 | | Report (issue) | | deposit. Table 4, part B, gives an alphabetic list of mine and properties followed by the deposit name. CHARACTERISTICS...fissure fillings, i.e., deposits in the Sierra Nevada, California (Clark, 1970); Klamath Mountains, California-Oregon...ore is associated with some veins in the Sierra Nevada and was locally worked with the vein deposits (Clark...deposits used in Table 1 may represent a major mine, district name, or local town name or other prominent...been reported in just a single mine in the East Belt of the Sierra Nevada foothills (Knopf, 1929). Newhouse |  | | Journal (article/letter/editorial) | | has been an important industry in the economy of Nevada, the Silver State, since territorial times (1861)...area and created the state (1864). There are 526 mining districts in the state, 60 of which produce nonmetallic...ores (Tingley 1998). Three major mining booms have occurred in Nevada: 1860-1880 (Comstock and other silver...October 2014 deposits), 1900-1920 (Tonopah and Goldfield), and 1980 to the present (Carlintype deposits...precious-metal mining with the development of low-grade, large-tonnage mines. I n 1997 Nevada ranked first |  | | Report (issue) | | 10.263–10.38 Z=2 X-ray Powder Pattern: Goldfield, Nevada, USA. (ICDD 29-531). 2.97 (100), 1.819 (60)...(Te3.23 As1.13 Sb0.03 )Σ=4.39 S12.75 . (2) Goldfield, Nevada, USA; by electron microprobe, corresponds to...As1.13 Sb0.93 )Σ=3.87 S13.84 . (3) Tramway mine, Montana, USA; by electron microprobe, corresponds to Cu11...Association: Marcasite, famatinite, tennantite, hessite, petzite, sylvanite, altaite, chalcostibite, emplectite...sphalerite. Distribution: In the USA, in Nevada, from Goldfield, Esmeralda Co., in the Mohawk [TL] and Claremont |  | | Journal (article/letter/editorial) | | 23:14 19 October 2014 Vindicator Mine, Cripple Creek, Teller County, Colorado I n terms of sheer volume...globe, they have striking similarities in their mining history and mineralogy, but their geology is seemingly...ROCKS & MINERALS the Golden Circle mine at Sorrento and the Cline mine at Hancock, Maine, and from a vaguely...vaguely described locality near Monroe, Fairfield County, Connecticut. A compilation of telluride mineral...Consolidated mine at Dahlonega, Lumpkin County, Georgia; the Barite Hill gold mine in McCormick County, South |  | | 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...otherwise noted Map of Mining Districts and significant mineral occurrences of Nevada by Nevada Bureau of Mines...Cataloging-in-Publication Data Castor, Stephen B, Minerals of Nevada / Stephen B. Castor and Gregory C. Ferdock.— Ist | | | 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...Districts and si gnificant minernl occurrences of Nevada by Nevada Bureau of Mines and Geology All rights reserved...-Publ ication Dat,i Castor, Stephen B. Minerals of Nevada/ Stephen B. Castor and Gregory C. Ferdock.- rst |  | | Journal (article/letter/editorial) | | Summary Arsenian goldfieldite from the Marian Gold Mine, Philippines, which is hosted by the Cordon Syenite...tennantite, in contrast to goldfieldite from Goldfield (Nevada), Kamchatka and Uzbekistan, which are Zn-poor...steht damit in Gegensatz zu Goldfieldit von Goldfield (Nevada), Kamtschatka und Uzbekistan, welche Zn-arm...investigated ores from the M o h a w k Mine, Goldfield, Nevada. An analysis by Palmer, published in Ransome... / I b-'\\,7/ ,j _/ t't l/ \ / M ar ia, Gold Mine / t S c. [ { ~ / //"'~- ,J/ ~// , /"// |  | | Journal (article/letter/editorial) | | Golden Mile Fault over a strike of 8 km within a district-scale zone marked by porphyry dykes and chloritic...rich in silver (Au/Ag00.12–0.35) due to abundant hessite. We describe another array of silver-rich D2 shear...the Golden Mile Fault exposed on the Mt Charlotte mine 22 level. They are filled Editorial handling: B...scheelite, pyrite, native gold (830–854 fine), hessite, and minor pyrrhotite, altaite, bournonite, and...and boulangerite. Assuming 250–300 °C, gold–hessite compositions indicate a fluid log fTe2 of −11.5 to |  | | Journal (article/letter/editorial) | | Photographs JanuaryFebruary: Rhodochrosite, N’Chwaning mine, Hotazel, South Africa. Martin Zinn specimens, Erica...Cryo-Genie mine, San Diego County, California. Natural History Museum of Los Angeles County specimen,...Ground Hog mine, Gilman, Eagle County, Colorado. Natural History Museum of Los Angeles County specimen...309 Brochantite, New Hampshire, 416 Brookite, Dodo Mine, Subpolar Urals, Russia, R. B. Cook, 192-95 Buchholz...from the Carletonville Gold Mines, Witwatersrand Goldfield, South Africa, 390-99 Calcite, Colorado, 309; |  | | Journal (article/letter/editorial) | | metamorphicrocks which accompanies this paper, severalin• Mining engineerand geologist,IO4 John Street, New York...pegmatiteand Lindgren2 a vein. In the early days of mining geology, the great distanceto which impregnationand...concentrates. The siliceousores of the Ragged Top District in the Black Hills carryingfrom $•oo to $200 in...the state of Colorado, Rickard says: "Profitable mining for gold and silver has been performedin formationsbelongingto...known in Chile, Peru, Colombia, Mexico, California, Nevada, Utah, Colorado,Idaho, Unga Island, Unalaska, Japan |  | | Journal (article/letter/editorial) | | 31 December 2014 NEVADA MINERAL STEVEN PULLMAN 1755 Circle Drive NW Reno, Nevada 89509 RICHARD THOMSSEN...THOMSSEN P.O. Box 1656 Carson City, Nevada 89702 Map showing Nevada counties, by William W.Besse. N evada...minerals new to the state being identified every year. Nevada is one of the few western states without a published...Clark County. Walt Lombard0 specimen, Jeff Scovil photo. Churchill County Chalk Mountain District Chalk...Chalk Mountain mine: calcite, cerussite, chlorargyrite, descloizite, galena, hemimorphite, leadhillite, |  | Christie, A. B., Simpson, M. P., Brathwaite, R. L., Mauk, J. L., Simmons, S. F. (2007) Epithermal Au-Ag and Related Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand. Economic Geology, 102 (5) 785-816 doi:10.2113/gsecongeo.102.5.785 | Journal (article/letter/editorial) | | Epithermal Au-Ag and Related Deposits of the Hauraki Goldfield, Coromandel Volcanic Zone, New Zealand ANTHONY...Epithermal Au-Ag vein deposits of the Hauraki goldfield in the Coromandel volcanic zone, New Zealand,...represents only 61 percent of the rocks exposed in the goldfield. The deposits consist of quartz ± calcite vein...andesite and dacite in the northern portion of the goldfield, but some of these are bonanza-grade veins that...formed in andesite and dacite in the southern goldfield at 7 to 6 Ma, and these contributed most of the |  | | Journal (article/letter/editorial) | | zite Coloradoite-gold Sylvanite-hessite Petzite-sylvanite-hessite It shouldbe emphasizedthat certain...Tellurium-sylvanite Calaverite-gold Empressite-hessite Hessite-silver Instead,one wouldexpectto find the...Sylvanite-petzite Sylvanite-hessite Sylvanite-empressite Petzite-hessite Gold-hessite Gold-petzite The close...Sylvanite•petzite Sylvanite--empressite Sylvanite•hessite Coloradoite•gold--petzite Coloradoite•calaverite•petzite...thisgeneralization, e.g.the assemblage sylvanite-petzite-hessite is a three-component, three-phaseassemblage, but |  | | Journal (article/letter/editorial) | | late discovery of the phenomenal Cripple Creek district, essentially subsequent to the development of...Analyses of calaverite from the Kirkland Lake district, Ontario, Canada, show up to several tenths of...1995). Calaverite is known from the Star mine in Montgomery County, North Carolina, where it occurs rarely...Vindicator mine, Haralson County, and the Consolidated and Singleton mines of the Dahlonega district, Lumpkin...Lumpkin County, Georgia. Although similarly almost unknown in the north-central states, it occurs as 5-mm |  | | Journal (article/letter/editorial) | | assemblage and include the Comstock Lode, Tonopah, Goldfield, Aurora, Bodie, Paradise Peak, and Rawhide deposits...Famous districts include Comstock Lode, Tonopah, Goldfield, Aurora, and Bodie, and significant production...showed that lowsulfidation deposits in northern Nevada could be divided into two subtypes based on their...ve Ri Yellowstone Hot Spot Wyoming 0 Ma 40° Nevada S ie GREAT BASIN rra NNR Utah Ne da va California...tectonic features. Heavy line indicates the northern Nevada rift. The heavy star at the north end of the rift |  | | Journal (article/letter/editorial) | | JamesA. Noblefor the resultsof yearsof work in the mine and laboratory. Noble'sresultsin generalagree with...in magnetite. In someof the outlyingparts of the mine there is no closerelationbetweengold and arsenopyrite...associations of native gold. In the Bridge River district Cairnesx4 found free gold commonwith acicularcrystalsof...a studyof assaysof ore from theGeorgeGold-Copper Mine of Stewart,BritishColumbia, showsthat gold is associated...amountof arsenopyrite in the ore. In someareasof the mine arsenopyrite carriesmore gold than in others,but |  | | Journal (article/letter/editorial) | | THE RICH ORES OF GOLDFIELD, C. F. TOLMAN NEVADA. • A•D J. W. AMBROSE. INTRODUCTION RICH gold and..."bonanza"goldoresnoneare moreinteresting than thosefrom Goldfield,Nevada. They are extraordinarily richin freegold...Ransome,F. L.: The Geologyand Ore Depositsof Goldfield,Nevada. U.S. Geol. Surv., Prof. Paper 66, •9o9. 255...metacolloidaltextureswere recognized. THE RICH ORES OF GOLDFIELD, NEV./ID./I. 257 ALUNITE AND THE THEORY OF...but possibly before it had entirely cooled,the district and part of the surrounding region was subjectedto |  | | Journal (issue) | | Nugget," collected in 1865 at the Grit mine, El Dorado County, California, by Jules Fricot and donated...Harper’s article. John Dysart, Manager of the Reed Gold Mine State Historic Site, sent much additional information...gold. Genne and Robert Allgood (mining geologists for the Sonora Mining Company, right in the Mother Lode...occurrences in Tuolumne County, Peter Bancroft provides a report on a new specimen mining opera tion under...under way near the famous Colorado Quartz mine, Dona Leicht writes on recent gold discoveries in California |  | | Journal (article/letter/editorial) | | the deposit, whereas tellurantimony, melonite, hessite, stützite, krennerite and sylvanite are rare in...in the main and caunter lodes. In addition, hessite and montbrayite are found in trace amounts in the...SOMMAIRE Le gisement aurifère de Golden Mile, dans le district de Kalgoorlie, en Australie occidentale, est un...répandus, tandis que tellurantimoine, mélonite, hessite, stützite, krennerite et sylvanite sont rares dans...dans les essaims principaux et caunter. De plus, hessite et montbrayite se retrouvent en traces dans les |  | | Journal (article/letter/editorial) | | goldfieldite-tetrahedrite minerals from the Iriki mine, Japan MASAAKI SHIMIZU University Museum, University...goldfieldite-tetrahedrite series minerals from the Iriki mine in Japan are reported for the frst time. The compositional...goldfieldite-tetrahedrite series, coupled substitutions, Iriki mine, Japan. Introduction THE tetrahedrite structural...was first reported by Ransome (1909) from Goldfield, Nevada, U.S.A., and Thompson (1946) confirmed that...1986), those of goldfieldite are few (e.g. from Goldfield in Ldvy, 1967, and Kato and Sakurai, 1970; from |  | | Journal (article/letter/editorial) | | part of Springer Nature 2020 The Kalgoorlie district in the Archean Yilgarn Craton of Western Australia...hundreds of shafts on adjacent leases. Underground mining advanced to the 3670 ft (− 1119 m) level of the...emphasis on structural data from the Paringa South mine (Part 1). The steeply dipping Fimiston shear zones...Representative ore bodies (lodes) in the Paringa South mine (Part 2) are described in Mueller based on detailed...main D3 ore body (> 62 t Au) in the Paringa South mine (Part 3). The shoot is famous for its telluride-rich |  | | Report (volume) | | 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...E. H. Barbour, University of Nebraska, Lincoln. Nevada...........Dr. W. S. Tangier Smith, Berkeley, Cal...See Bauxite and Hallpysite. Asbestos. Tallapoosa County, with corundum deposits near Dudleyville; not found |  | | Journal (article/letter/editorial) | | Intrusion-Hosted Mineralization in the Charters Towers Goldfield, North Queensland: New Isotopic and Fluid Inclusion...Auriferous quartz sulfide veins of the Charters Towers goldfield are mainly hosted in oxidized I-type granitoids...veins at Charters Towers and the Hadleigh Castle mine (~40 km east of Charters Towers) are indistinguishable...deposition (stage II). Veins of the Charters Towers goldfield contain three different types of fluid inclusions...that the auriferous veins of the Charters Towers goldfield belong to a group of granitoid-hosted lode gold |  | | Journal (article/letter/editorial) | | in gold-silver alloys. Analyses of *Now Western Mining Corporation, 5 5 MacDonald Street, Kalgoorlie,...exploration geologist. In 1978 he joined Western Mining Corp. as a senior exploration geologist. In 1988...the Timmins-OchaliBerlin mine, Columbia (Fisher, 1950) and at the O'Brien mine, Quebec (Mills, 1954). However...character. Gold and silver grains from the Ross Mine, Ontario, 339 SILVER CONTENT (FINENESS) OF GOLD...in intrusive rocks (Troop, 1986) suggest the Ross Mine may have a different origin to typical Abitibi Belt |  | | Journal (article/letter/editorial) | | Evolution of a Large Epithermal Province: The Hauraki Goldfield, New Zealand* JEFFREY L. MAUK,1,† CHRIS M. HALL... Tucson, Arizona 85721 Abstract The Hauraki goldfield in the Coromandel volcanic zone contains approximately...Pliocene subaerial hydrothermal systems. The goldfield has been divided into three provinces (northern...et al., 2007). In the northern province of the goldfield, adularia from Paritu yields a single 40Ar/39Ar...06 Ma. The southernmost deposit in the Hauraki goldfield, Muirs Reef, has adularia in quartz veins that |
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