 | | 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) | | GEOCHEMICAL EXPLORATION FOR GOLD DEPOSITS AT GOLDFIELD, NEVADA By Roger P. Ashley and William J. Keith U...exploration at Goldfield Other references 7 - 8 GEOCHEMICAL EXPLORATION FOR GOLD DEPOSITS AT GOLDFIELD, NEVADA...in the 40 km hydro thermally altered area at Goldfield is to decide which of the many silicified ledges...supergene leaching. INTRODUCTION The Goldfield mining district is located 250 km northwest of Las Vegas...5 million troy ounces (46,000 kg) silver. The district includes 40 km of hydrothermally altered rocks |  | | 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 |  | Price, Jonathan G., Henry, Christopher D., Castor, Stephen B., Garside, Larry, Faulds, James E. (1999) Geology of Nevada With excellent rock exposures in the desert, generally good access to collecting localities on public lands, and fine tourist attractions in the towns, Nevada is a wonderful state for rock and mineral enthusiasts. Rocks & Minerals, 74 (6) 357-363 doi:10.1080/00357529909605171 | Journal (article/letter/editorial) | | towns, Nevada is a wonderful state for rock and mineral enthusiasts. T he geology of Nevada is the...human history. The overall geologic history of Nevada, which spans more than 2.5 billion years (table...Many of the range-bounding faults remain active. Nevada is the third most seismically active state in the...or greater earthquake has occurred somewhere in Nevada about once every thirty years. Most faults are...(analogous to a tilted deck of cards). However, some Nevada faults are strike-slip faults, like the San Andreas |  | | Report (issue) | | PAPER 66 THE GEOLOGY AND ORE DEPOSITS OF GOLDFIELD, NEVADA BY FREDERICK LESLIE RANSOME ASSISTED IN THE..._____ . ___________________ . _. Situation of the district.-~ ............... _..... ______ .. ________________________...______ ..... __ ........... _·_..... History of mining ....................... ............ . __ .. _.......... ............... . Correlation of the Goldfield rocks with those of the surrounding region_ .... . . . . . . . CHAPTER X.-MiJ?-eralogy of the district ................... .............. r • • • • • |  | | Journal (article/letter/editorial) | | KendallGold Mines, Goldfield, Nevada PETER G. VIKRE ASARCO Inc., 510 East Plumb Lane, Reno, Nevada 89502 Abstract...replacementof Miocenerhyolites2 mi (3.2 km) north of Goldfield,EsmeraldaCounty,Nevada.The ledges,which are approximately21...similarto those of the main district,immediatelynortheastof the town of Goldfield,where more than 95 percentof...whichcontainbeddedbaritedeposits elsewhere in southwestern Nevada,andsulfidesulfurfromTertiaryintrusions.Smallamountsof...essentiallycoevalwith rhyodacite,latite, and andesitcin the main district, subvolcanic intrusionsor diapirsof theserock | | | 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 |  | | 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 |  | | Report (issue) | | PHOTOGRAPHY FROM THE GOLDFIELD MINIITG DISTRICT, E3MERALDA AITD NYE COUJITIES, NEVADA T>y Roger P. Ashley...field area Ore producing areas, Gqldfield mining district Color print and overlays, Area 1 Color print...PHOTOGRAPHY FROM THE GOLDFIELD MINING DISTRICT, ESMERALDA AND NYE COUNTIES, NEVADA Site 75 5 Mission ...Geological Survey Introduction General. The Goldfield mining district is in the western part of the Basin and...Altitudes range from about 5500 to 6900 feet. The district is underlain predominantly by volcanic rocks |  | | Report (volume) | | ACCOUNT OF GOLDFIELD, BULLFROG, AND FREDERICK LESLIE RANSOME NOTES ON THE MANHATTAN DISTRICT G. H. GARREY..................................... Gold field district............................................................................................... Mining development..................................................................................... Mine maps......;........................................ 20 22 22 22 25 25 28 34 37 38 39 Bullfrog district.............. ............................... |  | | Catalog/List | | FAXYOUR ORDER OR INQUIRY TO: INTER-USA: 408-926-6015 NON-USA: ( • )-l-408-926-6015 CALL TOPLACE ORDERS:...these". The occurrence of Acanthite from the Cobalt District is also mentioned in "HB" I, P. l. Crystalline...1/2" thick. $28.50 A 4042AGUILARITE - San Carlos Mine, Municipio de Guandjuato, State of Guanaju...P. Aguilar, the superintendent of the San Carlos Mine, the locality from which the mineral was originally...4043AIKINITEin QUARTZ - CucomungoSpring, Esmeralda County, Nevada - Aikinite, PbCuBiS3, is available from |  | | Journal (article/letter/editorial) | | ASSOCIATION THE OF GOLDFIELD ALUNITE DISTRICT, WITH GOLD IN NEVADA. • FREDERICK LESLIE RANSOME...on Calico Peak near Rico,4 in the NationaI Belle Mine near Silverton, 5 and at CrippleCreek,ø all in Colo•...TresCerritos, Ma[iposa County,California. • Mr. W. Lindgren2 found alunite in the Ryerson mine near Morenci,...oxidized ore, and, like the kaolinite of that district,is probablySecondary with referenceto the original...in geneticrelationwith ore-veins." In the Goldfield district alunite is so abundant and so gener- ally |  | | Catalog/List | | S.A. Old No. l Headfnme. Whi ■ key Hlll Mine, Tuohnne County, CaUfomla (r■-,u. .SV•t- tor cr11•t•J...association. Few of the minute crystals you see on mine or quarry dumps or even on cabinet specimens will...dumps or surface float. Mirute crystals seen on a mine dump are a clue but nearly always tao weathered...on feldspar. 784 ADAMITE, Moha\'.1k Mine, San Bernardino County, r.alifornia. Group o f colorless to...crystals on \/ad. 104 ADAMITE, Quartz Mountain, Nevada. Pale blue to colorless nearly equant crystals |  | | Report (issue) | | Elen1ents Near Ore Bodies in the Oxidized Zone at Goldfield, Nevada GEOLOGICAL SURVEY PROFESSIONAL SPOkANE~...at Goldfield, Nevada By R. P. ASHLEY and]. P. ALBE~S GEOLOGY AND GEOCHEMISTRY OF THE GOLDFIELD MINING...MINING .DISTRICT, NEVADA GEOLOGICAL SURVEY PROFESSIONAL PAPER 843-A An evaluation of nine elements...prospecting in the hydrothermally altered area at Goldfield ·.': '• !.'· UNITED STATES GOVERNMENT PRINTIN·G...zone at Goldfield, Nevada. (Geology and geochemistry of the Goldfield Mining District, Nevada) (Geological |  | | Report (issue) | | Deposits-Part I The Goldfield Gold District, Esmeralda and Nye Counties, Nevada By ROGER P. ASH LEY ...Precious-metal District, Esmeralda and Nye Counties, Nevada By ROGER P. ASH LEY The Republic Gold District, Ferry...Ferry County, Washington By MORTIMER H. STMTZ and ROBERT C. PEARSON The Comstock Lode Precious-metal District...District, Washoe and Storey Counties, Nevada By WILLIAM C. BAGBY and ROGER P. ASH LEY U.S. GEOlOGICAl...1857H 1 Gold ores-Nevada 2 Gold ores-Wash1ngton-Ferry County 3 Hydrothermal deposits-Nevada 4 Hydrothermal |  | | Journal (article/letter/editorial) | | GEOLOGY AND ORE-DEPOSITS DISTRICT, OF THE GOLDFIELD NEVADA2 F. L. RANSOME. PART II. MINES AND...divisions,which may be cohvenientlydesignatedthe "Goldfield" and "Diamondfield" groups. Of these the first...the output of the district and includessuch well-known mines as the Mohawk, Combination, Florence, Jumbo...in rhyolite; a very importantgroup northeastof Goldfield,which is mainly in dacite, although latite is...Mohawk, Combination,January and Jumbo minesof the GoldfieldConsolidatedMines Company,the Combination Fraction |  | | 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 (article/letter/editorial) | | occurrenceshave been briefly described and illustrated in Mining and Scientific Press, January 26 and June 8, x9o7...and Kemp). Yavapai C•mnty,Arizona (Kemp). Goldfield,Nevada(with aluniteandquartz;Ransome, S.). Calif...Mothe.rLodesystem, California(calcite,S.). Shasta County, California (Kemp). One occurrencein Black Hills...HancockCounty,Maine (calcite and quartz,Kemp). Yale District, British C,elumbia(Kemp). Jalisco, Mexico (Kemp)...writer. W. 24 J. SHARWOOD. Minas Geraes district, Brazil (Henwood). Clogau and St. David's gold |  | | 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 |  | | 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 |  | | Report (volume) | | ....................................... 102 District of Columbia ............................................................................ 187 Nevada..................................................to refer to Geological 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 that are widely...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |  | 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 |  | | 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...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 (volume) | | _____ ________ 44 Miscellaneous occurrences in Nevada __ __ ______ 48 Tres Cerritos, Cal______________________________...__ 49 Cl if ton-Mo reuci district, Ariz__________ ,______ 50 Beaver County, Utah __ _____ _ ______ 50...about 7 miles due southwest of Marysvale, Piute County, Utah. It is located in and near sec. 16, T. 28...S., R. 4 W., and so far as known is covered by mining-claim locations. Marysvale is the present terminus...control of the Florence Mining & Milling Co., lessee of the Utah Gold Mountain Mining Co., including the so-called |  | | Journal (article/letter/editorial) | | 13 = Tarmoola, 14 = Éléonore, 15 = St. Ives Goldfield, 16 = Giant Yellowknife, 17 = Amaruq, 18 = Rosebel...Paleogene 32–27 9 Kawich Range Goldfield district Northen Nevada rift Buckskin-National Bullfrog Hills...Fruta Del Norte China Gaosongshan Mexico La India USA Cripple Creek China Bilihe Jinchang Serbia Bor Argentina...sulfidation epithermal deposit is associated with bismuthinite and calaverite (Fig. 4E). Gold from some porphyry...epithermal deposit. (E) Discrete gold contains bismuthinite inclusions from the Little Florence epithermal |
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