 | | Journal (article/letter/editorial) | | International University] at 22:16 23 December 2014 Gold mining is not romantic, it is dirty, and it is very hard...played out on a daily basis in opening the Colorado mining frontier, however, are very much the stuff...generation had seen an Colorado showing the Colorado mineral belt and the location of the mining districts discussed...1940; Elliot West 1997, verbal com.). scope of this mining economy. There simply was no other ecoThe initial...of 1858 were nomic force to compare with that of mining during the first all made along streams on the |  | | Report (issue) | | Washington FLUOBSPAR FLUOESPAR DEPOSITS OF THE JAMESTOWN DISTRICT, "ROT.ir.nER ~~~ " -----I/ By Ehf/Goddard...20 1960 )} The James tovm district, in the central part of Boulder County, Colo., 33 miles northwest...the mining 'of fluorspar has been strongly revived. Fluorspar was apparently known in the district as...of acid grade fluorspar were shipped from the district. In the last 2 years, 19U2-H3, the operators report...were mined in the district and treated in local or nearby mills, The Jamestown district is in the foothills |  | | Journal (article/letter/editorial) | | MINOR CHEMICAL ELEMENTS IN FLUORITES FROM JAMESTOWN, COLORADO Josnrn M. Bnev, LafayetteCollege,Eoston,Pennsylaania'...Drsrnrcr The Jamestown district is located in Boulder County, Colorado, 10 miles northwest of Boulder, 35 miles...po@tltr Frc. 1. Geological sketch map of the Jamestown area, showing locations of samples. The writer...chemical elements in the igneousrocks of the Jamestown district. Tnr Fr,uonrrn DBposrrs Goddard (op. cit...filling of purple fluorite. Some pyrite, galena, chalcopyrite and coarse-grained quartz are also present. |  | | Report (issue) | | Babe RIAREAN Shae YE ULUe ULUNIVOIIT oni BOULDER, COLO, NO sections PRICEL tLe y eg Digitized...org/details/fluorspardeposito00Oharr COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist ... BULLETIN 18 FLUORSPAR DEPOSITS COLORADO By HARRY KAMES A. AURAND BROTHERS, STATE 1920 PRINTERS...-...- Governor of Colorado GEORGE UNORLING nee ee President University of Colorado VicCTOR Ct A LDERGONG...TRANSMITTAL. State Geological Survey, University of Colorado, April 29, 1920. Governor Oliver H. Shoup, Chairman |  | | Report (issue) | | AND CLAY MINERALOGY OF THE CHIEFTAIN MINE, DINOSAUR RIDGE, PATCH MINE, AND OTHER LOCALITIES ALONG THE FRONT...FRONT RANGE FROM DENVER TO BOULDER, COLORADO Clay Minerals Society 39th Annual Meeting and Field Trip...Geological Survey Open-File Report 02-413 Denver, Colorado 2002 U.S. DEPARTMENT OF THE INTERIOR GALE A............................ 10 Field Trip Guide Boulder Flatirons ............................................................ 11 The clay industry in Colorado ..................................... 13 Rubey |  | | Report (issue) | | Geology and Ore Deposits of the Front Range Colorado By T. S. LO\'ERING and E. N. GODDARD GEOLOGICAL...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction..._ Quartz diorite and associated hornblendite_ Boulder Creek granite _________________ _ Pikes Peak granite...Pre-Cambrian deposits _________________________ _ Mine descriptions __________________________ _ 39 39 |  | | Journal (article/letter/editorial) | | OF TERTIARY ON FEATURES DEPOSITS AT JAMESTOWN, COLORADO. E. INTRODUCTION INTRUSIVE MINERAL N.... GeologicalSurvey, the Colorado State'Geological SurveyBoard,andthe Colorado Metal MiningFund. 2 Balk... MINERAL DEPOSITS AT JAMESTOI/VN, COLORADO. 371 settingof the district, an outline of both regionaland...ColoradoState GeologicalSurvey Board, and the ColoradoMetal Mining Fund. During this time, Mr. T. S. Lovering, of...few days eachmonth to supervisingthe work at Jamestown,and he has given the writer valuableadviceand |  | | Report (issue) | | Remediation in the Area from Denver to Idaho Springs, Colorado U.S. GEOLOGICAL SURVEY CIRCULAR 1097 Cover:...Remediation in the Area from Denver to Idaho Springs, Colorado Edited by K.C. Stewart and R.C. Severson Written...Thomas Kohnen Geoffrey S. Plumlee Richard B. Tripp Colorado School of Mines Ronald R. Cohen John C. Emerick...Ronald W. Klusman Thomas R. Wildeman Colorado School of Mines Colorado Department of Transportation Denver...remediation in the area from Denver to Idaho Springs, Colorado I edited by K.C. Stewart and R.C. Severson ; wrilten |  | | Report (volume) | | Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...______________ Boulder CountY----------------------------------~-----------Jamestown district_______...Generalfeatures--------------------------------------Blue Jay mine, by R. U. King__________________________ Fair Day...mine________________________________________ Nations Treasure mine, by R. U. King___________________ Victory group...IV Description of principal mines-Continued Boulder County-Continued Other areas __________________________ |  | | Report (issue) | | Economic Geology of the ·central City District .Gilpin County, Colorado By PAUL K. SIMS, A. A. DRAKE, ]R....Economic geology of the Central City district, Gilpin County, Colorado, by Paul K. Sims, A.A. Drake,. Jr...Central City district, Gilpin County, Colorado. 1963. (Card 2) 1. Geology, Economic-Colorado-Central City...City district. 2. Ore-deposits-Colorado-Central City district. 3. Mines and mineral re. sources-Colorado-Central...sources-Colorado-Central City district. I. Drake, Avery Ala, 1927joint author. II. Tooker, Edwin Wilson, 1923- joint |  | | Journal (article/letter/editorial) | | 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...MICHAEL J. GOBLA 19055 East Bethany Place Aurora, Colorado 80013 gobla@copper.net Unless otherwise noted...view showing the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded |  | | Report (edition) | | 2 Uses 3 Mining Methods and Recovery 3 Gold in North Carolina 5 History of Mining 5 Production...12 Portis Mine 14 Other Mines 14 Carolina Slate Belt 15 Gold Hill Mine 20 Howie Mine 21 Reed...Reed Mine 21 Other Mines Charlotte Belt 22 23 Rudisil Mine 23 Gardner Hill Mine 24 Fentress Mine...Mountain Mine Other Mines 25 25 25 South Mountain Belt 27 Mills Property 27 Sprouse Mine 27 Vein...Mountain Mine 29 Other Mines 29 Western Belt 29 Fontana Copper Mine 29 Ore Knob Mine 29 Boylston |  | | Report (issue) | | oresofo0000kell Telluride Ores of Boulder County, Colorado The Memoir Series of The Geological...America, Inc. Memoir 109 Telluride Ores of Boulder County, Colorado WILLIAM C. KELLY EpwINn N. GODDARD Department...SOCIETY OF AMERICA, INC. Colorado Building, P.O. Box 1719 Boulder, Colorado 80302 Printed in the United...assembling a representative collection of the Boulder ores. Dr. T. S. Lovering of the U.S. Geological...and numerous ore samples were donated by local mining men, particularly Fred Dopp, H. M. Williamson, |  | Alford, Lee, Gysi, Alexander P., Hurtig, Nicole C., Monecke, Thomas, Pfaff, Katharina (2020) Porphyry-related polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element chemistry. Ore Geology Reviews, 119. 103295 doi:10.1016/j.oregeorev.2019.103295 | Journal (article/letter/editorial) | | polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element...polymetallic AuAg vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element...polymetallic Au-Ag vein deposit in the Central City district, Colorado: Mineral paragenesis and pyrite trace element...Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden...submitted to Ore Geology Reviews 1 ABSTRACT The Colorado Mineral Belt is a ~500 km long segment of calc-alkaline |  | | Report (issue) | | 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 |  | | Report (issue) | | AND MINING WASTES NOTES FROM A WORKSHOP PRESENTED AT THE INTERNATIONAL LAND RECLAMATION AND MINE DRAINAGE... Predicting Water Contamination from Metal Mines and Mining Wastes O^ggg^C. Kathleen S. Smith, Ph.D. Geoffrey...80225 Workshop 2 International Land Reclamation and Mine Drainage Conference and the Third International... Predicting Water Contamination from Metal Mines and Mining Wastes FOREWORD This report contains copies of...presented at the International Land Reclamation and Mine Drainage Conference and the Third International |  | | Report (issue) | | Page Chapter I — Introduction 9 Location of district geologic Earlier 9 summary Historical 10...Galena 25 26 Sphalerite 27 Pyrite 29 Chalcopyrite 30 Barite 30 Gypsum 31 Cuprite and malachite...III — Blanket fluorite around pyrite and chalcopyrite crystals 42 "mud runs" 42 45 deposits General...General statement 45 Distribution 45 Mining methods 45 Occurrence 46 Two 46 types of ore Vugs...62 Chalcopyrite 63 Marcasite 63 62 Oil and bitumen —Origin Chapter IV Chapter V—Mine 64 |  | | Report (issue) | | Deposits of the Chicago Creek Area Clear Creek County Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 319 This...Deposits of the Chicago Creek Area Clear Creek County Colorado By J. E. HARRISON and J. D. WELLS GEOLOGICAL...deposits of the Chicago Creek area, Clear Creek County, Colorado, by J. E. Harrison and J. D. Wells. Washington...Geology Colorado Clear Creek Co. 2. Ore deposits Colorado Clear Creek Co. 3. Petrology Colorado Clear Creek..._---_-__-_--__________-____________--. History of the district-______________________________ General geology |  | | Report (issue) | | AND CALHOUN MINES CENTRAL CITY MINING DISTRICT GILP1N COUNTY, COLORADO By F.B. Moore and C.R. Batter ...WOOD AND CALHOUN MINES CENTRAL CITY MINING DISTRICT, GILPIN COUNTY, COLO. By F. B. Moore and C. R. Butler...WOOD AND CALHOUN MINES CENTRAL CITY MINING DISTRICT GILPIN COUNTY, COLO. CONTENTS Page Page Abstract ........................ Mine descriptions............................ Wood mine .. ......................bodies ........................ Mine descriptions Continued Wood mine Continued Suggestions for exploration |  | | Report (volume) | | Minerals of Colorado: A 100- Year Record By EDWIN B. ECKEL GEOLOGICAL SURVEY BULLETIN 1 1 14 A...knowledge____________________________________ Future of Colorado mineralogy______________________________________...mineral localities and metallic mineral deposits of Colorado ________________________________ In pocket III...mineral localities and metallic mineral deposits of Colorado, has not been included in this reprint. Many of...especially Fischer and others, 1946). MINERALS OF COLORADO: A 100-YEAR RECORD By EDWIN B. EcKEL ABSTRACT |  | | Journal (article/letter/editorial) | | consisting of lustrous brassy-yellow mass of chalcopyrite associated with iridescent peacockcolored massive...Murfreesboro, Pike Co., Ark. This is in the cinnabar district of Howard, Pike, and Clark Counties, Ark. This...Modesto, Calif. Both specimens come from an old Gold mine at Placerville, El Dorado Co., Calif. The following...when cut into cabachon, ashtrays and bookends." COLORADO — A most interesting specimen of small canary-yellow...by Seymour F. Dozier, Red Oak, Route 1, Fulton County, Georgia. Large lumps of this material can be picked |  | | Report (issue) | | Prospects, Idaho Springs District Clear Creek and Gilpin Counties, Colorado Descriptions and Kapa By...Commission Introduction The Idoiho Springs mining district forms an important segment of tae Front Range...west, and southwest. The adjacent Central City district, which produced ores valued at more than $100...clearly the most important district in the mineral belt The Idaho Springs district from 1860 to 1959 produced... and zinc add value to the ores in most areas. Mining activity in the Idaho Springs and adjacent districts |  | | Report (issue) | | predecessor organization, the Manhattan Engineer District ; and, to a lesser extent, by staff members of...United States. The pre-1940 history of uranium mining and geology is concerned largely with veins in...areas as the Front Range mineral belt of Colorado; the Boulder batholith area, Montana ; the Sierra Ancha...Marysvale district, Utah. All the Western States, including Arizona, California, Colorado~ Idaho, Montana...comments on the history of uranium geology and mining. The other chapters deal principally with pertinent |  | | Journal (article/letter/editorial) | | and Geochemistry, Colorado School of Mines, 1500 Illinois St., Golden, CO 80401, USA b Department of Geology...Survey, Denver Federal Center, MS 973, Denver, CO, USA e Department of Earth Sciences, SL-118, Indiana University...723 West Michigan Street, Indianapolis, IN 46202, USA Received 2 August 2010; accepted in revised form...Abstract Studies of metal sulfide oxidation in acid mine drainage (AMD) systems have primarily focused on...723 West Michigan Street, Indianapolis, IN 46202, USA. Tel.: +1 317 274 8995; fax: +1 317 274 7966 (K.W |  | | Report (issue) | | Arrington Mine Carolina Slate 'Belt 25 27 2 Gold Hill Mine 28 Placer ~lXlsits 2 Howie Mine 29 !me...me Del"'sits 2 Reed Mine 31 S<>urces and Prtxluction 5 Silver Hill Mine 31 World Sources and...Production 5 Phoenix Mine 33 United States Sources and Production 5 Hoover Hill Mine 33 Mineralogy and...Gardner Hill Mine 33 Uses 7 Fentress Mine 34 Prices 8 Mining Methc:xis 9 Rudisil Mine 34 OJ:>en-Pit...OJ:>en-Pit Mining 9 St. Catherine Mine 35 Underground Mining 9 Capps Mine 35 9 Kings Mountain Belt |
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