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| Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...with its representation of mining tools clearly proclaim Montana’s mining origins. Montana’s production...published describing the occurrence, collecting, mining, and cutting of the two state gemstones. Figure...2. Granville Stuart established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces |
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| Montana, Treasure State for the Crystal Mineral Collector By GERALD J. NAVRATIL Bex 70, RFD 7, Middleburg...crystal mineral localities within the state of Montana. Quite accurately the state has been officially...mineralminded public. The well-publicized Butte copper district has been ignored since the writer feels certain...well known. Amcnnpijiite: In the Emery Mining district (Powell County) the mineral is found in wellformed...Crevasse Mountain Mining district near Jardine (Park County). At the Kennebec mine in the Crevasse Mountain |
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| Director Bulletin 842 OF THE GREATER HELENA MINING REGION MONTANA BY J. T. PARDEE and F. C. SCHRADER UNITED...______________________-__-_________--_------___-_ Ophir district.________________________________________________...__________---__--_-___ Austin district._.____..._..._._.____._____.____.___-.___._____ Marysville district.___________...___________________________________________ Gould district._______________________________________________ Stemple...._ Heddleston district.___________________________________________ Wolf Creek district.._..........__ |
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| deposit. Table 4, part B, gives an alphabetic list of mine and properties followed by the deposit name. CHARACTERISTICS...deposits used in Table 1 may represent a major mine, district name, or local town name or other prominent... Pyrrhotite appears to be been reported in just a single mine in the East Belt of the Sierra Nevada foothills...86 percent of the districts in Nova Scotia. Chalcopyrite was "very minor" in the Mother Lode (Knopf,...Victoria (Junner, 1921). Hotz (1971) reports that chalcopyrite was uncommon in deposits of this type in the |
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| 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...ee County ----------------------------R[aricopa County ----------------------------R[ohave County -- |
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| and Ore Depostts of the Darwin Quadrangle Inyo County, California GEOLOGICAL SURVEY PROFESSIONAL Prepared... Geology and Ore Deposits ofthe Darwin Quadrangle Inyo County, California By WAYNE E. HALL and E. M. MAcKEVETT...lead-silver-zinc district ______________ _ Geochemical prospecting ___ ._ ____________ _ Future of the district ___________________...___________________ _ Zinc Hill district ___________________________ _ Lee district _______________________________...Hills-----------------------------------Santa Rosa mine ______________________ _ Deposits in the Talc City |
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| Alaska.. a Includes 550 tons from Davis, Murray County, Okla. 'Production to 1934 only. PART 1. GENERAL...fluorspar-zinc district Upper Mississippi Valley zinc-lead district Valle Mines, Mo. Tri-State zinc district Arkansas...province : Leadville, Colo. Aspen district, Colo. Spring Creek diStrict, Colo. Monarch-Tomichi districts...Cottonwood district, Utah Northern Rocky Mountains province: Mineral Hill (Halley) district, Idaho Alder...Alder Creek or Mackay district, Idaho Texas (Gilmore) district, Idaho Warm Springs (Ketchum) dis· trict |
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| 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 |
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| 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 |
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| said to have been found in the mining the nugget Jim, Placer County, California, in 1871 by a small...Counties of California: Minerals and mineral lists Mining Districts of California Unvalidated entries in...The bibliography has been updated and expanded. County lists published by Collins (1) pp. 40-64, in Murdoch...resulting from references to the geographic term ''Mining District," especially in the pre-1920 literature. Widespread...rhyolite locality in Alameda County and the lawsonite type locality Marin County, which have been completely |
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| mines near the falls of the James River in Amherst County, as well as several placer mines in other parts...production during the early boom years of gold mining in Virginia (Park, 1936, p. 8). I t allows for...BELT Whitehall mine.-Gold in place was first discovered in 1806 a t the Whitehall mine, 1.5 miles northwest...Shady Grove Church in western Spotsylvania County. The mine was worked between the years 1848 and 1884;...was found within an area of 20 square feet a t the mine in just a few days. Another report states that a |
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| SMITH, Director ' Bulletin 648 NOTES ON SOME MINING DISTRICTS IN EASTERN NEVADA BY JAMES M. HILL...Clark County.......................................................'.. Gold Butte mining district.................... Lincoln mine........................................ Bennett mine.........................gneiss............................. Gold Butte Mining Co................................. New Era group...prospects...................................... Elko County............................................... |
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| SEPTEMBER 2020 • VOL 221 • NUMBER 9 FEATURES Smart Mining Needs High IQ Monitoring Systems Sound operational...Victoria Achieves Commercial Production at Eagle Gold Mine in Yukon..........................................to truck-shovel mining. On the cover, an electric shovel loads a haul truck at a mine in South Africa...As this edition was going to press, the National Mining Association (NMA) announced hard dates for the...13-15, 2021). At the same time, the Society for Mining, Metallurgy and Exploration (SME) and the Prospectors |
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| types in the Darwin polymetallic skarn district, California, USA R. Newberry Department of Geology, University...University &Alaska, Fairbanks, AK 99775, USA Abstract. The polymetallic Pb-Zn-Ag-W-Cu-Au skarn and vein...systematic pattern. The Darwin district in California, USA, is one such district, as it contains Cu-rich, W-rich...19'62) have been produced from the area. The Darwin district is notable for one of the few integrated S-C-O...assemblages present in the district it is not clear how representative the Darwin district is of skarn deposits |
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| 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 ...... |
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| P. Blake, professor of mineralogy, geology and mining at the College of California, parent to the University...California, and published in the fourth and sixth State Mining Bureau reports. Then beginning in 1914 with a volume...are reported by county of occurrence. Map 1-2 shows the county boundaries and county names. When possible...,o Map 1-2. Outline map of California showing county boundaries. __ _) 4 MINERALS OF CALIFORNIA...composition between acidic and basic rocks. drift mine Adit(s) driven into gravel. euhedral Characterized |
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| rewhich was publi.shed as Bulletin 67 of the State Mining Bureau. vision by the same author in 192-3 increased...tribes in the northeast corner of San Bernardino County in pre-historic times. The old workings here were...stone hammers, and called his claim the Stone Hammer mine. This find aroused so much interest that the San...circumstance the location was named the Stone Hammer mine. "The State Slining Bureau reported at about the...desert region between Death Valley and Goff's Mining District, nearer the former, and that good samples were |
 | Catchpole, Honza, Kouzmanov, Kalin, Bendezú, Aldo, Ovtcharova, Maria, Spikings, Richard, Stein, Holly, Fontboté, Lluís (2015) Timing of porphyry (Cu-Mo) and base metal (Zn-Pb-Ag-Cu) mineralisation in a magmatic-hydrothermal system—Morococha district, Peru. Mineralium Deposita, 50 (8) 895-922 doi:10.1007/s00126-014-0564-x | Journal (article/letter/editorial) |
| mineralisation in a magmatic-hydrothermal system—Morococha district, Peru Honza Catchpole & Kalin Kouzmanov & Aldo...Berlin Heidelberg 2015 Abstract The Morococha district in central Peru is characterised by economically...history of magmatichydrothermal activity in the district. In the late Miocene, three individual magmatic-hydrothermal...the oldest magmatichydrothermal system in the district and consists of a composite porphyry stock associated...magmatic-hydrothermal centre in the west of the district has a maximum duration of 0.3 Ma, ranging from |
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| involves the breakdown of some sulfide, such as chalcopyrite or galena, and the combination of the released...Preble Hill mine near Garland, Maine; the old lead mine near Middletown, Middlesex County, Connecticut;...Sterling Hill, New Jersey; and the Perkiomen mine, Montgomery County, and the well-known Wheatley and nearby...nearby mines, Phoenixville, Chester County, Pennsylvania (Slot0 1989). In the western United States. where...Chaffee County; the Leadville district, Lake County; the Bulldog Mountain mine in the Creede district, Mineral |
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| an overall guide been written on gold and gold mining of publications have no single report or to...longer district Hulin, respectively. the principal features of each gold-bearing district are described...publications were written on various phases of gold mining. The reports of John Trosk, the first State Geologist...Commissioner of Mineral prepared reports of mine production and gold-mining Bureau, and later now the California...The California Mining in 1880, gold-mining operations; the and Geology and the County a number of |
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| P. Blake, professor of mineralogy, geology and mining the at College of California, parent to the...mineralogist of California, and pub- and sixth State Mining Bureau reports. Then beginning volume prepared...species are reported by 1-2 shows the county boundaries and county names. When possible, locations of mines...within a township is illustrated by Figure 1-1. county of occurrence. Map *M. Fleischer’s 1980 Glossary...Map 1-2. Outline map of California showing county boundaries. 4 MINERALS OF CALIFORNIA R5W i |
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| THE DARWIN SILVER-LEAD MINING DISTRICT, CALIFORNIA. By ADOLPH KNOPF. INTRODUCTION. Most of the lead...districts, all in Inyo County, in the eastern part of the State. The Cerro Gordo district has been by far the...years $7,000,000 in argentiferous lead. The Darwin district has probably yielded between $2,000,000 and $3...000. The geologic features of the Cerro Gordo district have recently been described by the writer,1 and...present report to describe those of the Darwin district. The data on which this report is based were obtained |
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| particular service in co- operating with the State ^Mining Bureau in making possible this addition to our...a part of the Fourth Annual Report of the State Mining Bureau, by Henry G. Hanks, who was then quently...the thirty years which elapsed since the State Mining Bureau. appearance of the second list, our knowledge...literature of a general nature on Die geology and mining industry of the State. The various kinds of minerals...Woodcock, formerly of the State Mining Bureau. Walter W. Bradley of the State Mining Bureau, M. Vonsen of Petaluma |
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| ..........................................258 Montana ................................................................548 Table of Maps Page Alabama County Map ...................................................................................4 Alaska County and Stream Map ..................................Co. Mining Districts ............................................................22 Arizona County Map.........................23 Arizona – Cochise Co. Mining Districts .................................... |
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| read Vonsen. p. 46. T'nder anatase, San Benito County, add, at end of sentence, 136. They do Louderhack...30 E... M.n., read p. 89." Under cerussite. Inyo County (1) for sec. U,. T. sec. IJ,, T. 6 S., R. 30 E...erytlirite. add Tuolumne County: erijthrite 189. arscnopyrite in the Josephine mine, Logan (16), p. p. 1...Lake County, Bradford oecurence sliould bo li.sted as 2. p. 210. !^^onazite, Itiverside County, reference... Fisher (1 ) p. 1 'i'/. p. 2M. Powellite, Kern County, 2, under Wiese and I'age, reference should read |
