 | | 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) |
| 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 |
 | | 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 (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 |
 | | 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 (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) |
| secondary phosphate minerals. Although some pegmatite mining for feldspar still continues (Jacobson 1994). the...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...and additions. Mlneral Index by Counties Brule County Elm Creek, IS mi. S. of Chamberlain, near junction |
 | | 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 (volume) |
| Del Norte County; Trinity River, Trinity County; Spanish Creek and Gopher Hill, Plumas County; Placerville...Dorado County; Cherokee Flats, Yankee Hill,and Oroville, Butte County; French Corral, Nevada County; Indian...Indian Gulch and Volcano, Amador County; and Alpine Creek, Tulare County. Other western localities are:...Diamond Basin, Ada County, Idaho; Curry County, Oreg.; and Nelson Hill, near Glacier County, Mont. The Great...Pierce County; Oregon, Dane County; Kohlsville, Washington County; Saukville, Ozaukee County; Eagle, |
 | | Journal (article/letter/editorial) |
| PL. SEPTEMBER 1948 HIGH-POTASH DIKES IN THE HOMESTAKE MINE, LEAD, SOUTH DAKOTA BY JAMES A. NOBLE CONTENTS...northern Black Hills Rhyolite dikes in the Homestake Mine Other occurrences of high potash dikes Origin...Origin of the high potash rhyolite dikes in the Homestake Mine References cited Page 927 927 928 930 934...Photomicrographs of typical sections of rhyolite from the Homestake mine Page 933 934 936 Facing page 930 ABSTRACT...area of about 10-mile radius with Lead and the Homestake Mine at the center. Five rock types are represented: |
 | | Report (issue) |
| endorsement by the U.S. Government. 'Denver, Colorado 1995 CONTENTS Geoenvironmental models of mineral..... 70 Porphyry Cu deposits, by L.J. Cox, M.A. Chaffee, D.P. Cox, and Douglas P. Klein .................mineralized areas prior to mining, and conditions that result from mining and mineral processing. Other...as climate, and anthropogenic factors (including mining and mineral processing methods) mostly modify the...exploration, and assessment of abandoned mine lands and mine-site remediation. This compilation presents |
 | | 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...Group (Orthoclase) (Microcline) (Anorthoclase) (Albite) (Oligoclase) (Andesine) (Labradorite) (Bytownite)...prospects in the lower Ludlow lignites. Harding County: 1. Abemathyite has been identified as a component |
 | | 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 |
 | | 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 .................................... |
 | | 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...Ordovician rocks................................ Chaffee Group....................................... Parting |
 | | 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) |
| pegmatites of the CusterKeystone area, to the Homestake gold mine in Lead, to golden barite-bearing concretions...ide Co. Pennington Co. RAPID 'CITY MINES 1. Homestake 2. Bob Ingersoll 3. Don Patch 4. Etta 5. Hugo...staking of the original Homestake claim in April of 1876. The Homestake mine has since grown to be the...the largest gold mine in the western hemisphere. The Homestake mine has not only produced many gold specimens;...ter, have also been recovered. In addition to Homestake, several other mines in the northern Black Hills |
 | | Report (issue) |
| gold deposits ............................. . Homestake deposit ............................ . Other deposits...enriched in gold might locally become more like the Homestake Formation beneath the cover of Paleozoic rocks...has come from Precambrian ore bodies in the Homestake mine at Lead in the northern Black Hills. Most of...aimed at finding a new deposit resembling the Homestake in the Precambrian, but discovery in the Deadwood...deposits and the Homestake deposit are somehow related. Current opinion is that (1) the Homestake ore is mainly |
 | | Catalog/List |
| of Crystallized Gold from the famed Eagle’s Nest Mine in California A superb Crystallized “Leaf” Gold...gemstone Amethyst to come from the famed Four Peaks Mine in Arizona A sharp and complicated Crystallized...Crystallized Silver with Copper from the famed Wolverine Mine in Michigan A “classic” Rhodochrosite with associated...associated Pyrite and Quartz from the Sweet Home Mine in Colorado An unusually massive and extremely colorful...colorful, Smithsonite from the iconic Kelly Mine in New Mexico A ‘gem’ quality specimen Tanzanite crystal in |
 | | Report (volume) |
| GUNNISON COUNTY, COLORADO BY JOHN W. VANDERWILT Prepared in cooperation with the STATE OF COLORADO, COLORADO...COLORADO METAL MINING FUND, COLORADO MINING ASSOCIATION and GEOLOGICAL SURVEY BOARD OF COLORADO UNITED STATES...____________________________________________ Devonian (Chaffee formation) _ ____________________________ . De...Quartz diorite_--------_______-________.._.___.__ Albite granite._---_____-____._._._.______________. Granodiorite-...margin toward center.___-__-____.__..__._ Origin of albite granite and other rock varieties___________ Mode |
 | | Report (volume) |
| BULLETIN 338 THE IRON ORES OF THE IRON SPRINGS DISTRICT SOUTHERN UTAH BY C. K. LEITH AND E. C. HARDER............................................... Homestake limestone........................................................................ Bull Valley district.................................................XV. Map of mining claims in the Desert Mound and Iron Springs areas, Iron Springs district................. 66 XVI. Map of mining claims of the Iron Mountain area, Iron Springs district .................. |
 | | Catalog/List |
| ....... . ALBITE Sodium aluminum silicate CLEA VE LANDITE Connecticut Fairfield County, Branchville...with cymatolite, good study ... New Mexico Taos County, near Dixon Nearly pure white xlline lamellar mass...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 |
 | | 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 |
