 | | Journal (article/letter/editorial) | | Deposits,Ely, Nevada L^UI•F.NCV.P. J^•Es Abstract The porphyry copperdepositsnear Ely, Nevada, occur within...calc-silicatesand are rimmed by quartz, calcite, magnetite, and either actinolite or a nontronite clay of...origin(Nielsen, 488 PORPHYRYCOPPERDEPOSITS,ELY, NEVADA 489 Present Work available. Sedimentaryunitsare...for miles beyondthe ore deField work in the Robinson district was carried posit and its alteration aureole...aid in explorationfor madethroughall areasof the district, but the major concealeddeposits. effort consistedof |  | | Report (issue) | | Gold in the Bingham District, Utah By EDWIN W. TOOKER Gold in the Butte District, Montana By EDWIN W...TOOKER Gold in the Ely (Robinson) Copper District, White Pine County, Nevada By LAURENCE P.JAMES The...Tomboy-Minnie Gold Deposits at Copper Canyon, Lander County, Nevada By TED G. THEODORE, STEPHEN S. HOWE, and DAVID...Gold in the Bingham District, Utah / by Edwin W. looker Gold in the Butte District, Montana / by Edwin...looker Gold in the Ely (Robinson) Copper District, White Pine County, Nevada / by Laurence P. James The |  | | Journal (article/letter/editorial) | | INTRUSION ROBINSON AND MINING FRED W. McDOWELL* ORE DEPOSITION DISTRICT OF IN THE NEVADA AND J...LAURENCE KULP** ABSTRACT The RobinsonMining District of Nevada is a classicexampleof hydrothermal copper...disseminated copperdepositof the RobinsonMining District near Ely, Nevada,is well suitedfor this type of study....distributionof altered and unalteredmonzonitein the district as mappedby Bauer (1). Actuallytwo hydrothermal...biotiteargillicstagehornblende altersto an aggregate of biotite,magnetite and quartzkviththe biotitebecoming betterdeveloped |  | | Journal (article/letter/editorial) | | Mineralizationin the Ruth PorphyryCopperDeposit near Ely, Nevada GERHARD WESTRA Exxon'Minerals Company, 2425NorthHuachuca...Ruth-RuthExtension porphyrycopperdepositin the Robinson miningdistrict,east centralNevada,represents the...pophyses of a largerpluton that underlies the district. Prior to intrusionthe sedimentaryrockswere folded...sulfide-richgarnet-pyroxene skarnselsewherein the district,the predominantskarntype at Ruth is a massivegarnetskarnlow...alongfractures. At the Ely-Chainmancontactthereis a magnetite-rich zonewhichalsocontains pyrite,pyrrhotite,and |  | | Report (issue) | | Paper· 96 THE GEOijOGY AND ORE DEPOSITS OF ELY, NEVADA BY .. ARTHUR C. SPENCER WASHINGTON GOVERNMENT............................. . Situation of the district ......................................................................... . Geology of eastern Nevada ....................... .'..... ·~ .................................... General geology of the district ................................................. , ......................·................. . Nevada lin1estone ................................... |  | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA Peer Hen By CASTOR oan eGORY.C.oFER DOCK NEVADA AND BUREAU... UNIVERSITY Reno & Las Vegas OF NEVADA PRESS GEOLOGY Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright © 2004 by University of Nevada Press Photographs...Weissman, and Sugar White copyright © 2004 unless otherwise noted Map of Mining Districts and significant...significant mineral occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved Manufactured |  | | Report (issue) | | 1987 INTRODUCTION A significant proportion of mining industry's interest in the last few years has been...Battle Mountain Gold Company's Fortitude deposit, Nevada and Experanza Exploration's Red Dome deposit, Queensland...Columbia; Salsigne, France; Pamlico, Nevada; Red Cloud, Nevada; Island Copper, British Columbia; Ban...others. Although the Mt. Biggenden, Austrialia magnetite-bismuth-gold skarn is classified as a Au-skarn...extracted. In 1917, Dunstan (1969) calculated magnetite ore reserves as 500,000 tons, which apparently | | | Report (issue) | | MINERALS OF NEVADA MINERALS OF NEVADA STEPHEN B. CASTOR and G R EGOR Y C . F E R D OC K l NEVADA BUREAU...association with the UNIVERSITY OF NEVADA PRESS Reno & Las Vegas Nevada Bureau of Mines and Geology Special...University of Nevada Press, Reno, Nevada 89557 USA Copyright© 2004 by Uni versity of Nevada Press Photographs...Scovil, Storm Sears, Jeffrey Weissman, and Sugar White copyright © 2004 unless o therwise noted Map of...Districts and si gnificant minernl occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved |  | | Journal (article/letter/editorial) | | SYNGENETIC ROBERT NEAR EXPOSED ELY, IN THE NEVADA. FORMATION • O. FOURNIER CONTENTS PAGE Abstract............... Igneous rock relationshipsin the district ................................. Sedimentaryrocks...stocklikebodiesare found in the northernand easternparts of the district. They are generallyunalteredand barren. In general...by company geologists whostartedworkin the Ely district afterI hadcompleted thefieldworkfor thepresent...Wall-rockalteration in the Westernportion of the Robinson Miningdistrict,Kimberly,Nevada:p. 23, Master'sThesis |  | Orris, G.J., Bennett, P.C., Theodore, T.G. (1987) A bibliography for the Winnemucca 1 degree by 2 degrees Quadrangle, Nevada, with indexing by county, commodity, mine name, mining district and selected major topics. Open-File Report Vol. 1987 (87-89) US Geological Survey doi:10.3133/ofr8789 | Report (issue) | | 2° quadrangle, Nevada, with indexing by county, commodity, mine name, mining district, and selected major...resources of the Winnemucca 1° x 2° quadrangle area, Nevada, were collected in support of a series of U.S....occur within the Winnemucca 1° by 2° quadrangle, Nevada: Elko, Eureka, Humboldt, Lander, and Pershing Counties...Table 3 is a listing of references by mine and mining district names. Finally, Table 4 indexes the references...for the five Nevada Counties that occur in the Winnemucca 1° by 2° quadrangle, Nevada. COUNTY REFERENCES |  | | Book | | Editors. SPENCER . . R. TirLey has worked as a mining geologist in the western United States in both...where no maps were available. In southern Yuma County he even discovered and named a whole new range...specific mention are the mapping in southern Yuma County, studies on gold lode and placer deposits, work...Range Province, and work on a number of individual mining districts and on numerous mineral commodities....establish Tucson, Arizona, as the hub of the copper mining industry of the United States. In fact, an inscribed |  | | Report (issue) | | wu OUTLINE OF NEVADA MINING HISTORY— Joseph V: Tingley a RobertC.Horton _ Francis C. Lincoln 3 . ...Publication of this new edition of “Outline of Nevada Mining History” was made — possible with the assistance...eh aa nearly 48 million acres of public land in Nevada. Most of the minerals, _ _ geothermal energy, and...ahij 4 = Wh A a ‘ a a y 4 Pte Es in Nevada comes from publicland. First edition, first printing...Leshendok, U.S. Bureau of Land Management Eric Moody, Nevada Historical Society é Jon Price, National Research |  | | Report (issue) | | Plutonic Rocks in the Battle Mountain Mining District, Lander County, Nevada GEOLOGICAL SURVEY PROFESSIONAL...Plutonic Rocks in the Battle Mountain Mining District, Lander County, Nevada ByTED G. THEODORE, MILES L. SILBERMAN...COPPER ENVIRONMENT IN THE BATTLE MOUNTAIN MINING DISTRICT, NEVADA GEOLOGICAL SURVEY PROFESSIONAL PAPER...-1 General geology of the Battle Mountain mining district -----------------------·------------------...ILLUSTRATIONS Page FIGURE 1. Index map of north-central Nevada----------------------------·-·---------------- |  | | Report (volume) | | sections of Au-skarn deposits in north-central Nevada 8 Map showing distribution of Au-skarn districts...zoned garnets from oxidized skarn, Surprise Mine, Nevada 16 Ternary diagrams showing ranges of garnet compositions...five Au-bearing skarn systems in north-central Nevada 16 Ternary diagrams showing ranges of pyroxene...three Au-bearing skarn systems in north-central Nevada 17 Photomicrograph showing massive garnet partly...north-central Nevada 59 · Representative data for minerals in gold skarns from north-central Nevada 60 Chemical |  | | Report (issue) | | NevadaiGity —'Grass: Valley) iter ore ae ee Shasta County a eee cere asses ee avs Oe ee COlOTAMGS ee Pie...possible to designate the individual mines of which a district is composed but rather that the geological conditions...conditions from one mine to another within the district are so generally the same that what is said of...Canadian Institute of Mining*and| Metallurgye a. 12ers ee ett elt hanes Engineering and Mining Journal.........Features (Book)....................+-4..-Canadian: Mining Journal ssi elora fs aeent-< sia tac nes etare |  | | Journal (article/letter/editorial) | | Kalamazooportionof the San Manuel-Kalamazoo district,Pinal County,Arizona, has presentedan unparalleledopportunityfor...drilling(Lowell,1968) of the Kalamazoo portionof the district and in exploitationof the San Manuel portion....water undersaturated melt, and the White model of multilevel White (1968) in a particularlystimulatingpaper...centerof the orebodyis 1968), located in Pinal County, Arizona, is here poorlymetallized, so that ore...Hornblen_d..e.._. Ep,car,mont,chlor(2 types) .... Magnetite A-K-C-F Chloritized,+ leucoxene, qtz Chlaritized |  | | Report (issue) | | Zi oe Mountatn ~Pass) cs. sim ssicwiy tat.0e 276 Nevada City-Grass Valley ..... 279 New Almad@n 6.6sravs...no OIL ORO OIG ZoZ 292 Boulder County Tellurides .... 294 Boulder County Tungsten ...... eeoeeesee 296...323 A. Rifle area, Colorado «0s... 323 B. Uravan District, Colorado 324 Cope tick Rock DIsEEIcL sCoLoradO)...324 DeeGkante District, New sMext Comer. clecetsls cused cists! 0/0 326 E. Shiprock District, Utah—Arizona...Utah—Arizona ....vccccsnens F. Monticello-Moab-Thompsons District, Utah .....secvceee 326 327 ee eeseeee Gig GE |  | | Journal (article/letter/editorial) | | 1543 1544 1545 1545 1546 1546 The Tintic mining district, Utah .......................................Mountain (Bingham) district, Utah ....................... The Robinsonmining district, Nevada ........................... The Whitehorse Pass area, eastern Nevada ......................... Data analysis .........Cottonwood,and Iron Springs mining districts in Utah, and from the Robinson mining district and the Whitehorse...Whitehorse Pass area in Nevada. A spectrochemical precisionof _ 12% was obtainedusing an internal standard of |  | | Journal (article/letter/editorial) | | are reported for primary biotite, amphibole, magnetite, pyroxene, ilmenite, sphene and secondary biotite...Tombstone, in Arizona; Bingham and Alta, Utah; Ely, Nevada; and Brenda, British Columbia. Amphiboles from...non-incorporation into amphibole, biotite and magnetite during magmatic crystallization or the early hydrothermal...1956 Koski and Cook 1982 McDowell and Kulp 1967 White et al. 1968 Koski and Cook 1982 Westra 1979, 1982...sericitization. Sampling strategy In this study the mining districts examined include the Christmas, Globe-Miami |  | | Journal (article/letter/editorial) | | related to the Jurassic Yerington batholith in Nevada, and associated with the Yerington mine and the...potassic alteration assemblages with bornite ± magnetite in certain porphyry copper deposits, whereas in..., Yerington and AnnMason in the Yerington district, Nevada: Dilles et al., 2000; Sierrita-Esperanza:...of porphyry copper deposits, with the Yerington district labeled (modified from Seedorff, 1991; Dickinson...certain districts, such as the Robinson (Ely, Ruth) district in eastern Nevada, a large body of granite or |  | | Report (issue) | | example, Christmas, Arizona, and Battle Mountain, Nevada), more copper is recovered from calc-silicate rocks...tellurides and arsenides in an assemblage of magnetite, chalcopyrite, and bornite in the porphyry deposit...which will vary with the price of copper and local mining costs. At Dos Pobres, Arizona, from the top of...phyllic 6 alteration-related magnetite destruction and late-stage magnetite formation (Gettings, 2005)...the date of a study, considering the extent of mining at that date. At Batu Hijau, Indonesia, Arif and |  | | Report (volume) | | vols. 15, 16. Tulsa, Okla. American Institute of Mining and Metallurgical Engineers: General volume, 1931;... 102; Technical Publications 386-492. See also Mining and Metallurgy. New York. American Journal of Science...Resources, Division of Mines and Mining: Bulletin, nos. 98, 105-107; Mining in California, vols. 27, 28....Canadian Institute of Mining and Metallurgy; Transactions,vols. 33,34; Canadian Mining and Metallurgical...Bulletin, nos. 225-248. Montreal, Quebec. Canadian Mining Journal, vols. 52, 53. Gardenvale, Quebec. Carnegie |  | | Report (issue) | | By WALTER HARVEY WEED. INTRODUCTION. Copper mining in the United States has had a marvelously rapid...550,000 700, 000 10,000 814,035,719 "Salt Lake Mining Review, Annual Review number, January, 1906. The...Min. Jour., April 28, 1906; Stevens, Horace J., Mining World, Jan. 27, 1905; and information furnished...is shown in PI. III. The Butte, Mont., copper district is the greatest silver-producing camp of the entire...the minimum. The most striking feature of copper mining in the last two years is the complete success of |  | | Report (issue) | | limestone or dolomite. It is a useful ore guide in many mining districts UNITED STATES GOVERNMENT PRINTING OFFICE........... Characteristics of jasperoid in major mining districts of the United States ..................................................... Tri-State district, Oklahoma, Kansas, and Missouri ................Clifton-Morenci district, Arizona .............................. Bisbee (Warren) district, Arizona ............. Ely (Robinson) district, Nevada .............................. Leadville district, Colorado . |  | | Book | | Bagby US Geological Survey, Menlo Park, California, USA William Bagby received a Ph.D. in Earth Science from...rocks in the Sierra Madre Occidental, Mexico. His mining industry experience includes porphyry copper exploration...at the USGS has been focused on gold deposits in Nevada and a mineral-resource assessment of Costa Rica...Berger US Geological Survey, Spokane, Washington, USA Byron Berger has been involved in exploration for...experience focused on Carlin- type deposits in northern Nevada, and during his tenure with the USGS he has conducted |
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