 | | Report (issue) | | Metals in Silicified Rocks of the Goldfield Mining District, Nevada GEOLOGICAL SURVEY PROFESSIONAL ...Metals in Silicified Rocks of the Goldfield Mining District, Nevada By R. P. ASHLEY and W. GEOLOGY ...GEOCHEI\1ISTRY OF THE GOLDFIELD MINING GEOLOGICAL SURVEY PROFESSIONAL DISTRICT, PAPER NEVADA 843-B Exploration...Exploration and geochemistry of the Goldfield mining district, Nevada UNITED STATES GOVERNMENT PRINTING...of the Goldfield Mining District, Nevada. (Geology and geochemistry of the gold mining district, Nevada) |  | | 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 |  | | Report (issue) | | DISCRIMINATION OF ROCK TYPES AND ALTERED AREAS IN NEVADA BY THE USE OF ERTS IMAGES PREPARED IN COOPERATION...OF HYDROTHERMALLY ALTERED AREAS IN SOUTH-CENTRAL NEVADA BY THE USE OF COMPUTER-ENHANCED ERTS IMAGES By...----------------------Geology of the Goldfield mining district -------------------------------Structural...scene -----------------------------ERTS mosaic of Nevada showing location of study area --------Geologic...the Goldfield mining district __ Golor aerial photograph of part of the Goldfield mining district __ _ |  | | Report (issue) | | Elen1ents Near Ore Bodies in the Oxidized Zone at Goldfield, Nevada GEOLOGICAL SURVEY PROFESSIONAL SPOkANE~...Elements Near Ore Bodies in the Oxidized Zone at Goldfield, Nevada By R. P. ASHLEY and]. P. ALBE~S GEOLOGY...GEOLOGY AND GEOCHEMISTRY OF THE GOLDFIELD MINING .DISTRICT, NEVADA GEOLOGICAL SURVEY PROFESSIONAL PAPER...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) | | SURVEY GEOCHEMISTRY OF THE ALTERED AREA AT GOLDFIELD, NEVADA, INCLUDING ANOMALOUS AND BACKGROUND VALUES...---- Illustrations Page Figure 1. Map of Goldfield, Nev., and vicinity, showing areas df hydrothermal...samples------- 89 '15. Statistical data for 13 illite-kaolinite-bearing argillized Jqm samples --- -...- - ~ -- 90 Statistical data for 16 illite-kaolinite-bearing argillized TV samples- -- 91 /16. '...unaltered Tl samples -19. Statistical data for 47 illite-kaolinite-bearing argillized Tl samples - . 20 |  | | Report (volume) | | east-west, northwest, and northeast within the district. Hawkins (1982) postulated that the east-west...upper- and lower-plate rocks in the Jerritt Canyon district is thought to be a high-angle fault. Exposure...cover in the district. REGIONAL STRATIGRAPHY Most of the rocks in the Jerritt Canyon district are Paleozoic...the Enfield Bell mine, Jerritt Canyon district, Elko County, Nevada. � Geology of the Enfield Bell Mine...Mine and the Jerritt Canyon District, Elko County, Nevada 97 Lower-plate rocks Lower-plate stratigraphy |  | | 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 |  | | 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) | | of these minerals were made in the Goldfield, Nevada, mining district with a four-channel radiometer. The...collection of altered rocks from the Goldfield, Nevada, mining district [Hunt and Ashley, 1979], have shown...reflectancesurveyswere conductedin the Goldfield,Nevada, mining district.An Exotech Model 100 radiometer...geology, alteration, and ore deposits of the Goldfield district. The following discussion is abstracted from...Ashley's report, except where noted. Geolo•iy. The Goldfield deposit is one of a group of epithermal precious |  | Bernet, Matthias, Piraquive, Alejandro, Urueña, Cindy, López-Isaza, Julián Andrés, Bermúdez, Mauricio A., Zuluaga, Carlos, Amaya, Sergio, Villamizar, Nicolás (2019) Multidisciplinary petro-geo-thermochronological approach to ore deposit exploration. Ore Geology Reviews, 112. 103017 doi:10.1016/j.oregeorev.2019.103017 | Journal (article/letter/editorial) | | (1976) published a study on the Goldfield mining district in Nevada, using K-Ar and apatite and zircon...the Carlin-type gold deposit thermochronology in Nevada as an example. Since the early studies of Lipman...events, predominantly alunite, biotite, sericite, illite etc. (Ashley and Silberman, 1976; Lippman et al...the thermal history of an ore deposit or mineral district can be elucidated, and data outliers can be easily...Bielicki and Tischendorf, 1991), or Ar-Ar dating of illite and sericite (e.g. Wilson and Kyser, 1988; Hofstra |  | | Report (issue) | | information: Colqui, Peru; Comstock, Nevada; Creede, Colorado; Goldfield, Nevada; Guanajuato, Mexico; Lake City...Oatman, Nevada; Pachuca-Real Del Monte, Mexico; Red Moutain, Colorado; Round Mountain, Nevada; Sunnyside...Sunnyside mine, Eureka district, Colorado; Summitvilie, Colorado; and Tonopah, Nevada. No data were found for...for the Silver City - De Lamar, Idaho district. The purpose of this report is to make this compilation...Environment of ore deposition in the Creede mining district, San Juan Mountains, Colorado: Part IV. Source |  | | Journal (article/letter/editorial) | | Potosi’s coat of arms, bestowed by Charles V of Spain; Mining Journal, 1997). Cerro Rico, located next to the...proposed open-pit operation by Comibol, the national mining company of Bolivia, in 1993, but concerns about...the small miners led to the tender withdrawal (Mining Journal, 1996). There is another silver resource...part of the sacred profile of Cerro Rico; open-pit mining is not considered a problem. These deposits have... owing to insufficient technology. District Geology The district can be generalized as a shallow-level |  | Rytuba, J. J., Arribas, A., Cunningham, C. G., McKee, E. H., Podwysocki, M. H., Smith, J. G., Kelly, W. C., Arribas, A. (1990) Mineralized and unmineralized calderas in Spain; Part II, evolution of the Rodalquilar caldera complex and associated gold-alunite deposits. Mineralium Deposita, 25. doi:10.1007/bf00205247 | Journal (article/letter/editorial) | | GeologicalSurvey, 345 MiddlefieldRoad, Menlo Park, CA, 94025 USA 2 Department of Geological Sciences, 1006 C.C. Little...Michigan, 48109 USA 3 U.S. GeologicalSurvey, 959 National Center, Reston Virginia, 22092 USA 4 Directorate-GeneralXII...tonnes of ore averaging 2.5 grams per ton (Skillings Mining Review 1988). The gold-alunite deposits are primarily...al. 1987). Potassium-argon dating of alunite and illite from the alteration zones associated with gold...caldera range from 9.5+_0.5 M a to 11.3-t-0.4 M a for illite and 10.3+_0.4 M a to 10.6_+0.5 M a for alunite |  | | Report (chapter) | | kaolinite and alunite + kaolinite + muscovite (or illite) are common as part of the advanced argillic alteration...localities: La Tolfa, Italy; Marysvale, Utah; and Goldfield, Nevada. La Tolfa is a hot-springs deposit, in which...1983, Cunningham et al. 1984). In contrast, Goldfield, Nevada is a magmatic-hydrothermal, gold‒sulfosalt...contents (samples 3 and 4 in Table 5). Alunite from Goldfield (sample 5 in Table 5) contains up to 0.20 wt %... La Tolfa, Italy, 4. Marysvale, Utah, 5. Goldfield, Nevada (and arsenate) may be the main limiting factor |  | | Journal (article/letter/editorial) | | Fe-oxide/hydroxidized. Kaolinite decreases, smectite ± illite, gypsum, barite, alunite, jarosite, pyrite, native...in the development of kaolinite and smectite ± illite under acidic and basic conditions, respectively...composition and formation temperatures of kaolinite and illite, based on meteoric water (– 4.5 ‰), are 33 –170...conditions for the formation of kaolinite and smectite ± illite within the volcanic units. This research may be...Fe-(oxyhydr)oxidized (Figs. 2e, f). Smectite ± illite are abundant towards the Kışladağ gold deposit |  | Rytuba, James J., Arribas, Antonio, Cunningham, C.G., McKee, E.H., Smith, James G., Arribas, Antonio (1989) Evolution of the Rodalquilar caldera complex and associated gold-alunite deposits, Cabo de Gata volcanic field, southeastern Spain. Open-File Report Vol. 1989 (89-326) US Geological Survey doi:10.3133/ofr89326 | Report (issue) | | CALDERA Mediterranean Sea La Isleta del Moro Mining areas Caldera margin El Pozo de I os Frailes LOS...principal geographic features, margins of calderas, and mining districts within the Cabo de Gato volcanic field...tons of ore averaging 2.5 grams per ton (Skillings Mining Review, 1988). The gold-alunite deposits are primarily... 1987 ). Potassium-argon dating of alunite and illite from the alteration zones associated with gold...caldera range from 9.5 ± 0.5 Ma to 11.3 ± 0.4 Ma for illite and 10.3 ± 0.4 Ma to 10.6 - 0.5 Ma for alunite |  | Bethke, Philip M., Rye, Robert O., Stoffregen, Roger E., Vikre, Peter G. (2005) Evolution of the magmatic-hydrothermal acid-sulfate system at Summitville, Colorado: integration of geological, stable-isotope, and fluid-inclusion evidence. Chemical Geology, 215 (1) 281-315 doi:10.1016/j.chemgeo.2004.06.041 | Journal (article/letter/editorial) | | Pennsylvania 15218, U.S.A. d U.S. Geological Survey, Reno, Nevada 89557, U.S.A. b Accepted 1 June 2004 Abstract...quartz monzonite porphyry intrusion underlies the district and is cut and overlain by pyrite–quartz stockwork...the geology, mineralogy, and geochemistry of the district (Steven and Ratté, 1960; Stoffregen, 1985, 1987;...been variously referred to in the literature as Goldfield-type (Steven and Ratté, 1960; Bethke, 1984),...such as Chinkuashi, Taiwan (Huang, 1955), Goldfield, Nevada (Ashley, 1974; Vikre, 1990), Julcani, Peru |  | | Report (volume) | | Rocks, Snowstorm Mountains and Vicinity, Northern Nevada By Alan R. Wallace and E.H. McKee................Terrill Mountains Area, Holy Cross District, Churchill County, Nevada By Stephen G. Peters, Richard F....Eocene and middle Miocene volcanism in northern Nevada blanketed larger areas than has been previously...mapping by Peters and others (chapter D) in western Nevada has established a geologic and structural context...epithermal mineralization in the Holy Cross mining district. This work permits an evaluation of the mineral |  | | Report (volume) | | Cuprite and Goldfield, Nevada, mining districts 4. Generalized geologic map of the Cuprite district 5. Generalized...Generalized map of the Cuprite district showing distribution of hydrothermally altered and unaltered rocks...limonitic and nonlimonitic rocks in the Cuprite and Goldfield districts 7. Thematic Mapper Simulator color-ratio...color-ratio composite of the eastern part of the Cuprite district 8. Stability ranges of mineral suites in alteration...Cuprite district 10. Thermal-Infrared Multispectral Scanner color composite of the Cuprite district showing |  | | 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 • • • • • |  | | Report (issue) | | of the Southeast Missouri base metal and barite district, by A. V. Heyl..................................structures containing Pags 3 Examples^ Skelletaa District, Sweden Hljura-Kotalenti Belt, Finland Thompson...the Langmuir deposit in Canada and the Kambalda district in Australia. Favorable targets for domestic deposits... Examples are the Thompson district in Canada and the Skellefte district in Sweden. Favorable target...deposits with some guides for exploration. Trans. Soc. Mining Engineers, Vo. 260, pp. 31-15. Naldrett, A. J. |  | | Report (volume) | | Akita Univ. Mining Colt Jour. Akita, Japan. Alabama Acad. Sci. Jour. Ala. Journal of the Mining College...Canada. Canadian lost. Mining and Metallurgy Spec. Vol. - Canadian Institute of Mining and Metallurgy Special... Ontario, Canada. Canadian Mining and Metall. Bull.- The Canadian Mining and Metallurgical Bulletin....Institute of Mining and Metallurgy. Montreal, Quebec, Canada. Canadian Mining Jour. - Canadian Mining Journal...Ltd. London, England. Eng. and Mining Jour. - Engineering and Mining Journal. Co. New York, N.Y. McGraw~Hill |  | | Report (issue) | | ------California ------------------------------Nevada ---------------------------------Oregon ------...l cooperators --------------------------State, county, and local cooperators -----------Other cooperators...gional offices ----------------------Area and District offices -------------Earth Resources Observation...----------------Regional offices ----------------------District offices -----------------------Offices in other...deposits and tectonic features, central Sierra Nevada, California F. C. W. Dodge reports that the distribution |  | | Report (issue) | | A293-A298 of this chapter. Numerous Federal, State, county, 1and local agencies and other organizations and..._ _ California _____________________________ _ Nevada _______________________________ _ Idaho ______...development, and research_ Nevada Test Site ______________________ _ Central Nevada _______________________...cooperators ____________________________ _ 251 State, county, and local cooperators ______________ _ 251 Other...Regional offices ________________________ _ 259 District offices _________________________ _ 259 Offices |
|
