 | | Report (issue) | | Quadrangle, Chaffee County, Colorado GEOLOGICAL SURVEY Work done in cooperation with the Colorado State Mining...Mining Industrial Development Board PROFESSIONAL PAPER 829 Geology and Mineral Deposits of the Poncha...Poncha Springs SE Quadrangle, Chaffee County, Colorado By RALPH E. VAN ALSTINE GEOLOGICAL SURVEY PROFESSIONAL...829 Work done in cooperation with the Colorado State Mining Industrial Development Board Description...Springs SE quadrangle, Colorado Page .In pocket Index map of south-central Colorado ______ __ ____ Photographs |  | | Book (edition) | | MILEAGE L OGS. REVISED EDITION Revised Edition, COLORADO GEM TRAILS AND MINERAL GUIDE HICllAHD :--1. PEARL...an extensive ¥em and mineral collecting tour 01 Colorado, revealing the interesting places where Nature...Swallow, Publisher) 2679 South York Street Denver, Colorado 80210 - , =· - ·, BOOKS BY RICHARD M. PEARL...PEARL Exploring Rocks, Minerals, Fossils in Colorado America's Mountain: Pikes Peak and the Pikes Peak...Atlas of Colorado American Gem Trails Nature As Sculptor: A Geologic Interpretation of Colorado . Scenery |  | | Report (volume) | | of the Leadville 1°X2° quadrangle, west-central Colorado : summary and discussion I by Alan R. Wallace...Radioactive dating-Colorado-Leadville Region. 2. Geology, Stratigraphic. 3. Geology-Colorado-Leadville Region...Appendix E. Geochronologic data listed by mining district .. ........... ............. .......... .....geochronology samples, Leadville 1°X2 o quadrangle, Colorado. III IV CONTENTS FIGURES 1. 2. 3. 4. 5. 6...of the Leadville 1°X2° quadrangle, west-central Colorado........................ 2 Map showing major geologic |  | | Report (issue) | | Deposits of the Poncha Springs NE Quadrangle, Chaffee County,Colorado By RALPH E. VAN ALSTINE With a section... 626 Prepared in cooperation with the Colorado State Mining Industrial Development Board UNITED STATES...Van Alstine and Doak C. Cox _________ _ Colorado-American mine ______________ -_Delay adit and Lloyd shaft...--_-----_Manganese Hill and Chimney Hill mines_Last Chance mine _________________ -_-_Other fluorspar deposits ________... Geologic map of the Colorado-American fluorspar mine, Browns Canyon district. Geologic map of underground |  | | Book (edition) | | — _ ; COLORADO GEM TRAILS AND MINERAL GUIDE ! ■ : ' BOOKS BY RICHARD M. PEARL Colorado Gem Trails...Trails and Mineral Guide Colorado Rocks, Minerals, Fossils America’s Mountain: Pikes Peak and the Pikes...Nature As Sculptor: A Geologic Interpretation of Colorado Scenery Guide to Geologic Literature Popular Gemology...Gemology Mineral Collectors Handbook Colorado Gem Trails The Art of Gem Cutting (With Dr. H. C. Dake)...Dake) * RICHARD M. PEARL ★ COLORADO GEM TRAILS AND MINERAL GUIDE ★ SKETCH MAPS BY MIGNON WARDELL PEARL |  | | 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 (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 |  | | Report (volume) | | Wilderness Area, Eagle, Pitkin, and Lake Counties, Colorado COLORADO • Mineral Resources of the Holy Cross...Wilderness Area, Eagle, Pitkin, and Lake Counties, Colorado By ALAN R. WALLACE, GREGORY K. LEE, and DAVID...Wilderness Area, Eagle, Pitkin, and Lake Counties, Colorado by Alan R. Wallace ... [et al.]. p. cm.-(U.S....no.: I 19.3:1879 1. Mines and mineral resources-Colorado-Holy Cross Wilderness. 2. Holy Cross Wilderness...National Forests, Eagle, Pitkin, and Lake Counties, Colorado. This area was established as a wilderness area |  | | Report (issue) | | 15-Minute Quadrangle, Eagle and Summit Counties, Colorado By OGDEN TWETO and THOMAS S. LOVERING G E 0 L...PAPER 9 56 Prepared in cooperation with the Colorado Mining Industrial Development Board Geology of the...the region surrounding a major zinc mining district and the Vail recreational area, with emphasis on the...and Mississippian Systems ........ .. ........ . Chaffee Group .................................. . Parting.... . . . . In pocket Index map of west-central Colorado showing geographic setting of the Minturn quadrangle |  | | Journal (article/letter/editorial) | | secondary phosphate minerals. Although some pegmatite mining for feldspar still continues (Jacobson 1994). the...the number of mines worked tor bery 1. muscovite, col ti mhite-tantalite. ambl ygonite, spodumene, and...except for the Homestake mine, which has operated for more than 120 years, most mining in the area peaked...and fewer chances to obtain any. However, some mining, mineral exploration, and mineral collecting continues...FiridofGt~rnSphultirite ut IIIP Bulinut Zinc Mine, St. Luwrence County, tditor of NPW b r k ” unrl iipptwwl |  | | Report (volume) | | 2600 corridor, 18th and C Sts., NW. • DENVER, Colorado--Federal Bldg., Rm. 169, 1961 Stout St. • LOS...ROLLA, Missouri--1400 Independence Rd. • DENVER, Colorado--Map Distribution, Bldg. 810, Federal Center •...Geochemistry of the Pitch Uranium Mine Area, Saguache County, Colorado By j. THOMAS NASH Description and...geochemistry of the Pitch uranium mine area, Saguache County, Colorado. (U.S. Geological Survey bulletin...3:1797 1. Geology-Colorado-Saguache County. 2. Uranium ores-ColoradoSaguache County. I. Title. II. Title: |  | | Report (issue) | | Pass Districts, Saguache and Gunnison Counties, Colorado U.S. GEOLOGICAL SURVEY PRO FESS I 6N A L P A PE...Bldg., 2600 corridor, 18th and CSts.,NW. DENVER, Colorado-Federal Bldg., Rm. 169, 1961 Stout St. LOS ANGELES...ROLLA, Missouri-1400 Independence Rd. DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center FAIRBANKS...Pass Districts, Saguache and Gunnison Counties, Colorado By JERRY C. OLSON U.S. GEOLOGICAL SURVEY PROFESSIONAL...Pass districts, Saguache and Gunnison Counties, Colorado. (U.S. Geological Survey professional paper ; |  | | 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 |  | | Journal (article/letter/editorial) | | at 14:35 04 June 2016 New York City, New York County, New York State T he minerals of the garnet group...crystals are severely flattened when included in muscovite. Almandine is one of fifteen minerals in the garnet...representative of a garnet from Deshong’s quarry, Delaware County, Pennsylvania, that can barely be considered almandine... kyanite, andalusite, sillimanite, chlorite, muscovite, biotite, and the plagioclase, amphibole, and...found at several mines near Topsham, Sagadahoc County, Maine, particularly the Standpipe Hill quarry |  | | Report (issue) | | Dolomite: host for uranium at the Pitch Mine, Saguache County, Colorado by J. Thomas Nash Open-File Report...location of Pitch Mine.............3 map of the Pitch Mine area.................7 Pitch Mine area...........column in the Pitch Mine area...........5 Petrochemical data for carbonate rocks, Pitch Mine area.........37...Dolomite: host for uranium at the Pitch mine, Saguache County, Colorado by J. Thomas Nash ABSTRACT Newly...Newly documented uranium ore in the Pitch Mine occurs chiefly in brecciated Mississippian Leadville Dolomite |  | 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) | | Basement in Colorado GEOLOGIC A I, Rock Units of the Precambrian Basement in Colorado By OGDEN TWETO...TWETO GEOLOGY OF THE PRECAMBRIAN BASEMENT IN COLORADO U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1321-A...igneous rocks in outcrop and the buried basement in Colorado UNITED STATES GOVERNMENT PRINTING OFFICE...1912-1983 Rock units of the Precambrian basement in Colorado. (Geological Survey Professional Paper ; 1321-A)...Geology, Stratigraphic Pre-Cambrian. 2. Geology Colorado. QE653.T9 1986 551.7'1'09788 I. Title. For sale |  | | Journal (article/letter/editorial) | | Mineralization Associated with the Homestake Porphyry Intrusive Complex, New World District, Montana TODD W. JOHNSON†...Reno, Nevada 89557 Abstract The Miller Creek, Homestake, and Daisy Pass resources contain 7,406,260 metric...the 41 Ma Homestake intrusive complex within the New World district near Cooke City, Park County, in south-central...south-central Montana. The Homestake intrusive complex consists of numerous dacitic, porphyry intrusive...and breccia is laterally zoned relative to the Homestake intrusive complex from narrow zones of proximal |  | | Report (issue) | | Professor Edwin H . Oshier, Head of the Department of Mining Engineering, made the photographs included in this...7 Bibliography . . . . . 229 Appendix: 252 Mine Index iii NOTATIONS AND ABBREVIATIONS CHEMICAL...Geological Survey in Washington, D. C., or Denver, Colorado, or from the Department of Geology and Geological...Zinnwaldite Phlogopite Glauconite Kaolinite Talc Muscovite (Sericite) (Fuchsite) Montmorillonite lliite...prospects in the lower Ludlow lignites. Harding County: 1. Abemathyite has been identified as a component |  | | Book (volume) | | ...........................................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 .................................... |  | | Journal (article/letter/editorial) | | A PART OF THE NORTHERN BLACK HILLS AND THE HOMESTAKE MINE, LEAD, SOUTH DAKOTA BY JAMES A. NOBLE AND JAMES...Sedimentary rocks Metamorphic zoning Poorman formation Homestake formation Ellison formation Northwestern formation...the metamorphic zones in those rocks in the Lead district 941 2. Photomicrographs of typical sections of...of metamorphic rocks from the Lead district 974 3. Photomicrographs of special features in the metamorphic...metamorphic rocks of the Lead district 975 941 942 NOBLE AND HARDER—STRATIGRAPHY AND METAMORPHISM, SOUTH |  | | Report (issue) | | 15-minute Quadrangle, Pitkin and Gunnison Counties, Colorado By BRUCE BRYANT GEOLOGICAL SURVEY PROFESSIONAL...A study of an area at the intersection of the Colorado mineral belt with the west flank of the Sawatch...Counties, Colorado (Geological Survey Professional Paper 1073) Bibliography: p. 123 1. Geology Colorado Aspen...Aspen region. 2. Mines and mineral resources Colorado Aspen region. I. Title. II. Series: United States...Porphyritic quartz monzonite ......................... Muscovite-biotite granite............................. Quartz |  | | Report (issue) | | Geology in the Leadville 30-Minute Quadrangle, Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 726-C...Geology in the Leadville 30-Minute Quadrangle, Colorado By OGDEN TWETO and J. E. CASE GEOPHYSICAL FIELD...geophysical data on the most productive part of the Colorado mineral belt UNITED STATES GOVERNMENT PRINTING...---------------------------------Precambrian Homestake shear zone ____________________ _ Laramide and...valleY----------------------------· Anomalies related to the Homestake shear zone ........ . Anomalies along the Sawatch |  | | Report (issue) | | Hpmestake Gold Mine, An Early Proterozoic lron-F<;,>rmation-Hosted Gold Deposit, Lawrepce County, South Dakota...G-84 • DENVER, Colorado-Federal Bldg., Rm. 169, 1961 Stout St. • LAKEWOOD, Colorado-Federal Center...The Homestake Gold Mine : an early Proterozoic iron-formation-hosted gold deposit, Lawrence County, South...3:1857-J 1. Gold ores-South Dakota-Lawrence County. 2. Homestake Mine (S.D.) 3. Geology, Stratigraphic-Proterozoic...The Homestake Gold Mine, An Early Proterozoic Iron-Formation-Hosted Gold Deposit, Lawrence County, South |  | | Catalog/List | | Fairfield County, Branchville White xlline with cymatolite, good study ... New Mexico Taos County, near Dixon...cerium aluminum silicate California Los Angeles County, Pacoima Canyon Large black tabular crystals in...iron silicate ACTINOLITE California San Bernardino County, Wrightwood Green prismatic crystalline mass ....sodium and iron California San Benito River, Gem mine Black prismatic xls imbedded in syenite CROSSITE...Sodium iron silicate California San Benito County, Gem mine Compact blue-gray mass with natrolite ... |
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Homestake Mine, Turret Mining District, Chaffee County, Colorado, USA