 | | Report (issue) | | The Geological Story of the Blue River Valley, Colorado, and Its Surrounding Mountains Circular 1400...The Geological Story of the Blue River Valley, Colorado, and Its Surrounding Mountains By Karl S. Kellogg...mines—The geological story of the Blue River valley, Colorado, and its surrounding mountains: U.S. Geological...the geological story of the Blue River Valley, colorado, and its surrounding mountains / by Karl S. Kellogg...978-1-4113-3966-8 (pbk.) 1. Geology--Colorado--Blue River Valley. 2. Mountains--Colorado. I. Bryant, Bruce, 1930- |  | | Report (issue) | | Geologic Map of the Dillon Quadrangle, Summit and Grand Counties, Colorado By Kari S. Kellogg1 Open-File Report... Geologic Map of the Dillon Quadrangle, Summit and Grand Counties, Colorado By Karl S. Kellogg This database...valley margins and tributaries of Blue River near Breckenridge, approximately 7-10 km south of quadrangle (Ransome...The total thickness of the Dakota Group in the Breckenridge area, about 10 km south of quadrangle, is 52-69...irregular-shaped stocks. Accessory minerals are zircon, opaque minerals, apatite, + muscovite (locally |  | | Report (issue) | | GEOLOGY AND ORE DEPOSITS OF THE BRECKENRIDGE MINING DISTRICT, COLORADO BY T. S. LOVERING UNITED STATES...-----Location and topography _______________ History of mining..__-._..-_-..----..__ General geology___...__-_--_--_..._ Criteria of enrichment in the Breckenriclge district......__._.._-._-..._.__.___-_._ Enrichment of...ILLUSTRATIONS Page PLATE 1. Map of part of the Breckenridge district, Colorado, showing some of the principal mine...In pocket 2. Geologic map of part of the Breckenridge district._____-__--__--_---_____________--_--------_____-__ |  | | Report (volume) | | Tenmile Range, Summit County Colorado GEOLOGICAL SURVEY Prepared in cooperation with the Colorado State Metal...Metal Mining Fund Board BULLETIN 1162-D A Geology of the Northern Part of the Tenmile Range, Summit...Summit County Colorado By MAX H. BERGENDAHL CONTRIBUTIONS TO ECONOMIC GEOLOGY GEOLOGICAL SURVEY BULLETIN...1162-D Prepared in cooperation with the Colorado State Metal Mining Fund Board STATES GOVERNMENT PRINTING...THE NORTHERN PART OF THE TENMILE RANGE, SUMMIT COUNTY, COLORADO BY MAX H. BERGENDAHL ABSTRACT The Tenmile |  | Peterman, Z.E., Bunker, C.M., Bush, C.A., Bryant, Bruce, Marvin, R.F., Naeser, C.W., Mehnert, H.H., Izett, G.A., Obradovich, J.D., Cebula, G.T. (1981) Shorter contributions to isotope research in the Western United States, 1980. Professional Paper 1199ae. US Geological Survey doi:10.3133/pp1199ae | Report (issue) | | of Igneous Rocks in the South Park-Breckenridge Region, Colorado, and their Relation to the Tectonic...HARALD H. MEHNERT Potassium-Argon and Fission-Track Zircon Ages of Cerro Toledo Rhyolite Tephra in the Jemez...Dating of the Climax and Gold Meadows Stocks, Nye County, Nevada By C. W. NAESER and FLORIAN MALDONADO ...of igneous rocks in the South Park-Breckenridge region, Colorado, and their relation to the tectonic........... (D) Potassium-argon and fission-track zircon ages of Cerro Toledo Rhyolite tephra in the Jemez |  | | 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 |  | | Journal (issue) | | - - - - - - - - - - - Mineral Collections 1n Colorado A Supplement to The Mineralogical Record November-December..."Smithsonian packet," Smoky Hawk claim, Florissant, Colorado. Collected in 2008; Dorris Family collection;...certificates for mines in the Cripple Creek District, Colorado, in 1898 and 1901. Sponsorship: This special...Collecting in Colorado The Collections: Mel & Pam Bersch Ryan Bowling Ralph Clark Colorado School of Mines...Kile Brian Kosnar Bryan & Kathryn Lees Ian Merkel Mining Hall of Farne, Steve Whittington curator Nick North |  | Wallace, A.R., Ludington, Steve, Lovering, T.G., Campbell, D.L., Case, J.E., Grauch, V.J.S., Knepper, D.H. (1988) Leadville 1 degree x 2 degrees Quadrangle, Colorado; a pre-assessment. Open-File Report Vol. 1988 (88-74) US Geological Survey doi:10.3133/ofr8874 | Report (issue) | | GEOLOGICAL SURVEY Leadville I°x2° quadrangle, Colorado: a pre-assessment by Alan R. Wallace , Steve...standards and stratigraphic nomenclature. Denver, Colorado -Menlo Park, California CONTENTS Page Preface............ 18 19 20 TABLES Table 1. 2. 3. 4. Mining districts in the Leadville quadrangle................................. Base- and precious-metal mining areas......................... 4 11 16 17 PREFACE...the Leadville I°x2° quadrangle in west-central Colorado under the Conterminous United States Mineral Resource |  | Collins, Donley S., Cobban, Robert R., Foord, Eugene E., Murphy, Jack A. (1989) Bibliography for update and revision of U.S.G.S. Bulletin 1114, Minerals of Colorado -- a 100 year record, by Edwin B. Eckel, Part A - Paper copy --Bibliography data file disks. Open-File Report Vol. 1989 (89-206) US Geological Survey doi:10.3133/ofr89206a | Report (issue) | | Survey Denver, Colorado Department of Geology, Denver Museum of Natural History Denver, Colorado NOTE FOR...revision of U.S.G.S. Bulletin 1114, Minerals of Colorado A 100 year record, by Edwin B. Eckel By Donley...Prepared in cooperation with Friends of Mineralogy - Colorado Chaptar, and the Denver Museum of Natural History...references dealing with the mineralogy of the state of Colorado. It is part of a more than 10 year effort to update...and revise U.S.G.S. Bulletin 1114, Minerals of Colorado: A 100 year record, by Edwin B. Eckel (1961). |  | | Report (issue) | | the major product (as at Climax and Henderson, Colorado, and Questa, New Mexico), or is a co- or byproduct...XVT XVA XWA XWI XWY ALASKA ARIZONA CALIFORNIA COLORADO GEORGIA IDAHO MAINE MISSOURI MONTANA NEVADA NEW...of the Pine Grove-B la*n Mountain area. Beaver County, Utah: U. S. Geological Survey Open-File Report...wah wah Mountains, Beaver County, Utah (abstract): American Institute of Mining, Metallurgical and Petroleum...deposits of the Mount Antero region, Chaffee County, Colorado: U.S. Geological Survey Bulletin 982-D, p |  | | Report (volume) | | Ore Deposits of the Upper Blue River Area Summit County Colorado • By QUENTIN D. SINGEWALD . GEOLOGICAL...cooperation with the Colorado Geological Survey Board and the Colorado Metal Mining Fund UNITED STATES...faults ____________ _ Major faults north of Breckenridge ___________ ,_______________ _ Transverse heli...and sections of the upper Blue River area, Summit County, Colo ______________________________ In pocket...Diagrammatic sketch of area between Alma and Breckenridge, showing alternative possible location of the |  | | Report (volume) | | Forest and the Dillon Ranger District of the Arapaho National Forest, Colorado U.S. GEOLOGICAL SURVEY BULLETIN...Forest and the Dillon Ranger District of the Arapaho National Forest, Colorado By MARGO I. TOTH, ANNA B....Forest and the Dillon Ranger District of the Arapaho National Forest, Colorado / by Margo I. Toth ... [et...mineral resources Colorado White River National Forest. 2. Mines and mineral resources Colorado Arapaho National...National Forest. 3. Geology Colorado White River National Forest. 4. Geology Colorado Arapaho National Forest |  | | Report (issue) | | Series 30 Bibliography and Index of Colorado Geology, 1984-1989 Colorado Geological Survey Department of...Resources Denver, Colorado 1990 Information Series 30 Bibliography and Index of Colorado Geology, 1984-1989...Institute under contract to the Colorado Geological Survey Colorado Geological Survey Department of...of Natural Resources Denver, Colorado 1990 ii FOREWORD In recognition of the need to more effectively...published literature on the state's geology, the Colorado Geological Survey is pleased to release Information |  | | Report (issue) | | General Geology of the Harold D. Roberts Tunnel, Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 831-B General... General Geology of the Harold D. Roberts Tunnel, Colorado By CHARLES S. ROBINSON, LAWRENCE A. WARNER, and...ENGINEERING GEOLOGY OF THE HAROLD D. ROBERTS TUNNEL, COLORADO GEOLOGICAL SURVEY PROFESSIONAL PAPER 831-B...along the Roberts Tunnel line, Park and Summit Counties, Colorado..............In pocket 1. Strike-frequency...ROBERTS TUNNEL, COLORADO GENERAL GEOLOGY OF THE HAROLD D. ROBERTS TUNNEL, COLORADO By CHARLES S. ROBINSON |  | | Report (issue) | | INTRUSIVE ROCKS OF COLORADO By Edward J. Young Prepared in cooperation with The Colorado Mining Industrial Development...Development Board and the Colorado Geological Survey This report is preliminary and has not been edited...intrusive rocks of Colorado » » » *«» In pocket Laramide-Tertiary intrusive rocks of Colorado By Edward...intrusive rocks in the State of Colorado, geologic age localities, mining districts, localities of chemically...This information is shown on the State map of Colorado (scale 1:500,000) accompanying this report. In |  | | Journal (issue) | | Bob Jones THE GOLDEN HISTORY OF BRECKENRIDGE 36 This legendary Colorado gold camp is full of attractions...Gold Rush (circa 1849-52), attest to the extent of mining activity and richness of the North Fork of the...“California” from the State menu, and “Placer” from the County list. Press Enter and click on the Stevens Trail...pack mules traveling between the then-bustling mining town of Iowa Hill and the connection to the Transcontinental...uphill hiking on the way out after a long day of mining. January 2018 The Stevens Trail sign is visible |  | | Report (issue) | | high from Eagle's Nest mine in Placer County, Caifornia, USA Collection Marlin Zinn; photo Jeff Scovil...International, LLC P.O. Box 263, East Hampton, CT 06424, USA Phone 1.860.267.1512; fax 1.860.267.7225 www.lapisint...Lapis International, LLC East Hampton, Connecticut USA Collection 'Alan Table of Contents What Is Gold...First Gold Rush: Gold Fever in the Southeastern USA . . . . . . . .P. 16 R. Chris Tacker California and.... . . . . . . . . .P. 86 Ed Raines Colorado Gold-Gold in Colorado . . . . . . . . . . . . . . . . . |  | | Report (volume) | | 2 r iQ70 GORE RANGE-EAGLES NEST AND VICINITY, COLORADO GEOLOGICAL SURVEY BULLETIN 1319-C f* MINERAL...RANGE-EAGLES NEST PRIMITIVE AREA and VICINITY, COLORADO Crest of Gore Range and head of middle fork...Nest Primitive Area and Vicinity, Summit and Eagle Counties, Colorado By OGDEN TWETO and BRUCE BRYANT,...appraisal, by Frank E. Williams _______________ Mining claims _______________________________ Economic...Sketch map showing major structural features and mining districts in vicinity of Gore Range Primitive Area |  | | Report (issue) | | _________________ ___. Nevada ___________ Elko County. - ______ ... _ Star mine, Harrison Pass _____... Tuscarora Range _____ _ ._. ________ Humboldt County Golconda manganese-tungsten depositNorth workings...Lincoln County__-__-----_-----_-----___ Tern Piute district....... __ ___ ... Mineral County____-_______________...naine________________ Mine near Green Talc mine. _____ Nye County ____ _._-___-________-___ Gabbs area __ _____________________..._____ Brucite and magnesite deposits. __ Pershing County __ Rocks in the West Humboldt Range ..~ Limerick |  | | Report (issue) | | Carbonate-Hosted Sulfide Deposits of the Central Colorado Mineral Belt DAVID W . BEATY, GARY P . LANDIS...host-rock bedding. Black Cloud mine, Leadville district. Sherman-type ore (bottom) in paleokarst breccia...with ferroan dolomite. rv1oose mine, North Alma district. Photographs b)' \Villiarn Sacco, Peabody Museum...Carbonate-hosted sulfide deposits of the central Colorado mine ral belt: Introduction, general discussion...Regional geologic and tectonic setting of the central Colorado mineral belt . . . . Alan R. Wallace Paleozoic |  | | Book | | regarding internal and external communications by the mining industry. The fact that our technological society...ahead. But is the world's population ready? Is the mining industries public image high enough to assure adequate...appears today to be a sobering lack of general mining awareness by the public. Few people realize that...taken to discern the public's attitude towards mining. A typical response might be "My lifestyle is unaffected...slightly affected by mining production." John Q. Public might well answer that 4 mining did not affect his |  | | Report (issue) | | limestone or dolomite. It is a useful ore guide in many mining districts UNITED STATES GOVERNMENT PRINTING OFFICE........... Characteristics of jasperoid in major mining districts of the United States ..................................................... Tri-State district, Oklahoma, Kansas, and Missouri ................Clifton-Morenci district, Arizona .............................. Bisbee (Warren) district, Arizona .......Ely (Robinson) district, Nevada .............................. Leadville district, Colorado ........... |  | | Report (volume) | | Meetings. Washington, D. C. American Institute of Mining and Metallurgical Engineers: Contributions, nos...Section of Bulletin, 1933, 1934. New York. See also Mining and Metallurgy. American Journal of Science, 5th...Canadian Institute of Mining and Metallurgy: Transactions, vols. 35, 36; Canadian Mining and Metallurgical...special no. 11 (nos. 1-6). Ottawa, Ontario. Canadian Mining Journal, vols. 54, 55. Gardenvale, Quebec. Carnegie...Pa. Colorado Museum of Natural History: Proceedings, vol. 13 (nos. 1-3). Denver, Colo. Colorado Scientific |  | | Journal (article/letter/editorial) | | GEOLOGY OF THE McCOY AREA, EAGLE AND ROUTT COUNTIES, COLORADO BY HENEY F. CONNER CONTENTS Page Early extrusive...Red siltstones overlying the McCoy forCentral Colorado Basin. The Precambrian crystal- mation conformably...1215 ABSTRACT 1216 H. F. DONNER—McCOY AREA, COLORADO The sedimentary formations were deformed during...was formed some 500 feet below and into this the Colorado River has cut another 500 feet. and faulted and...northwest quarter of Colorado, about 95 miles west of Denver (Figure 1). The Colorado River crosses the |  | | 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...Description of principal mines-Continued Boulder County-Continued Other areas __________________________...Moore______________________________ Clear Creek CountY------------------------------------------Idaho...__________ ------_____________________ 71 72 Gilpin CountY-----------------------------------------------Central |
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