 | | Journal (article/letter/editorial) | | Tucson, Arizona 85721, USA 2Department of Geoscience, New Mexico Institute of Mining and Technology, Socorro...Socorro, New Mexico 87801, USA (Received June 1I, 1992; accepted in revised form October 15, 1992) Abstract-Rhenium...Proterozoic molybdenites have altered to Re-enriched powellite, which can be detected using back-scattered electron...Porphyry Base Metal Deposits Copper Creek, Arizona, USA Molybdenites from porphyry base-metal deposits are...total surface area scanned. American Eagle, Arizona, USA The hypogene core ofthe porphyry system at Copper |  | | 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) | | tand Tungstenand Gold Mineralizationnear the Getchell Mine, Humboldt County, Nevada* MILES L. SILBERMAN...in the OsgoodMountains of eastern Humboldt County, Nevada. Within the metamorphicaureole surroundingthe...which the disseminatedgold ore bodiesof the Getchell mine are localized. K-Ar agesof the granodiorite,andesiteporphyry...Introduction THE Getchellgold depositin Humboldt County is one of a group of disseminatedgold deposits•of...patternsof distributionof heavymineralsand gold within the stock. Nevada. Other ore depositsof this type include |  | | Report (issue) | | RESOURCES OF ELKO COUNTY, NEVADA By Roscoe M. Smith Prepared in cooperation with Nevada Bureau of Mines...Acknowledgment -Mining districts Commodities Production Descriptions of mining districts . Alder district-Aura district...district -Beaver district Black Mountain district Bootstrap district Burner district Burns Basin district--...-Carlin district Cave Creek district ----Charleston district_--Coal Mine district~ Contact district Cornucopia...Cornucopia district - -Corral Creek district - Decoy district Delano district Delker districtDivide district |  | | Book (volume) | | Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods |  | | Book (volume) | | Most specimen collecting is done in the Lead-Zinc mining dists. of northwestern Illinois, the glacial drift...600 to 800 feet thick in the north. ALEXANDER COUNTY FAYVILLE, area stream gravels⎯agate, jasper, rare...⎯agate, jasper; d RR siding of Clay⎯agate. CALHOUN COUNTY AREA, shores of the Mississippi R., in the Warsaw...crystals). CRAWFORD COUNTY PALESTINE, area deposits⎯Siderite. EDWARDS COUNTY AREA, T. 1 S, R. 10 E...deposits⎯Siderite. FULTON COUNTY FARMINGTON, W 6 mi. on Rte. 116 to the Rapatee No. 5 strip mine⎯pyritized gastropods |  | | Book (volume) | | chalcedony, jasper and gem petrified wood. BUFFALO COUNTY KEARNEY, area gravel bars and pits along the Platte...townagate, chalcedony, jasper, petrified wood. CASS COUNTY WEEPING WATER, SE, on rd. to Nehawka, in the Snyderville...chalcedony, jasper, fossils. CHERRY COUNTY VALENTINE, in the Sandhills county along the Niobrara R. and Minnechaduza...gem qualityagatized and opalized wood. DAWES COUNTY CHADRON, in N part of Co. and as far W as Crawford...woods, etc. DAWSON COUNTY GOTHENBURG, in sand pitspetrified palm wood. DEUEL COUNTY CHAPPELL, all regional |  | | Journal (issue) | | A. Logan, District Mining Engineer C. Jenkins, Chief Geologist McK. Laizure, District W. Burling...Tucker, Reid J. Mining Engineer District Sampson, Assistant Mining Engineer District Engineer Chas...Chas. V. Averill, District Mining Engineer George John L. Gary, Mineral Technologist F. Bongard, Ore-Buyers'...C. Statistician and Curator O'Brien, Junior Mining Engineer (Librarian) Eldridge D. Drew, Geological...OF CONTENTS Page DISTRICT REPORTS OF MINING ENGINEERS 7 Sacramento Field District 7 San 7 Francisco |  | | Book | | stumble over a valuable nugget and stake your own mining claim? Indeed it to is, and author book Jay...prospecting, he points out, is in abandoned mining districts, where valuable mineral ores are present...commercial ores and secondary minerals by state, county, township, and geologic range. For easy identification...RANSOM 1875-1948 An to the Eastern '‘Schoolmarm” Mining Camps of the Old West I I a s I \ h K... CONTENTS Preface ix PART I 1 Introduction to Mining and Mineralogy 2 Preparation for Mineral Collecting |  | | Report (issue) | | Principal Gold-Producing Districts of the United States By A. H. KOSCHMANN and M. H. BERGENDAHL GEOLOGICAL...description of the geology, mining history, and production of the major gold-mining districts in 21 States...relations ---------------------------History of gold mining and trends in production_ J\labama ---------...--------------Cleburne County ----------~----------------- Tallapoosa County --------------------------Alaska...------------------Cochise County -----------------------------Gila County --------------------------------Greenlee |  | | Journal (volume) | | Geologist C A. Logan, District Mining Engineer C. McK. Laizure, District W. Burling Tucker, Reid...Reid J. Frank Sanborn, District Mining Engineer District Engineer Mining Engineer Mineral Technologist...Henry H. Symons, J. C. District Sampson, Assistant Ohas. V. Averill, John Mining Engineer Statistician...Statistician and Curator O'Brien, Junior Mining Engineer (Librarian) San Francisco — Sacramento San Francisco...Reports of District Milling' Engineers Redding Field District Sacramento Field District San Francisco |  | | Report (issue) | | 1965. 1966. 1967. 1968. Numerous Federal, State, county, and local agencies and other organizations and...cooperators________-____________________ State, county, and local cooperators_____________ Other cooperators..._____ Regional offices_______________________ District offices_______________._ Offices in other countries...anomalies; these coincide with the two known gold mining districts near Wiseman and Chandalar. A third...between granite and carbonate rock north of the mining districts. The concentration of silver is not high |  | | 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...(1933) AIME TRANSACTIONS VOLUME AIME TRANSACTIONS MINE PLANT VOLUME 112, MILLING METHODS (1933) (1934)...AND ZINC (1936) 134, MILLING METHODs 141, METAL MINING (1939) (1937-40) BLAST FURNACE, COKE OVEN AND |  | | Book | | Ontario Museum, Toronto, Canada Claudia Gasparrini GOLD and Other Precious Metals From Ore to Market G...Inc. 6651 N. Campbell Ave. # 102 Thcson, AZ 85718, USA ISBN-13 :978-3-642-77186-6 e-ISBN-13:978-3-642-77184-2...literature on gold deposits has increased exponentially during the past eight years. The books on gold geology...most cases certain geographical areas (for example, Gold in Canada, etc.), or they contain papers presented...presently given LO the base metals. After all. if gold is the most significant means of international payment |  | | Report (issue) | | economically. As a part of our response to the Mining and Mineral Policy Act of 1970, the Geological...J. P. Muffler ----------------------------------Gold, by Frank S. Simons and William C. Prinz ------...resources into minable reserves-"rock in the box," in mining parlance; a few examples are the discoveries of...Ontario and the disseminated gold deposits of Carlin and Cortez in Nevada, and the development of technology...equivalent of the southeast 3 INTRODUCTION Missouri district can be expected to turn up in the future ; the |  | | 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, and local agencies and other organizations and.... . Iron .................................... . Gold .................................... . Geologic......... Hydrothermal alteration in northeastern Nevada .. . Light metals and industrial minerals ....... . Idaho ................................... . Nevada ...•.....•..........•.•............ Oregon ......cooperators ............................. . State, county, and local cooperators ................. . Other |  | | Book | | Netherlands. Special regulations for readers in the USA — This publication has been registered with the Copyright...made in the USA. All other copyright questions, including photocopying outside of the USA, should be referred...J ■ I p r e s e n t l i m i t of 1 underground mining ■ ■ 1 1 •H CO CO cd •H cd \ i 4-1 •H c ...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) |  | | Book | | Netherlands. Special regulations for readers in the USA — This publication has been registered w i t h the...made in the USA. A l l other copyright questions, including photocopying outside of the USA, should be...u n d e r g r o u n d 1 of QJ · · u , Ό mining 1 1 IL··I _ l ~ U C > cd rH cd 3 1 "1...sills), if they are exposed in outcrop or in the mine workings at all. The Climax Mo complex is the best...Batholith near Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) |  | | Book | | A Comprehensive Example: The Cree de District, Colorado, USA 4.11. Summary 4.12. Recommended Reading...697 CHAPTER 16. GOLD DEPOSITS 16.1. Introduction 16.2. Distribution 16.3. Types of Gold Deposits 16.4.... Examples 16.5. Origin of Hydrothermal Gold Deposits 16.6. Metallogenesis 16.7. Summary 16.8. Recommended...form of earthy hematite) or valuable (e.g., native gold and gemstones) materials they contained at places...disseminating the information, the mine geologists and mine managers who have made the mine visits a rewarding experience |  | | Book | | J. T. Nash, H. C. Granger, and S. S. Adams 63 Gold and Uranium in Quartz-Pebble Conglomerates.D. A...and Sherman P. Marsh 775 Electrical Methods in Mining Geophysics.Gerald W. Hohmann and Stanley H. Ward...making a profit. Initially incorporated in the District of Columbia, the Publishing Company was reincorporated...With the engineering and commercial aspects of mining, Economic Geology will not be directly concerned...cratons and from 3,200 to 2,600 m.y. elsewhere. Gold-quartz veins and Algoma-type banded iron-formations |  | | Book | | shales, hornfels and granites of the Harzburg district, showed that the amount of boron decreases from...(the quartz continuing). 2. Pyrite, arsenopyrite, gold. 3. Pyrrhotite, chalcopyrite, stannite, native bismuth...abundant in arsenopyriterich samples from Wongabah Mine, characteristically forming aggregates of fibrous... 155 and 156). (i) Replacements by Silver- and Gold- Containing Minerals (With Reference Also to Cobalt...argentite is partly replaced by Au tellurite and gold. Fig. 168 shows argentite replaced by Au tellurite |
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