 | | Report (issue) | | Archive in 2012 with funding from University of California, Davis Libraries http://www.archive.org/det...RESOURCES OF CALAVERAS COUNTY, CALIFORNIA By WILLIAM B. CLARK, Mining Geologist California Division of...LYDON, Mining Geologist California Division of Mines and Geology County Report 2 CALIFORNIA DIVISION...1962 UNIYERSITY OF CALIFOI DAVIS STATE OF CALIFORNIA Edmund G. Brown, Governor THE RESOURCES Hugo...MINES AND GEOLOGY Ian Campbell, State Geologist COUNTY REPORT Price $4.00 2 6 1 - CONTENTS ABSTRACT |  | | Journal (article/letter/editorial) | | in northwestern Nevada and southeastern Oregon, USA Stephen B. Castor ) , Christopher D. Henry NeÕada...School of Mines, Mail Stop 178, Reno, NV 89557, USA Received 14 June 1999; accepted 24 September 1999...elements and contain uraninite, coffinite, chalcedony, opal, and numerous sulfides. At Virgin Valley, deposits...phases include opal, organic material, and pyrite. Deposits in the Lakeview U district, Oregon are hosted...elements; the mineral assemblage includes coffinite, opal, and numerous sulfides. Minor U occurrences at Buff |  | | Report (issue) | | Minerals of California By ARTHUR S. EAKLE, MARCH, Ph.D. 1914 Issued by California State Mining Bureau...Hon Hiram W. Johnson, Governor of the State of California. Sir: I have the honor to transmit Bureau...Minerals of herewith Bulletin 67 of the State Mining California. This work was made possible at this date...Bureau. and Mineralogy of the University of California, with this Eakle has given freely of his time...Minerals Distribution by Counties Bibliography on California Minerals Index to Minerals — 197 204 210 220 |  | | Journal (article/letter/editorial) | | mineralization in the southwestern Nevada volcanic field, USA S t e p h e n B. C a s t o r a a n d S t e v e n...School of Mines, Universityof Nevada, Reno, NV 89557. USA bDepartment of Geological Sciences, Mackay School...School of Mines, Universityof Nevada, Reno. NV 89557, USA (Received August 27, 1991; accepted after revision...mineralization in the southwestern Nevada volcanic field, USA. Ore Geol. Rev., 7: 193-223. The southwestern Nevada...Mountain. Sedimentary-rock-hosted mineralization at Mine Mountain is spatially associated with a thrust fault |  | | Report (issue) | | MINERALS OF CALIFORNIA THE GOLDEN BEAR The Golden Bear Nugget of Yankee is NUGGET said to have...have been found in the mining the nugget Jim, Placer County, California, in 1871 by a small girl in...are nuggets. The nugget was acquired by the California Federation of Minerologicol Societies insignia...in in the Cali- San Francisco MINERALS OF CALIFORNIA CENTENNIAL VOLUME by JOSEPH (1866-1966) MURDOCH...University of Caliiomia, Los Angeles and ROBERT WALLACE WEBB University of CcdifomicL Santa Barbara With |  | John, D. A., Hofstra, A. H., Fleck, R. J., Brummer, J. E., Saderholm, E. C. (2003) Geologic Setting and Genesis of the Mule Canyon Low-Sulfidation Epithermal Gold-Silver Deposit, North-Central Nevada. Economic Geology, 98 (2) 425-463 doi:10.2113/gsecongeo.98.2.425 | Journal (article/letter/editorial) | | Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 ALBERT H. HOFSTRA, U.S. Geological Survey...Geological Survey, 345 Middlefield Road, Menlo Park, California 94025 JON E. BRUMMER, Phelps Dodge Tyrone, Inc...Company, Yanacocha, Peru Abstract The Mule Canyon mine exploited shallow, low-sulfidation, epithermal Au-Ag...of the Northern Nevada rift in northern Lander County, Nevada. Mule Canyon consists of six small deposits...e-mail, djohn@usgs.gov *Present address: Newmont Mining Corp., PO Box 388, Valmy, NV 89438. 0361-0128/01/3335/425-39 |  | | Journal (article/letter/editorial) | | July/August: Pyrite, quartz, and galena, Camp Bird mine, Ouray, Colorado. Barbara Muntyan specimen, John...November/December: Gold on quartz, Eagle's Nest mine, Placer County, California. Wayne and Dona Leicht specimen, Harold...310-13 Amethyst Discovery on Deer Hill, Stow, Oxford County, Maine, W. B. Thompson, 44-51 Anatase, Colorado...Walker Vein, Caldwell Stone Company Quarry, Boyle County, Kentucky, 254-58 Andorite, 27 Andradite, Arkansas...and Silver-bearing Minerals, 16-38 Benitoite, California, 379, 392-95 Biotite, Arkansas, 185 Blakeite |  | | Journal (article/letter/editorial) | | particularly IS epithermal orebodies in any particular district, irrespective of whether or not paleosurface features...condensate Opal/chalcedony, alunite, kaolinite, smectite H2S-bearing steam condensate Opal/chalcedony...Opal/chalcedony H2S-bearing steam and SO2- Opal, cristobalite and HCl-bearing magmatic condensates Neutral-pH chloride...Neutral-pH chloride water Opal/chalcedony Calcite, aragonite Opal/chalcedony Opal/chalcedony Taken from...alteration peripheral to the La Coipa HS-IS gold-silver district, Chile. f Hydrothermal breccia, generated by shallow-seated |  | | Report (issue) | | MINERALS OF CALIFORNIA BULLETIN No STATE ; . .. : DlViSIi BUILDIN 113 COLLEGE OF AGRICULTURE...AGRICULTURE DAVIS, CALIFORNIA STATE OF CAUFORNIA DEPABTMENT OF NATURAL RESOURCES GEORGE D. NORDENHOLT, Director...MINERALS OF CALIFORNIA By ADOLF PABST Associate Professor of Mineralogy University of California BERKELEY...BERKELEY CALIFORNIA STATE PRINTING OFFICE GEORGE H. MOORE. State Printer SACRAMENTO. 51440 1938 TABLE...Letter of Transmittal 5 Map 6 Outline o['. California Preface 7 Introduction 11 Native Elements |  | | Journal (article/letter/editorial) | | Engineering, Colorado School of Mines, Golden, CO 80401, USA SEAES and Williamson Research Centre for Molecular...the western (South Dakota) and southern (Alabama) USA were investigated. Measured quartz contents of bentonites...montmorillonite and opaline silica. Opaline silica (opal-A and opal-CT) occurs in two texturally distinct generations:...montmorillonite coatings, but may show sparse distributions of opal-CT lepispheres. HRTEM has not confirmed a topotactic...1990); adsorbed kaolinite (Le Bouffant et al., 1977; Wallace et al., 1985), possibly because it is a source |  | | Report (issue) | | M^iajKaMVMtrVMMIMMVW^- 'Vv s > MINERALS Of CALIFORNIA BULl,ETIN N«, 91 issei0 BY rr: ^ ;wIFORNIA...BULLETIN [November, 1922 No. 91 Minerals of California $ BY ARTHUR S. EAKLE, Ph. D. Professor...Mineralogy, University of California COMPLIMENTS OF ^^^foyd Sc, c/iosty GIST CALIFORNIA STATE PRINTING OFFICE...Stephens, Governor of the State of California, Sacramento, California Sir: I have the honor to transmit...upon the minerals of California. This bulletin records our knowledge of California minerals to date, |  | | Journal (article/letter/editorial) | | Mail Stop 901, 345 Middlefield Road, Menlo Park, California 94025 Abstract Numerous important Miocene and...S ie GREAT BASIN rra NNR Utah Ne da va California 10 Ma SA Colorado Plateau Arizona F 20 Ma...in the Atlanta, Fairview, Tuscarora, and Wonder mining districts that are hosted by late Eocene to early...Wonder, WM = Wind Mountain, Z = Zaca (Monitor district). DE 36°N High-sulfidation deposits 100 km...G ol Miogeocline Roberts Mtns. Allochthon CALIFORNIA g O og Or Sri<.706 Eastern Limit of t l |  | | Journal (issue) | | Cover.indd 1 19/04/2013 1:29 PM Master jeweler Wallace Chan’s ‘Eyes of Infinity’ parure composed of a...50 52 38 58 60 62 64 66 Industry News Kagem Mining in Zambia Plans to Double Production in Coming...Sylvia Ye sylvia.ye@gemstone.org InColor Bureau USA Claudiu Margarit claudiu@gemstone.org [1] (212) 620-0900...designer Anna Hu at the Louvre Museum in Paris or Wallace Chan exhibiting alongside the most famous names...Kagem Mining in Zambia Plans to Double Production in Coming Five Years Gemfields’ Kagem Mine. K agem |  | | Journal (article/letter/editorial) | | Correlations at Buckskin Mountain, National District, Humboldt County, Nevada PETER G. VIKRE† U.S. Geological...Buckskin Mountain (elev 2,650 m, 8,743 ft), Humboldt County, Nevada, a hydrothermal system, imposed on a middle...partially leached epiclastic deposits and rhyolite by opal-A marks the termination of the two hydrothermal...conduits in rhyolite and initially crystallized as opal and chalcedony. The low thermal conductivity of...AT BUCKSKIN MOUNTAIN in the National district, Humboldt County, Nevada, altered and mineralized volcanic |  | | Report (issue) | | SSth Annual Report MINING INDUSTRY OF IDAHO for 1953 GEORGE A. McDOWELL EDWARD - - - Inspector of...OWENSBY - - - = - _ Secretary , 95th Annual MINING Report INDUSTRY OF IDAHO for 1953 ] ' i GEORGE...Safety in the Idaho Metal Mining Injury Operations Record for Mining Accidents;-Description: ofe...ofe hatalicess Idaho Mining Association, ‘Speechby: Warten Industry ee Declaration .7 Cassidyn oe...eee The Hidden Payroll in the Coeur d’Alene Mining District, by Waals Simmons? and sMalcolm |  | | Journal (volume) | | STATE OF CALIFORNIA. DEPARTMENT OF NATURAL RESOURCES GEORGE D. NORDENHOLT, Director DIVISION OF MINES...BRADLEY State Mineralogist JANUARY, 1936 No. CALIFORNIA JOURNAL OF MINES AND GEOLOGY QUARTERLY CHAPTER...FERRY RUILDING, SAN FRANCISCO CALIFORNIA 0373 LIBRARY UNIVERSITY OP< CALIFORNIA DAVIS 1 DIVISION OF MINES...Logan, District Mining Engineer McK. Laizure, District W. Burling Tucker, Reid J. Mining Engineer...Engineer District Sampson, Assistant Mining Engineer District Engineer Chas. V. Averill, District Mining |  | Saunders, J. A., Unger, D. L., Kamenov, G. D., Fayek, M., Hames, W. E., Utterback, W. C. (2008) Genesis of Middle Miocene Yellowstone hotspot-related bonanza epithermal Au–Ag deposits, Northern Great Basin, USA. Mineralium Deposita, 43 (7) 715-734 doi:10.1007/s00126-008-0201-7 | Journal (article/letter/editorial) | | epithermal Au–Ag deposits, Northern Great Basin, USA J. A. Saunders & D. L. Unger & G. D. Kamenov & M...Auburn University, 210 Petrie Hall, Auburn, AL 36849, USA e-mail: saundja@auburn.edu G. D. Kamenov Department...FL 32611, USA M. Fayek Department of Geological Sciences, University of Manitoba, 240 Wallace Bldg., Winnipeg...89445, USA Present address: D. L. Unger Victoria Resources, 240 S. Rock Blvd., Reno, NV 89502, USA textures...true for the similar deposits in the Silver City district of the Owyhee Mountains in Idaho, which are located |  | | Journal (article/letter/editorial) | | when a new pocket was broken into in the Mammoth Mine, Tiger, (Pinal Company), Arizona." ARKANSAS — Another...iron oxide, and a small amount of stibnite." CALIFORNIA — A large greenishwhite mass of jadeite, not...cut in weathered serpentine near San Andreas, Calaveras Co., Calif. COLORADO — Nice chocolate-brown xled...xled cyrtolite was found last year in the Pine District, Jefferson Co., Colo., so we were informed by...locality in the State is Russell Gulch in Gilpen County. A small but very fine crystal group from Russell |  | | Journal (article/letter/editorial) | | specimens, are either inaccessible or are in closed mining districts, or are closed for political reasons...City-D~Lamar Mining Dlstricts / J\. I,' -r-, - L..... ~ rl.. kl \ , 50 I 100 I Miles old mining and...scientific significance. In this index, the better known mining districts that have produced many high-quality...across, on blue thomsonite. Lucky Peak Dam, Ada County; Lanny Ream specimen and photo. Figure 3 (below)...cut near Pinehurst, Adams County; Lanny Ream specimen and photo. Ada County Lucky Peak Dam, on east side |  | | Show/Event (guide) | | group, 13 cm, from the Eagle’s Nest mine. Placer County, California. Found in 1988. Collection of Wayne...well-designed historical mining gallery including a reconstructed mine tunnel and many old mining artifacts, photos...hundred miles to the south, but the historic old mining town of Bisbee is a prime Arizona attraction. The...special interests. Try the Western Postal Queen Mine Tour While in Bisbee, adventurous visitors of all...Other Attractions 3 tour of Bisbee’s famous Queen Mine. Tours are given 7 days a week. Call 432-2071 for |  | | Report (issue) | | Winnemucca District and Surprise Resource Area, Northwest Nevada and Northeast California: Resources...shown is the location of the Champion dumortierite mine 23 Figure 5. Location of known mines, prospects...mines, prospects, and occurrences of gems (chiefly opal) in the WSRA. Information from MRDS and MILS databases...been produced for many years in the Winnemucca District, and to a lesser extent in the Surprise Resource...increases in northwestern Nevada and adjacent California. Development of new mines is most likely within |  | Burt, Donald M., Sheridan, Michael F., Bikun, James V., Christiansen, Eric H. (1982) Topaz rhyolites; distribution, origin, and significance for exploration. Economic Geology, 77 (8) 1818-1836 doi:10.2113/gsecongeo.77.8.1818 | Journal (article/letter/editorial) | | topazwasfirst laterbecomethe Climaxmolybdenummine (Wallace recognizedin 1859.Exactly100 yearsafterward,in...beryllium depositswere discoveredin this same district (Shawe, 1968). Since these early discoveries,Cenozoic...exploOn a local scale, as in the Spor Mountain district, sively, unlessassistedby interactionswith ground...Fe-Mnoxides; topaz,garnet, sanidine, quartz,Fe oxides, opal,calcite;on marginof Cross,1886; Epis and Chapin...garnet,beryl, fluorite,Fe oxides,quartz, sanidine,opal; contemporaneous with traehyandesitelavas(60% SiOn);SiO2= |  | | Journal (article/letter/editorial) | | Denver Federal Center, Denver, Colorado 80225, USA ABSTRACT ASTER (Advanced Spaceborne Thermal Emission...metallic and industrial minerals (Hofstra and Wallace, 2006). Because hydrothermal silicification accompanies...more sensitive at detecting hydrous quartz (e.g., opal and chalcedony) and differentiating carbonate mineral...and Bald Mountain gold districts in White Pine County (Nutt, 2000; Nutt and Hart, 2004). These districts...Chaotic unit (Tch), Water Canyon, Bald Mountain district Quartz-bearing lithologies: jasperoid in Joana |  | | Report (volume) | | High Rock Lake Wilderness Study Area, Humboldt County, Nevada U.S. GEOLOGICAL SURVEY BULLETIN 1707-A...High Rock Lake Wilderness Study Area, Humboldt County, Nevada By DONALD C. NOBLE, DONALD PLOUFF, and...High Rock Lake Wilderness Study Area, Humboldt County, Nevada. U.S. Geological Survey Bulletin 1707-A...Lake Wilderness Study Area (NV-020-007), Humboldt County, Nevada. CONTENTS Summary Al Abstract 1 Character...High Rock Lake Wilderness Study Area, Humboldt County Nevada A2 Map showing mineral resource potential |  | | Book | | volume is dedicated is four-fold: (1) To locate by mine, deposit, or community those mineralized areas of...to travel extensively from Maine to Southern California, and from Washington’s Pacific Shores to Key...Co. Hematite CALERA, Shelby Co. Wavkllite CLAY COUNTY, Sec. 24. T. 19 S R., 7 E. STATUARY, Coosa Co...Co., (W. border of* Marble Crystalline TALLADEGA COUNTY Marble, (crystalline) VALLEY HEAD, DeKalb Co. Hematite...VILLAGE SPRINGS, Blount Co. Hematite WOODS COPPER MINE, Cloaburne Co. Sphalerite ARIZONA COVEI.I.ITE |
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