 | | Report (issue) | | Geology and Ore Deposits ofthe Summitville District San Juan Mountains Colorado By THOMAS A. STEVEN and JAMES...PAPER 343 Prepared in cooperation with the Colorado Metal Mining Fund Board UNITED STATES GOVERNMENT PRINTING...underlying Cropsy Ridge . Quartz latites near South Mountain.... Petrography _______________________ Upper...ridges-__--_---------_----_-.-__---.Lavas underlying North Mountain._______ Lavas capping the ridge east of Park Greek...Greek. Possible upper Fisher dikes on South Mountain. _____-___________-------_--._-_Petrography. __ |  | | Report (issue) | | FRAMEWORK AND ENVIRONMENTAL GEOLOGY OF THE SUMMITVILLE, COLORADO ACID-SULFATE MINERAL DEPOSIT By J.E. Gray1...P.O. Box 25046, MS 973, Denver, CO 80225 2 1505 South Meridian, Lovelock, NV 89419 CONTENTS Page INTRODUCTION................ 1 GEOLOGICAL FRAMEWORK OF THE SUMMITVILLE DEPOSIT................... 2 Structure............................... 10 Evolution of the Summitville hydrothermal system............ 11 ENVIRONMENTAL...ILLUSTRATIONS Plate 1. Geologic map of the Summitville open-pit highwall........................... |  | | Book | | MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Sine —_—< ¢ te om At _SHT 40...MINES AND MINERALS OF THE GREAT AMERICAN RIFT (COLORADO-NEW MEXICO) Richard Walker Holmes and Marrianna...Mines and minerals of the Great American Rift (Colorado-New Mexico). Bibliography: p. Includes index...index. 1. Mines and mineral resources—Colorado. 2. Mines and mineral resources—New Mexico. I. Kennedy, Marrianna...enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground |  | | Journal (article/letter/editorial) | | Discovery, Mining History, Geology, and Specimen Mineralogy of Selected Occurrences in Central Colorado and...Inc. 1441 W. Forty-sixth Avenue Suite 14 Denver, Colorado 80211-2338 P art one of this article (July/August...of gold in Colorado and the mining history and geology/mineralogy of the Front Range mining districts...and California Gulch. THE CENTRAL COLORADO MINERAL BELT LAKE COUNTY 3,396,000 ounces, 1860-1 990 (Davis...tortuous route journeyed to the South Platte, which the group followed into South Park. Continuing across the |  | | Journal (issue) | | Julius Weber Mamaroneck, New York COLORADO ISSUE #2 Articles Colorado locality index.............................. 323 by B. L. Muntyan What’s new in Colorado minerals? ...................................... Famous mineral localities: the Home Sweet Home mine ..................................................339 by M. I. Jacobson The San Juan Mountains of Colorado ..................................349 by J. A...10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar specimen; photo by John |  | | Journal (article/letter/editorial) | | HISTORY OF FOUR Native Silver Localities 7 in Colorado Downloaded by [University of California, San Diego]...72 Golden, Colorado 80403 All photos by author unless otherwise noted SINCE 1859 COLORADO HAS PRODUCED...rather than the native metal. Native silver in Colorado has been deposited both as a primary mineral,...across, Up to Date mine, Bald Mountain, Caribou area, Grand Island district, Boulder County. Specimen owner...(Front Range, central, and San Juan Mountains) of Colorado mineral belt. Some representations of mineral |  | | Journal (article/letter/editorial) | | 1994, pp. 1906-1923 GeologyandGeochemistry of Summitville,Colorado'An EpithermalAcid SulfateDepositin a...Geologicstudiesduringrecentopen-pitminingat Summitville,Colorado,haveprovided newinformationonanepitherm...alsoanomalous at Summitville. Highest 0361-0128/94/1645/1906-1854.00 1906 SUMMITVILLE DEPOSIT:GEOLOGY&...epithermaldepositasdefinedby Ryeet al. (1992).The Summitville depositis situatednear the intersectionof the...the ring fracturezone of the nestedPlatoro and Summitville ealderas. Placergoldwasfirst discoveredat Summitvillein |  | | Book | | Gkologim-in-charge. CATALOGUE OF MINERALS FOUND IN COLORADO. BY • F. M. ENDLICH. [EXTRACTED FROM THE TENTH...been adopted. tar as practicable, analyses of Colorado minerals have been given. They will aid examination...of the catalogue. systematic enumeration of the Colorado mineral species and references to the publications...Endlich, S. IN COLORADO. X. D. The continuous development of mineral resources of Colorado is productive...Geological .Report for PS75. Now, the survey of Colorado is completed, many additions of species new to |  | | Report (volume) | | iron oxides; blue represents rock and soil with little or no iron-oxide content; and white represents...Potential and Geology of the San Juan National Forest, Colorado Edited by Richard E. Van Loenen and Anthony B...potential and geology of the San Juan National Forest, Colorado I edited by Richard E. Van Loenen and Anthony...: I 19.3.2127 1. Mines and mineral resources--Colorado-San Juan National Forest. I. Van Loenen, Richard...famous mining districts, such as those at Rico and La Plata, but there is no significant mining being |  | | Report (issue) | | Smith. Director Professional Paper 138 MINING IN COLORADO A HISTORY OF DISCOVERY, DEVELOPMENT AND PRODUCTJON...location, area, and organization of the mining counties of Colorado _________________________ _ Adams County_-..._____________________ _ Alamosa County __________________________ _ Arapahoe County _________________________...Archuleta County _________________________ _ Baca CountY-----------------------------Boulder CountY------...CountY----------------------~----Chaffee County _____________________·______ _ Clear Creek County _______________________ |  | | Report (issue) | | THE ASPEN DISTRICT, COLORADO By ADOLPH INTRODUCTION \ , The Aspen district of Colorado was mapped...well-known monograph.1 With the lapse of 30 years mining in the area surveyed by Spurr has come to a standstill...done in the vicinity of Kichmond Hill, a little farther south, and public demand has consequently arisen...the United States Geological Survey to visit the district, and he did so in July, 1923. The only topographic...mapped by the writer in the vicinity of the Little Annie mine, or Kichmond Hill. Plate 1 is a composite |  | | Report (issue) | | MENDENIJALL, Fcir CIRCULAR 7 GOLD - QUARTZ VEINS SOUTH OF LIBBY, MONTANA By RUSSELL GIBSON WASHINGTON...Director --0-CIRCULAR 7 -0--- GOLD - QUARTZ VEINS SOUTH OF LIBBY, MONTANA BY RUSSELL GIBSON WASHINGTON...;:be Diamond John Fisher Creek Golden West Mining Company Little An:lie Libby or Libby Creek Midas Montezuma...Figure 3 Plan of Fisher Creek mine 3 4 18 80815 Gold quartz veins south of Libby, Montana By Russell...tetrahedrite, and scheelite are present sparingly. A little silver is present, and in some veins it exceeds |  | | Report (volume) | | History .of. mining and.output-___----_-_____ _________________ 66 67 67 Outlook.for mining.__.__.___...___________ Golden West Mining Co______________________________ Little Annie._____________________________________...and prospects________________ _ _________ Grouse Mountain-Callahan Creek area._.___---_--__-____ 95 95...Hiawatha__ ____________________________________ Little Spokane.--.__...___.-._____..._Silver Strike.___________... BlacktaiL. __________________________ Keeler Mountain._________________________________ 107 107 108 |  | | Report (issue) | | 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 -- |  | | Report (volume) | | Geology of Uranium Deposits in the Front Range, Colorado By P. K. SIMS and D. M. SHERIDAN With sections...mines_______________________________________ Boulder CountY----------------------------------~-----------Jamestown...Generalfeatures--------------------------------------Blue Jay mine, by R. U. King__________________________ Fair Day...mine________________________________________ Nations Treasure mine, by R. U. King___________________ Victory group...Description of principal mines-Continued Boulder County-Continued Other areas __________________________ |  | | Book (edition) | | who have been engaged in the study of our great mining regions, especially in the West, have laid the...now in the active practice of the profession of mining engi neering. J. F. K. DECEMBER, 1899. NO TEXT...PART). — INTRODUCTORY REMARKS ON IRON ORES. — LIMONITE. — SIDERITE. General literature, 83, 84; table...re marks on composition and occurrence, 85-87; Limonite, Example 1, bog-ore, 87-92; Example 2, brown hematite...125-129; Marquette district, 129-136; Menominee dis trict, 136-139; Penokee-Gogebic district, 139-143; Vermilion |  | | Report (volume) | | . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...on the Colorado Plateau sparked several periods of exploratIon that ultimately led to a mining "boom ll |  | | Report (issue) | | ARIZONA LODE GOLD MINES AND GOLD MINING by Eldred D. Wilson, J. B. Cunningham, and G. M. Butler Bulletin...Arizona Tucson ARIZONA LODE GOLD MINES AND GOLD MINING by Eldred D. Wilson, J. B. Cunningham, and G. M...Mines Bulletin No. 137, ARIZONA LODE GOLD MINES AND MINING, was originally issued in 1934 in response to the...and, in view of the restrictions placed on gold mining during the war, it was not considered necessary...which deals with the laws and regulations governing mining, however, have been deleted, inasmuch as many of |  | | Report (issue) | | stream and river sediments, Alamosa River basin, Colorado by S.E. Church, S.A. Wilson, and P.H. Briggs1...Introduction Geology of the Alamosa River basin Mining activity and impact Deposit geology Chemical and...7. 8-14. Geologic map of the Platoro caldera, south-central Colo. Map showing distribution of faults...Generalized geologic map of the Summitville open-pit mine Localities of larger mine workings, Alamosa River basin...basin Schematic cross-section through the Summitville deposit Locality map showing stream-sediment samples |  | | 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 |  | | Book (edition) | | Muineralogy of Arizona Stope in oxide ore, Copper Queen mine, Bisbee. These old workings were probably mined...his co-authors. A graduate of Michigan College of Mining and Technology (now Michigan Technological University)...a member of the faculty of Michigan College of Mining and Technology for three years, leaving that position...noted for computer applications in geology and mining engineering. The authors and publisher express...permission to reproduce the Map and Index of Arizona Mining Districts. Carleton B. Moore, Peter R. Busek, and |  | | Book (edition) | | Wu!fenite. Red Cloud mine, Si/district, Trigo Mountains, La Paz County, Arizona. Smithsonian Institution...and Second Editions PART 2 HISTORY OF ARIZONA MINING AND MINERALOGY The Prehistoric Period 20 Arizona...Deposits 63 The Bisbee District, Cochise County 64 The Tombstone District, Cochise County 70 The Mammoth-St...Mammoth-St. Anthony Mine, Tiger, Pinal County 78 Uranium and Vanadium Deposits 80 Monument Valley 81 - • Vll...Breccia Pipes 87 Pegmatites 88 "Mine Fire" Minerals, United Verde Mine, Jerome Arizona Meteorites PART |  | | Report (issue) | | D. WALCOTT, DIRECTOR GEOLOGY ASPEN MINING DISTRICT, COLORADO WITH ATLAS JOSIAH EDWARD SFURR SAMUEL..._ Cretaceous series 41 Dakota formation ; Colorado formation 42 43 . Pre-Cretaceous uncomformity... _ 53 _ 54 _ 54 Aspen special map Aspen Mountain 56 v CONTENTS. vi CHAPTER II. General...Aspen Mountain Continued. 5(3 Folding.- 58 Faulting Resume of structure on Aspen Mountain... Smuggler...Smuggler Mountain Resume of structure on 72 74 : Smuggler Mountain 77 Red Mountain 78 Description | | | Book (edition) | | his co-authors. A graduate of Michigan College of Mining and Technology (now Michigan Technological University)...a men1ber of the faculty of Michigan College of Mining and Technology for three years, leaving that position...noted for con1puter applications in geology and mining engineering. The authors and publisher express...permission to reproduce the Map and Index of Arizona Mining Districts. Carleton B. Moore, Peter R. Busek, and...Copper-Related Deposits The Bisbee District Tl1e Mammoth-St. Anthony Mine, Tiger 17 17 21 3. Uranium and |  | | Book | | 193-256 137-208 129-192 209-264 193-256 [ [ COLORADO-Ill] 177-256 121-184 89-168 1-120 1-88 [ ...177-256 185-280 169-248 [ 425-528 337--400 COLORADO-II] 321--400 337--400 ARIZONA-Ill] 337--400...69-132 65-128 1-64 11 / 1980 20 I 1989 [ COLORADO-I] [ 289-352 385-448 [ AUSTRALlA] 353-504...On a spectacular find of crocoite in the Adelaide mine, Dundas, Tasmania (by A. H. Chapman) 3:111-113 ADOLFSSON...Iaria from the Howard-Montgomery quarry, Howard County, Maryland (by J. S. White) 25:53-54 AFGHANISTAN |
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