Kaiser Research Online - Education - SDLRC - Region: California - All

SDLRC - Region: California - All

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

California - Technical, Media and Corporate
Posted/ Published	Author	Title	Source	Region	Keywords
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
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
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
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
DS1860-0040 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
DS1860-0026 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
DS1860-0006 1861	California Magazine	The Great Knight's Ferry Diamond	California Magazine., Vol. 5, P. 208.	United States, California, West Coast	Diamonds notable
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
DS1860-0205 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
DS1860-0134 1871	Dingler	Das Vorkommen von Diamanten in Californien	Dingler's., No. 199, P. 76.	United States, California, Oregon	Diamond Occurrence
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
DS1860-0614 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
DS1860-0106 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
DS1860-0594 1888	Irelan, W.JR.	Amador County Diamonds	California Min. Bureau Report., No. 8, PP. 104-106.; P. 116.	United States, California	Diamond Occurrence
DS1860-0289 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
DS1860-0184 1872	King, C.	Copy of Official Letter Addressed November 11th to the Board	San Francisco Archives, 12P.	United States, California	History
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
DS1860-0454 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
DS1860-0558 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
DS1860-0834 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
DS1860-0921 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
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
DM1860-1129 1872	London Mining Journal	Diamonds in California, 1872	London Mining Journal, Vol. 42, SEPT. 7TH. P. 858.	United States, California, West Coast	Diamond Occuurence
DM1860-1136 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
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
DS1860-0041 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
DS1860-0100 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
DS1860-0133 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
DS1860-0172 1872	Mining and Scientific Press	The Diamond Swindle	Mining and Scientific Press, Vol. 25, P. 344.	United States, California, West Coast	Legal
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
DS1860-0878 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
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
DS1860-0855 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
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
DS1860-0533 1887	San Francisco Bulletin	A California Diamond	San Francisco Bulletin., AUGUST 11TH.	United States, California, West Coast, Amador	Diamond Occurrence
DS1860-0828 1894	San Francisco Bulletin	Diamond Found in California	San Francisco Bulletin, Dec. 12TH.	United States, California, West Coast, El Dorado	Diamond Occurrence
DS1860-0053 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
DS1860-0819 1893	Storms, W.H.	The Occurrence of Diamonds	Mining and Scientific Press, Vol. 66, Feb. 25TH. PP. 117-118.	United States, California	Diamond Occurrence
DS1860-0009 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
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
DS1860-0019 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
DS1860-0482 1885	Yale, C.G.	California Diamonds, 1885	West American Scientist., Vol. 2, P. 60.	United States, California	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
DS1900-0106 1902	Bailey, G.E.	California as a Gem State	Overland Month, N.S. Vol. 40, PP. 468-470.	United States, California, West Coast	Gemstone
DS1900-0302 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
DS1900-0509 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
DS1900-0629 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
DS1900-0412 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
DS1900-0060 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
DS1900-0255 1904	Holway, R.S.	Eclogites in California	Journal of Geology, Vol. 12, PP. 244-258.	United States, California, West Coast	Eclogites
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
DS1900-0027 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
DS1900-0121 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
DS1900-0335 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
DS1900-0627 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
DS1900-0301 1905	Manufacturer Jeweller	Diamonds Near Placerville	Manufacturer Jeweller, Vol. 37, Oct. 12TH. P. 358.	United States, California, West Coast	Diamond Occurrence, Diamonds Notable
DS1900-0628 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
DS1900-0736 1909	Manufacturer Jeweller	Diamonds from California	Manufacturer Jeweller, Vol. 44	United States, California, West Coast, Montana	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
DS1900-0233 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
DM1900-0822 1902	New York Sun	Diamonds in California, 1902	New York Sun., AUGUST 8TH.	United States, California	Diamond Occurrence
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
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
DS1900-0008 1900	The San Francisco Chronicle	Finds Diamonds in Desert Lands	The San Francisco Chronicle, AUG. 23RD.	United States, California, West Coast	Diamond Occurrence
DS1900-0232 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
DS1900-0224 1903	West, G.B.	Diamonds and Precious Stones in California	San Francisco Chronicle.,	United States, California, West Coast	Gemstones
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
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
DS1910-0151 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
DS1910-0256 1912	Anon.	Diamonds in California, 1912	Engineering and Mining Journal, Vol. 94, SEPT. 7TH. P. 469.	United States, California, West Coast	Blank
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
DS1910-0403 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
DS1910-0491 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
DS1910-0520 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
DS1910-0526 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
DS1910-0501 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
DS1910-0050 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
DS1910-0351 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
DS1910-0556 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
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
DS1910-0312 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
DS1910-0386 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
DS1910-0539 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
DS1910-0541 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
DS1920-0144 1923	Anon.	Diamond Deposits Believed Likely	Perris Progress, MARCH 15TH.	United States, California, West Coast	Blank
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
DS1920-0152 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
DS1920-0106 1922	Hoffman, A.	California Diamonds, 1922	Manufacturer Jeweller., Vol. 70, MARCH 16TH. P. 522.	United States, California, West Coast	Blank
DS1920-0109 1922	Logan, C.A.	Butte County	California Mining Bureau Report., No. 24, P. 177.	United States, California, West Coast	Blank
DS1920-0084 1921	Schaller, W.T.	Gems and Precious Stones. #2	Mineral Resources For The Year 1918, PT. 2, PP. 7-14.	California, West Coast	Diamonds
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
DS1930-0094 1932	Anon.	Diamond Found Near Oroville	San Francisco Chronicle., Feb. 16TH.	United States, California, West Coast	Blank
DS1930-0212 1936	Anon.	Diamonds of California; 1935	Mineral Resources of The United States For 1935, P. 1209.	United States, California, West Coast	Blank
DS1930-0132 1933	Ball, S.H.	Diamond Deposits of Magmatic Origin	In: ore deposits of the western states, pp. 524-6.	California	Alluvial Diamonds
DS1930-0271 1938	Bradley, W.W.	California's Commercial Minerals	Mining Congress Journal, Vol. 24, No. 9, P. 19.	United States, California	Diamond Occurrences
DS1930-0280 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
DS1930-0199 1935	Rickard, T.A.	The Great Diamond Hoax (1935)	Engineering and Mining Journal, Vol. MAY 30TH.	United States, California, West Coast	Blank
DS1930-0283 1938	Spereisen, F.J.	Gem Minerals of California	California Division of Mines Report, No. 34, PP. 34-78.	California, West Coast	Diamonds
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
DS1940-0185 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
DS1940-0102 1945	Switzer, G.	Eclogite from the California Glaucophane Schists	American Journal of SCIENCE., Vol. 243, PP. 1-8.	California	Eclogite, Kimberlite
DS1950-0003 1950	Anon.	California's Diamond Output	Journal of Gemology, P. 316, OCTOBER.	California	Kimberlite, West Coast
DS1950-0008 1950	Anon.	California Diamond Output	Lapidary Journal, Vol. 5, P. 316.	United States, California, West Coast	Blank
DS1950-0087 1952	Anon.	Diamonds of California; June, 1952	Journal of Gemology, P. 151, JUNE.	California	Kimberlite, West Coast
DS1950-0093 1952	Anon.	Diamonds in California, 1952	Lapidary Journal, Vol. 7, JUNE P. 151.	United States, California, West Coast	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
DS1950-0104 1952	Henry, D.J.	Gem Trail Journal	California: Long Beach, Second Edition., 93P.	United States, California, West Coast	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
DS1950-0409 1958	Lenoff, J.	Oroville's Mystery Diamonds	The Feather River Territorial, Summer 1958, PP. 4-9.	United States, California, West Coast, Montana	Blank
DS1950-0362 1957	Wright, L.A.	Gemstones; 1957	California Division of Mines And Geol. Bulletin., No. 176, PP. 205-214.	California, West Coast	Diamonds
DS1960-0208 1962	Anon.	Diamonds in California; December, 1962	Journal of Gemology, P. 856, DECEMBER.	California	Kimberlite, West Coast
DS1960-0212 1962	Anon.	Diamonds in California, 1962	Lapidary Journal, Vol. 16, DECEMBER P. 856.	United States, California, West Coast	Blank
DS1960-1069 1969	Bailey, E.H., Blake, M.C.JR.	Tectonic Development of Western California in the Late Mezozoic ; Article 2, Metamorphism and its Relationship with Regional Tectonics.	Geotectonics, No. 4, PP. 225-230.	California	Kimberlite
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
DS1960-0946 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
DS1960-0542 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
DS1960-0671 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
DS1960-0836 1967	Halverson, B.	Diamonds for Free - Maybe	Enterprise Records, Chico, California., SEPTEMBER 2.	United States, California, West Coast	Kimberlite
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
DS1960-0885 1967	Traywick, B.	California's Diamond Mine	California Desert., Vol. 30, No. 6, JUNE, PP. 16-18.	California, West Coast	Diamonds
DS1960-1230 1969	Wise, W.S.	Origin of Basaltic Magmas in the Mojave Desert Area, California.	Contributions to Mineralogy and Petrology, Vol. 23, PP. 53-64.	California	Kimberlite
DS1970-0458 1972	Abbott, A.L.	Gem Trails of California	Anaheim: Privately Publishing, 84P.	California	Kimberlite
DS1970-0880 1974	Blake, M.C., Jones, D.L.	Origin of Franciscan Melanges in Northern California	Soc. Econ. Paleontologists And Mineralogists Spec. Publishing, No. 19, PP. 345-357.	California	Kimberlite
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
DS1970-0506 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
DS1970-0075 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
DS1970-0509 1972	Faul, H.	Century Old Diamond Hoax Reexamined	Geotimes, Vol. 17, PP. 23-25.	United States, California, West Coast	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
DS1970-0534 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
DS1970-0769 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
DS1970-0399 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
DS1970-0832 1973	Stull, R.J., Mcmillan, K.	Origin of Lherzolite Inclusions in the Malapai Hill Basalt, joshua Tree National Monument, California.	Geological Society of America (GSA) Bulletin., Vol. 84, PP. 2343-2350.	California	Lherzolite, Kimberlite
DS1975-0940 1979	Basu, A.R.	Geochemistry of Ultramafic Xenoliths from the San Quintin Baja california. In: the Mantle Sample: Inclusions in Kimberlites and Other Volcanics.	International Kimberlite Conference SECOND Proceedings, Vol. 2, PP. 39L-399.	California	Kimberlite
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
DS1975-0411 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
DS1975-0433 1976	Westman, B.J.	If a mineral has not been vigourously sought, it is not logical to argue that the mineral is rare.... diamond.	Calif. Min. Journal, Vol. 46, No. Oct., Jan., Feb. Mar, 12p.	California	Diamond Occurrences
DS1980-0053 1980	Basu, A.R.	Jointed Blocks of Peridotite Mantle Xenoliths in Basalts And Mantle Dynamics.	Nature., Vol. 284, No. 5757, PP. 612-613, APRIL 17.	California	Kimberlite
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
DS1980-0181 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
DS1980-0334 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
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
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
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
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
DS1982-0458 1982	Nelson, B.K., Depaolo, D.J.	Strontium and Neodymium Isotopic Composition of Franciscan Eclogite and blueschist: a Sampling of Subducted Crust?	Eos, Vol. 63, No. 45, P. 1133, (abstract.).	California, West Coast	Blank
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
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
DS1983-0406 1983	Lieberman, J.L., Rice, J.M.	Prograde Metamorphism of Marble and Peridotite in the Seiadultramafic Complex, California.	Geological Society of America (GSA), Vol. 15, N0. 4, P. 436. (abstract.).	California, West Coast	Harzburgite, Enstatite
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
DS1983-0571 1983	Shedenhelm, W.R.	Diamonds in California	Rock And Gem., Vol. 13, No. 2, PP. 8-11.	California, West Coast	Blank
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
DS1983-0631 1983	Westman, B.J.	If Diamonds Are Not Vigourously Sought, It Is Not Logical T	California Mining Journal, Vol. 52, No. 6, PP. 58-61.	California	Blank
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
DS1984-0199 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
DS1984-0205 1984	Crow, H.C.III.	Geochemistry of shonkinites, syenites and granites associated with the Sulfide Queen carbonatite body, Mountain Pass,California	Msc. Thesis University of Nevada Las Vegas, 56p	California	Rare Earth Elements (ree)., Rare Earths
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
DS1984-0411 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
DS1984-0700 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
DS1984-0746 1984	Tyson, R., Theisen, A.F., Granata, J.S., Hemphill, W.R.	Detection of Visible Luminescence from a Rare Earth Elements (ree) Bearing Carbonatite in Southern California.	Geological Society of America (GSA), Vol. 16, No. 4, P. 258. (abstract.)	California, West Coast	Related Rocks
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
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
DS1985-0245 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
DS1985-0284 1985	Heylmun, E.B.	Diamonds Near Oroville, California	California Mining Journal, Vol. 55, No. 4, December p. 63	California	History, News Item
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
DS1985-0490 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
DS1986-0082 1986	Boettcher, A.	The relationship between alkali basalts (basanites) and gabbroic Xenoliths in the Cima volcanic field, eastern Mojave desert,California	Geological Society of America (GSA) Abstract Volume, Vol. 18, No. 2, p. 87. (abstract.)	California	Basanite, Eclogite
DM1986-0911 1986	California Mining Journal	Australian mining and minerals	California Mining Journal, Vol. 55, No. 5, January p. 57	California	Brief mention of diamond industry, Economics
DS1986-0188 1986	Dodge, F.C.W., Kistler, R.W., Calk, L.C.	Deep crustal xenoliths, Chinese Peak. Sierra Nevada	Geological Society of America, Vol. 18, No. 2, p. 102. (abstract.)	California	Crustal genesis
DS1986-0249 1986	Foley, S.F., Taylor, W.R., Green, D.H.	The role of fluorine and oxygen fugacity in the genesis ofultrapotassicrocks	Contributions to Mineralogy and Petrology, Vol. 94, No. 2, pp. 183-192	Wyoming, Spain, Arkansas, Utah, Germany, California	Lamproite
DS1986-0285 1986	Geotimes	Dana misplaced diamonds... Sierra Nevada California	Geotimes, Vol. 31, No. 12, December p. 20	California	News item
DS1986-0337 1986	Hammond, J.G.	Geochemistry and petrogenesis of Proterozoic diabase in the southern Death Valley region of California	Contributions to Mineralogy and Petrology, Vol. 93, No. 3, pp. 312-321	California	Eclogite
DS1986-0409 1986	Jones, A.P., Wyllie, P.J.	Solubility of rare earth elements in carbonatite magmas,indicated by the liquidus surface in the CaCO3 Ca (OH) 2 la (OH) 3 at 1 K bar pressure	Applied Geochemistry, Vol. 1, No. 1, Jan. Feb. pp. 95-102	California	Carbonatite, Mountain Pass, Rare earth
DS1986-0425 1986	Kaufman, S.	COCORP: northern California -Nevada and southern Appalachians area. Part	Geophysics, Vol. 51, No. 11, November pp. 2162-2163	Midcontinent, Appalachia, California, Nevada	Geophysics, Tectonics
DS1986-0441 1986	Kingston, M.J.	Spectral reflectance feactures of kimberlites and carbonatites; the key to remote sensing for exploration	Proceedings of the Fourth International Kimberlite Conference, Held Perth, Australia, No. 16, pp. 472-474	South Africa, Botswana, Montana, California, Quebec	Diamond exploration, Remote sensing
DS1986-0454 1986	Kopf, R.W.	Misplaced diamond locality	California Geology, Vol. 39, No. 8, August pp. 185-187	California, Nevada County	Blank
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
DS1986-0611 1986	Noller, J.S.	Solid and fluid inclusions in mantle xenoliths: an analytical dilemma?	Geology, Vol. 14, No. 5, May pp. 437-440	California	Dish Hill, Inclusions
DS1986-0864 1986	Wilshire, H.G.	Xenoliths of the Cima volcanic field, California	Geological Society of America, Vol. 18, No. 2, p. 199. (abstract.)	California	Blank
DS1986-0865 1986	Wilshire, H.G., Noller, J.S.	Mantle/crustal xenoliths in Hawaiite lavas: the Cima volcanic field	Proceedings of the Fourth International Kimberlite Conference, Held Perth, Australia, No. 16, pp. 355-357	California	Blank
DS1987-0153 1987	DeWitt, E.	Road log from Las Vegas Nevada to Mountain Pass, California.Rare earth mineral deposits ,San Bernardino County-geochemistry of shonkinites, syenite sand granites wit	Seg Guidebook Series, Proterozoic Ore Deposits Of The Southwestern U.s., No. 1, pp. 1-56	California	Carbonatite
DS1987-0154 1987	Dewitt, E., Kwak, L.M., Zartman, R.E.	Uranium-thorium-lead (U-Th-Pb) and 40Ar/39Ar dating of the Mountain Pass carbonatite and alkalic igneous rocks, southeast California	Geological Society of America, Vol. 19, No. 7 annual meeting abstracts, p.642. abstrac	California	Shonkinite, Rare earths
DS1987-0242 1987	Gems & Gemology	Largest California diamond found	Gems and Gemology, Vol. 23, No. 2, Summer pp. 122-123	California, Trinity	News item Photograph- brief text, 14.33 carat rough
DS1987-0505 1987	Neilson , J.E.	Evolution of the lower lithosphere near the California-Arizonacrustaltransect:evidence from xenoliths	Geological Society of America, Vol. 19, No. 7 annual meeting abstracts, p.789. abstrac	California	Dish Hill
DS1987-0506 1987	Neilson, J.E., Budahn, J.R., Wilshire, H.G.	Fractionation of rare earth elements (REE) in a composite xenolith Dish Hill California	Geological Society of America, Vol. 19, No.6 March	California	USA, Dish Hill
DS1987-0669 1987	Shervais, J.W., Kimbrough, D.L.	Alkaline and transitional subalkaline metabasalts in theFranciscan Complex melange, California	Mantle metasomatism and alkaline magmatism, edited E. Mullen Morris and, No. 215, pp. 165-182	California	Analyses pyroxene p. 170, Metavolcanics p. 174
DS1987-0738 1987	Thy, P., Dilek, Y.	Boninitic dikes from a fracture basement of the Smartvillecomplex, northwest Sierra Nevada, California	Eos, Vol. 68, No. 44, November 3, p. 1519. abstract only	California	Blank
DS1988-0099 1988	Cabanes, N., Mercier, J.C.C.	Insight into the upper mantle beneath an active extensional zone- the spinel peridotite xenoliths from San-Quintin (BajaCalifornia, Mexico)	Contributions to Mineralogy and Petrology, Vol. 100, No. 3, pp. 374-382	California, Mexico	Mantle, Xenoliths
DS1988-0149 1988	Crowley, J., Rowan, M., Podwysocki, M., Meyer, D.	Evaluation of airborne visible/infrared imaging spectrometer dat a of the Mountain Pass, California carbonatite complex	National Technical Information Service N89-22169/1, Jet Propulsion Lab. Calif. Institute Tech. Proceedings of, pp. 155-161	California	Carbonatite, Remote Sensing
DS1989-0152 1989	Boudier, F., Le Sueur, E., Nicolas, A.	Structure of an atypical ophiolite: the Trinity Complex, easternKlamathMountains, California	Geological Society of America (GSA) Bulletin, Vol. 101, No. 6, June pp. 820-833	California	Ophiolite, Trinity Complex
DS1989-0230 1989	Castor, S.B., Gleason, J.D.	Proterozoic ultrapotassic intrusive rocks in southeastern California	Geological Society of America (GSA) Abstract Volume, Vol. 21, No. 5, p. 64. (abstract.)	California	Ultrapotassic ( Australia, Spain, Wyoming), Lamproite(?)
DS1989-0253 1989	Chemical Geology	Ophiolites and lithosphere of marginal seas	Chemical Geology, Vol. 77, No. 3/4 Nov. 15, pp. 165-390	Quebec, California, Italy	Ophiolites
DS1989-0366 1989	Donato, M.M.	Metamorphism of an ophiolitic tectonic melange,northern California Klamath Mountains, USA	Journal of Metamorphic Geology, Vol. 7, pp. 515-528. Database # 18179	California	Ophiolite, metamorphism
DS1989-0382 1989	Dyar, M.D., McGuire, A.V.	Crystal chemistry of clinopyroxene from mantle xenoliths	Geological Society of America (GSA) Annual Meeting Abstracts, Vol. 21, No. 6, p. A240. Abstract	California	Mantle, Dish Hill
DS1989-0383 1989	Dyar, M.D., McGuire, A.V., Ziegler, R.D.	Redox equilibration temperatures and crystal chemistry of coexisting minerals from spinel lherzolite mantle xenoliths	American MIneralogist, Vol. 74, No. 9-10, September-October pp. 969-980	California, Arizona, New Mexico, Saudi Arabia	Lherzolite, Mantle xenoliths
DS1989-0781 1989	Kingston, M.J.	Spectral reflectance features of kimberlites andcarbonatites:implications for remote sensing forexploration	Geological Society of Australia Inc. Blackwell Scientific Publishing, Special, No. 14, Vol. 2, pp. 1135-1145	Colorado, California	Remote sensing, Carbonatite
DS1989-0823 1989	Kopf, R.W.	First diamond find in California- when and where?	California Geology, Vol. 42, No. 7, July pp. 160-162	California	History, Alluvials/placers
DS1989-0937 1989	Mariano, A.N.	Nature of economic mineralization in carbonatites and related rocks	Carbonatites -Genesis and Evolution, Ed. K. Bell Unwin Hyman Publ, pp. 149-	California, China, Tanzania, Burundi, Brazil, Venezuela	Kenya, Australia, Rare earths, Economics
DS1989-0938 1989	Mariano, A.N.	Classification of rare earth elements (REE) in carbonatites	Reviews in Mineralogy: Geochemistry and mineralogy of Rare earth, Vol. 21, pp. 330-334	California, Malawi, Tanzania, Brazil, Burundi, China, Australia	Carbonatite, rare earth elements (REE).
DS1989-1028 1989	Miller, M.M.	Intra-arc sedimentation and tectonism: late Paleozoic evolution of the eastern Klamath terrane, California	Geological Society of America (GSA) Bulletin, Vol. 101, No. 2, February pp. 170-187	California	Tectonics, volcanism.
DS1989-1047 1989	Moore, D.E., Blake, M.C.Jr.	New evidence for polyphase metamorphism of glaucophane schist and eclogite exotic blocks in the FranciscanComplex, California and Oregon	Journal of Metamorphic Geology, Vol. 7, No. 2, March pp. 211-228	California, Oregon	Eclogite
DS1989-1266 1989	Reynolds, S.J., Spencer, J.E., Asmerom, Y., DeWitt, E., Laubach	Early Mesozoic uplift in west-central Arizona and southeastern California	Geology, Vol. 17, No. 3, March pp. 207-211	Arizona, California	Great Basin area, Proterozoic
DS1989-1459 1989	Storey, M., Rogers, G., Saunders, A.D., Terrell, D.J.	San Quintin volcanic field, Baja California, Mexico:within plate magmatism following ridge subduction	Terra Nova, Vol. 1, No. 2, pp. 195-202	California	Lherzolite, Mantle
DS1990-0190 1990	Ben Othman, D., Tilton, G.R., Menzies, M.A.	lead, neodymium, and Strontium isotopic investigations of kaersutite and clinopyroxene from ultramafic nodules and their host basalts: the nature of the subcontinental mantle	Geochimica et Cosmochimica Acta, Vol. 54, pp. 3449-3460	California, Arizona, New Mexico	Mantle, Nodules -kaersutites
DS1990-0290 1990	Castor, S.B.	Rare earth deposits in the southern Great Basiná#1	Great Basin Symposium Abstract Volume, April 1-6, held Reno, Nevada, p. 75. Abstract	California	Carbonatite, Mountain Pass
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
DS1990-0689 1990	Hickmott, D.D., Sorensen, S., Rogers, P.	Trace element abundances in minerals from a metasomatized garnet-amphibolite Catalin a schist ,southern California	Geological Society of America (GSA) Annual Meeting, Abstracts, Vol. 22, No. 7, p. A349	California	Geochemistry, Pixie trace elements
DS1990-0771 1990	Johnson, K.E., Davis, A.M., Bryndzia, L.T.	Trace element variations in coexisting clinopyroxene and amphibole:implications for mantle Metasomatism	Geological Society of America (GSA) Annual Meeting, Abstracts, Vol. 22, No. 7, p. A256	California	Dish Hill, Mantle Metasomatism
DS1990-0773 1990	Johnson, P.R., Zietz, I., Bond, K.R.	U.S. West coast revisited: an aeromagnetic perspective	Geology, Vol. 18, No. 4, April pp. 323-335	California, Cordillera	Geophysics -magnetics, Lineaments
DS1990-0875 1990	Kopf, R.W., Hurlburt, C.S., Koivula, J.I.	Recent discoveries of large diamonds in Trinity County, California	Gems and Gemology, Vol. 26, No. 3, Fall, pp. 212-219	California	Diamonds, Trinity County
DS1990-0893 1990	Kurosawa, M., Yurimoto, H., Sueno, S.	Hydrogen distribution in San Carlos olivine #2	International Mineralogical Association Meeting Held June, 1990 Beijing, Vol. 2, extended abstract p. 808-810	California	Petrology, Olivines
DS1990-0977 1990	Malpas, J., Moores, E.M., Pantayiotou, A., Xenophontos, C.	Ophiolites- oceanic crustal analogues	Cyprus Geological Survey, 733p. $ 65.00	Japan, Indonesia, California, Oregon, Mid-Atlantic Ridge, Scotland	Ophiolites, Book -ad
DS1990-0981 1990	Marcus, J.	Mining environment - California example	Engineering and Mining Journal, Vol. 191, No. 7, July pp. 16E, G, I, J.	California	Mining, Environment -legal
DS1990-1129 1990	Oh, C.W., Liou, J.G.	Metamorphic evolution of two different eclogites in the Franciscan California, United States (US)	Lithos, Vol. 25, No. 1-3, November pp. 41-54	California	Eclogites, San Franciscan complex
DS1990-1314 1990	Schmidt, N.	Plate tectonics and the Gulf of California region	Arizona Geology, Vol. 20, No. 2, Summer, pp. 1-4	California	Tectonics, Sedimentation
DS1990-1438 1990	Sychanthavong, S.P.H.	Crustal evolution and orogeny	A.a. Balkema, 339p. approx. $ 40.00	Africa, California	Table of contents, Crustal evolution, plate tectonics
DS1991-0237 1991	Castor, S.B.	Rare earth deposits in the southern Great Basin #2	Geology and Ore Deposits of the Great Basin, Symposium Proceedings, ed., Vol. 1, pp. 532-528	California	Rare earths, Carbonatite
DS1991-0385 1991	Dobretsov, N.L.	Blueschists and eclogites: a possible plate tectonic mechanism for their emplacement from the upper mantle	Tectonophysics, Vol. 186, pp. 253-268	Europe, California	Eclogites, Mantle
DS1991-0419 1991	Edelman, S.H.	Relationships between kinematics of arc continent collision and kinematics of thrust faults, folds, shear zones, and foliations in the Nevadan Orogen, California	Tectonophysics, Vol. 191, No. 3-4, June 1, pp. 223-236	California	Structure, Nevadan Orogeny
DS1991-0453 1991	Ernst, W.G.	Geological setting and inferred plate tectonic history of the Sawyers BarTerrane, central Klamath Mountains, Northern California	Canadian Mineralogist, Vol. 29, pt. 4, December pp. 1051-1068	California	Tectonics, Klamath Mountains
DS1991-0725 1991	Hole, M.J., Rogers, G., Saunders, A.D., Storey, M.	Relation between alkalic volcanism and slab-window formation	Geology, Vol. 19, No. 6, June pp. 657-660	California, British Columbia	Alkalic volcanism., Tectonics, Geochemistry
DS1991-0742 1991	Hsu, K.J.	Exhumation of high pressure metamorphic rocks	Geology, Vol. 19, No. 2, February pp. 107-110	California, Europe, China	Eclogites, Coesite
DS1991-0870 1991	Kingston, M.J.	Developments in remote sensing of carbonatites, airborne imaging spectrometry at Mountain Pass, California and Iron Hill, Colorado	Proceedings of Fifth International Kimberlite Conference held Araxa June 1991, Servico Geologico do Brasil (CPRM) Special, pp. 219-221	California	Carbonatite, Spectrometry
DS1991-0984 1991	Levy, M., Christie-Blick, N.	Tectonic subsidence of the early Paleozoic passive continental margin In eastern California and southern Nevada	Geological Society of America (GSA) Bulletin, Vol. 103, No. 12, December pp. 1590-1606	California, Nevada	Tectonics, Depositional aspects
DS1991-1249 1991	Oh, C.W., Liou, J.G., Maruyama, S.	Low temperature eclogites and eclogitic schists in Mn-rich metabasites in Ward Creek, California: Mn and iron effects on the transition blueschist andeclogites	Journal of Petrology, Vol. 32, No. 2, April pp. 275-302	California	Eclogites
DS1991-1273 1991	Osmerod, D.S., Rogers, N.W., Hawkesworth, C.J.	Melting in the lithospheric mantle: inverse modelling of alkali-olivinebasalts from the Big Pine volcanic field, California	Contributions to Mineralogy and Petrology, Vol. 108, pp. 305-317	California	Mantle, Basalts
DS1991-1426 1991	Riley, G.N., Jr., Kohlstedt, D.L.	Kinetics of melt migration in upper mantle type rocks	Earth and Planetary Science Letters, Vol. 105, pp. 500-521	California	Mantle, San Carlos, Melt migration
DS1991-1878 1991	Wilshire, H.G., McGuire, A.V., Noller, J.S., Turrin, B.D.	Petrology of lower crustal and upper mantle xenoliths from the Cimavolcanic field, California	Journal of Petrology, Vol. 32, No. 1, February pp. 169-200	California	Mantle, Xenoliths - Cima
DS1992-0074 1992	Banfields, J.F., Dyar, M.D., McGuire, A.V.	The defect microstructure of oxidized mantle olivine from Dish HillCalifornia	American Mineralogist, Vol. 77, No. 9-10, September-October pp. 977-986	California	Xenoliths, Mantle
DS1992-0075 1992	Banfields, J.F., Dyar, M.D., McGuire, A.V.	The defect structure of oxidized mantle olivine from Dish Hill, California	American Mineralogist, Vol. 77, pp. 977-86.	California	Metasomatism - mantle
DS1992-0121 1992	Biasi, G.P., Humphreys, E.D.	P-Wave image of the upper mantle structure of central California and southern Nevada	Geophysical Research Letters, Vol. 19, No. 11, June 2, pp. 1161-1164	California, Nevada	Mantle Structure, Geophysics -seismics
DS1992-0734 1992	Hudnut, K.W.	Geodesy tracks plate motion	Nature, Vol. 355, No. 6362, Feb. 20th. pp. 681-682	California	Plate tectonics, Geodesy
DS1992-0747 1992	Hutchison, I.P.G., Ellison, R.	Mine waste management.. a new book designed to help mining professionals reduce the risk to water resources	Lewis Publishing 2000 Corporate Blvd. northwest Boca Raton, Fla 33431 407 994-0555 $, 610p. ISBN 0-87371-746-5	California	Mine Waste management, Book -ad
DS1992-0883 1992	Kokelaar, P., Busby, C.	Subaqueous explosive eruption and welding of pyroclastic deposits	Science, Vol. 257, July 10, pp. 196-201	California	Mineral King metavolcanics, Volcanics
DS1992-1473 1992	Stevens, C.H.	A speculative reconstruction of the middle Paleozoic continental margin of southwestern North America	Tectonics, Vol. 11, No. 2, April pp. 405-419	California, Sierra Nevada	Tectonics, Paleotectonics
DS1992-1616 1992	Wakabayashi, J.	Nappes, tectonics of oblique plate convergence, and metamorphic evolution related to 140 million years of continuous subduction, Franciscan Complex, California	Journal of Geology, Vol. 100, No. 1, January pp. 19-40	California	Tectonics, Subduction
DS1992-1690 1992	Wolf, M.B., Saleeby, J.B.	Jurassic Cordilleran dike swarm- shear zones: implications for the Nevada norogeny and North American plate motion	Geology, Vol. 20, No. 8, August pp. 745-748	California	Owens Mountain area, Tectonics, shear zones
DS1993-0091 1993	Beard, B.L.	Extreme isotopic compositions of basanitic lavas from Deep Springs California: evidence for melting of mantle veins	Geological Society of America Annual Abstract Volume, Vol. 25, No. 6, p. A445 abstract only	California	Basanite lavas
DS1993-0326 1993	Dawers, N.., Anders, M.H., Schola, C.H.	Growth of normal faults: displacement length scaling	Geology, Vol. 21, No. 12, December pp. 1107-1110	California	Bishop Tuff, Structure
DS1993-0470 1993	Fuis, G.S., Clowes, R.M.	Comparison of deep structure along three transects of the western American continental margin.	Tectonics, Vol. 12, No. 6, December pp. 1420-1435.	Cordillera, California, Alaska, British Columbia	Tectonics
DC1993-2604 1993	Golconda Resoucres Ltd	Pipes discovered /claims staked. Two lamproitic pipes in Plumas County	George Cross Newsletter Press Release, No. 142. July 26, p. 3	California	News item -press release, Lamproite
DC1993-2605 1993	Golconda Resoucres Ltd	Diamond potential... claims and possible lamproite in Idaho.	Golconda Resources Ltd, Handout at Las Vegas Investment Meeting, 2p	California, Idaho	News item -promotional literature
DS1993-0752 1993	Johnson, C.M.	Mesozoic and Cenozoic contributions to crustal growth in the southwestern United States	Earth and Planetary Science Letters, Vol. 118, pp. 75-89	California, Nevada, Utah, Colorado, New Mexico, Arizona	Crust mantle boundary, Mass-age distributions, Geochronology
DS1993-1011 1993	McPhee, J.	Assembling California	Farrar Straus Giroux Publ,	California	Book -ad, Assembling California
DS1993-1012 1993	McPhee, J.	Assembly California	Farrar Straus, 304p	California	Tectonics, Book -ad
DS1993-1130 1993	Nielson, J.E, mBudahn, J.R., Unruh, D.M., Wilshire, H.G.	Actualistic models of mantle metasomatism documented in a composite xenolith from Dish Hill, California.	Geochemica et Cosmochimica Acta, Vol. 57, No. 1, January pp. 105-121.	California	Mantle, Dish Hill
DS1993-1271 1993	Pye, K.	The dynamics and environmental context of aeolian sedimentary systems	Geological Society of London Special Publication, No. 72, 330p	California, Arizona, India, Spain, Morocco, China, Florida	Book -table of contents, Sedimentology -aeolian systems, dune, geomorphology
DS1993-1307 1993	Richter, K., Carmichael, I.S.E.	Mega-xenocrysts in alkali olivine basalts: fragments of disrupted mantleassemblages.	American Mineralogist, Vol. 78, No. 11, 12, November-December pp. 1230-1245.	California, Mexico	Xenocrysts, Dish Hill
DS1993-1536 1993	Stimac, J.A., Goff, F., Bulletinen, T.	Crustal xenoliths from Clear Lake, California: granulites directly related to magmatic underplating?	The Xenolith window into the lower crust, abstract volume and workshop, p. 19.	California	Magma, Xenoliths
DS1993-1660 1993	Vernon, R.H., Collins, W.J., Paterson, S.R.	Pre-foliation metamorphism in low-pressure/high temperature terrains	Tectonophysics, Vol. 219, pp. 241-256	Australia, California	Tectonics, structure, Metamorphism heat source
DS1993-1795 1993	Yeats, R.S.	Converging more slowly.. Ventura Basin	Nature, Vol. 366, November 25, pp. 299-300	California	Tectonics, Basin
DS1994-0007 1994	Abdel-Rahman, A.F.M.	Alkali amphibole: a potential source of rare earth elements in felsicalkaline rocks.	Exploration and Mining Geology, Vol. 3, No. 2, April pp. 81-94.	Quebec, Labrador, California, Nubian Shield	Alkaline rocks, Deposit -Oka
DS1994-0129 1994	Beck, M.E., Russell, R., Burmester, et al.	A tale of two continents: tectonic contrasts between the central Andes And the N. A. Cordillera, as illustrated by their paleomagnetic signatures.	Tectonics, Vol. 13, No. 1, February pp. 215-	Brazil, California	Tectonics, Geophysics -paleomagnetics
DM1994-2025 1994	California Mining Journal	Large gem quality diamond discovered south of Laramie	California Mining Journal, Vol. 53, No. 6, February pp. 4-5.	California	News item, Redaurum
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
DC1994-2960 1994	Golconda Resoucres Ltd	Diamond projects.. brief note on Thorn Creek, Spanish Creek, Bulletin Run	Ibk Capital Executive Summary, 2p.	Idaho, California, Oregon	News item - press release
DS1994-0704 1994	Hanchar, J.M., Miller, C.F., Wooden, J.L., Bennett, Staude	Evidence from xenoliths for a dynamic lower crust eastern Mojave desert, California.	Journal of Petrology, Vol. 35, pt. 5, pp. 1377-1415.	California	Xenoliths
DS1994-0738 1994	Hausel, W.D.	Pacific coast diamonds: an unconventional source terrane	Wyoming Geological Survey Mineral Report, No. 94-8, 15p.	California	Diamonds
DS1994-0966 1994	Kushiro, I.	Recent experimental studies on partial melting of mantle peridotites at high pressures using diamond aggregates.	Journal of Geological Society of Japan, Vol. 100, No. 1, January pp. 103-110.	Lesotho, California	Experimental petrology, Mantle peridotites
DS1994-1174 1994	Merritts, D.J., Vincent, K.R., Wohl, E.E.	Long river profiles, tectonism and eustasy: a guide to interpreting fluvial terraces.	Journal of Geophysical Research, Vol. 99, No. B7, July 10, pp. 14, 031-51.	California	Geomorphology -not specific to diamonds, Terraces -fluvial
DS1994-1462 1994	Ring, U., Brandon, M.T.	Kinematic dat a for the Coast Range fault and implications for exhumation Of the Franciscan complex	Geology, Vol. 22, No. 8, August pp. 735-738	California, Cordillera	Tectonics, Subduction -Franciscan complex
DS1994-1618 1994	Singer, D.A.	Conditional estimates of the number of podiform chromite deposits	Nonrenewable Resources, Vol. 3, No. 4, Fall pp. 200-204	California, Oregon	Podiform chromites
DS1995-0108 1995	Barth, A.P., Wooden, J.L., et al.	Origin of gneisses in aureole of San Gabriel anorthosite complex-Proterozoic crustal evolution	Tectonics, Vol. 14, No. 3, June pp. 736-752	California	Crustal evolution, Anorthosite
DS1995-0204 1995	Braun, J., Beaumont, C.	Three dimensional numerical experiments of strain partitioning at oblique plate boundaries:	Journal of Geophysical Research, Vol. 100, No. B9, pp. 18, 059-74.	California, New Zealand	Tectonics
DS1995-0467 1995	Dyar, M.D., Martin, S.V., et al.	iron III and D/H in mantle derived augite megacrysts from Dish Hill, implications for alteration during transport	Geological Society of America (GSA) Abstracts, Vol. 27, No. 6, abstract p. A 48.	California	Spectroscopy, Hydrogen, Deposit -Dish Hill
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
DS1995-1092 1995	Leventhal, J.A., Reid, M.R., Montana, A., Holden, P.	Mesozoic invasion of crust by Mid Ocean Ridge Basalt (MORB) source asthenopheric magmas. U.S.Cordilleran interior	Geology, Vol. 23, No. 5, May pp. 399-402	California, Basin and Range, Cordillera	Mantle lithosphere, Mid Ocean Ridge Basalt (MORB).
DM1995-2344 1995	London Mining Journal	Diadem acquires diamond interest... Leek Springs Property, El DoradoCounty.	London Mining Journal, Vol. 325, No. 8352, Nov. 10, p. 349.	California	News item, Diadem Resources Inc.
DS1995-1211 1995	McGuire, A.V., et al.	Comparison of ferric iron in pyroxenites and associated composite xenoliths from Kilbourne Hole, Potrillo Maar	Geological Society of America (GSA) Abstracts, Vol. 27, No. 6, abstract p. A 48.	California	Pyroxenites, Deposit -Kilbourne Hole
DM1995-2545 1995	Northern Miner	The 40 sq. mile Volcano Rancheria District of northern California... option for 60% by Diadem.	Northern Miner, Vol. 81, No. 30, Sept. 25, p. 6.	California	News item, Diadem Resources
DM1995-2546 1995	Northern Miner	Diadem Resources has drilled the first hole on its property in LeekSprings, California.	Northern Miner, Vol. 81, No. 41, Dec. 11, p. 6.	California	News item, Diadem Resources
DS1995-1439 1995	Parsons, T.	The Basin and Range Province	Continental Rifts: evolution, structure, tectonics, No. 25, pp. 277-324	Nevada, California, New Mexico, Mexico, Arizona, Utah	Geophysics - seismics, Structure, heat flow
DS1995-1440 1995	Parsons, T.	The Basin and Range Province	Continental Rifts: evolution, structure, tectonics, No. 25, pp. 277-324.	Nevada, California, New Mexico, Mexico, Arizona, Utah	Geophysics - seismics, Structure, heat flow
DS1995-1447 1995	Paterson, S.R., Vernon, R.H.	Bursting the bubble of ballooning plutons: a return to nested diapir semplaced by multiple processes	Geological Society of America (GSA) Bulletin, Vol. 107, No. 11, Nov. pp. 1356-1380	Ireland, Australia, California	Magma chamber, Models -Ardara, Cannibal Creek, Papoose Flat
DS1995-1503 1995	Plumlee, G.	Mine drainage waters as potential economic resources	Seg Newsletter, No. 22, July pp. 6-7	California	Geochemistry, Mine waters
DS1995-1593 1995	Rogers, N.W., Hawkesworth, C.	Late Cenozoic basaltic magmatism in the western Great Basin, California andNevada.	Journal of Geophysical Research, Vol. 100, No. B6, June 10, pp. 10, 287-10, 302.	California	Magmatism
DS1995-1616 1995	Rowan, L.R.	Remote sensing studies of the Mountain Pass, California and Iron Hill Colorado carbonatite complexes: summary.	Iagod Giant Ore Deposits Workshop, J. Kutina, 14p.	California, Colorado	Carbonatite, Remote sensing
DS1995-1892 1995	Tchakerian, V.P.	Desert aeolian processes	Chapman and Hall Book, 340p.	California	Geomorphology -aeolian
DS1995-1893 1995	Tchakerian, V.P.	Desert aeolian processes	Chapman Hall, 340p	California	Geomorphology -desert aeolian processes, Book -ad
DS1996-0086 1996	Barnes, C.G., Ptersen, S.W., Kays, M.A.	Source and tectonic implications of tonalite trondhjemite magmatism in the Klamath Mountains.	Contributions to Mineralogy and Petrology, Vol. 123, No. 2, pp. 40-60.	California	Tectonics
DS1996-0092 1996	Barth, A.P., Schniederman , J.S.	A comparison of structures in the Andean Orogen of northern Chile and exhumed midcrustal structures..	International Geology Review, Vol. 38, No. 12, Dec. pp. 1075-1085	Chile, California	Tectonics, structure, Analogy of tectonic style
DS1996-0116 1996	Beran, A., Libowitzky, E., Armbruster, T.	A single crystal infrared spectroscopic and x-ray diffraction study of untwinned San Benito perovskite.	Canadian Mineralogist, Vol. 34, pt. 4, August, pp. 803-809.	California	Perovskite, Mineralogy
DS1996-0214 1996	Campos, C., Charvet, J., Lapierre, H.	Evidence of a Middle Late Devonian tectonic event in the Eastern Klamathterrane, northern California	Gsn Proceedings Geol. Ore Dep. American Cordillera, Vol. 2, pp. 823-838	California	Tectonics
DC1996-2720 1996	Diadem Resources Ltd	Diamonds in California? Leek Springs property, Amador County	George Cross Newsletter, No. 66, April 2.	California	News item - press release
DC1996-2721 1996	Diadem Resources Ltd	Diamond fragments confirmed... Silverstone prospecting syndicate	George Cross Newsletter, No. 92, May 10.	California	News item -press release, Moissanite
DC1996-2722 1996	Diadem Resources Ltd	More California diamonds confirmed	George Cross Newsletter, No. 70, April 10.	California	News item -press release, Silverstone Prospecting Syndicate
DS1996-0361 1996	Dickinson, W.R., Hopson, C.A., Saleeby, J.B.	Alternate origins of the Coast Range ophiolite (California): introduction and implications	Gsa Today, Vol. 6, No. 2, Feb. pp. 1-10	California	Ophiolites, Lithosphere
DS1996-0390 1996	Ducea, M.N., Saleeby, J.B.	Bouyancy sources for a large uprooted mountain range, Sierra Nevada, California: evidence from xenoliths...	Journal of Geophysical Research, Vol. 101, No. B4, April 10, pp. 8229-8244.	California	Mantle xenoliths, Sierra Nevada
DS1996-0423 1996	Environmental Law Institute	Hard rock mining: State approaches to environmental protection	Environmental Law Institute book, 1616 P. St. northwest Suite 200 Wash. DC 20036, $ 29.95	Arizona, California, Colorado, Idaho, Montana, Nevada	Book -ad, Environmental regulations, legal, laws
DS1996-0424 1996	Environmental Law Institute	Hard rock mining: state approaches to environmental protection	Environmental Law Institute, $ 30.00 United States	Arizona, California, Colorado, Idaho, Montana, Nevada	Legal, legislation, Book -ad
DM1996-1850 1996	Financial Post	Diadem financing... 1 million special warrants @ 5.75	Financial Post, May 23.	California	News item - press release
DS1996-0614 1996	Hausel, W.D.	Pacific Coast diamonds - an unconventional source terrane	Geological Society Nevada Proceedings Ore Deposits of American Cord., Vol. 2, pp. 925-934.	California, Oregon, Washington, Alaska	History
DM1996-1990 1996	London Mining Journal	California diatreme .... Leek Springs project	London Mining Journal, Vol. 327, No. 9409, Dec. 20/27, p. 496.	California	News item, Diadem Resources
DS1996-0909 1996	Maxson, J., Tikoff, B.	Hit and run collision model for the Laramide Orogeny, western UnitedStates	Geology, Vol. 24, No. 11, Nov. pp. 968-972	Nevada, California, Oregon	Tectonics, Laramide Orogeny
DM1996-2220 1996	Northern Miner	Diadem Resources Ltd. finds diamond fragments in California	Northern Miner, Vol. 82, No. 12, May 20, p. 6.	California	News item - press release
DM1996-2221 1996	Northern Miner	Golden State becomes prospective for diamonds... Rancharia district	Northern Miner, Exploring for Diamonds Feature, Vol. 81, No. 51, Feb. 19, p. B3.	California	News item, Diadem Resources
DM1996-2222 1996	Northern Miner	Diadem Resources drills in three countries... overview of all activities including diamonds in California.	Northern Miner, Vol. 82, No. 40, Dec. 2, p. B10.	California	News item, Diadem Resources
DM1996-2223 1996	Northern Miner	Golconda samples Plumas prospect.... Lamproitic tuff at Spanish Creekprospect.	Northern Miner, Vol. 82, No. 24, Aug. 12, p. 6.	California	News item, Golconda Resources
DS1996-1238 1996	Rytuba, J.J.	Cenozoic metallogeny of California	Gsn Proceedings Geol. Ore Dep. American Cordillera, Vol. 2, pp. 803-822	California	Metallogeny, Gold
DS1996-1548 1996	Wilson, M.R., Kyser, T.K., Fagan, R.	Sulfur isotope systematics and platinum group element behaviour in rare earth elements (REE)enriched metasomatic fluids: a study	Geochimica et Cosmochimica Acta, Vol. 60, No. 11, June pp. 1933-1942.	California	Mantle xenoliths, Dish Hill
DS1996-1605 1996	Zheligovskiy, V.A., Podvigina, O.M., Sadovskiy, A.M.	Some properties of crustal structure in California as indicated by topography and bouguer anomalies...	Doklady Academy of Sciences, Vol. 336, pp. 15-20.	California	Geophysics -seismics, Tectonics -faulting
DC1997-2224 1997	Blue Emerald Resources Inc	Interest in diamond prospect.. being acquired in California	George Cross Newsletter, No. 36, Feb. 20.	California	News item - press release, Silverstone Prospecting Syndicate
DS1997-0112 1997	Borg, L.E., Clynne, M.A., Bulletinen, T.D.	The variable role of slab derived fluids in the generation of a suite of primitive calc alkaline lavas	Canadian Mineralogist, Vol. 35, No. 2, April pp. 425-452.	California	Subduction, tectonics, Alkaline related rocks
DS1997-0199 1997	Clynne, M.A., Borg, L.E.	Olivine and chromian spinel in primitive calc alkaline and tholeiitic lavas from southernmost Cascade Range	Canadian Mineralogist, Vol. 35, No. 2, April pp. 453-472.	California	Subduction, tectonics, Mantle fertility
DM1997-1443 1997	Financial Post	Diadem stock up on diamond rumors.... find on Lake Springs Californiaproperty.	Financial Post, Feb. 13.	California	News item, Diadem Resources Ltd.
DS1997-0534 1997	Ingersoll, R.V.	Phanerozoic tectonic evolution of central California and environs	International Geology Review, Vol. 39, No. 11, Nov, pp. 957-972	California	Tectonics
DS1997-0535 1997	Ingersoll, R.V.	Phanerozoic tectonic evolution of central California and environs	International Geology Review, Vol. 39, No. 11, Nov. pp. 957-972.	California	Tectonics
DS1997-0677 1997	Lewis, C.J.	Diamond genesis in a subduction environment, Sierra Nevada USA *REF ONLY	Ph.d. Thesis, University of California, Berkeley REF ONLY,	California	Diamond genesis
DS1997-0678 1997	Lewis, C.J.	Diamond genesis in a subduction environment, Sierra Nevada, USA	University of of California, Ph.d thesis	California	Diamond genesis, Thesis
DM1997-1744 1997	Mining Magazine	Diadem encouraged at Leek Springs..	Mining Magazine, Vol. 177, No. 4, Oct. p. 263.	California	News item, Diadem Resources
DS1997-0824 1997	Mukasa, S.B., Wilshire, H.G.	Isotopic and trace element compositions of upper mantle and lower crustal xenoliths CIMA volcanic field...	Journal of Geophysical Research, Vol. 102, No. 9, Sept. 10, pp.20, 133-148.	California, Mantle	Xenolith, Lithospheric subcontinental mantle
DM1997-1840 1997	Northern Miner	Diadem tests California samples...	Northern Miner, Vol. 82, No. 52, Feb. 24, p. 6.	California	News item, Diadem Resources
DS1997-0978 1997	Rowan, L.C.	Remote sensing studies of the Mountain Pass, California and Iron Hill, Colorado carbonatite complexes: summary	Global Tectonics and Metallogeny, Vol. 6, No. 2, March pp. 119-124.	California, Colorado	Carbonatite, Deposit - Mountain Pass, Iron Hill
DS1997-1034 1997	Shibakusa, H., Maekawa, H.	Lawsonite bearing eclogitic metabasites in the Cazadero area, northernCalifornia.	Mineralogical Magazine, Vol. 61, No. 1-4, pp. 163-180.	California	Eclogite
DS1997-1129 1997	Svorak, J.J., Dzurisin, D.	Volcano geodesy: the search for magma reservoirs and the formation of eruptive vents	Reviews of Geophysics, Vol. 35, No. 3, August pp. 343-384	Hawaii, California, Italy, Papua New Guinea, Japan	Magma, Vents
DS1997-1135 1997	Synkowski, E.	I would like to point diamond hunters in the direction..... HayforkCreek....	International California Min. Journal, Vol. 67, No. 4, Dec. p. 3.	California	News item, Popular geology
DS1998-0126 1998	Bird, P.	Kinematic history of the Laramide Orogeny in latitudes 35 - 49 N (North) western United States.	Tectonics, Vol. 17, No. 5, Oct. pp. 780-801.	California, Wyoming, Utah, Montana	Tectonics - Sevier Orogeny, Rocky Mountain Foreland, latitudes 35 - 49 North
DS1998-0141 1998	Borg, L.E., Clynne, M.A.	The petrogenesis of felsic calc-alkaline magmas from the southernmostCascades: origin partial melting....	Journal of Petrology, Vol. 39, No. 6, Jun. pp. 1197-1228.	California	Basaltic lower crust, Magma - alkaline rocks
DS1998-0334 1998	Deep Probe Working Group	Probing the Archean and Proterozoic lithosphere of western North America	Gsa Today, Vol. 8, No. 7, July, pp. 1-6, 16-17.	Wyoming, California, Colorado Plateau	Geophysics - seismics, Mantle
DS1998-0368 1998	Ducea, M., Saleeby, J.	Crustal recycling beneath continental arcs: silica rich glass inclusions in	Earth and Planetary Science Letters, Vol. 156, No. 1-2, Mar. 15, pp. 101-116.	California, Sierra Nevada	Xenoliths, Subduction
DM1998-1778 1998	Financial Post	Diadem looks to wash away Bre-X stain... brief mention of Leek Springs property and northwest Territories.	Financial Post, Feb. 5, p. 8.	California	News item, Diadem Resources Ltd.
DM1998-1838 1998	Globe & Mail	Diadem Resources.... private placement $ 5.1 million. for its LeekSprings.	Globe and Mail, July 3, p. B19.	California	News item - press release, Diadem Resources
DM1998-1839 1998	Globe & Mail	Diadem resources cancels placements and President resigns	Globe and Mail, Sept. 16	California	News item, Diadem resources
DM1998-1840 1998	Globe & Mail	Diadem Resources Ltd. private placement with Del Mar Financial Services for$ 3m for Leek Springs.	Globe and Mail, Oct. 3.	California	News item, Diadem Resources Ltd.
DS1998-0617 1998	Hey, R.N.	Speculative propogating rift subduction zone interactions with possible consequences for margin...	Geology, Vol. 26, No. 3, March pp. 247-250.	California	Continental margin evolution, Subduction
DM1998-2257 1998	Northern Miner	Diadem finances California exploration... Leek Springs	Northern Miner, Vol. 84, No. 35, Oct. 26-31, p.B12.	California	News item, Diadem Resources
DM1998-2258 1998	Northern Miner	Diadem funds work at Leek Springs	Northern Miner, Vol. 84, No. 21, July 20, p. 14.	California	News item, Diagem International Resource
DM1998-2259 1998	Northern Miner	Golconda eyes California gems.. northern area - olivine lamproite	Northern Miner, Vol. 84, No. 26, Aug. 24-30, p. 14.	California	News item, Golconda Resources
DS1998-1269 1998	Ruppert, S., Fliedner, M.M., Zandt, G.	Thin crust and active upper mantle beneath the southern Sierra Nevada In the western United States.	Tectonophysics, Vol. 286, No. 1-4, Mar. 10, pp. 237-252.	Nevada, California	Geophysics - seismic
DS1998-1323 1998	Shankland, T.J., Duba, A.G.	Hydrogen and electrical conductivity of mantle olivine	Terra Nova, Abstracts, Vol. 10, suppl. 1, 58. abstract	Mantle, California	Olivine, San Carlos
DM1999-0857 1999	Basel Magazine	Gemological Institute of America (GIA) symposium.... that's infotainment	Basel, Sept. p. 33, 34, 36.	California	News item, Gemological Institute of America (GIA) overview of symposiuM.
DS1999-0049 1999	Beard, B.L., Glazner, A.F.	Petrogenesis of isotopically unusual Pliocene olivine leucitites from Dee Springs Valley, California.	Contributions to Mineralogy and Petrology, Vol. 133, pp. 402-417.	California	Magma - potassic, Subduction
DS1999-0059 1999	Bennett, R.A., Davis, J.L., Wernicke, B.P.	Present day pattern of Cordilleran deformation in the Western UnitedStates.	Geology, Vol. 27, No. 4, Apr pp. 371-4.	California, Basin and Range	Geodetic image, GPS, VLBI
DC1999-1497 1999	Diadem Resources Ltd	Diadem's diamond property up-date.Due diligence on Leek Springs propertyunderway.	Diadem Resources Ltd., Oct. 8, 1p.	California	News item - press release
DS1999-0211 1999	Feldstein, S.N., Lamge R.A.	Pliocene potassic magmas from the Kings River Basin, Sierra Nevada:evidence for melting subduction mantle	Journal of Petrology, Vol. 40, No. 8, Aug. pp. 1301-20.	California	Tectonics - subduction
DS1999-0244 1999	Geochemical Evolution and Metallogeny of Continents	What is the origin of the diamonds from eastern Australia?	Gemoc Annual Report, pp. 24-5.	Australia, New South Wales, Urals, California, Kalimantan	Diamond genesis, Subduction
DS1999-0271 1999	Gruau, G., Bernard Griffiths, J., Lecuyer, C.	The origin of U shaped rare earth patterns in ophiolite peridotites:assessing the role of secondary alteration	Geochimica et Cosmochimica Acta, Vol. 62, No. 21-22, Nov. pp, 3545-60.	California	Melt rock reaction, Trinity ophiolite - harzburgite, lherzolite
DS1999-0357 1999	Kenner, S., Segall, P.	Time dependence of the stress shadowing effect and its relation to the structure of the lower crust.	Geology, Vol. 27, No. 2, Feb. pp. 119-22.	Mantle, California	Rheology, Shear-zone model
DC2000-1810 2000	Diadem Resources Ltd	Diadem's Leek Springs, California diamond property sparks renewed interest	Diadem Resources Ltd. Ltd., July 19, 2p.	California	News item - press release
DC2000-1811 2000	Diadem Resources Ltd	Diadem projects commence active exploration... brief mention of California	Diadem Resources Ltd., Nov. 13, 1p.	California	News item - press release
DC2000-1812 2000	Diadem Resources Ltd	Diadem completes agreement for Bilbao property, Mexico.... mentions diamonds in California property.	Diadem Resources Ltd., Oct. 5, 1p.	California	News item - press release
DC2000-1814 2000	Diadem Resources Ltd	Announces the completion of a CDN$500, 000 financing to discharge a $500, 000 convertible debenture.	Diadem Resources Ltd. Inc., July 24, 1p.	Ontario, California	News item - press release
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
DS2000-0612 2000	Manley, C.R., Glazner, A.F., Farmer, G.L.	Timing of volcanism in the Sierra Nevada of California: evidence for Pliocene delamination of batholithic root	Geology, Vol. 28, No. 9, Sept. pp. 811-14.	California	Tectonics, Magmatism - alkaline
DS2000-0686 2000	Morgan, J.V., Warner, M.R., Collins, G.S., Meloshm H, J.	Peak ring formation in large impact craters: geophysical constraints from Chicxulub.	Earth and Planetary Science Letters, Vol.183, No.3-4, pp. 347-54.	California	Impact craters, Structure - ring dikes
DS2000-0912 2000	Soedjatmiko, B., Christensen, N.I.	Seismic anisotropy under extended crust: evidence from upper mantle xenoliths, Cima Volcanic Field.	Tectonophysics, Vol.321, No.3, June 15, pp. 279-96.	California	Geophysics - seismics, Xenoliths - olivine
DC2001-2193 2001	Ateba Technology and Environmental Inc.	Update on the company... brief mention of diamond exploration	Ateba Tech., July 20, 1p.	Northwest Territories, California, Central African Republic	News item - press release
DC2001-2194 2001	Ateba Technology and Environmental Inc.	Discussions still continuing between Ateba and Fenicem	Ateba Technology, Oct. 30, 1p.	Northwest Territories, California, Central African Republic	News item - press release
DS2001-0210 2001	Cope, L.W.	Underground placer mining... Formation of buried placers	Engineering and Mining Journal, Vol. 202, no, 4, Apr. pp. 42-45.	California, Australia	Alluvials, Mining
DC2001-2327 2001	Diadem Resources Ltd	Diadem updates schedule for filing of annual and interim financial statements and date of annual meeting	Diadem Resources, Nov. 6, 2p.	Ontario, California	News item - press release
DS2001-0273 2001	Ducea, M.	The California Arc: thick granitic batholiths, eclogitic residues, lithospheric scale thrusting...	Gsa Today, Nov. pp. 4-10.	California	Magmatism - magmatic flare ups, Hot spots, tectonics
DC2001-2520 2001	Mountain Province Diamonds Inc	Announces private placement... up to $ 960,000	Mountain Province Diamonds Inc., Nov. 12, 1p.	Northwest Territories, California	News item - press release
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
DS2001-1149 2001	Tanton, L.T.E., Grove, T.L., Donnelly-Nolan, J.	Hot shallow mantle melting under the Cascades volcanic arc	Geology, Vol. 19, No. 7, July pp. 631-4.	California, Oregon	Subduction - not related to diamonds
DS2001-1190 2001	Van Wijk, J.W., Givers, R., Furlong, K.P.	Three dimensional thermal modeling of the California upper mantle: a slab window vs. stalled slab.	Earth and Planetary Science Letters, Vol. 186, No. 2, March 30, pp. 175-86.	California	Subduction, Geothermometry
DS2002-0088 2002	Badham, J.P.N., Rohtert, W.	Unconventional diamond discoveries - Clifford's Rule is no longer	Transactions of the Institution of Mining and Metallurgy, AusIMM Proceedings, Vol. 111, Sect. B., pp. B134,5. abstract	Ontario, Wawa, California	Diamond genesis, Model - craton
DS2002-0129 2002	Bebout, G.E., Barton, M.D.	Tectonic and metasomatic mixing in a high T subduction zone melange insights into the geochemical evolution of the slab mantle interface.	Chemical Geology, Vol. 187,1-2,pp. 79-106.	California, mantle	Petrology - mineralogy, mixing mafics, ultramafics, Subduction zone
DC2002-2682 2002	Diadem Resources Ltd	Diadem announces joint venture and reports on annual meeting. Brief mention of diamonds.	Diadem Resources, Jan. 28, 2p.	California	News item - press release
DC2002-2770 2002	Dianor Resources Inc	Restructuring... Ryder as new President	Dianor Resources, Jan. 21, 1p.	Quebec, California	News item - press release
DS2002-0642 2002	Hamilton, W.B.	Driving mechanism and dynamic framework of plate tectonics: implications of top side tectonics.	Geological Society of America Annual Meeting Oct. 27-30, Abstract p. 21.	California, mantle	Subduction
DS2002-0930 2002	Lee, C.T.A.	Platinum group element geochemistry of peridotite xenoliths from the Sierra Nevada and the Basin and Range, California.	Geochimica et Cosmochimica Acta, Vol. 66, 22, pp. 3987-4005.	California	Xenoliths - PGE
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
DS2002-1375 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
DS2002-1578 2002	Tapani, O., Calzia, J.P., Kosunen, P.J.	Geochemistry of Mesozoic plutons, southern Death Valley region: insights into origin of Cordilleran magmatism	Contribution to Mineralogy and Petrology,	California	Magmatism
DS2002-1797 2002	Zoback, M.D., Townend, J., Grollimund, B.	Steady state failure equilibrium and deformation of intraplate lithosphere	International Geology Review, Vol. 44, No. 5, pp. 383-401.	California, Missouri, mantle	Geothermometry, heat flow, Geophysics - New Madrid seismic zone
DS2003-0163 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, pp. 267-70.	California, Oregon, Washington, Cascadia	Geophysics - seismics, Subduction
DS2003-0164 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, pp. 267-70.	California, Oregon	Geophysics - seismics
DS2003-0165 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. 267-270.	California, Oregon, Cascades	Geophysics - seismics, Subduction, slabs
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
DC2003-2374 2003	Diadem Resources Ltd	Diadem announces completion of project review and future corporate focus. Leek	Diadem Resources Ltd., June 19, 1p.	California	News item - press release
DC2003-2377 2003	Diadem Resources Ltd	Diadem acquires Otish Mountain diamond claims. Mentions Leek Springs	Diadem Resources Ltd., July 31, 2p.	Quebec, California	News item - press release
DS2003-0380 2003	Elkins-Tanton, L.T., Grove, T.L.	Evidence for deep melting of hydrous metasomatized mantle: Pliocene high potassium	Journal of Geophysical Research, Vol. 108, B8, Aug. 2, 10.1029/2002jb002168.	California	Geophysics - seismics, Metasomatism
DS2003-0507 2003	Grove, T.L., Elkins-Tanton, L.T., Hesse, M.	Melting processes in continental lithosphere: effects of mantle metasomatism on melt	Geological Society of America, Annual Meeting Nov. 2-5, Abstracts p.395.	California, Mexico	Metasomatism - not specific to diamonds
DS2003-0718 2003	King, R.L., Kohn, M.J., Eiler, J.M.	Constraints on the petrologic structure of the subduction zone slab mantle interface from	Geological Society of America Bulletin, Vol. 115, 9, pp. 1097-1109.	California	Subduction zone
DC2003-2612 2003	Namakwa Diamond Co NL	Namakwa completes sampling phase..	Namakwa Diamonds, June 9, 1/4p.	South Africa, west coast	Press release
DS2003-1439 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.	California	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
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
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
DS200412-0730 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
DS200412-1006 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
DS200412-1352 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
DS200412-1503 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
DS200412-2070 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
DS200412-2101 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
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
DS200512-0446 2004	Hough, R.	Impact diamonds - formed in an instant.	Rough Diamond Review, No. 6, Sept.pp.	United States, California	Meteorite
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
DS200612-0782 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
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
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
DS200812-0253 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
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
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
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
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
DS201112-0580 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
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
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
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.
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
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
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.
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.
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
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
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.
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.
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
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
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.
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
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.
DM201910-2396 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
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
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.
DM202102-0269 2021	Diamonds.net	GIA spots rare inscription fraud in simulant. ( moissanite)	diamonds.net, Jan. 27, 1p.	United States, California	News item - synthetics
DM202107-1172 2021	Diamonds.net	GIA seeing record submissions, output backlog.	diamonds.net, June 23, 1/4p.	United States, California	News item - GIA
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.
DS202110-1633 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
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.