 | | 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...coarse grained microcline-plagioclase-quartz-muscovite rock in pods and dikes as wide as about 25 m; |  | | 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 |  | | 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) | | 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 (issue) | | GEOLOGICAL SURVEY Locatable Mineral Reports for Colorado, South Dakota, and Wyoming provided to the U.S.............................................. 1 COLORADO ................................................Complete citations are provided on the figures.] COLORADO Gunnison and White River National Forests Mountain...Coronado Groups (USGS, 1997a)......... 46-49 Part of Colorado Springs - Castle Rock area (Trimble and Machette......... 50 Geologic map of the St. Peters Dome district (Steven, 1949) ..................... 51 SOUTH |  | | 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) | | A llgood & J. Pradenas Colorado Fam ous m ineral localities: Breckenridge, C olorado . . . 51 by E..." collected in 1865 at the Grit mine, El Dorado County, California, by Jules Fricot and donated to the...localities not mentioned in G old-I. . . Australia, Colorado and Appalachia, for example. It seems that we...gold. Genne and Robert Allgood (mining geologists for the Sonora Mining Company, right in the Mother Lode...occurrences in Tuolumne County, Peter Bancroft provides a report on a new specimen mining opera tion under |  | 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...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...dating of the Climax and Gold Meadows stocks, Nye County, Nevada, by C. W. Naeser and Florian Maldonado...anomaly is more or less coincident with part of the Colorado lineament described by Warner (1978). Warner presents |  | | 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 |  | | 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 |  | | 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...of the Leadville 30-minute quadrangle, central Colorado.... -----------------------------------------...____________ ln pocket FIGURE 1. Index map of Colorado __________________________________________________ |  | 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) | | GEOLOGICAL SURVEY Locatable Mineral Reports for Colorado, South Dakota, and Wyoming provided to the U.S.............................................. 1 COLORADO ................................................San Isabel and White River National Forests Lake County Land Exchange Offer (Iocmin40) ......................... 47 White River National Forest Dillon District Land Exchange Joint Venture (Iocmin38) ......................... 138 FIGURES OR ATTACHMENTS COLORADO Pike National Forests Shepard and Associates Land |  | | 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) | | 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 (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 (article/letter/editorial) | | GEOLOGIC MAP OF HAROLD D. ROBERTS TUNNEL AREA, COLORADO Adapted and modified from T. S. Lovering and E...volume 73 ERNEST E. WAHLSTROM University of Colorado, Boulder, Colo. V. Q. HORNBACK Board of Water...2015 Geology of the Harold D. Roberts Tunnel, Colorado: West Portal to Station 468+49 Abstract: The Harold...Grant, Colorado. The tunnel passes beneath the Continental Divide at the crest of the Colorado Front Range...showing location of the Harold D. Roberts Tunnel, Colorado 2. Columnar section, Station 9 + 46 to Station |  | | Report (issue) | | 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..._____________________ _ Copper deposits in Jefferson County __ _ F. M.D. property _____________ _ Malachite...Cherry Creek and Douglas County placers _________________________ _ Mining districts in the mineral belt |  | | 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 (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 |  | | 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 (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 |  | | 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 |  | | Book | | EXPLORATION SELECTION OF REGION SELECTION OF DISTRICT o o o t> o o [ 1 reconnaissance exploration...of magnitude: region: greater than 5000 km2 ; district: 500-5000 km 2 ; area: 5—50 km 2 ; target: less...using existing knowledge. For example, in a known mining area a particular lithological structural unit...between a region and a district is necessarily somewhat arbitrary. In general a district should be regarded...mineralization will usually guide the selection of a district, and the choice may be dictated by the type of |  | | 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 ........... |
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