California - Technical, Media and Corporate |
Posted/ Published | Author | Title | Source | Region | Keywords |
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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. |