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| 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...Cotopaxi mine _____________________ _ Copper deposits in Jefferson County __ _ F. M.D. property _____________ |
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| 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 |
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| Geology and Ore Deposits of the Boulder County Tungsten District Colorado GEOLOGICAL SURVEY PROFESSIONAL... Geology and Ore Deposits of the Boulder County Tungsten District Colorado By T. S. LOVERING and OGDEN TWETO...State of Colorado through the Colorado Geological Survey Board and the Colorado Metal Mining Fund UNITED...__________________________ Principal rocks of the district.________________________ Pre-Cambrian rocks__..._____ Age_ __________________________________ Boulder Creek granite and related rocks. ____ Distribution |
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| and East Calhoun Mines Central City District Gilpin County, Colorado GEOLOGICAL SURVEY BULLETIN 7 his...and East Calhoun Mines Central City District Gilpin County, Colorado By AVERY A. DRAKE, JR. GEOLOGY AND...OF CLEAR CREEK, GILPIN, AND LARIMER COUNTIES, COLORADO GEOLOGICAL SURVEY BULLETIN 1032-C This report..._______________________________________________ Gold and silver__________________________________________..._________ 145 35. Graph showing the relation of gold to silver in samples from the Wood vein________ |
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| YEAR 1687"—DAVID T. DAY, CHIEF OF THE DIVISION OF MINING STATISTICS AND TECHNOLOGY WASHINGTON GOVERNMENT...exten sive deposits, such as coal and iron fields, gold belts, etc., are mentioned in general terms. 688...and consump tion, or better and cheaper means of mining, extraction, and convey ance to market, may in...correspondence has been carried on with geologists, mining engineers, and other local authorities, and various...ALABAMA—Mined. Mineralogical name. Coal, var. bitu minous. Gold. Common name. Remarks. Coal, bituminous coal |
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| 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, |
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| it helpful to refer to Survey Bulletin 507, "The mining districts of the western United States," and to...abundant, it may have been completely exhausted by mining or quarrying. Deposits of minerals of wide distribution...especial interest or value. Some minerals, such as the copper ores of Pennsylvania, are included in the list...because they occur in sufficient quantity to warrant mining for their usual products but because they furnish...Stanford University, Palo Alto. Colorado.........Prof. R. D. George, Boulder. Connecticut..... .Prof. William |
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| PROSPECTS, LAWSON-DUMONT-FALL RIVER DISTRICT, CLEAR CREEK COUNTY, COLORADO By C. C. Hawley and Frank Baker...Clear Creek Larger mines in the Red Elephant group Boulder Nest-Free America vein White vein St. James vein...Suggestions for prospecting Other mines on Red Elephant Hill and in Young America Gulch ClevelandC?) mine Flat...Flat Iron vein Mines east of Red Elephant Hill Central America (Tinker) mine-Comstock vein Dexter mine...; Young America vein Mines west of Red Elephant Hill Amboy mine Girard mine Kanawha vein and the Doctor |
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| Smith. Director Professional Paper 138 MINING IN COLORADO A HISTORY OF DISCOVERY, DEVELOPMENT AND PRODUCTJON...__________________________ .. _______ _ The first discoveries of gold _____________________ _ Chronologie record __________...location, area, and organization of the mining counties of Colorado _________________________ _ Adams County_-..._____________________ _ Alamosa County __________________________ _ Arapahoe County _________________________...Archuleta County _________________________ _ Baca CountY-----------------------------Boulder CountY------ |
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| Uranium Deposits of the Caribou Area, Boulder County Colorado GEOLOGICAL SURVEY BULLETIN This report...Uranium Deposits of the Caribou Area, Boulder County Colorado By F. B. MOORE, W. S. CAVENDER, and' E..._________________ . Idaho Springs formation --______________ Boulder Creek granite____..________________ _ Caribou ...deposits_______________________________________________ Gold veins. _ __ Lead-silver veins_____________________________________...mines__________________ Great Northern mine___________________ Gold-silver mines.. ___ ________________ ____ __________ |
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| .3 COLORADO. of COLORADO. J. S. l GEORGETOWN, COLO. GEORGETOWN COURIER PRINT. 1887. 3 Bancroft...From a mineralogical point of view the wealth of Colorado exceeds that of In the metallic minerals almost...to in the following pages Proceedings of the Colorado Scientific Society. Proceedings of the Academy... GEORGETOWN, COLORADO, January, 1887. S. RANDALL. : MINERALS OF SOLORADO, GOLD. the octahedron...shapes, in scales and rolled Color various shades of gold-yellow, sometimes inclining to silmasses. ver-white |
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| Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...mines_______________________________________ Boulder CountY----------------------------------~-----------Jamestown...group_________________________________________ Gold Hill district_ __ _____ _____ __ __ __ __ ____ __ ____...IV Description of principal mines-Continued Boulder County-Continued Other areas __________________________...Moore______________________________ Clear Creek CountY------------------------------------------Idaho |
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| ............................................. Colorado........................................................................................ 102 District of Columbia ....................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to...abundant it may have been completely exhausted by mining or quarrying. Deposits of minerals that are widely...especial interest or value. Some minerals, such as the copper ores of Pennsylvania, are included in the list |
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| ...........................................59 Colorado ...............................................................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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| LEAD AND ZINC. NOTES ON LEAD AND COPPER DEPOSITS IN THE BEAR RIVER RANGE, IDAHO AND UTAH. By R. W. RICHARDS...notes on the mineral deposits, mainly lead and copper, in the Bear River Range of Idaho and Utah, concerning...CONTRIBUTIONS TO ECONOMIC GEOLOGY, 1910, PART I. The copper ores consist mainly of the carbonates, azurifce...quartz and FIGURE 29. Map showing relation of mining prospects to Bear River Range and overthrust. The...associated with either the lead or the copper ores. LEAD AND COPPER IN BEAR RIVER RANGE, IDAHO-UTAH. 179 |
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| ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...to the California gold rush of 1849, this portion of Alabama experienced its own gold rush, largely unprofitable...unprofitable, although gold may still be panned in the regional streams. Most of the rest of the state...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |
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| ...........................................47 Colorado ................................................rights, so remember you were told. If in doubt, a county map will tell you who the legal owner is. Good...to the California gold rush of 1849, this portion of Alabama experienced its own gold rush, largely unprofitable...unprofitable, although gold may still be panned in the regional streams. Most of the rest of the state...gemmy qualities for cutting and polishing. AUTAUGA COUNTY PRATTVILLE, N. 6 mi., and just E of the Birmingham |
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| Downloaded by [University of Colorado - Health Science Library] at 05:32 11 October 2014 PART 1 Downloaded...Downloaded by [University of Colorado - Health Science Library] at 05:32 11 October 2014 A Historical...Historical Overview of t h e District and the Smuggler Union and Associated Mines and Veins of Marshall Basin... Inc. 1441 West 46th Avenue, Suite 14 Denver, Colorado 80211 n 1875 Co\orado was still a territory awaiting...Hontirig a t Argenteuil-and John Fallon discovered gold and silver in the high mountains near where the |
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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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| £LqL \3 —OF— Colorado Deposits. u PROFESSOR AT STATE SCHOOL OF GOLDEN, COLORADO DENVER, COLO.:...delivered by the author to the students of the Colorado State School of Mines. It is published with a...interested in the geological relations of the mines of Colorado. The first part of the work contains a rough sketch...sketch is further applied to the local geology of Colorado. The second part refers to the phe¬ nomena of...illustrated by Colorado. The last part contains a brief account of some of the principal mining districts |
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| GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H. GARREY..................._.......... . Distribution in Colorado ................................................. 97 Chapter I.-Discussion of principles ... 97 Gold-bearing and silver-bearing groups of veins .......predominantly gold-bearing veins ..... 0.............. 97 Recognition of distinct silver--bearing and gold-bearing....... :-_. __ ._ ....... : ............ _.... 97 Gold belt near Georgetown.· .................. _. __ |
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| ..................... . .......... . .52 Silver Hill formation ... _... _. ___ . __ ...................- .... - .... -- .............. - ... - ... 80 Colorado formation ......................................_- _- _... - ..... - - - - - - _86 Sill in Silver Hill formation. ____ ... ____ ...... __ .... __ . _.... _- __ 86 Basic intrusives in the Cretaceous on Gold Creek .. __ ._ .. ___ .. __ . __ . _____ ._. __...______ . ___ . ____ . _.. ___ _ 102 Intrusion on Boulder Creek __ .. _____ . .. ___ . ______ . __ ... ___ |
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| Geology of the Idaho Springs District Clear Creek and Gilpin Counties, Colorado GEOLOGICAL (=) I o 00...of the Idaho Springs District Clear Creek and -i ;i ?i Gilpin Counties, Colorado By ROBERT H. MOENCH and...____ Mines and prospects in the Idaho Springs district ________________ Previous studies.___________..._------------------Saver............_._._ 1. . Copper-___----______-_-------_-_------__--------------__Pitchblende...uranium sulfate minerals.__-____..__.____._________ Copper sulfate minerals____________________________________ |
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| COLORADO GEOLOGICAL SURVEY BOULDER R. D. GEOqGE, State Geologi.t BULLETIN 22 MINERAL DEPOSITS OF THE...oozi5137 EAME"S BROS, STATE PRINTERS FOR COLORADO DENVER. COLORADO GEOLOGICAL B O A R D His Excellency...Shoup George Norlin Governor of Colorado President University of Colorado Victor C. Aldersox.. Charles...TRANSMITTAL State Geological Survey, Uxiversity of Colorado, October 28, 1920. Governor Oliver H. Shoup. Chairman...honor to transmit herewith Bulletin 22 of the Colorado Geological Survey. Very respectfully, R. D. George |
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| 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...-Cook Inlet-Susitna region --------------------Copper River region -------------------------Kuskokwim |
