 | | Report (volume) | | COMPILED BY SAMUEL SANFORD AND RALPH W. STONE WASHINGTON GOVERNMENT PRINTING OFFICE 1914 USEFUL MINERALS...it helpful to refer to Survey Bulletin 507, "The mining districts of the western United States," and to...abundant, it may have been completely exhausted by mining or quarrying. Deposits of minerals of wide distribution...because they occur in sufficient quantity to warrant mining for their usual products but because they furnish...H. Purdue, Nashville, Tenn. California........Mr. William H. Storms, San Francisco. Prof. A. F. Rogers |  | | Report (volume) | | AND SAMUEL SANFORD A revision of Bulletin 585 WASHINGTON GOVERNMENT FEINTING OFFICE 1917 CONTENTS................................................ California....................................................................................... 102 District of Columbia ................................................................................ Washington................................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to |  | | Report (volume) | | species UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1961 'UNITED STATES DEPARTMENT OF THE INTERIOR...location and means of access to all the metallic mining districts in the State, as well as a large number...identified in Colorado-more than in any State except California. In addition to these true species, dozens of..._____________________________ 595 Copper: Chalcopyrite _________________________________________ -...documented summary of the beginning of Colorado mining history. Part of his summary is given here in the |  | | Journal (issue) | | S STATE OF CALIFORNIA DEPARTMENT OF NATURAL RESOURCES RICHARD SACHSE, Director DIVISION OF MINES...MINES FERRY BUILDING, SAN FRANCISCO WALTER Vol. 37 W. BRADLEY State Mineralogist January, 1941 No.... CALIFORNIA JOURNAL OF MINES AND GEOLOGY QUARTERLY CHAPTER OF STATE MINERALOGIST'S REPORT XXXVII STATE...OF MINES FERRY BUILDING, SAN FRANCISCO CALIFORNIA 95183 LIBRARY UNIVERSITY OF- CALIFORNIA DAV I 1...A. Logan, District Mining Engineer C. Jenkins, Chief Geologist McK. Laizure, District W. Burling |  | | Report (issue) | | Commodities: Main: Cu Other: Ore minerals: Chalcopyrite Gangue minerals: Geologic description: Skarn...Skarn boulders containing approximately 5% chalcopyrite were found at this locality in 1968 (MacKevett and...mineralization: Deposit model: Cu skarn deposit (Cox and Singer, 1986; model 18b) Deposit model number (After...Cu, Pb, Zn Other: Ore minerals: Arsenopyrite, chalcopyrite, galena, pyrite, sphalerite Gangue minerals:...argillite. The sulfide minerals are arsenopyrite, chalcopyrite, galena, pyrite, and sphalerite. A sample of |  | Naranjo, Andrés, Horner, Johannes, Jahoda, Rudolf, Diamond, Larryn W., Castro, Adriana, Uribe, Aura, Perez, Carolina, Paz, Hermel, Mejia, Carlos, Weil, Jonas (2018) La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls, and Age Constraints. Economic Geology, 113 (3) 553-578 doi:10.5382/econgeo.2018.4562 | Journal (article/letter/editorial) | | GEOLOGISTS Vol. 113 May No. 3 La Colosa Au Porphyry Deposit, Colombia: Mineralization Styles, Structural Controls...Switzerland Abstract The La Colosa porphyry Au deposit is located on the eastern flank of the Central...within the Middle Cauca metallogenic belt. The deposit contains more than 800 t (22.37 Moz) Au at grades...to 1 g/t Au, associated with pyrite and minor chalcopyrite, molybdenite, and magnetite in the porphyries...overprinting all other alteration types at the deposit. A ~200°C hydrothermal brine (21–28 wt % NaCl equiv) |  | | Journal (volume) | | DECEMBER 1913 Mining and 429 MARKET STREET Scientific Press SAN FRANCISCO, CALIFORNIA^ 1'^ h i* zcv...company report Abosso mine. West Africa Acacia Mining Co., Colorado 270, Editorial. Accident prevention...Arizona Accident Gold Mining Co., Subil mine, French Gulch, Rules, Copper California Accidents, coal-mine...Tramway, one-rope Tramway, Saline Valley Salt Co., California . . . . . . Aerolites Africa, copper In...apreciatlon. On fissure veins i Ahmeek Copper Mining . . . Co., . .F. . . 620 386 366 1 978 |  | | Book | | i I 3 LIBRARY J ()l" T" E UNIVERSITY OF CALIFORNIA. (3r! FT L) 1: EM Jewish)” _....9%939 ‘ Cid/$5.... . . . . . . . . . . . _ . _ . Future of the district . _ . . . . . . . . _ . . . . . . . . . . . .... . . . . . . . . . _ . . . . . . . . . . . . California mine . . _ . . . . . . . . . i . . . . . . ....Index map showing position of the Rico special district . . . . . . . . . . .. 239 40. Cross section of...RANSOME. INTRODUCTION. Field work in the Rico district was begun on the 1st of July, 1900, with Mr. Alfred |  | | Report (volume) | | REGION SOUTHEASTERN ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT PRINTING OFFICE 1912 CONTENTS........................................... California prospect....................................................... Au.ro.ra. B.Qrealis prospect,,,,,,,, ,,,, ,,,,.,,,,,,,,,,,,,,,,,,,,, .-.... 3 5 7 8 9 9...Bessie prospect........................................................ 48 Alaska-Washington property...................................... 50 Qleson prospect.............................................. |  | | Journal (issue) | | COVERED BY PATENTS AND APPLICATIONS IN THE MAJOR MINING cewrens: oF THe woRtoes F _—, pf fj / N >,...feel that you are getting good i Familiar with mining structions, Ay as a = A i) al )q equipment ...STEEL CORPORATION Sales Offices: Los Angeles, San Francisco, Portiand, Seattle, Honolulu Wire Rope...Rope Depots: Los Angeles, *\" we ae ee San Francisco, Portland, Seattle BETHLEHEM PACIFIC monthly...“Inc , 124 West Fourth Street, MINING WORLD, published Ente vear. California, U.S \ Subsscription in United |  | | Report (issue) | | (Prindle and Katz, 1913, p. 146). Both prospecting and mining have been reported (Mertie, 1934, p. 192). A sample...mineralization: Deposit model: Placer gold deposit (Cox and Singer, 1986; model 39a). Deposit model number...LG001 Workings/exploration: Both prospecting and mining have been reported (Mertie, 1934, p. 192). Production...Production notes: Both prospecting and mining have been reported, but there is no data on production (Mertie...Placer mining was reported in 1904 and 1918 in stream placers near the mouth of the creek; mining may have |  | | Journal (volume) | | recent developments and advances evolved in the mining and metallurgical world. Embracing the latest statistics...10 10 10 10 10 10 10 10 10 10 The Engineering & Mining Journal 505 Pearl Street, New York 20 Bucklersbury...and Mining Journal; Member Institution of Chemical Mining Member American Institute of Mining Engineeri;...ENGINEERING AND MINING JOURNAL (Incorporated) I906 Copyright, 1906, BY The Engineering and Mining Journal ...Professor of Mining, New Mexico State School of Mines, Socorro, New Mexico. Pyrites Mining and Milling |
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