 | | Journal (article/letter/editorial) | | Deposits,Ely, Nevada L^UI•F.NCV.P. J^•Es Abstract The porphyry copperdepositsnear Ely, Nevada, occur within...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...porphyrycopperdepositsin the Robinson unoxidizedareas of the operatingmines at a scale mining districtnear Ely, |  | | 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.... Unalteredmonzoniteis characterized by large orthoclase phenocrysts with smallerphenocrysts of plagioclase...plagioclase and hornblende in a matrix of orthoclase and quartz. Biotiteis rarelypresentas a primaryconstituent |  | | 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...garnetskarnunaffected.At thistime an extensive zoneof biotite-orthoclase alterationformedin early porphyryand in the directly |  | | 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 |  | | 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 ................................... |  | | 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 |  | | 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) | | 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) | | 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 |  | | 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----------------------------·-·---------------- |  | | 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...•uar•z I•i INNER SlightlyAugmented Augmented Orthoclase- Microcline Dustedwithtracesericite AlterationK-sparwith |  | | Journal (article/letter/editorial) | | datesfor major igneousrock typesin the Binghammining district, Utah, range from 39 to 32 m.y. and suggestthat:............................ 612 612 Summaryof district geology .................... Ore deposits.......56 to 72 m.y. for unalteredintrusiverocksin six mining districts. Thesedatesare thoughtto provide"apparent...ar. We rocksat the Chino, New Mexico, and Ely, Nevada, believe that Bingham shouldnot be consideredan...trusiveson the northernslopesof ButterfieldCanyon district,Mexico,Ohmotoand others(1966) used are porphyriticaphanites |  | | 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 |  | | Report (issue) | | example, Christmas, Arizona, and Battle Mountain, Nevada), more copper is recovered from calc-silicate rocks...which will vary with the price of copper and local mining costs. At Dos Pobres, Arizona, from the top of...the date of a study, considering the extent of mining at that date. At Batu Hijau, Indonesia, Arif and...evolution of ore fluids in the Yerington, Nevada, porphyry copper district and concluded that an aqueous fluid...intermediate to silicic stocks (SiO2 >56 wt percent). White (2004) suggested that porphyry copper deposits in |  | | Journal (article/letter/editorial) | | related to the Jurassic Yerington batholith in Nevada, and associated with the Yerington mine and the..., 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...examples of root zones are in the Yerington district, Nevada (Figs. 1, 2A, B, 3A,B), where several Jurassic |  | | 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 (volume) | | ae TONITE TN263. Au. =American Institute of Mining, Metallurgical, V.2 and Petroleum Engineers Ore...Inst! itute i an Americ ie Lye 2 of llurgical, Mining, Meta m Engineers and Petroleu © f the Ore deposiits...1 MAR 06 200 MAR 2 ¥ 2001 | NEVADA STATE LIBRARY CARSON CITY, NEVADA Digitized by the Internet Archive...AND ZINC (1936) 134, MILLING METHODs 141, METAL MINING (1939) (1937-40) BLAST FURNACE, COKE OVEN AND...AIME TRANSACTIONS VOLUME 178, MINING GEOLOGY AIME TRANSACTIONS 181, MINING, INDUSTRIAL MINERALS, EDUCATION |  | | 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) | | 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 |  | | Report (issue) | | Basin structure Structure in the San Francisco district Geology Sedimentary rocks Geologic periods represented...relations Morehouse (?) quartzite (Silurian?) of Star district Distribution General character Conditions of deposition...Quartz monzonite of the Rocky district Quartz monzonite of the Star district Comparison of analyses Dike...82 San Francisco district 82 Beaver Lake district 86 Rocky district 87 Star district 88 Comparison of...Hydrous carbonateq Malachite Azurite 1 Silicates Orthoclase Plagioclase Diopside Augite Wollastonite Tremolite |  | | 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 |  | | Journal (article/letter/editorial) | | Rita porphyry copper deposit in the Central Mining District of southwestern New Mexico approximately 150...outlining the general geology, salient features of the district, and which provide a background for the problem...(1950); Kerr (1951). Early descriptions of other mining districts, especially Lindgren (1905); Ransome...Mexico (Barton, 1929, I/ 500,000), the Central Mining District corresponds roughly to a triangular area of...and which also carries large, pink, poikilitic orthoclase phenocrysts. The younger dikes are outlined |  | | Journal (article/letter/editorial) | | Zone of the min- from as deepas 10,000ft or more (White, 1967). •eralizeddistrictwhere abnormallylow Oxs/O•øratios...alterationtypes recognizedare: 1966). (1) quartz-orthoclase-biotite alteration (2) quartz-sericite alteration...occur with no evidencefor supergeneleaching. Orthoclase is as (a) alteration products after feldspar...8.1 B-3 M•S Bingham, Utah -4500 B-3-1 Ely,Nevada EH-I EH-2 E-4 E-7-1 M M H •I•0o -78 i I (2)...-104 -101 M -97 - 110 E-B-I M> K New Boston, Nevada NB- 1 M •' K Butte, Montana 1610 6415-4 -93 |  | | Report (issue) | | Geology and Ore Deposits of the Bagdad Area Yavapai County Arizona GEOLOGICAL SURVEY PROFESSIONAL PAPER 278... Geology and Ore Deposits of the Bagdad Area Yavapai County Arizona By C. A. ANDERSON, E. A. SCHOLZ, and J...Faults younger than the Lawler Peak granite _ _ White Spring fault______________________ Mountain Spring...___________________ Biotite-albite-quartz-orthoclase facies_ Quartz-orthoclase-sericite facies_ ______ Hypogene... miiie-_-----_------------_----------Future of mining in the area.______________-_____---Literature |  | | Report (volume) | | Arizona__________________________ 208 Note on the Bisbee district, Arizona, by F. L. Ransome_ 209 Globe and Miami...Morenci, Arizona. _________________ ___ 217 Ely, Nevada, by A. C. Spencer_________________ 219 Santa Rita...Mexico____________________ 22J Burro Mountain district, New Mexico_____________ 222 , Cananea, Mexico... Utah, by B. S. Butler_________ 229 Yerington, Nevada _______________1________ 231 Jerome, Arizona, by...__ 233 Shasta County, California______ _ __ 234 Snowstorm lode, Coeur d'Alene district, Idaho__ _ 235 |
|
