 | | Report (issue) | | Replacement Deposits Part I Bald Mountain Gold Mining Region, Northern Black Hills, South Dakota By JAMES...City Mining District, Utah By CALVIN S. B ROM FIELD Gold in the Eureka Mining District, Nevada By DANIEL...and THOMAS B. NOLAN Gold in the Central City Mining District, Colorado By ALAN R. WALLACE U.S. GEOLOGICAL...bibliographies. Contents: pt. 1. Bald Mountain gold mining region, northern Black Hills, South Dakota / by...City mining district, Utah / by Calvin S. Bromfield. Gold in the Eureka mining district, Nevada / by |  | Heald-Wetlaufer, Pamela, Hayba, Daniel O., Foley, Nora K., Goss, J.A. (1983) Comparative anatomy of epithermal precious- and base-metal districts hosted by volcanic rocks: A talk presented at the GAC/MSC/GGU Joint Annual Meeting, May 11-13, 1983, Victoria, British Columbia. Open-File Report Vol. 1983 (83-710) US Geological Survey doi:10.3133/ofr83710 | Report (issue) | | precious and base metals 9 Ore from the Creede district, Col. 10 Typical alteration zoning for the highly...deposition. 16 6 180-6D diagram for the Creede district, Col. (modified from Bethke and Rye, 1979). 1...ranges from fluid inclusion studies for the Colqui district, Peru (from Kamilli and Ohmoto, 1977). 19 Temperature...inclusion studies for the Sunnyside mine, Eureka district, Col. (modified from Casadevall and Ohmoto...gold ore on silicified wall rock from Goldfield, Nevada. My coauthors and I have compared and contrasted |  | Arehart, G. B., Chakurian, A. M., Tretbar, D. R., Christensen, J. N., McInnes, B. A., Donelick, R. A. (2003) Evaluation of Radioisotope Dating of Carlin-Type Deposits in the Great Basin,Western North America, and Implications for Deposit Genesis. Economic Geology, 98 (2) 235-248 doi:10.2113/gsecongeo.98.2.235 | Journal (article/letter/editorial) | | of Geological Sciences, University of Nevada, Reno, Reno, Nevada 89557 J. N. CHRISTENSEN, Lawrence Berkeley...Canyon deposit in Utah. Complete resetting of sericite by hydrothermal fluids of the temperature and...Therefore, dates from sericite are generally of questionable value unless that sericite can be shown to have...to date, sericite dates rarely, if ever, record the age of Au mineralization. However, sericite ages do...Barrick Goldstrike Mines, Inc., P.O. Box 29, Elko, Nevada 89803. 0361-0128/01/3326/235-14 $6.00 deposits |  | | Report (issue) | | The Eureka Mining District Nevada By THOMAS B. NOLAN GEOLOGICAL SURVEY PROFESSIONAL PAPER 406 Prepared..._ Pogonip group _____________________________ _ Eureka quartzite ___________________________ _ Hanson...of the ores _______________________ _ Mines and mining ______________ __________________ _ Production...the Eureka mining district, Nevada. 2. Geologic sections of the Eureka mining district, Nevada. 3. Geologic...Geologic structure map of the Eureka mining district, Nevada. UI 24 25 26 26 26 26 27 27 27 27 28 28 |  | | Journal (article/letter/editorial) | | THE SUNNYSIDE MINE EUREKA MINING DISTRICT SAN JUAN COUNTY, COLORADO TOM ROSEMEYER Box 586 Ouray, Colorado...the late 1800s and early 1900s, at the height of mining activity, the sprawling Sunnyside mine complex...in the camp without going outside. In the 1960s, mining was carried out on the Washington vein above the...labeled as follows: Sunnyside mine, Eureka min ing district, San Juan County, Colorado. In 1973, diamond drilling...thought to be barren (Bird, 1986). Subse quent mining of the orebodies over the next six years pro duced |  | | Journal (article/letter/editorial) | | Abstract The Sunnysidemine, in the Eureka mining district, San Juan County, Colorado, produces700 tons/day...veinsfilling faultsandfracturesalongthe northernsideof the Eureka graben,whichformedduring resurgent doming of the...northerlyflow until they encountered the structuresof the Eureka graben. Here the primary mechanismof precipitationwas...depositionat the Sunnysidemine, Eureka mining district, San Juan County, Colorado (Fig. 1). The rediscoveryin... Summary of Production,SunnysideMine, San Juan County, Colorado Metal 1974t Average ore= grade--1974 |  | | Journal (article/letter/editorial) | | 102, pp. 1129–1155 Bald Mountain Gold Mining District, Nevada: A Jurassic Reduced Intrusion-Related Gold...Colorado 80209 Abstract The Bald Mountain mining district has produced about 2 million ounces (Moz) of...isotopic compositions of H and O in quartz and sericite and S and Pb in sulfides are indicative of magmatic...with exhumation made them amenable to open-pit mining and processing using cyanide heap leach methods...methods. Introduction MINERAL DEPOSITS in Nevada account for about 70 percent of the Au produced in the United |  | | Journal (article/letter/editorial) | | GEOLOGISTS 1980 MultistageVein Ores of the Lake City District, Western San Juan Mountains,Colorado John,• F...Abstract Polymetallic vein ores of the Lake City district, in the western San Juan Mountains, Colorado,have...Wall-rock alterationcharacteristicallyis quartz-sericite-pyrite,grading laterally outward into rocks affectedby...pyroxmangite,calcite,sericite,and fluorite. At the Ute-Ulay mine, the largest producerof the district, titis assemblagehas...massiverhodochrosite'and Id, late quartz-carbonate-fluorite.On a district-wide scale,the quartz-basemetal assemblage showsa |  | | Report (issue) | | resource areas in the Basin and Range Province of Nevada by George Wong Open-File Report 83-721 This...Appendix A **~""~~"* "* *** *"* * » Table Table 1. District descriptions . .-.-.-. . -.-. . . . .-. .-. <...resource areas in the Basin and Range Province of Nevada By George Wong The purpose of this map is to identify...Province. These areas include past and present mining and prospecting localities as well as areas of...map are not legal mining district boundaries and may include more than one district as well as adjacent |  | | Report (issue) | | Geology of the Carlin Gold Deposit, Nevada U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1267 /Ju l/ /Ea..... 041).- Geology of the Carlin Gold Deposit, Nevada By ARTHUR S. RADTKE U.S. GEOLOGICAL SURVEY PROFESSIONAL...Arthur S., 1936— Geology of the Carlin gold deposit, Nevada. (Geological Survey professional paper ; 1267)...no.: I 19.16:1267 1. Gold ores—Nevada—Carlin region. 2. Geology—Nevada—Carlin region. I. Title. II. Series...� 5 Previous work � 6 History of the Lynn mining district � 7 Geology � 8 Sedimentary rocks � 8 Paleozoic |  | | Journal (article/letter/editorial) | | calcite, Minerva No. 1 Mine, Cave in Rock district, Har din County, Illinois. Harvard Mineralogical Museum...Quartz and chalcopyrite, Bandora mine, San Juan County, Col orado. Barbara and John Muntyan specimen...November-December: Gold, Jamestown, Tuolumne County, California. California State Mining and Mineral Exhibit specimen;...Tourmaline from Little Cahuilla Mountain, Riverside County, California, K. Gochenour, 440 Borates, 488 Bornite...Metamict Samarskites from the South Platte Pegmatite District, Colorado, 458 British Columbia, quartz, 459 Brunet |  | | Journal (issue) | | Rosenzweig Tampa, Florida Richard W. Thomssen Reno, Nevada photography Nelly Bariand Paris, France Wemer Lieber...quartz, 10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by...significant mineral localities in C o l o r a d o ,by county. In addition, there is a complete listing o f all...LOCALITY INDEX BOULDER COUNTY Caribou Mine Caribou (near Nederland), Caribou District (Silver, Uraninite... Copper Rock Ward District (Azurite, Malachite, Cerussite, Galena) Gold Hill Gold Hill District (Nagyagite, |  | | 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 |  | | Report (issue) | | Replacement Deposits Part II Gold in the Tintic Mining District, Utah By HALT. MORRIS Gold Deposits in the...Bird Mining Districts, San Juan Mountains, Colorado By FREDERICKS. FISHER Gold in the Alma Mining District...R. SHAWE Precious Metals in the Leadville Mining District, Colorado By TOMMY B. THOMPSON Part I is Chapter...bibliographies. Contents: pt. 1. Bald Mountain gold mining region, northern Black Hills, South Dakota / by...Tintic Mining District, Utah / by Hal T. Morris. Gold in the Sneffels-Telluride and Camp Bird mining districts |  | | Report (volume) | | General Geology of the Jackson Mountains Humboldt County, Nevada By RONALD WILLDEN CONTRIBUTIONS TO GENERAL...BULLETIN 1141-D Prepared in cooperation with the Nevada Bureau of Mines UNITED STATES GOVERNMENT PRINTING...Jackson Mountains and nearby areas in Humboldt County, Nev. Suggested correlation of the Tertiary rocks...the Jackson Mountains and other areas in Humboldt County. Nev. Page Index map.________________________..._____ D3 Generalized geology of northwestern Nevada.______________ Happy Creek volcanic series in the |  | | 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 ...... |  | | Report (volume) | | and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado U.S. GEOLOGICAL SURVEY BULLETIN 1715-B...and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado By RICHARD F. SANFORD, RICHARD I. CRAUCH...and Handles Peak Wilderness Study Areas, Hinsdale County, Colorado. (Mineral resources of wilderness study...Peak (CO-030-241) Wilderness Study Areas, Hinsdale County, Colorado. CONTENTS Summary 1 Abstract 1 Character...identified resources 9 Methods of evaluation 9 Mining history 9 Appraisal of sites examined 10 Redcloud |  | | Journal (article/letter/editorial) | | New Mexico Institute of Mining and Technology, Socorro, New Mexico 87801, USA Abstract. The San Cristobal...Generalized geologic map of the San Cristobal district (modified from Petersen, 1965) sisting of pyrite... wolframite, and quartz with trace amounts of sericite and augelite (A12PO4OH2); the second was a base-metal...the destruction of feldspar and the growth of sericite in the hydrothermally altered volcanic wall rock..., Ohmoto, H.: Sunnyside mine, Eureka mining district, San Juan County Colorado: Geochemistry of gold |  | | Report (issue) | | oxidized zinc and zinc-lead ores in Colorado, Utah, Nevada, and California______________ 3. Types of supergene...recently production has been increasing in Utah and Nevada. The term "oxidized zinc deposits" is used in this...Alaska.. a Includes 550 tons from Davis, Murray County, Okla. 'Production to 1934 only. PART 1. GENERAL...of the oxidized zinc deposits in Colorado, Utah, Nevada, and California. (See also Heyl and Bozion, 1960...fluorspar-zinc district Upper Mississippi Valley zinc-lead district Valle Mines, Mo. Tri-State zinc district Arkansas |  | MAGLAMBAYAN, Victor B., ISHIYAMA, Daizo, MIZUTA, Toshio, MATSUBAYA, Osamu, ISHIKAWA, Yohei (2001) Oxygen and Carbon Isotope Study of Calcite and Dolomite in the Disseminated Au-Ag Telluride Bulawan Deposit, Negros Island, Philippines. Resource Geology, 51 (2) 107-116 doi:10.1111/j.1751-3928.2001.tb00085.x | Journal (article/letter/editorial) | | ‰. The δ18O values of calcite and dolomite in sericite- and carbonate-altered, mineralized dacite porphyry...mined jointly by Philex Mining Corporation and Philippine National Bank. The mining rate was initially 2...the bullion ranged from 1:0.6 to 1:1.8 (Philex Mining Corporation, unpublished data). Previous studies...mineralization, and the formation of environment (Philex Mining Corporation, 1992; Manuel and Jadoc, 1992; Maglambayan...phenocrysts. “Heterolithologic breccia” (Philex Mining Corporation, 1992) has been used to describe several |  | | 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 |  | | Journal (article/letter/editorial) | | O. R¾• Abstract The TungstenQueenmine, Vance County,North Carolina, is a large quartz-huebnerite vein...the •ein which involvesmeteoric waters. Quartz-sericite oxygenisotopedistributions in the vein and wall...TungstenQueen deposit,a singlevein in the Hamme district,Vance County,North Carolina,has a geologicsettingand...suggested thatthe veinsof the Hamme understanding district were depositedby hydrothermalfluids which had...the tungstenveins Hamme tungstendistrict,Vance County, North 523 524 T. CASADEVALL AND R. O. RYE |  | | Journal (article/letter/editorial) | | Igneous and Sedimentary Rock Sources in Northern Nevada: Implications for Fluid and Metal Sources* R. M...J. S. CLINE, University of Nevada, 4505 Maryland Parkway, Las Vegas, Nevada 89104 C. MARK FANNING, Research...calcareous rocks around the Carlin trend in northeast Nevada. Petrologically similar rocks host the Getchell...the Carlin trend and from the Jerritt Canyon mining district have Pb isotope characteristics similar to...1990). In some sedimentary rock-hosted deposits in Nevada, this link has been established (Hitchborn et al |  | | Report (volume) | | Geology of the Cortez Quadrangle Nevada By JAMES GILLULY and HAROLD MASURSKY With a section on Gravity...BULLETIN 1175 Prepared in cooperation with the Nevada State Bureau of Mines The area includes a thick...System____-_-____--_-_-_-_--_---__-----___-_-. Eureka Quartzite__ __-___-_-_--_-__-_---_---___-_-_____...faults______-_____-__------_--__--_-----__-___-___ Mining history.___________________________________________________...Geologic map and sections of the Cortez quadrangle, Nevada 2. Map showing location of fossil collections |  | Chil-Sup, So, Seong-Taek, Yun, Se-Hyun, Kim, Jae-Ho, Lee (1994) Cretaceous epithermal Au-Ag mineralization in the Muju-Yeongam district, Republic of Korea: Muju mineralized area. Journal of Mineralogy, Petrology and Economic Geology, 89 (2) 56-74 doi:10.2465/ganko.89.56 | Journal (article/letter/editorial) | | epithermal Au-Ag mineralization in the Muju-Yeongam district, Republic of Korea: Muju mineralized So Chil-Sup*...silicic, chloritic occurs at probably and sericite % NaCl of and that of combined -12 result...with Ma the open age. mine (Table vein the Sericite within the yielded a 1), indicating of...The "vuggy silica" rock is composed of quartz, sericite and traces of pyrite. The quartz forms both medium..."vuggy silica" rock and contains trace amounts of sericite but lacks voids. It occurs as discontinuous segments |
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