoliths derive from Kilbourne hole, Mont Briançon and Ichinomegata. Spinels from these xenoliths were previously analysed by Mössbauer spectroscopy on bulk separates [4]. Eclogite xenoliths (UAS 1055, UAS 1525) and pyroxenite xenolith (UAS 510) were obtained from Udachnaya kimberlite pipe in Siberia. In spinel peridotites measured ratios range between 0.04- 0.14 Fe3+/Fetot for Opx, 0.14-0.19 Fe3+/Fetot for Cpx and between 0.15-0.23 for Spl. These values are broadly in agreement with previous measurements [3]. In eclogites and pyroxenite, the ratios range between 0.05-0.16 for garnet and 0.07-0.17 for Cpx, showing DGrt/Cpx for Fe3+ of 0.8-1.9. Oxygen fugacities derived from the spinel-olivineorthopyroxene oxybarometer are consistent with previous results for the continental lithosphere fO2 of between -1 and +1 log units relative to the FMQ buffer [5]. Nevertheless we observe small differences between our results on individual grains and previous data on bulk separates.
DS201911-2542 2019	Lyons, J.J., Haney, M.M., Fee, D., Wech, A.G., Waythomas, C.F.	Infrasound from giant bubbles during explosive submarine eruptions. Bogoslof	Nature Geoscience, 10.1038/s41561-019-0461-0	United States, Alaska	volcano
	Abstract: Shallow submarine volcanoes pose unique scientific and monitoring challenges. The interaction between water and magma can create violent explosions just below the surface, but the inaccessibility of submerged volcanoes means they are typically not instrumented. This both increases the risk to marine and aviation traffic and leaves the underlying eruption physics poorly understood. Here we use low-frequency sound in the atmosphere (infrasound) to examine the source mechanics of shallow submarine explosions from Bogoslof volcano, Alaska. We show that the infrasound originates from the oscillation and rupture of magmatic gas bubbles that initially formed from submerged vents, but that grew and burst above sea level. We model the low-frequency signals as overpressurized gas bubbles that grow near the water-air interface, which require bubble radii of 50-220?m. Bubbles of this size and larger have been described in explosive subaqueous eruptions for more than a century, but we present a unique geophysical record of this phenomenon. We propose that the dominant role of seawater during the effusion of gas-rich magma into shallow water is to repeatedly produce a gas-tight seal near the vent. This resealing mechanism leads to sequences of violent explosions and the release of large, bubble-forming volumes of gas—activity we describe as hydrovulcanian.
DS201911-2545 2019	Maria, A.H., Denny, F.B., DiPietro, J.A., Howard, K.F., King, M.D.	Geochemistry and Sr-Nd isotopic compositions of Permian ultramafic lamprophyres in the Reelfoot Rift- Rough Creek granen, southern Illinois and northwestern Kentucky.	Lithos, Vol. 340-341, pp. 191-208.	United States, Illinois, Kentucky	carbonatite
	Abstract: Permian dikes, sills, and diatremes in southern Illinois and northwestern Kentucky (the Omaha, Wildcat Hills, Cottage Grove, Will Scarlet, Williams, Grant, and Clay Lick intrusions) share similar geochemistry and are classified as ultramafic lamprophyres. Major element compositions are 30-35 wt% SiO2, 6-7% Al2O3, 12-14% FeOt, 16-19% MgO, 3-5% TiO2, 11-16% CaO, 0.1-0.7% Na2O, 1.2-2.7% K2O, and 0.4-1.3% P2O5. The Grant Intrusive Breccia is an exception, with lower SiO2, Al2O3, FeOt, MgO, TiO2, and higher CaO. Typically, these rocks are fine grained, with phlogopite, serpentinized olivine ( Fo88), diopside, perovskite, Fe-Ti-spinel, apatite, and calcite. Blocky and lath-shaped pseudomorphs in some samples probably represent melilite, which would make the rocks alnöites. The Grant and Williams diatremes contain sedimentary and igneous clasts (including amphibole megacrysts) within a carbonate-rich matrix. The Grant exhibits pelletal lapilli and is characterized as a lamprophyre?carbonatite tuffisite. Trace element patterns exhibit enrichment of LREE, strong REE fractionation, and relative depletions of K, Sr, Zr, and Hf, closely matching those of the mela-aillikites of Aillik Bay, Labrador. The Grant Intrusive exhibits even greater REE enrichment and notable peaks at Nb, La, and Ce. Geochemical characteristics, including distributions of 143Nd/144Nd and 87Sr/86Sr, are consistent with near-primary melts from a metasomatized peridotite source containing phlogopite-rich veins. Derivation of the lamprophyres from carbonate-rich parental melts similar to the Grant Intrusive could be achieved by separation of carbonatite. A narrow range of initial 87Sr/86Sr (0.70301-0.70449), and initial ?Nd (3.7-5.1), suggests a uniform mantle source close to Bulk Earth. T-depleted mantle model ages range from 540 to 625 Ma, and might correlate with timing of enrichment of a lithospheric mantle source during the breakup of Rodinia.
DM201911-2648 2019	Mining.com	US steps up efforts to limit China's control of critical minerals.	Defense Metals Corporation, Sept. 30, 2p.	United States	News item - REE
DM201911-2657 2019	Rapaport	Lightbox to debut at Bloomingdale's, Reeds.	rapaport, Oct. 17, 1/2p.	United States, New York	News item - Lightbox
DM201911-2710 2019	Rough-polished	MIT engineers develop "blackest black " material to date. Carbon nanotubes or CNTs	rough-polished.com, Oct. 28, 1/4p.	United States	News item - carbon
DS201911-2576 2019	Wright, E., Parisi, R.	This $3.2 million diamond is having 'surgery' to be more pink - if it survives, it could double in value.	cnbc.com, Oct. 8, 9p.	United States, New York	L.J. West Diamonds
DM201912-2856 2019	Creamers Mining Weekly	Diamond jewellery sales rise in US as precious gem prices fall.	creamersminingweekly, Nov. 14, 1/4p.	United States	News item - economics
DM201912-2861 2019	Diamante	Diamante's corporate payments pioneers advancement in global diamond industry through use of DLT making transactions fast, secure and traceable.	thechestnutpost.com, Nov. 1, 1p.	United States	News item - press release
DM201912-2887 2019	Diamonds.net	LVMH seals Tiffany deal for $ 16 bln ( 135.00 a share)	diamonds.net, Nov. 26, 1/4p.	United States	News item - LVMH
DM201912-2897 2019	JCK News Daily	LVMH ups offer to buy Tiffany to $ 16 Billion, report says.	jckonline.com, Nov. 22, 1/4p.	United States	News item - Tiffany
DM201912-2898 2019	JCK News Daily	LVMH outlines its post sale plans for Tiffany & Co.	jckonline.com, Nov. 27, 1p.	United States	News item - Tiffany
DM201912-2949 2019	Rough-polished	LVMH raises its bid for Tiffany	rough-polished.com, Nov. 25, 1/4p.	United States	News item - Tiffany
DM201912-2956 2019	The Israeli Diamond Industry	Expensive pink diamond goes to court. Christie's sued over $ 40 million claims it was stolen. Princie name of diamond 34.65 ct ( Golconda India mine)	en.israelidiamond.co.il, Nov. 8, 2p.	Europe, Italy, United States	News item - legal
DM201912-2958 2019	The Israeli Diamond Industry	Forevermark opens first US boutique.	en.israelidiamond.co.il, Nov. 11, 1/4p.	United States	News item - Forevermark
DS201912-2835 2019	Yang, Y-H., Wu, F-Y., Qiu-Li, L., Rojas-Agramonte, Y., Yang, J-H., Yang, L., Ma, Q., Xie, L-W., Huang, C., Fan, H-R., Zhao, Z-F., Xu, C.	In situ U-Th-Pb dating and Sr-Nd isotope analysis of bastnasite by LA-(MC)-ICP-MS.	Geostandards and Geoanalltical Research, Vol. 43, 3, pp. 543-565.	China, Europe, Sweden, Asia, Mongolia, United States, Africa, Malawi, Madagascar	REE
	Abstract: Bastnäsite is the end member of a large group of carbonate-fluoride minerals with the common formula (REE) CO3F•CaCO3. This group is generally widespread and, despite never occurring in large quantities, represents the major economic light rare earth element (LREE) mineral in deposits related to carbonatite and alkaline intrusions. Since bastnäsite is easily altered and commonly contains inclusions of earlier?crystallised minerals, in situ analysis is considered the most suitable method to measure its U?Th?Pb and Sr?Nd isotopic compositions. Electron probe microanalysis and laser ablation (multi?collector) inductively coupled plasma?mass spectrometry of forty?six bastnäsite samples from LREE deposits in China, Pakistan, Sweden, Mongolia, USA, Malawi and Madagascar indicate that this mineral typically has high Th and LREE and moderate U and Sr contents. Analysis of an in?house bastnäsite reference material (K?9) demonstrated that precise and accurate U?Th?Pb ages could be obtained after common Pb correction. Moreover, the Th?Pb age with its high precision is preferable to the U?Pb age because most bastnäsites have relatively high Th rather than U contents. These results will have significant implications for understanding the genesis of endogenous ore deposits and formation processes related to metallogenic geochronology research.
DM202001-0089 2019	JCK News	Signet now selling lab-created diamonds at all U.S. Banners.	jackonline.com, Dec. 14, 1/4p.	United States	News item - Signet
DM202001-0101 2019	Rough-polished	Blue diamonds are highlights at Phillips and Bonhams New York auctions.	rough-polished.com, Dec. 2, 1/4p.	United States	News item - economics
DM202001-0130 2019	The Lane Report	Implentation of a pilot plant/demonstration facility to grow large diamonds ( Conn Centre) Da Vinci holdings	Kentucky Advanced Materials Manufacturing, Dec. 27, 1p.	United States, Kentucky	News item - KAMM
DM202002-0232 2020	Creamers Mining Weekly	Carnegie Institution seeks cut of rising lab grown diamond sales.	creamersminingweekly, Jan. 10, /4p.	United States	News item - synthetics
DC202002-0314 2020	Diamante Blockchain LLC	Diamante Blockchain to showcase at Newchip's 2020 Q1 start up Expo.	DiamanteBlockchain.com, Jan. 27, 1p.	United States	News Item - Diamante
DM202002-0258 2020	Instore	De Beers Group industry services partners with RDI Diamonds in the United States.. Diamond grading reports.	instoremag.com, Jan. 28, 1p.	United States	News item - De Beers
DM202002-0267 2020	New York Times	How Tiffany moved 114,000 gems without being robbed.	NewYorkTimes.com, Jan. 13, 1/2p.	United States	News item - Tiffany
DM202002-0279 2020	Rough-polished	More women in the US buying diamond jewelry for themselves.	rough-polished, Jan. 9, 1/4p.	United States	News item - markets
DC202003-0475 2020	De Beers Group	De Beers Group industry services partners with RDI Diamonds Inc. in the US.	De Beers Group, Jan. 29, 1p.	United States	News item - press release
DM202003-0418 2020	JCK	De Beers to offer lab reports in the United States through RDI.	jcknews.com, Jan. 31, 1/4p.	United States	News item - De Beers, RDI
DM202003-0469 2020	The Israeli Diamond Institute	Over 99 carats found at Arkansas diamond park in 2019. History and listing.	israelidiamond.co.il, Jan. 30, 2p.	United States, Arkansas	News item - Crater of Diamonds
DS202003-0369 2019	Vertriest, W., Palke, A.C., Renfro, N.D.	Field gemology: building a research collection and understanding the development of gem deposits.	Gems & Gemology, Vol. 55, 4, pp. 490-511.	United States	GIA
	Abstract: GIA’s field gemology program was established in late 2008 to support research on geographic origin determination of colored gemstones. By building and maintaining an extensive collection of gem materials with known origins, GIA’s research scientists have been able to study and analyze rubies, sapphires, emeralds, and other gemstones using the best available reference samples. This has led to improved origin determination services while supporting numerous research and education projects. To date the collection has accumulated during more than 95 field expeditions on six continents and currently includes more than 22,000 samples. GIA’s field gemology efforts require a thorough understanding of the gem trade, including the evolution of gemstone deposits and the development of treatments. It is important to recognize potential new deposits and gemstone enhancement procedures immediately because they can change rapidly and leave a lasting impact on the trade. Field expeditions also involve documenting the mines and local conditions. These factors provide context for the gemstones and are becoming increasingly important in the eyes of the public.
DS202004-0505 2018	Cummings, D.I., Russell, H.A.J.	Glacial dispersal trains in North America.	Journal of Maps ( Taylor & Francis) on linkedin, Vol. 14, 2, pp. 476-485. pdf	United States, Canada	Glaciation, geomorphology, map
	Abstract: A map depicting glacial dispersal trains in North America has been compiled from published sources. It covers the Canadian Shield, the Arctic Islands, the Cordillera and Appalachian mountains, and Phanerozoic sedimentary basins south of the Shield. In total, 140 trains are portrayed, including those emanating from major mineral-deposit types (e.g. gold, base metal, diamondiferous kimberlite, etc.). The map took 10 years of on-and-off work to generate, and it culls data from over 150 years of work by government, industry, and academia. It provides a new tool to help companies find ore deposits in Canada: the trains are generally a better predictor of dispersal distance and direction than striations and streamlined landforms, the data typically depicted on surficial-geology maps, including the Glacial Map of Canada. It also gives new insight into sedimentation patterns and processes beneath ice sheets, a sedimentary environment that, because of its inaccessibility, remains poorly understood and controversial.
DM202004-0592 2020	Diamonds.net	Tiffany postpones release of new collection amid pandemic.	diamonds.net, March 26, 1/4p.	United States	News item - Tiffany
DS202004-0509 2020	Elling, R.P., Stein, S., Stein, C.A., Keller, G.R.	Tectonics implications of the gravity signatures of the Midcontinent Rift and Grenville Front.	Tectonophysics, Vol. 778, 228369, 6p. Pdf	United States, Canada	midcontinent rift
	Abstract: North America's Midcontinent Rift (MCR) and Grenville Front (GF) jointly record aspects of the complex history of the assembly of Rodinia. The ~1100 Ma MCR, remaining from a failed major rifting event, is exposed along Lake Superior and well defined by gravity, magnetic, and seismic data. The GF, which results from collisions with Laurentia, is exposed in and identified by seismic and potential field data in Canada. In the eastern U.S., lineated gravity highs extending southward from Michigan to Alabama, along the trend of the front in Canada, have been interpreted either as a buried Grenville Front or as part of the MCR's east arm. We explore this issue by examining the gravity signatures of the MCR and GF. Both the MCR's arms have pronounced gravity highs, with the west arm's greater than the east arm's. Combining the gravity observations with seismic data suggests that the west arm contains 20-25 km thickness of volcanics, whereas the east arm contains 10-15 km of volcanics. Along the Grenville Front in Canada, thickened crust along the northern portion causes a broad gravity low, whereas the stacked thrusts along the southern portion cause essentially no gravity signature. Hence the lineated gravity highs in the eastern U.S. appear similar to those along the remainder of the MCR, and unlike those on either portion of the GF. These data favor the gravity anomalies traditionally interpreted as the Grenville Front in the eastern U.S. as instead being part of the MCR's east arm. A thrust sheet structure like that of the southern Canadian Grenville Front - which would have essentially no gravity effect - could also be present along the MCR's east arm, as implied by recent EarthScope seismic data.
DM202004-0609 2020	Idex online	Tiffany reports $ 4 bln sales and looks to future after coronavirus.	idexonline.com, March 23, 1/2p.	United States	News item - Tiffany
DS202004-0523 2020	Kibikas, W.M., Carpenter, B.M., Ghassemi, A.	Mechanical strength and physical properties of Oklahoma's igneous basement.	Tectonophysics, Vol. 777, 228336, 15p. Pdf	United States, Oklahoma	geophysics, seismics
	Abstract: From 2009 to 2016, a drastic increase in seismic activity occurred in the Central and Eastern US (CEUS), particularly in the Oklahoma-Kansas region. The majority of hypocenters were focused in the crystalline basement rock. Information regarding the physical properties (elastic wave velocity, peak strength, etc.) of rocks in the CEUS basement to date is sparse. Forecasting future seismic hazard and predicting the in situ response of the crystalline basement requires their geomechanical parameters be adequately constrained. This work assesses the mechanical and petrophysical properties of several sets of basement rocks from Oklahoma to provide a better framework for understanding intraplate seismicity and overall basement deformation in the continental United States. Laboratory experiments were conducted with granite, rhyolite and diabase basement rock samples collected from southern Oklahoma. Evolution of compressional and shear wave velocity with increasing confinement was measured through a series of ultrasonic velocity tests. A suite of uniaxial and triaxial tests were conducted to measure the elastic and inelastic deformation behavior of the basement rocks. Deformation data was evaluated using the Mohr-Coulomb criterion and compared with additional preexisting deformation data of igneous basement rocks. Dynamic and static elastic properties compare favorably with available field measurements and demonstrate the role physical properties can play in varying mechanical behavior. Granitic samples demonstrate moderate variation of intrinsic physical properties can alter elastic properties and failure behavior significantly. Water-weakening in the basement rocks may indicate fluid-assisted processes such as stress corrosion cracking enhance deformation in the crystalline basement.
DS202004-0526 2020	Laturtrie. B., Ross, P-S.	Phreatomagmatic vs magmatic eruptive styles in maar-diatremes: a case study at Twin Peaks, Hopi Buttes volcanic field, Navajo Nation, Arizona.	Bulletin of Volcanology, Vol. 82, 28.	United States, Arizona	magmatism
	Abstract: The Hopi Buttes volcanic field (HBVF) is located on the Colorado Plateau, Northern Arizona. In this Miocene volcanic field, the erosion level increases southward, allowing the study of maar-diatreme volcanoes from top (posteruptive crater infill and ejecta ring) to bottom (lower diatreme). The Twin Peaks volcanic complex consists mostly of two hills (North Peak and South Peak) with thick lavas at their summits and pyroclastic rocks underneath. In the HBVF, such volcanic remnants have received little scientific attention so far, despite their relative abundance. Our field observations allow us to interpret the North and South Peaks as remnants of two maar-diatreme volcanoes which evolved into lava lakes filling the craters. Within the complex, we distinguish four volcanic units (from unit 1 at the bottom to unit 4 at the top). On the basis of the field description of the deposits and the componentry measurements, we suggest that unit 1 is phreatomagmatic, unit 2 is phreato-strombolian (with mixed phreatomagmatic and strombolian characteristics), unit 3a is phreato-hawaiian (with mixed phreatomagmatic and hawaiian characteristics), unit 3b is hawaiian (formed by lava fountains) and unit 4 consists of lava lakes filling the maar craters. There is therefore a progressive evolution from a purely phreatomagmatic eruptive style, which excavated the craters and diatremes and partly filled them, to magmatic explosive to nonexplosive eruptive styles, which filled the maar craters up to the pre-eruptive surface. We discuss traditional criteria used to distinguish phreatomagmatic from magmatic eruptive styles in ultramafic to mafic maar-diatreme volcanoes.
DS202004-0530 2020	Post, J.E., Feather, R., Butler, J.E.	Kimberley diamond acquired by the Smithsonian Institution and its flourescence and phosphorescence characteristics revealed. 55.08 ct	Journal of Gemmology, Vol. 37, 1, pp. 14, 15.	Africa, South Africa, United States	flourescence
DS202005-0736 2020	Hinze, W. J,, Chandler, V.W.	Reviewing the configuration and extent of the Midcontinent rift system.	Precambrian Research, Vol. 342, 18p. Pdf	United States, Michigan, Ohio, Oklahoma	geophsyics - magnetics
	Abstract: Uncertainty exists in the configuration and extent of the Midcontinent Rift System (MRS) because of deficiencies in geophysical data and limited information from outcrops and basement drill holes. Additional ambiguity is caused by misunderstanding the definition of continental rifts. Six principal problematic regions in mapping the MRS are described. Gravity and magnetic data, supported by drill hole and seismic reflection data, show that the Eastern Lake Superior rift segment of the MRS continues south from Lake Superior and connects to a much narrower rift in northern Lake Michigan. The eastern margin of this transition is ill defined because of the lack of definitive anomalies and supporting seismic and drill hole data, but is interpreted to occur near the U.S. - Canada border. The rift segment in southeastern Michigan intersects the Grenville Front and likely continues eastwards in modified form to near the boundary with Canada. Cross-cutting gravity and magnetic signatures may reflect Grenvillian overthrusts near the terminus of the MRS in Michigan. The proposed southerly extensions of both branches of the rift system into Oklahoma and Ohio are based primarily on positive gravity anomalies, but neither postulated extension appears to be associated with rifted troughs. Rather the gravity anomalies of the western branch are related to intrusive mafic rocks and those of the eastern branch are most likely related to deep crustal metamorphic rocks thrust into juxtaposition with less dense crust by Grenville orogenesis. Recent paleomagnetic investigations, in conjunction with high-resolution radiometric dating, imply that the MRS developed during the rapid southward movement of Laurentia during a quiescent period along its eastern continental margin. Massive magmatic activity accompanying the rifting was likely due to rising mantle material that was displaced by subducted lithosphere along the southern margin. The heated crust was made more ductile, fostering rifting due to extensional stresses. The Nipigon Embayment remains as a possible candidate for an early "third branch" of the MRS, but current evidence is insufficient to include the Fort Wayne "rift" as part of the MRS. Future studies of the MRS would be well-served by new age-dating and high-resolution seismic studies of the lithosphere.
DS202005-0741 2020	Keller, D., Ague, J.J.	Quartz, mica, and amphibole exsolution from majoritic garnet reveals ultra-deep sediment subduction, Appalachian region.	Science Advances, doi. 10.1126/sciadv.aay5178 13p. Pdf	United States, Connecticut	UHT, HPG
	Abstract: Diamond and coesite are classic indicators of ultrahigh-pressure (UHP; ?100-kilometer depth) metamorphism, but they readily recrystallize during exhumation. Crystallographically oriented pyroxene and amphibole exsolution lamellae in garnet document decomposed supersilicic UHP majoritic garnet originally stable at diamond-grade conditions, but majoritic precursors have only been quantitatively demonstrated in mafic and ultramafic rocks. Moreover, controversy persists regarding which silicates majoritic garnet breakdown produces. We present a method for reconstructing precursor majoritic garnet chemistry in metasedimentary Appalachian gneisses containing garnets preserving concentric zones of crystallographically oriented lamellae including quartz, amphibole, and sodium phlogopite. We link this to novel quartz-garnet crystallographic orientation data. The results reveal majoritic precursors stable at ?175-kilometer depth and that quartz and mica may exsolve from garnet. Large UHP terranes in the European Caledonides formed during collision of the paleocontinents Baltica and Laurentia; we demonstrate UHP metamorphism from the microcontinent-continent convergence characterizing the contiguous and coeval Appalachian orogen.
DS202005-0762 2020	Smith, D.	Trace elements in Cr-pyrope from the Navajo volcanic field of the Colorado Plateau, SW USA, and implications for the mantle wedge during low angle subduction.	Lithos, doi.org/10.101016/j. lithos.2020.105460, 55p. Pdf	United States, Colorado	subduction
	Abstract: The zonation of trace elements in Cr-pyrope has been analyzed to investigate histories recorded by garnet in cool mantle and implications for processes in the mantle wedge during low-angle subduction. The garnets are from the Navajo Volcanic Field (NVF) of the Colorado Plateau in the southwestern United States. Their host rocks were emplaced between 30 and 24 Ma, not long after low-angle subduction of the Farallon plate and the Laramide orogeny. Twenty-seven of the 31 garnets are discrete fragments from diatremes of serpentinized ultramafic microbreccia (SUM). Many Ni and Mn values in those grains yield temperatures in and below the range 800 °C to 600 °C, consistent with inclusions of chlorite and other hydrous minerals. Gradients of Na, Ti, Mn, Ni, Y, REE, and other elements are common in the discrete grains. Diffusion calculations constrain possible histories of a garnet with growth zonation of Y and REE and retrograde zonation of Mn and Ni. The garnet must have formed and resided at temperatures below about 900 °C, and that zonation is unlikely to have been preserved from the Proterozoic. The Mn gradient is consistent with cooling during the time period of low-angle Farallon subduction. Many of the discrete garnets grew from sources metasomatically enriched in Li, Na, Ti, and Zr, and they have distinctive high Li/Na. The high Li/Na is a likely consequence of Li metasomatism in the mantle wedge. Nb values in the Cr-pyrope fragments from northern SUM diatremes are lower than those of most garnets from kimberlites, but the low values are similar to and lower than those of pyrope in peridotite emplaced in orogenic belts; those northern diatremes also host lawsonite eclogite and garnetite. Most but not all relatively Cr-rich discrete garnets (4 to 8 wt% Cr2O3) record enrichment in LREE but little enrichment in Ti and Zr; LREE enrichment by an aqueous fluid is consistent with chlorite inclusions in two of these garnets. Oriented lamellae of rutile and other phases are common, and one texture may record fluid interactions associated with interface-coupled dissolution-reprecipitation. Garnets from the four minette-hosted peridotites record markedly hotter temperatures than do the SUM-hosted grains, and they lack the high Li/Na and low Nb. Gradients of trace elements in minette-hosted garnets record metasomatism shortly before crustal emplacement, but that metasomatism resulted in a decrease of Nb and had little effect on Li/Na. The minette-hosted garnet peridotites may represent mantle residual from Proterozoic accretion of the Colorado Plateau. In contrast, at least some of the SUM-hosted garnets probably grew in rock eroded from the forearc wedge by low-angle subduction and emplaced below the NVF.
DM202006-0997 2020	Diamonds.net	Lightbox delays new production plant to Q1 2021.	diamonds.net, May 8, 1/4p.	United States, Oregon	News item - Lightbox
DM202006-1006 2020	Eterneva	Dr. Chodelka to advisory board. Synthetics	eterneva.com, May 27, 1p.	United States, Texas	News item - press release
DS202006-0919 2020	Flowers, R.M., Macdonald, F.A., Siddoway, C.S., Havranek, R.	Diachronous development of Great Unconformities before Neoproterozoic Snowlball Earth.	Proceedinds of the National Academy of Sciences, Vol. 117, 19, 9p. Pdf	United States, Colorado	geothermometry
	Abstract: The Great Unconformity marks a major gap in the continental geological record, separating Precambrian basement from Phanerozoic sedimentary rocks. However, the timing, magnitude, spatial heterogeneity, and causes of the erosional event(s) and/or depositional hiatus that lead to its development are unknown. We present field relationships from the 1.07-Ga Pikes Peak batholith in Colorado that constrain the position of Cryogenian and Cambrian paleosurfaces below the Great Unconformity. Tavakaiv sandstone injectites with an age of ?676 ± 26 Ma cut Pikes Peak granite. Injection of quartzose sediment in bulbous bodies indicates near-surface conditions during emplacement. Fractured, weathered wall rock around Tavakaiv bodies and intensely altered basement fragments within unweathered injectites imply still earlier regolith development. These observations provide evidence that the granite was exhumed and resided at the surface prior to sand injection, likely before the 717-Ma Sturtian glaciation for the climate appropriate for regolith formation over an extensive region of the paleolandscape. The 510-Ma Sawatch sandstone directly overlies Tavakaiv-injected Pikes granite and drapes over core stones in Pikes regolith, consistent with limited erosion between 717 and 510 Ma. Zircon (U-Th)/He dates for basement below the Great Unconformity are 975 to 46 Ma and are consistent with exhumation by 717 Ma. Our results provide evidence that most erosion below the Great Unconformity in Colorado occurred before the first Neoproterozoic Snowball Earth and therefore cannot be a product of glacial erosion. We propose that multiple Great Unconformities developed diachronously and represent regional tectonic features rather than a synchronous global phenomenon.
DS202006-0920 2020	Foster, A., Darbyshire, F., Schaeffer, A.	Anisotropic structure of the central North American craton surrounding the Mid-continent rift: evidence form Rayleigh waves.	Precambrian Research, Vol. 342, 18p. Pdf	United States, Canada	geophysics - seismics
DM202006-1015 2020	Idex online	Dig your own diamond mine re-opens after Covid-19.	idexonline.com, May 25, 1/p.	United States, Arkansas	News item - Crater of Diamonds
DS202006-0933 2020	Lutz, K,A., Long, M.D., Creasy, N., Deng, J.	Seismic anisotropy in the lowermost mantle beneath North America from SKS-SKKS splitting intensity discrepancies.	Physics of the Earth and Planetary Interiors, in press available, 51p. Pdf	United States, Canada	geophysics - seismics
	Abstract: We examined SKS-SKKS splitting intensity discrepancies for phases that sample the lowermost mantle beneath North America, which has previously been shown to exhibit seismic anisotropy using other analysis techniques. We examined data from 25 long-running seismic stations, along with 244 stations of the temporary USArray Transportable Array, located in the eastern, southeastern and western U.S. We identified 279 high-quality SKS-SKKS wave pairs that yielded well-constrained splitting intensity measurements for both phases. Of the 279 pairs, a relatively small number (15) exhibited discrepancies in splitting intensity of 0.4 s or greater, suggesting a contribution to the splitting of one or both phases from anisotropy in the lowermost mantle. Because only a small minority of SK(K)S phases examined in this study show evidence of being affected by lowermost mantle anisotropy, the traditional interpretation that splitting of these phases primarily reflects anisotropy in the upper mantle directly beneath the stations is appropriate. The discrepant pairs exhibited a striking geographic trend, sampling the lowermost mantle beneath the southern U.S. and northern Mexico, while other regions were dominated by non-discrepant pairs. We carried out ray theoretical modeling of simple anisotropy scenarios that have previously been suggested for the lowermost mantle beneath North America, invoking the alignment of post-perovskite due to flow induced by the impingement of the remnant Farallon slab on the core-mantle boundary. We found that our measurements are generally consistent with this model and with the idea of slab-driven flow, but relatively small-scale lateral variations in the strength and/or geometry of lowermost mantle anisotropy beneath North America are also likely present.
DM202006-1033 2020	Redditt	There is a Diamond mine in Arkansas that is open to the public. Visitors can keep whatever Gems they find. Till now Thousands of diamonds have been found since it opened.	https://ift.tt/2yMoVCO, via reddit https://ift.tt/2Wvgjcs	United States, Arkansas	News item - Crater of Diamonds
DC202006-1115 2020	Rio Tinto Diamonds	Rio Tinto contributes $ 10 million to support Covid-19 community initiatives across Canada and United States.	Rio Tinto, May 4, 1p.	Canada, United States	News item - press release
DM202007-1239 2020	Idex online	The biggest diamond Chutzpah. Russian gang switched bag of diamonds worth $ 5.8 mln and got away.	idexonline.com, June 4, 2p.	United States, Russia	News item - legal
DS202007-1154 2020	Kane, R.E.	America's Royal Gem Montana and Yogo sapphires.	incolorMagazine.com, Vol. winter pp. 30-39.	United States, Montana	deposit - Yogo sapphires
DM202007-1247 2020	Mining Magazine	USA rare earth to open processing plant.	miningmagazine.com, June 11, 1/4p.	United States, Colorado	News item - USA Rare Earth
DS202007-1166 2020	Newcombe, M.E., Plank, T., Barth, A., Asimov, P.D., Hauri, E.	Water in olivine magma ascent chronology: every crystal is a clock.	Journal of Volcanology and Geothermal Research, Vol. 398, 106872 17p. Pdf	United States, Hawaii	melting
	Abstract: The syneruptive decompression rate of basaltic magma in volcanic conduits is thought to be a critical control on eruptive vigor. Recent efforts have constrained decompression rates using models of diffusive water loss from melt embayments (Lloyd et al. 2014; Ferguson et al. 2016), olivine-hosted melt inclusions (Chen et al. 2013; Le Voyer et al. 2014), and clinopyroxene phenocrysts (Lloyd et al. 2016). However, these techniques are difficult to apply because of the rarity of melt embayments and clinopyroxene phenocrysts suitable for analysis and the complexities associated with modeling water loss from melt inclusions. We are developing a new magma ascent chronometer based on syneruptive diffusive water loss from olivine phenocrysts. We have found water zonation in every olivine phenocryst we have measured, from explosive eruptions of Pavlof, Seguam, Fuego, Cerro Negro and Kilauea volcanoes. Phenocrysts were polished to expose a central plane normal to the crystallographic `b' axis and volatile concentration profiles were measured along `a' and `c' axes by SIMS or nanoSIMS. Profiles are compared to 1D and 3D finite-element models of diffusive water loss from olivine, with or without melt inclusions, whose boundaries are in equilibrium with a melt undergoing closed-system degassing. In every case, we observe faster water diffusion along the `a' axis, consistent with the diffusion anisotropy observed by Kohlstedt and Mackwell (1998) for the so-called `proton-polaron' mechanism of H-transport. Water concentration gradients along `a' match the 1D diffusion model with a diffusivity of 10-10 m2/s (see Plank et al., this meeting), olivine-melt partition coefficient of 0.0007­-0.002 (based on melt inclusion-olivine pairs), and decompression rates equal to the best-fit values from melt embayment studies (Lloyd et al. 2014; Ferguson et al. 2016). Agreement between the melt embayment and water-in-olivine ascent chronometers at Fuego, Seguam, and Kilauea Iki demonstrates the potential of this new technique, which can be applied to any olivine-bearing mafic-intermediate eruption using common analytical tools (SIMS and FTIR). In theory, each crystal is a clock, with the potential to record variable ascent in the conduit, over the course of an eruption, and between eruptions.
DM202008-1480 2020	Creamers Mining Weekly	Alrosa partners with US retailer to launch responsibly-created jewellery collection. Brilliant Earth and Alrosa's Diamonds That Care.	creamersmining weekly.com, July 28, 1/4p.	Russia, United States	News item - Alrosa
DM202008-1484 2020	Diamonds.net	Christie's broke records last night with $ 2.1 mln diamond sale - showing that recession proof shoppers have warmed to buying jewelery onlline.	diamonds.net, July 1, 1/4p.	United States	News item - Christies
DM202008-1490 2020	Diamonds.net	12 ct blue diamond smashes estimate at Christie's.	diamonds.net, July 12, 1/4p.	United States	News item - Christies
DS202008-1385 2020	Drenth, B.J., Souders, A.K., Schulz, K.J., Feinberg, J.M., Anderson, R.R., Chandler, V.W., Cannon, W.L., Clark, R.J.	Evidence for a concealed Midcontinent Rift related northeast Iowa intrusive complex.	Precambrian Research, in press available, 43p. Pdf	United States, Iowa	geophysics - seismics
	Abstract: Large amplitude aeromagnetic and gravity anomalies over a ~9500 km2 area of northeast Iowa and southeast Minnesota have been interpreted to reflect the northeast Iowa intrusive complex (NEIIC), a buried intrusive igneous complex composed of mafic/ultramafic rocks in the Yavapai Province (1.8-1.7 Ga). Hundreds of meters of Paleozoic sedimentary cover and a paucity of basement drilling have prevented detailed studies of the NEIIC. Long considered, but not proven, to be related to the ~1.1 Ga Midcontinent Rift System (MRS), the NEIIC is comparable in areal extent to the richly mineralized Duluth Complex and is similarly located near the margin of the MRS. New geochronological and geophysical data together support an MRS affinity for the NEIIC. A dike swarm imaged in aeromagnetic data is cut by intrusions of the NEIIC, and a new apatite U-Pb date of ~1170 Ma on one of the dikes thus represents a maximum age for the NEIIC. A minimum age constraint is suggested by (1) large-volume magmatism associated with the MRS that was the last such event to affect the region; and (2) the presence of reversely magnetized dikes, similar in character to MRS-related dikes elsewhere, that cut several intrusions of the NEIIC. The NEIIC is largely characterized by the presence of multiple zoned intrusions, many of which contain large volumes of mafic-ultramafic rocks and have strong geophysical similarities to alkaline intrusive complexes elsewhere, including the MRS-related Coldwell Complex of Ontario. The largest of the zoned intrusions are ~40 km in diameter and are interpreted to have thicknesses of many kilometers. Suspected faults, alignments of intrusions, and intrusive margins tend to be aligned along northwest and northeast trends that match the trends of the Belle Plaine fault zone and Fayette structural zone, both previously interpreted as pre-MRS, possibly lithospheric-scale discontinuities that may have controlled NEIIC emplacement. These interpretations collectively imply notable potential for the NEIIC to host several different types of undiscovered base metal and critical mineral deposits.
DM202008-1500 2020	Idex online	Tiffany wins $ 12 mln battle against fake websites.	idexonline.com, July 7, 1/2p.	United States	News item - Tiffany
DS202008-1404 2020	Jeffay, J.	Daytrip Mom finds 2.23 carat brown diamond at "Dig your own" mine.	Idexonline Memo , June 30, 1p.	United States, Arkansas	deposit - Crater of Diamonds
DS202008-1418 2020	Lutz, K.A., Long, M.D., Creasy, N., Deng, J.	Seismic anisotropy in the lowermost mantle beneath North America from SKS-SKKS splitting intensity discrepancies.	Physics of the Earth and Planetary Interiors, Vol. 305, 106504, 15p. Pdf	United States	geophysics - seismics
	Abstract: We examined SKS-SKKS splitting intensity discrepancies for phases that sample the lowermost mantle beneath North America, which has previously been shown to exhibit seismic anisotropy using other analysis techniques. We examined data from 25 long-running seismic stations, along with 244 stations of the temporary USArray Transportable Array, located in the eastern, southeastern and western U.S. We identified 279 high-quality SKS-SKKS wave pairs that yielded well-constrained splitting intensity measurements for both phases. Of the 279 pairs, a relatively small number (15) exhibited discrepancies in splitting intensity of 0.4 s or greater, suggesting a contribution to the splitting of one or both phases from anisotropy in the lowermost mantle. Because only a small minority of SK(K)S phases examined in this study show evidence of being affected by lowermost mantle anisotropy, the traditional interpretation that splitting of these phases primarily reflects anisotropy in the upper mantle directly beneath the stations is appropriate. The discrepant pairs exhibited a striking geographic trend, sampling the lowermost mantle beneath the southern U.S. and northern Mexico, while other regions were dominated by non-discrepant pairs. We carried out ray theoretical modeling of simple anisotropy scenarios that have previously been suggested for the lowermost mantle beneath North America, invoking the alignment of post-perovskite due to flow induced by the impingement of the remnant Farallon slab on the core-mantle boundary. We found that our measurements are generally consistent with this model and with the idea of slab-driven flow, but relatively small-scale lateral variations in the strength and/or geometry of lowermost mantle anisotropy beneath North America are also likely present.
DM202008-1511 2020	Resolve	Resolve and Diamond Development Initiative ( DDI) join forces to better support responsibly sources and artisanally mined diamonds and other minerals.	RESOLVE, July 22, 1p.	United States	News item - press release
DM202008-1517 2020	Rough-polished	Christie's emerald cut diamond 28.86 ct sells for $ 2.1 mln on an online auction.	rough-polished.com, July 3, 1/4p.	United States	News item - emerald
DM202008-1561 2020	Rough-polished	GIA and IBM Research join forces to transform diamond grading.	rough-polished.com, July 29, 1/4p.	United States	News item - GIA
DM202009-1688 2020	Creamers Mining Weekly	The Trump administration appointed a co-ordinator for policy in the Arctic ( melting due to climate change).	creamersminingweekly.com, July 30, 1/4p.	United States	News item - legal
DM202009-1777 2020	Rough-polished	Tiffany to offer traceability report for its larger diamonds from October.	rough-polished.com, Aug. 20, 1/4p.	United States	News item - Tiffany
DM202009-1785 2020	Rough-polished	LVMH and Tiffany push back deal deadline by three months.	rough-polished.com, Aug. 28, 1/4p.	United States	News item - LVMH, Tiffany
DM202010-1911 2020	Diamonds.net	GIA on Covid 19, automation and synthetics.	diamonds.net, Sept. 10, 1/4p.	United States	News item - GIA
DS202010-1839 2020	Drenth, N.J., Souders, A.K., Schulz, K.J., Feinberg, J.M., Anderson, R.R., Chandler, V.W., Cannon, W.F., Clark, R.J.	Evidence for a concealed Midcontinent Rift related northeast Iowa intrusive complex.	Precambrian Research, Vol. 347, 105845, 23p. Pdf	United States, Iowa	geochronology, geophysics - gravity
	Abstract: Large amplitude aeromagnetic and gravity anomalies over a ~9500 km2 area of northeast Iowa and southeast Minnesota have been interpreted to reflect the northeast Iowa intrusive complex (NEIIC), a buried intrusive igneous complex composed of mafic/ultramafic rocks in the Yavapai Province (1.8-1.7 Ga). Hundreds of meters of Paleozoic sedimentary cover and a paucity of basement drilling have prevented detailed studies of the NEIIC. Long considered, but not proven, to be related to the ~1.1 Ga Midcontinent Rift System (MRS), the NEIIC is comparable in areal extent to the richly mineralized Duluth Complex and is similarly located near the margin of the MRS. New geochronological and geophysical data together support an MRS affinity for the NEIIC. A dike swarm imaged in aeromagnetic data is cut by intrusions of the NEIIC, and a new apatite U-Pb date of ~1170 Ma on one of the dikes thus represents a maximum age for the NEIIC. A minimum age constraint is suggested by (1) large-volume magmatism associated with the MRS that was the last such event to affect the region; and (2) the presence of reversely magnetized dikes, similar in character to MRS-related dikes elsewhere, that cut several intrusions of the NEIIC. The NEIIC is largely characterized by the presence of multiple zoned intrusions, many of which contain large volumes of mafic-ultramafic rocks and have strong geophysical similarities to alkaline intrusive complexes elsewhere, including the MRS-related Coldwell Complex of Ontario. The largest of the zoned intrusions are ~40 km in diameter and are interpreted to have thicknesses of many kilometers. Suspected faults, alignments of intrusions, and intrusive margins tend to be aligned along northwest and northeast trends that match the trends of the Belle Plaine fault zone and Fayette structural zone, both previously interpreted as pre-MRS, possibly lithospheric-scale discontinuities that may have controlled NEIIC emplacement. These interpretations collectively imply notable potential for the NEIIC to host several different types of undiscovered base metal and critical mineral deposits.
DM202010-1918 2020	Forbes	Arkansas man finds massive 9.07 carat diamond that he suspected was a piece of glass. He named it Kinard Friendship Diamond. Second largest found ( 16.37 Amarillo Starlight in Aug 1975).	forbes, Sept. 23, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DM202010-1924 2020	JCK Online	LVMH calls off Tiffany & Co. acquisition. ( taxes in USA)	jackonline.com, Sept. 9, 1/2p.	United States	News item - Tiffany
DS202010-1858 2016	Lorenz, V. Suhr, P., Suhr, S.	Phreatomagmatic maar-diatreme volcanoes and their incremental growth: a model.	IN: Nemeth, K., Carrasco-Nunez, G., Aranda-Gomez, J.J., Smith, I.E.M. eds. Monogenetic volcanism GSL Special Volume, Vol 446, 31p. Pdf * note date	Europe, Germany , United States, Australia, Mexico	maars
	Abstract: We report here a growth model for phreatomagmatic maar-diatreme volcanoes with respect to the number of eruptions documented in the tephra beds of maar tephra rings and the upper bedded diatreme facies. We show that the number of tephra beds in large diatremes is larger than that in maar tephra rings. Base surges that lack sufficient momentum to scale high maar crater walls deposit their tephra only inside the crater. Thus the total number of eruptions at large maar-diatreme volcanoes will be larger than the number recorded in maar tephra rings. As many maar-diatreme volcanoes erupt dominantly accidental clasts, an incremental mathematical model was applied to study the growth of diatremes. The model is based only on the ejection of distinct amounts of accidental clasts per unit eruption and the chosen number of eruptions is assumed to be identical. The incremental growth of cone-shaped diatremes follows cube-root functions with respect to diameter and depth and slows down with ongoing eruptions. In nature, small and large maar-diatreme volcanoes are formed and filled syn-eruptively, mostly by tephra, depending on the duration and quantity of magma involved in phreatomagmatic eruptions. In our opinion, this mathematical model is the only current method able to model the growth of diatremes.
DM202011-2074 2020	Bates, R.	A murder is forever. Mystery novel set in NYC's diamond district.	JCKonline.com, Oct. 9, 1/4p.	United States, New York	News item - book
DM202011-2106 2020	Globe & Mail	A faux diamond in the rough? Charles & Covards's revenue has been stagnant .. Making moves for turnaround - moissanite.	Globe&mail.com , Sept. 30, 1p.	United States, North Carolina	News item - moissanite
DM202011-2137 2020	Rough-polished	De Beers LGD Lightbox expands to independents in the USA and Canada.	rough-polished.com, Oct. 8, 1/4p.	United States, Canada	News item - Lightbox
DS202011-2068 2020	Woodruff, L.G., Schulz, K.J., Nicholson, S.W., Dicken, C.L.	Mineral deposits of the Mesoproterozoic Midcontinent rift system in the Lake Superior region - a space and time classification. Not specific to diamonds	Ore Geology Reviews, Vol. 126, 103716, 21p. Pdf	Canada, United States	tectonics
	Abstract: The Mesoproterozoic Midcontinent Rift System (MRS) of North America hosts a diverse suite of magmatic and hydrothermal mineral deposits in the Lake Superior region where rift rocks are exposed at or near the surface. Historically, hydrothermal deposits, such as Michigan’s native copper deposits and the White Pine sediment-hosted stratiform copper deposit, were major MRS metal producers. On-going exploration for and potential development of copper-nickel sulfide deposits hosted by the Duluth Complex of Minnesota and the opening of the Eagle nickel mine in Michigan indicate an expanding interest in MRS magmatic deposits. MRS hydrothermal and magmatic mineral deposits, many of which are significant past, present, and likely future providers of critical minerals, here are placed into a space and time metallogenic framework. To construct this framework, regional MRS mineral deposits extracted from the U.S. Geological Survey Mineral Resources Data System (MRDS) and the Ontario Ministry of Energy, Northern Development and Mines Mineral Deposit Inventory (MDI) were supplemented by other known and recently recognized mineral deposits described in the literature. All mineral deposits were classified by deposit type, host rock age and type, and estimated timing of mineralization. Deposits were then put into a tectonic evolutionary framework (stages) for the MRS, which shows that deposits formed within discrete spatial and temporal stages of rift evolution. Each stage of rift evolution is characterized by specific mineral deposit types that are largely confined both by their physical location in rift rocks and type and timing of mineralization. Examples include MRS nickel-rich conduit-type magmatic sulfide deposits, which are restricted to an early magmatic stage MRS history when magma compositions were characterized by Ni-rich picrites and high Mg basalts. In contrast, contact-type magmatic sulfide deposits with Cu > Ni were derived from more evolved Al-rich tholeiitic magmas that dominated a later time of voluminous magmatic activity. Hydrothermal sediment-hosted stratiform chalcocite mineralization along the margins of western Lake Superior in Michigan is economic only where fluid flow through red beds was concentrated by structures along the margins of a post-volcanic MRS sedimentary basin. Widespread native Cu and native Ag mineralization occurred about 40 million years after formation of host basalt lava flows and interflow sedimentary rocks. These descriptions of the diverse mineral deposits in the Lake Superior region cataloged within the space of the local and regional geology and over the more than 60-million-year mineralizing history of the MRS are indicative of the complex and at times overlapping magmatic and hydrothermal mineral systems that operated within this major large igneous province.
DM202012-2259 2020	5News	Fayetteville man finds 4.49 carat canary yellow diamond at Crater of Diamonds State Park.	5newsonline.com, Nov. 3, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DS202012-2204 2020	Bassoo, R., Refus, K.S.	Finders Keepers: Crater of Diamonds	Gems & Gemology, Vol. 56, 2, summer pp. 311-314.	United States, Arkansas	deposit - Crater of diamonds
	Abstract: There’s only one place on earth where the general public can prospect for diamonds directly from a primary kimberlite pipe: Crater of Diamonds State Park. This park is nestled among the pines, 100 miles off the interstate near the town of Murfreesboro, Arkansas. It boasts a network of scenic walking trails, picnic sites, and campsites. At its Diamond Discovery Center, visitors can learn about the local geology. Staff are also on hand to identify any minerals that are taken home, per their "finders, keepers" policy. The park is an ideal spot for a field trip. The state also hosts many other unusual igneous rocks, including carbonatite, lamprophyre, and lamproite. With this in mind, our university petrology class piled into a van to visit Arkansas and learn about mantle-derived magmas and associated volcanism. As a side quest, we wanted to try prospecting.
DM202012-2275 2020	Creamers Mining Weekly	De Beers says US, China diamond jewellery demand stable.	creamers mining weekly, Nov. 18, 1/4p.	United States, China	News item - markets
DM202012-2288 2020	Diamonds.net	How Tiffany and LVMH kissed and made up.	Diamonds.net, Nov. 18, 1/4p.	United States	News item - Tiffany, LVMH
DM202012-2290 2020	Forbes	Lightbox opens $ 94 million lab-grown diamond facility, partners with Blue Nile.	Forbes, Nov. 2, 12p. Pdf	United States, Oregon	News item - De Beers, Blue Nile
DM202012-2291 2020	Hatelberg, J.	The world's most glamourous quarantine project .. Replica of the Hope Diamond.	https://www.nytimes. com/2020/11/28/ style/hope- diamond-story-smithsonian- copy.html, Nov. 27, 2p.	United States	News item - Hope Diamond
DS202012-2219 2020	Hoover, W.F., Page, F.Z., Schulze, D.J., Kitajima, K., Valley, J.W.	Massive fluid influx beneath the Colorado Plateau ( USA) related to slab removal and diatreme emplacement: evidence from oxygen isotope zoning in eclogite xenoliths.	Journal of Petrology, in press available, 52p. Pdf	United States, Colorado Plateau	eclogite
	Abstract: The Colorado Plateau has undergone as much as 1.8?km of uplift over the past 80?Ma, but never underwent the pervasive deformation common in the neighboring tectonic provinces of the western USA. To understand the source, timing and distribution of mantle hydration, and its role in plateau uplift, garnets from four eclogite xenoliths of the Moses Rock diatreme (Navajo Volcanic Field, Utah, USA) were analyzed in situ for ?18O by secondary ion mass spectrometry. These garnets have the largest reported intra-crystalline oxygen isotope zoning to date in mantle-derived xenoliths with core-to-rim variations of as much as 3‰. All samples have core ?18O values greater than that of the pristine mantle (?5.3‰, mantle garnet as derived from mantle zircon; Valley et al., 1998; Page et al., 2007) consistent with an altered upper oceanic crust protolith. Oxygen isotope ratios decrease from core to rim recording interaction with a low-?18O fluid at high temperature, likely derived from serpentinite in the foundering Farallon slab. All zoned samples converge at a ?18O value of ?6‰, regardless of core composition, suggesting that fluid infiltration was widely distributed. Constraints on the timing of this fluid influx, relative to diatreme emplacement, can be gained from diffusion modeling of major element zoning in garnet. Modeling using best-estimates of peak metamorphic conditions (620ºC, 3.7?GPa) yield durations of?
DM202012-2297 2020	jCK	WD settles litigation with Pure Grown, IIa technologies. M7D Corp.	JCKonline.com, Nov. 26, 1p.	United States	News item - Carnegie
DM202012-2309 2020	Rough-polished	LVMH and Tiffany discuss reducing price of deal.	Rough-Polished.com, Oct. 29, 1/4p.	United States, Europe, France	News item - LVMH, Tiffany
DM202012-2318 2020	Rough-polished	Diamond growing technology to be discussed at November webinar.	Rough-Polished.com, Nov. 10, 1/4p.	United States	News item - synthetics
DS202012-2252 2020	Sun, C., Dasgupta, R.	Thermobarometry of CO2-rich, silica-undersaturated melts constrains cratonic lithosphere thinning through time in areas of kimberlitic magmatism.	Earth and Planetary Letters, Vol. 550, 116549, 13p.	Global, United States, Wyoming, Canada, Northwest Territories, Europe, Baltic, India	geothermometry
	Abstract: Cratonic lithosphere is believed to have been chemically buoyant and mechanically resistant to destruction over billions of years. Yet the absence of cratonic roots at some Archean terrains casts doubt on the craton stability and longevity on a global scale. As unique mantle-derived melts at ancient continents, silica-poor, kimberlitic melts are ideal tools to constrain the temporal variation of lithosphere thickness and the processes affecting the lithosphere root. However, no reliable thermobarometer exists to date for strongly silica-undersaturated, mantle-derived melts. Here we develop a new thermobarometer for silica-poor, CO2-rich melts using high-temperature, high-pressure experimental data. Our barometer is calibrated based on a new observation of pressure-dependent variation of Al2O3 in partial melts saturated with garnet and olivine, while our thermometer is calibrated based on the well-known olivine-melt Mg-exchange. For applications to natural magmas, we also establish a correction scheme to estimate their primary melt compositions. Applying this liquid-based thermobarometer to the estimated primary melt compositions for a global kimberlite dataset, we show that the equilibration depths between primary kimberlite melts and mantle peridotites indicate a decrease of up to ?150 km in cratonic lithosphere thickness globally during the past ?2 Gyr. Together with the temporal coupling between global kimberlite frequency and cold subduction flux since ?2 Gyr ago, our results imply a causal link between lithosphere thinning and supply of CO2-rich melts enhanced by deep subduction of carbonated oceanic crusts. While hibernating at the lithosphere root, these melts chemically metasomatize and rheologically weaken the rigid lithosphere and consequently facilitate destruction through convective removal in the ambient mantle or thermo-magmatic erosion during mantle plume activities.
DM202012-2346 2020	Yahoo	Lightbox ramps up lab diamond production with new Oregon facility.	yahoo.com, Oct. 29, 1/4p.	United States, Oregon	News item - Lightbox
DS202102-0179 2020	Cohen, T.	Crowning glory ( Almod Diamonds) patented diamond cut.	Gems & Jewellery, Vol. 29, 4, pp. 42-44. pdf	United States, New York	diamond cutting
DM202102-0269 2021	Diamonds.net	GIA spots rare inscription fraud in simulant. ( moissanite)	diamonds.net, Jan. 27, 1p.	United States, California	News item - synthetics
DM202102-0280 2021	Jewellery Focus	Green Rocks created diamonds becomes first lab grown grower.	Jewellery Focus, Jan. 14, 1/4p.	United States, Florida	News item - synthetics
DM202102-0336 2021	Tiffany & Co.	Tiffany presents its preliminary holiday period sales results worldwide net sales for the holiday period reach record high.	Tiffany & Co., Jan. 5, 1p.	United States, Global	News item - press release
DM202102-0337 2021	TKKtoday	More than 80 carats of diamonds discovered in Arkansas during record-breaking year.	tkktoday.com, Jan. 27, 1/4p.	United States, Arkansas	News item - Crater of Diamonds
DM202103-0459 2021	Diamonds.net	Diamonds with fake inscriptions turn up at GIA.	Diamonds.net, Feb. 23, 1/4p.	United States	News item - synthetics
DM202103-0460 2021	Diamonds.net	US polished imports down almost 40% in 2020.	Diamonds.net, Feb. 24, 1/4p.	United States	News item - markets
DS202103-0392 2020	Latutrie, B., Ross, P-S.	What lithic clasts and lithic-rich facies can tell us about diatreme processes: an example at Round Butte, Hopi Buttes volcanic field, Navajo Nation, Arizona.	Journal of Volcanology and Geothermal Research ( researchgate), 34p. Pdf	United States, Arizona	diatremes
	Abstract: Round Butte (Hopi Buttes volcanic field, Arizona) exposes a diatreme 170-190 m across, 190 m below the pre-eruptive surface. The central part of the massif is 130-150 m in diameter, displaying 20-30 m-high subvertical cliffs. The well-known layer-cake stratigraphy of the sedimentary rocks of the Colorado Plateau permits identification of the largest lithic fragments preserved in the Round Butte diatreme. We define three main groups of pyroclastic facies: undisturbed beds, disturbed beds and non-bedded rocks. Two other minor facies groups were mapped: megablocks (blocks over 2 m in long axis), and small-volume debris avalanche deposits. Pyroclastic megablocks are finer grained and richer in lithic clasts than most diatreme rocks surrounding them. These pyroclastic megablocks are interpreted as subsided portions of the maar ejecta ring. Sedimentary megablocks originate either from above, or from the same level, relative to their current location, i.e. no megablock has a net upward displacement. Small-volume debris avalanche deposits are poorly sorted deposits resulting from gravitational destabilization of the surrounding country rocks into the syn-eruptive crater. Small-volume debris avalanches and individual megablock collapse are the main ways in which the crater grew in size laterally during the eruption. We combine the componentry of the disturbed bedded pyroclastic facies, the non-bedded pyroclastic facies and the pyroclastic megablocks with a series of conceptual models for country rock fragmentation. This exercise further allows us to estimate diatreme wall slopes of 70° below the Bidahochi Formation to approximately the depth of the root zone around 440 m below the pre-eruptive surface. Lithic fragments at the current level of exposure come from elevations up to 190 m above (i.e., up to the pre-eruptive surface) and up to 250 m below (i.e., down to the root zone) their current locations. Pyroclastic units displaying the richest content of lithic clasts with a deep origin are typically the non-bedded facies interpreted to have formed from debris jets during the eruption.
DC202104-0732 2021	Arctic Blue Diamonds	Comments: Patrick Evans on E commerce.	Arctic Blue, https://www.businesswire .com/news/home /20210223005271 /en/Arctic-Blue-to- Launch-E-Commerce- Platform-Offering- Rare-Fluorescing-Diamonds	United States	News item - press release
DM202104-0644 2021	Diamonds.net	GIA now giving details of lab grown treatments.	Diamonds.net, March 16, 1/4p.	United States	News item - synthetics
DM202104-0646 2021	Diamonds.net	New cut grade aims to distinguish best diamonds. ( grade)	Diamonds.net, March 25, 1/4p.	United States	News item - cutting
DM202104-0649 2021	Idex Online	Harry Winston displays the $ 50 mln Pink Legacy diamond.	Idexonline.com, March 4, 1/2p.	United States	News item - Winston
DM202104-0651 2021	Idex Online	Biden re-imposes sanctions on diamond billionaire Gertler.	Idexonline.com, March 11, 1/4p.	United States	News item - legal
DM202104-0654 2021	Idex Online	IGI to assemble world's first diamond coin commodity.	Idexonline.com, March 15, 1/4p.	United States	News item - IGI labs
DM202104-0656 2021	Idex Online	Costco challenges Tiffany over trademark damages.	Idexonline.com, March 26, 1/4p.	United States, Global	News item - Tiffany
DM202104-0729 2021	TXK News	Creative contraptions for discovering diamonds at Crater of Diamonds.	TXK News, March 24, 1p.	United States, Arkansas	News item - Crater of Diamonds
DS202105-0764 2021	Fuston, S., Wu, J.	Raising the Resurrection plate from an unfolded-slab plate tectonic reconstruction of northwestern North America since early Cenozoic time.	Geological Society of America Bulletin, Vol. 133, pp. 1128-1140.	United States	tectonics
	Abstract: The configuration of mid-ocean ridges subducted below North America prior to Oligocene time is unconstrained by seafloor isochrons and has been primarily inferred from upper-plate geology, including near-trench magmatism. However, many tectonic models are permitted from these constraints. We present a fully kinematic, plate tectonic reconstruction of the NW Cordillera since 60 Ma built by structurally unfolding subducted slabs, imaged by mantle tomography, back to Earth’s surface. We map in three-dimensions the attached Alaska and Cascadia slabs, and a detached slab below western Yukon (Canada) at 400-600 km depth that we call the “Yukon Slab.” Our restoration of these lower plates within a global plate model indicates the Alaska slab accounts for Pacific-Kula subduction since ca. 60 Ma below the Aleutian Islands whereas the Cascadia slab accounts for Farallon subduction since at least ca. 75 Ma below southern California, USA. However, intermediate areas show two reconstruction gaps that persist until 40 Ma. We show that these reconstruction gaps correlate spatiotemporally to published NW Cordillera near-trench magmatism, even considering possible terrane translation. We attribute these gaps to thermal erosion related to ridge subduction and model mid-ocean ridges within these reconstruction gap mid-points. Our reconstructions show two coeval ridge-trench intersections that bound an additional “Resurrection”-like plate along the NW Cordillera prior to 40 Ma. In this model, the Yukon slab represents a thermally eroded remnant of the Resurrection plate. Our reconstructions support a “northern option” Farallon ridge geometry and allow up to ?1200 km Chugach terrane translation since Paleocene time, providing a new “tomographic piercing point” for the Baja-British Columbia debate.
DS202105-0784 2021	Presser, J.	Lampoites in Leucite Hills	Linkedin, https://www.linkedin.com/ posts/jaime-l-b-presser -179a0415_and-the-paleo- volcanoes-of-lamproites -in-activity-6781902573 998759936-4fEn	United States, Wyoming	lamproite
DM202105-0851 2021	Rough-polished	Strong demand for natural diamond jewellery in USA… De Beers	roughpolished.com, March 30, 1/4p.	United States	News item - markets
DS202106-0924 2021	Becker, T., Boschi, L.	Multi-scale, radially anisotropic shear wave imaging of the mantle underneath the contiguous United States through joint inversion of USArray and global datasets.	Geophysical Journal International, 34p. Pdf	United States	tomography
	Abstract: EarthScope's USArray seismic component provided unprecedented coverage of the contiguous United States and has therefore spurred significant advances in tomographic imaging and geodynamic modelling. Here, we present a new global, radially anisotropic shear wave velocity tomography model to investigate upper mantle structure and North American Plate dynamics, with a focus on the contiguous United States. The model uses a data-adaptive mesh and traveltimes of both surface waves and body waves to constrain structure in the crust and mantle in order to arrive at a more consistent representation of the subsurface compared to what is provided by existing models. The resulting model is broadly consistent with previous global models at the largest scales, but there are substantial differences under the contiguous United States where we can achieve higher resolution. On these regional scales, the new model contains short wavelength anomalies consistent with regional models derived from USArray data alone. We use the model to explore the geometry of the subducting Farallon Slab, the presence of upper mantle high velocity anomalies, low velocity zones in the central and eastern United States and evaluate models of dynamic topography in the Cordillera. Our models indicate a single, shallowly dipping, discontinuous slab associated with the Farallon Plate, but there are remaining imaging challenges. Inferring dynamic topography from the new model captures both the long-wavelength anomalies common in global models and the short-wavelength anomalies apparent in regional models. Our model thus bridges the gap between high-resolution regional models within the proper uppermost mantle context provided by global models, which is crucial for understanding many of the fundamental questions in continental dynamics.
DM202106-0983 2021	Crater of Diamonds	Visitor finds two carat diamond.	craterofdiamondsStatePark.com, May 27, 1p.	United States, Arkansas	News item - Crater of Diamonds
DM202106-0992 2021	Diamonds.net	USA diamond trade reaches 22 month high.	diamonds.net, May 12, 1/4p.	United States	News item - markets
DS202106-0941 2021	Harlow, G.	The American Museum of Natural History Gem exhibit.	Gems&Jewellery, Vol. 30, 1, pp. 18-20.	United States, New York	Gem exhibit
DM202106-1000 2021	Harlow, G.E.	The American Museum of Natural History's new Gem Hall will cause "jaws to drop".	jackonline.com, May 20, 1p.	United States, New York	News item - Gem Museum
DM202106-1013 2021	Jewellery Focus	Aether Diamonds receives world's first vegan certification. ( carbon from air)	jewelleryfocus.co.uk, May 21, 1/4p.	United States	News item - synthetics
DS202106-0956 2021	Mason, E, Wieser, P.E., Liu, E.J., Edmonds, M., Ilyinskaya, E., Whitty, R.C., Mather, T.A., Elias, T., Nadeau, P.A., Wilkes, T.C., McGonigle, A.J.S., Pering, T.D., Mims, F.M., Kern, C., Schneider, D.J., Oppenheimer, C.	Volatile metal emissions from volcanic gassing and lava-seawater interactions at Kilauea volcano, Hawaii.	Earth & Environment Communications, 10.1038/s43247-021-00145-3 16p. Pdf	United States, Hawaii	magmatism
	Abstract: Volcanoes represent one of the largest natural sources of metals to the Earth’s surface. Emissions of these metals can have important impacts on the biosphere as pollutants or nutrients. Here we use ground- and drone-based direct measurements to compare the gas and particulate chemistry of the magmatic and lava-seawater interaction (laze) plumes from the 2018 eruption of K?lauea, Hawai’i. We find that the magmatic plume contains abundant volatile metals and metalloids whereas the laze plume is further enriched in copper and seawater components, like chlorine, with volatile metals also elevated above seawater concentrations. Speciation modelling of magmatic gas mixtures highlights the importance of the S2? ligand in highly volatile metal/metalloid degassing at the magmatic vent. In contrast, volatile metal enrichments in the laze plume can be explained by affinity for chloride complexation during late-stage degassing of distal lavas, which is potentially facilitated by the HCl gas formed as seawater boils.
DM202106-1034 2021	Rough-polished	DMIA to showcase diamond verification equipment in New York.	roughpolished.com, May 11, 1/4p.	United States	News item - DMIA
DM202106-1062 2021	Rough-polished	DMIA Diamond Verification instruments showcase to kick off on June 1.	roughpolished.com, May 28, 1/4p.	United States, New York	News item - DMIA
DS202107-1092 2021	Brennan, D.T., Li, Z-X., Rankenburg, K., Evans, N., Link, P.K.	Recalibrating Rodinian rifting in the northwestern United States.	Geology Today, Vol. 49, pp. 617-622.	United States, Washington	geochronology
	Abstract: A lack of precise age constraints for Neoproterozoic strata in the northwestern United States (Washington State), including the Buffalo Hump Formation (BHF), has resulted in conflicting interpretations of Rodinia amalgamation and breakup processes. Previous detrital zircon (DZ) studies identified a youngest ca. 1.1 Ga DZ age population in the BHF, interpreted to reflect mostly first-cycle sourcing of unidentified but proximal magmatic rocks intruded during the amalgamation of Rodinia at ca. 1.0 Ga. Alternatively, the ca. 1.1 Ga DZ population has been suggested to represent a distal source with deposition occurring during the early phases of Rodinia rifting, more than 250 m.y. after zircon crystallization. We combined conventional laser-ablation split-stream analyses of U-Pb/Lu-Hf isotopes in zircon with a method of rapid (8 s per spot) U-Pb analysis to evaluate these opposing models. Our study of ?2000 DZ grains from the BHF identified for the first time a minor (?1%) yet significant ca. 760 Ma population, which constrains the maximum depositional age. This new geochronology implies that the BHF records early rift deposition during the breakup of Rodinia and correlates with sedimentary rocks found in other late Tonian basins of southwestern Laurentia.
DM202107-1172 2021	Diamonds.net	GIA seeing record submissions, output backlog.	diamonds.net, June 23, 1/4p.	United States, California	News item - GIA
DS202107-1134 2021	Snyder, D.B., Savard, G., Kjarssgaard, B.A., Vaillancourt, A., Thurston, P.C., Ayer, J.A., Roots, E.	Multidisciplinary modeiling of mantle lithosphere structure within the Superior craton, North America.	Geochemistry, Geophysics, Geosytems, 20p. Pdf	Canada, United States	geophysics - seismics
	Abstract: Structure within the Earth is best studied in three dimensions and using several coincident overlays of diverse information with which one can best see where unusual properties match up. Here we use regional surfaces causing discontinuities in seismic waves a few hundred kilometers deep in the Earth, intersected and thus calibrated by rebuilt rock columns using rare rock samples erupted to the surface in two locations. Electrically conductive regions can be mapped using natural (magnetotelluric) currents. East- and west-dipping seismic discontinuity surfaces match surface structures that developed about 1.8 billion years ago marginal to the Superior crustal block. Surfaces dipping to the southeast and northwest match some boundaries between crustal blocks that are over 2.5 billion years old, but many such crustal boundaries trend more east-west. Conductive rocks appear more commonly above these discontinuity surfaces where gas-rich fluids apparently flowed and that the discontinuities somehow filtered these fluids. The mismatch in orientation and dip between the most ancient deep and exposed structures suggests that plate tectonic processes operating today differed earlier than 2.5 billion years ago.
DS202107-1140 2021	Sun, Y., Teng, F-Z., Pang, K-N., Ying, J-F, Kuehner, S.	Multistage mantle metasomatism deciphered by Mg-Sr-Nd-Pb isotopes in the Leucite Hills lamproite.	Contributions to Mineralogy and Petrology, Vol. 176, 45, 10.1007/s00410-021-01801-9 pdf	United States, Wyoming	deposit - Leucite Hills
	Abstract: Cratonic lamproites bear extreme Sr?Nd?Pb isotopic compositions widely known as enriched mantle I (EMI), yet the origin of the EMI reservoir remains controversial. Here, we explore this issue by examining Mg?Sr?Nd?Pb isotopic compositions of lamproites from Leucite Hills, Wyoming, USA. The ?26Mg values vary from the range of the normal mantle to lower values (? 0.43 to ? 0.18 ‰), correlating with indices of the degree of carbonate metasomatism, an observation that can be best explained through mantle metasomatism by subducted carbonate-bearing sediments. With increasing extent of carbonate metasomatism, these samples display less extreme EMI Sr?Nd?Pb isotopic signatures, arguing for at least two metasomatic events that occurred in their mantle sources. The early metasomatic event associated with subducted continent-derived siliciclastic sediments led to the formation of the EMI Sr?Nd?Pb isotopic signatures while the recent carbonate metasomatism produced the light Mg isotopic signature but diluted the EMI Sr?Nd?Pb isotopic signatures. Our study indicates that a combination of Mg and Sr?Nd?Pb isotopes could be an effective tool in deciphering multiple-stage metasomatic events in mantle sources and places new constraints on the generation of enriched mantle reservoirs.
DM202107-1241 2021	Tribune Publishing	Jones family diamond still total mystery. Punch Jones diamond history.	Bluefielddailytelepgraph.com, June 20, 1p.	United States, West Virginia	News item - history
DM202108-1347 2021	Diamonds.net	A diamond is forever. Is the diamond district?	diamonds.net, https://therealdeal.com /issues_articles/ a-diamond-is-forever -is-the-diamond-district / July 12	United States, New York	News item - markets
DM202108-1355 2021	Idex online	Hike in US duties will have immense impact on India.	idexonline.com, July 2, 1/4p.	India, United States	News item - legal
DM202108-1357 2021	Idex online	It's stronger than diamond, say experts after testing lonsdaleite.	idexonline.com, July 2, 1/4p.	United States, Washington	News item -lonsdaleite
DM202108-1364 2021	Idex online	Why did Tiffany walk away from Costco fight?	idexonline.com, July 24, 1p.	United States	News item - Tiffany
DS202109-1448 2021	Ansari, E., Bidgoli, T.S.	Precambrian crystalline basement properties from pressure history matching and implications for induced seismicity in the US Midcontinent.	Geochemistry, Geophysics, Geosystems, 10.1029/2021GC009660 11p. Pdf	United States, Kansas	geophysics- seismic
	Abstract: Wastewater injection tied to oil and gas development has induced earthquakes across a broad swath of the central US. These earthquakes have almost exclusively occurred in the crystalline rocks, many kilometers below the main disposal zone in this portion of the country, the Arbuckle Group aquifer. However, the hydrologic properties of these deep crystalline rocks are not well known and are needed to accurately model pressure transmission from injection wells to faults in the deep basement and related earthquake hazards. Newly compiled pressure data, from wastewater disposal wells in Kansas, provide an opportunity to constrain these properties. In this study, we construct a detailed, three-dimensional geological model for the Arbuckle and basement, based on data from >400 wells covering south-central Kansas. We use the model to simulate injection and pressures from more than 300 wells. The model indicates that Arbuckle pressures increased by 1.1 MPa in high injection rate areas and overpressures of <0.1 MPa may be the cause of seismicity in the basement. The simulation results also yield the likely range in hydrologic properties for the crystalline basement and suggests large-scale properties of the basement are enhanced by hidden networks of faults and fractures.
DS202109-1478 2021	Li, Y., Levin, V., Nikulin, A., Chen, X.	Systematic mapping of upper mantle seismic discontinuities beneath northeastern North America.	Geochemistry, Geophysics, Geosystems, 10.1029/2021GC009710 20p. Pdf	United States, Canada	geophysics- seismic
	Abstract: We probe the properties of upper mantle rocks beneath northeastern North America using the observations of seismic waves from distant earthquakes. We examine signals of converted P-S waves that originate from locations of rapid vertical or directional changes in seismic velocities. These abrupt velocity boundaries are thought to originate from rock deformation, variations in composition, temperature, or melt content. The sharp transitions detectable by this method are compositionally more plausible within the cold tectonic plate than within the hot convecting asthenosphere. Previous studies in this region that analyzed the same type of seismic data report boundaries with sharp downward reduction in seismic velocities between the depths of 60 and 100 km. Their widespread distribution and local consistency with seismic velocity models was used as evidence of them marking the transition between the cold tectonic plate and the hot convecting asthenosphere. Here we expand our search to other types of boundaries and find numerous examples at much greater depths (down to ?185 km). These deeper boundaries primarily reflect changes in directional variation of seismic velocities (anisotropy). The distribution of our deep boundaries broadly agrees with lithospheric thickness estimates in global upper mantle models that consider seismic, gravity, and heat flow data.
DS202110-1600 2021	Barrie, E., Eaton-Magana, S.	CVD Laboratory-grown diamond with counterfeit GIA inscription.	Gems & Gemology, Vol. 57, 2, summer pp. 150-152. gia.edu/gems-gemology	United States, California	synthetic
	Abstract: In recent months, GIA has seen a number of laboratory-grown diamonds submitted for update or verification services with counterfeit inscriptions referencing GIA natural diamond reports ("GIA laboratory prevents attempted fraud"). One recent example is a 3.07 ct round brilliant submitted to the Antwerp lab for update service (figure 1). It bore an inscription matching a GIA report for a natural diamond that had been submitted in 2018. Microscopic examination quickly revealed, however, that the inscription was in fact fraudulent. Further analysis indicated a laboratory-grown origin.
DS202110-1602 2021	Boneh, Y., Chin, E.J., Hirth, G.	Microstructural analysis of a mylonitic mantle xenolith sheared laboratory-like strain rates from the edge of the Wyoming craton.	Minerals MDPI, Vol. 11, 995, 18p. Pdf	United States, Montana, Wyoming, Utah, Canada, Alberta, Saskatchewan	craton
	Abstract: Combined observations from natural and experimental deformation microstructures are often used to constrain the rheological properties of the upper mantle. However, relating natural and experimental deformation processes typically requires orders of magnitude extrapolation in strain rate due to vastly different time scales between nature and the lab. We examined a sheared peridotite xenolith that was deformed under strain rates comparable to laboratory shearing time scales. Microstructure analysis using an optical microscope and electron backscatter diffraction (EBSD) was done to characterize the bulk crystallographic preferred orientation (CPO), intragrain misorientations, subgrain boundaries, and spatial distribution of grains. We found that the microstructure varied between monophase (olivine) and multiphase (i.e., olivine, pyroxene, and garnet) bands. Olivine grains in the monophase bands had stronger CPO, larger grain size, and higher internal misorientations compared with olivine grains in the multiphase bands. The bulk olivine CPO suggests a dominant (010)[100] and secondary activated (001)[100] that are consistent with the experimentally observed transition of the A to E-types. The bulk CPO and intragrain misorientations of olivine and orthopyroxene suggest that a coarser-grained initial fabric was deformed by dislocation creep coeval with the reduction of grain size due to dynamic recrystallization. Comparing the deformation mechanisms inferred from the microstructure with experimental flow laws indicates that the reduction of grain size in orthopyroxene promotes activation of diffusion creep and suggests a high activation volume for wet orthopyroxene dislocation creep.
DS202110-1603 2021	Borenstein, G., Oneal, S.	Rare mixed type IaB-IIb diamond with a long-lasting phosphorescence. Stuller's Gem Lab.	Gems & Gemology, Vol. 57, 2, summer pp. 178-179. gia.edu/gems-gemology	United States, Louisianna	luminescence
DM202110-1672 2021	Diamonds.net	America driving industry confidence. Krawitz	diamonds.net, Sept. 14, 1/4p.	United States	News item - markets
DS202110-1619 2020	Kane, R.E.	America's Royal Gem: Montana and Yogo sapphires.	www.gemstone.org/ incolormagazine.com, Vol. 45, p. 30-39. pdf	United States, Montana	sapphires
DS202110-1633 2021	Persaud, S., Galati, A., Johnson, P.	Colorful inclusions in diamond.	Gems & Gemology, Vol. 57, 2, pp. 158-159. gia.edu/gems-gemology	United States, California	diamond inclusions
DM202110-1710 2021	Rough-polished	Lucara unveils 1,175 ct rough diamond in New York - report.	rough-polished.com, Sept. 21, 1/4p.	Africa, Botswana, United States, New York	News item - Lucara
DS202110-1643 2007	Whitmeyer, S.J., Karlstrom, K.E.	Tectonic model for the Proterozoic growth of North America. **** NOTE DATE	Geosphere via Researchgate, Vol. 3, 4, pp. 220-259.	Canada, United States	craton
	Abstract: This paper presents a plate-scale model for the Precambrian growth and evolution of the North American continent. The core of the North American continent (Canadian shield) came together in the Paleoproterozoic (2.0-1.8 Ga) by plate collisions of Archean continents (Slave with Rae-Hearne, then Rae-Hearne with Superior) as well as smaller Archean continental fragments (Wyoming, Medicine Hat, Sask, Marshfield, Nain cratons). The resulting Trans-Hudson orogen was a collisional belt similar in scale to the modern Himalayas. It contains mainly reworked Archean crust, but remnants of juvenile volcanic belts are preserved between Archean masses. The thick, buoyant, and compositionally depleted mantle lithosphere that now underlies North America, although dominantly of Archean age, took its present shape by processes of collisional orogenesis and likely has a scale of mantle heterogeneity similar to that exhibited in the overlying crust. In marked contrast, lithosphere of southern North America (much of the conti nental United States) was built by progressive addition of a series of dominantly juvenile vol canic arcs and oceanic terranes accreted along a long-lived southern (present coordinates) plate margin. Early juvenile additions (Pembine-Wausau, Elves Chasmarcs) formed at the same time (1.84-1.82 Ga) the core was assembling. Following final assembly of the Archean and Paleoproterozoic core of North America by 1.8 Ga, major accretionary provinces (defined mainly by isotopic model ages) were added by arc-continent accretion, analogous to present-day convergence between Australia and Indonesia. Also similar to Indonesia, some accreted terranes contain older continental crustal material [Archean(?) Mojavia], but the extent and geometry of older crust are not well known. Accretionary provinces are composed of numerous 10 to 100 km scale terranes or blocks, separated by shear zones, some of which had compound histories as terrane sutures and later crustal-assembly structures. Major northeast-trending provinces are the Yavapai province (1.80-1.70 Ga), welded to North America during the 1.71-1.68 Ga Yavapai orogeny; the Mazatzal province (1.70-1.65 Ga), added during the 1.65-1.60 Ga Mazatzal orogeny; the Granite-Rhyolite province (1.50-1.30 Ga), added during the 1.45-1.30 Ga tectonic event associated with A-type intracratonic magmatism; and the Llano-Grenville province (1.30-1.00 Ga), added during the 1.30-0.95 Ga broader Grenville orogeny. During each episode of addition of juvenile lithosphere, the transformation of juvenile crust into stable continental lithosphere was facilitated by voluminous granitoid plutonism that stitched new and existing orogenic boundaries. Slab roll back created transient extensional basins (1.70 and 1.65 Ga) in which Paleoproterozoic quartzite-rhyolite successions were deposited, then thrust imbricated as basins were inverted. The lithospheric collage that formed from dominantly juvenile terrane accretion and stabilization (1.8-1.0 Ga) makes up about half of the present-day North American continent. Throughout (and as a result of) this long-lived convergent cycle, mantle lithosphere below the accretionary provinces was more hydrous, fertile, and relatively weak compared to mantle lithosphere under the Archean core.
DM202111-1802 2021	Boyd, W.	Big players promote responsible sources of coloured stones. Comments by Boyd	https://www.linkedin.com/ posts/warrenboyd_ big-players-promote-responsible- sourcing-activity- 6858032350501199872-I6MX, Oct. 11	Global, United States, Montana	News item - emeralds
DS202111-1763 2021	Chin, E.J., Chilson-Parks, B., Boneh, Y., Hirth, G., Saal, A.E., Hearn, B.C., Hauri, E.H.	The peridotite deformation cycle in cratons and the deep impact of subduction.	Tectonophysics, Vol. 817, 229029, 22p. Pdf	United States, Wyoming	deposit - Homestead, Williams
	Abstract: Xenoliths play a crucial role in interpretation of mantle deformation and geochemistry. The classic work of Mercier and Nicolas (1975) introduced the concept of the peridotite deformation cycle, which connected observed microstructures to a physical sequence of deformation. We revisit Mercier and Nicolas' original concept, bringing in new constraints using large area EBSD maps and associated microstructural datasets, analysis of water contents in nominally anhydrous minerals, and trace element chemistry of pyroxenes and garnets. We apply these techniques to a well-characterized suite of peridotite xenoliths from the Eocene-age Homestead and Williams kimberlites in the northwestern Wyoming Craton. Pyroxene water content and trace element mineral chemistries reveal ubiquitous hydrous metasomatism beneath the craton, most likely linked to the Cenozoic Laramide Orogeny. Homestead xenoliths primarily exhibit coarse protogranular and equigranular textures, B-type olivine fabrics, and generally elevated mineral water contents compared to Williams. Xenoliths from Williams are strongly deformed, with porphyroclastic and transitional textures containing annealed olivine tablets, mostly A-type olivine fabrics, and generally lower mineral water contents. As a whole, mantle from Homestead to Williams reflects a cratonic scale deformation cycle that likely initiated in Laramide times and lasted until the end of orogeny in the Eocene. At Williams, evidence for a rapid deformation “sub-cycle” within the main deformation cycle is preserved in the tablet-bearing xenoliths, corresponding to the enigmatic “transitional” texture of Mercier and Nicolas (1975). Our results suggest that this texture reflects interruption of the main deformation cycle by processes possibly related to a rapidly forming lithospheric instability and generation of the kimberlite magma - offering a new interpretation of this ambiguous peridotite texture. Collectively, our results incorporate typically disparate geochemical and textural datasets on xenoliths to shed new insights into how metasomatism, volatiles, and deformation are connected in the deep cratonic lithosphere.
DM202111-1817 2021	Diamonds.net	US diamond imports continue to rise.	diamonds.net, Oct. 3, 1/4p.	United States	News item - markets
DM202111-1838 2021	Kake	Woman finds 4.38 carat yellow diamond at Crater of Diamonds.	Ark.www.kake.com, Oct. 1, 1/2p.	United States, Arkansas	News item - Crater of Diamonds
DM202112-1968 2021	Bates, R.	In first public quarter, Brilliant Earth says sales rose 33%.	jckonline.com, Nov. 17, 1/4p.	United States	News item - Brilliant Earth
DM202112-2009 2021	Idex Online	Out of this world: jeweller launches 'space diamonds'.	idexonline.com, Oct. 29, 1/4p.	United States	News item - Dianne Ray Jewelry
DM202112-2010 2021	Idex Online	Two thirds of US independent jewelers now sell lab growns.	idexonline.com, Oct. 29, 1/4p.	United States, Canada	News item - synthetics
DS202112-1931 2021	Kaempfer, K.M., Guentthner, W.R., Pearson, D.R.	Proterozoic to Phanerozoic tectonism in southwestern Montana basement and ranges constrained by low temperature thermochronometric data.	Tectonics, Vol. 40, 11 22021TC006744	United States, Montana	geothermometry
	Abstract: Crystalline basement rocks of southwestern Montana have been subjected to multiple tectonothermal events since ?3.3 Ga: the Paleoproterozoic Big Sky/Great Falls orogeny, Mesoproterozoic extension associated with Belt-Purcell basin formation, Neoproterozoic extension related to Rodinia rifting, and the late Phanerozoic Sevier-Laramide orogeny. We investigated the long-term (>1 Ga), low-temperature (erosion/burial within 10 km of the surface) thermal histories of these tectonic events with zircon and apatite (U-Th)/He thermochronology. Data were collected across nine sample localities (n = 55 zircon and n = 26 apatite aliquots) in the northern and southern Madison ranges, the Blacktail-Snowcrest arch, and the Tobacco Root uplift. Our zircon (U-Th)/He data show negative trends between single aliquot date and effective uranium (a radiation damage proxy), which we interpreted with a thermal history model that considers the damage-He diffusivity relationship in zircon. Our model results for these basement ranges show substantial cooling from temperatures above 400°C to near surface conditions between 800 and 510 Ma. Subsequent Phanerozoic exhumation culminated by ?75 Ma. Late Phanerozoic cooling is coincident with along-strike Sevier belt thin-skinned thrusting in southeastern Idaho, and older than exhumation in basement-involved uplifts of the Wyoming Laramide province. Our long-term, low-temperature thermal record for these southwestern Montana basement ranges shows that: (a) these basement blocks have experienced multiple episodes of upper crustal exhumation and burial since Archean time, possibly influencing Phanerozoic thrust architecture and (b) the late Phanerozoic thick-skinned thrusting recorded by these rocks is among the earliest thermochronologic records of Laramide basement-involved shortening and was concomitant with Sevier belt thin-skinned thrusting.
DS202112-1955 2021	Watts, K.E., Haxel, G.B., Miller, D.M.	Temporal and petrogenetic links between Mesoproterozoic alkaline and carbonatite magmas at Mountain Pass, California.	Economic Geology, Vol. 117, 1, pp. 23p.	United States, California	deposit - Mountain Pass
	Abstract: Mountain Pass is the site of the most economically important rare earth element (REE) deposit in the United States. Mesoproterozoic alkaline intrusions are spatiotemporally associated with a composite carbonatite stock that hosts REE ore. Understanding the genesis of the alkaline and carbonatite magmas is an essential scientific goal for a society in which critical minerals are in high demand and will continue to be so for the foreseeable future. We present an ion microprobe study of zircon crystals in shonkinite and syenite intrusions to establish geochronological and geochemical constraints on the igneous underpinnings of the Mountain Pass REE deposit. Silicate whole-rock compositions occupy a broad spectrum (50-72 wt % SiO2), are ultrapotassic (6-9 wt % K2O; K2O/Na2O = 2-9), and have highly elevated concentrations of REEs (La 500-1,100× chondritic). Zircon concordia 206Pb/238U-207Pb/235U ages determined for shonkinite and syenite units are 1409 ± 8, 1409 ± 12, 1410 ± 8, and 1415 ± 6 Ma (2?). Most shonkinite dikes are dominated by inherited Paleoproterozoic xenocrysts, but there are sparse primary zircons with 207Pb/206Pb ages of 1390-1380 ± 15 Ma for the youngest grains. Our new zircon U-Pb ages for shonkinite and syenite units overlap published monazite Th-Pb ages for the carbonatite orebody and a smaller carbonatite dike. Inherited zircons in shonkinite and syenite units are ubiquitous and have a multimodal distribution of 207Pb/206Pb ages that cluster in the range of 1785-1600 ± 10-30 Ma. Primary zircons have generally lower Hf (<11,000 ppm) and higher Eu/Eu* (>0.6), Th (>300 ppm), Th/U (>1), and Ti-in-zircon temperatures (>800°C) than inherited zircons. Oxygen isotope data reveals a large range in ?18O values for primary zircons, from mantle (5-5.5‰) to crustal and supracrustal (7-9‰). A couple of low-?18O outliers (2‰) point to a component of shallow crust altered by meteoric water. The ?18O range of inherited zircons (5-10‰) overlaps that of the primary zircons. Our study supports a model in which alkaline and carbonatite magmatism occurred over tens of millions of years, repeatedly tapping a metasomatized mantle source, which endowed magmas with elevated REEs and other diagnostic components (e.g., F, Ba). Though this metasomatized mantle region existed for the duration of Mountain Pass magmatism, it probably did not predate magmatism by substantial geologic time (>100 m.y.), based on the similarity of 1500 Ma zircons with the dominantly 1800-1600 Ma inherited zircons, as opposed to the 1450-1350 Ma primary zircons. Mountain Pass magmas had diverse crustal inputs from assimilation of Paleoproterozoic and Mesoproterozoic igneous, metaigneous, and metasedimentary rocks. Crustal assimilation is only apparent from high spatial resolution zircon analyses and underscores the need for mineral-scale approaches in understanding the genesis of the Mountain Pass system.
DM202112-2085 2021	Zimnisky, P.	Diamond prices: charging towards an all-time high. ( decreased production, paucity of new mines coming on stream, low exploration spending).	Miningreview.com, Nov. 14, 1p.	United States, India	News item - markets
DM202201-0069 2021	Diamonds.net	70 ct yellow sells big at Christie's.	diamonds.net, Dec. 9, 1/4p.	United States, New York	News item - Christie
DM202201-0071 2021	Diamonds.net	Out & About watching De Beers grow diamonds in Oregon.	diamonds.net, Dec. 16, 1/4p.	United States, Oregon	News item - synthetics
DM202201-0077 2021	Greene, C., Reiderer, R.	The amateur miners who dig through more than dirt. Documentary on Crater of Diamonds.	The New Yorker, Dec. 15, 1p. Overview	United States, Arkansas	News item - Crater of Diamonds
DM202201-0156 2021	The Israeli Diamond Industry	Christie's magnificent jewels auction rakes in $ 54 mln ( coloured diamonds).	israelidiamond.co.il, Dec. 16, 1/4p.	United States, New York	News item - Christie
DM202202-0252 2022	Diamonds.net	IGI grades recent blue lab-grown diamond 150.42 ct synthetic	diamonds.net, Jan. 23, 1/4p.	United States	News item - synthetics
DM202202-0256 2021	Gem & Jewellery	Yogo sapphire operation.	Gem & Jewellery, Vol. 30, 4, p. 18-19.	United States, Montana	News item - Yogo
DS202202-0222 2022	Wang, X., Zhao, D., Xia, S., Li, J.	Mantle structure and flow beneath the central western US: constraints from anisotropic tomography.	Tectonophysics, Vol. 822, 229180, 11p. Pdf	United States	tomography
	Abstract: To investigate lateral and depth variations of seismic anisotropy beneath the central-western United States, we determined a detailed 3-D model of P-wave anisotropic tomography by inverting a large number of arrival-time data of local and teleseismic events. Our results reveal significant azimuthal anisotropies in the crust and lithosphere, which are associated with ancient orogenic collisional and magmatic activities. As depth increases, the fast-velocity direction (FVD) pattern becomes gradually trended and small features fade away. There is a boundary in the FVD distribution, which separates the tectonically active region in the west from the stable cratonic region in the east. Frozen-in anisotropy with a NW-SE FVD is preserved in the thick Wyoming cratonic lithosphere that exhibits as a high-velocity (high-V) anomaly to a depth of ~250 km. In the asthenosphere beneath the western thin lithosphere, FVDs are generally parallel with the absolute motion direction of the North American plate due to shearing between the plate and the asthenosphere. In the deeper areas, the subducted and fragmented slab exhibiting as high-V anomalies leads to slab-related mantle flows. These results indicate that seismic anisotropies exist in both the lithosphere and asthenosphere with different geodynamic mechanisms and it is feasible to link the P-wave azimuthal anisotropy to lithospheric deformations, fossil anisotropy in the lithosphere, and flows in the asthenosphere.
DM202203-0380 2022	Bates, R.	Has LVMH turned Tiffany around - or upside down?	jckonline.com, Feb. 17, 3p.	United States	News item - Tiffany
DM202203-0394 2022	Diamonds.net	US retailers saw twice as many store openings as closings in 2021.	Diamonds.net, Jan. 31, 1/4p.	United States	News item - markets
DM202203-0452 2022	Rough-polished	GIA examined the largest known laboratory-grown diamond. 16.41 ct from Shanghai Zhengshi Technology.	rough-polished.com, Feb. 2, 1/4p.	United States	News item - GIA
DM202204-0553 2022	Bates, R.	United States bans Russian diamonds.	jckonline.com, Mar. 11, 1p.	United States, Russia	News item - markets
DM202204-0565 2022	Diamonds.net	US places sanctions on Russian miner Alrosa.	diamonds.net, Feb. 28, 1p.	Russia, United States	News item - Alrosa
DM202204-0571 2022	Diamonds.net	Alrosa US chief leaves role at Diamonds do good.	diamonds.net, Mar. 8, 1/4p.	United States, Russia	News item - DDG
DM202204-0583 2022	Idex online	Diamond Foundry sues US government over polishing tariffs on China.	idexonline.com, Mar. 24, 1/4p.	China, United States	News item - Diamond Foundry
DM202204-0588 2022	Jeffay, J.	"Your big diamond might be fake" - provocative documentary launches in US.	idexonline.com, Mar. 13, 1/3p.	United States	News item - synthetics
DM202204-0635 2022	Rough-polished	Analysts react to U.S. Sanctions against Alrosa. Zimnisky and Golan	Rough-polished.com, Mar. 21, 2p.	United States, Russia	News item - Zimnisky
DS202204-0543 2022	Wang, W., Vidale, J.E.	An initial map of fine-scale heterogeneity in the Earth's inner core. *** not specific to diamonds	Nature Geoscience, Vol. 15, pp. 240-244.	United States, Asia, South America	geophysics - seismics
	Abstract: The seismological properties of Earth’s inner core are key to understanding its composition, dynamics and growth history. Within the inner core, fine-scale heterogeneity has previously been identified from backscattering of high-frequency compressional waves. Here we use historical earthquake and explosion data from the Large Aperture Seismic Array, USA, between 1969 and 1975 to build a 3D map of heterogeneity from the inner-core boundary to 500?km depth and determine the geographical distribution of the scatterers across the 40% of the inner core that is visible to the array. Our model has two regions of strong scattering, one beneath eastern Asia and the other beneath South America, both located where past local surveys have identified scattering. We suggest that these loci of strong, fine-scale heterogeneities may be related to random alignments of small, inner-core crystals due to fast freezing. These areas, which have been identified as having high attenuation and lie beneath colder areas of the core-mantle boundary, potentially provide constraints on the dynamics of the inner core and the motions in the outer core, with downwelling in the mantle and outer core possibly associated with strong scattering and inner-core heterogeneity.
DM202205-0743 2022	Bates, R.	U.S. Representatives want Russian diamond "loophole" closed.	Jckonline.com, Apr. 6, 1p.	United States, Russia	News item - legal
DM202205-0744 2022	Bates, R.	Tiffany calls Cartier "trade secrets" lawsuit Bizarre.	Jckonline.com, Apr. 16, 1/2p.	United States	News item - Tiffany
DM202205-0746 2022	Bloombergquint	US treasury increased sanctions against Alrosa whereby their clients and others must stop all dealings with the company.	bloombergquint.com, Apri. 8, 1/4p.	United States, Russia	News item - Alrosa
DM202205-0771 2022	Diamonds.net	GIA offers consumers diamond origin information.	diamonds.net, Apr. 19, 1/4p.	United States	News item - GIA
DS202205-0683 2022	Gems & Jewellery	The rebirth of Yogo sapphire production at historic mine.	Gems&Jewellery, Vol. 31, 1, pp. 19-21.	United States, Montana	deposit - Yogo
DS202205-0688 2022	Hutchinson, M., Slezak, P., Wendtlandt, R., Hitzman, M.	Rare earth element enrichment in the weathering profile of the Bull Hill carbonatite at Bear Lodge, Wyoming, USA.	Economic Geology, Vol. 117, pp. 813-831.	United States, Wyoming	deposit - Bull Hill
	Abstract: Bull Hill is a carbonatite diatreme within the Paleogene Bear Lodge Carbonatite Complex in Wyoming, USA. Rare earth element (REE)-bearing carbonate, fluorocarbonate, phosphate, and oxide minerals occur within near-vertical carbonatite dikes on the western margin of Bull Hill. Changes in mineralogy and REE concentrations with depth are ascribed mainly to late-stage magmatic-hydrothermal and supergene alteration. Approximately 35 m of drill core from Bull Hill was analyzed and encompasses least altered, weakly weathered, and moderately weathered carbonatite. The least altered carbonatite contains magmatic burbankite, typically as inclusions within Mn-rich calcite (stage I). Secondary REE-bearing minerals, which pseudomorphically replaced unidentified hexagonal phenocrysts, include ancylite, bastnäsite with synchysite/parisite, and an unidentified Sr-Ca-REE-phosphate (stage II). These replacive minerals generated small amounts of incipient porosity (~7-8%) and are largely stable in the lower portion of the weathering profile. Progressive weathering (stages III and IV) of the carbonatite involved the oxidation of pyrite to iron oxides and iron hydroxides, dissolution of calcite and strontianite, and the replacement of Mn-rich calcite by manganese oxides. These mineralogical changes resulted in an ~40% porosity gain in the core studied here. The volumetric concentration of weathering resistant REE-bearing minerals resulted in REE enrichment from an average of 5.4 wt % in the least weathered carbonatite to an average of 12.6 wt % in moderately weathered carbonatite, and to an overall increase in REE ore tenor of two to three times compared to the least altered carbonatite. Isocon plots confirm the increased concentration of REEs in the weathered carbonatite and demonstrate that REEs, along with TiO2, Ta, Nb, Zr, and Hf, were conserved in the lower weathered zone.
DM202205-0783 2022	Idex Online	8.8 ct pink diamond sells for $ 6.8 mln. Fuchsia Rose	Idexonline.com, Apr. 13, 1/4p.	United States	News item - Christie's
DM202205-0793 2022	JCK	5 Things I learned at Lightbox tour.	Jckonline.com, Apr. 2, 3p.	United States	News item - Lightbox
DM202205-0795 2022	Jeffay, J.	Israel "will suffer from US and EU diamond sanctions on Russia".	Idexonline.com, Apr. 2, 1/2p.	Europe, Israel, United States, Russia	News item - legal