| | Report (issue) | SURVEY Geologic setting of the Leadville mining district, Lake County, Colorado by Alan R. Wallace1 Open-File...JDenver, Colorado PREFACE This geologic summary of the Leadville, Colorado, mining district is part...to the California Gulch Superfund Site in Leadville, Colorado. Under the agreement, the USGS provides expert...the geology and mineral deposits of the Leadville mining district. The report, a summary based upon the.............................. 1 Brief history of mining .............................................. | | | Report (issue) | GEOLOGY AND ORE DEPOSITS OF TILE LEADVILLE MINING DISTRICT, COLORADO BY S. F. EMMONS, J. D. IRVING,...High terrace gravel_ 15 Low terrace gravel_ _ 17 "Lake beds"_ 17 Character and distribu17 tion _ Deformation...Relation to mineralization_31 Geologic age _ 31 Leadville limestone (" Blue " limestone) _ _ 32 Name_ 32...anticline _ Origin of the Iron-Mikado fault 61 Colorado Prince anticline _ group _ 95 61 Mosquito Gulch...eastern part of the district 95 62 Kokomo syncline_ Faults southeast_ of _ Leadville 62 the_ Fryer Hill | | | Report (issue) | Features as Related to Geology in the Leadville 30-Minute Quadrangle, Colorado GEOLOGICAL SURVEY PROFESSIONAL...Features as Related to Geology in the Leadville 30-Minute Quadrangle, Colorado By OGDEN TWETO and J. E. CASE...geophysical data on the most productive part of the Colorado mineral belt UNITED STATES GOVERNMENT PRINTING...anomaly map and sections of the Leadville 30-minute quadrangle, central Colorado.... ---------------------...pocket 2. Aeromagnetic map and profiles of the Leadville 30-minute quadrangle ________________________ | | | Journal (article/letter/editorial) | Herkimer Diamond Mines, Inc., New port, Herkimer County, New York. Jeffrey B. Fast specimen and photo....cleavelandite, 49er Pocket, Oceanview mine, Pala district, San Diego County, California. Bill Larson specimen, Jeff...September/October: Gold, Mockingbird mine, Mariposa County, California. Collector’s Edge Minerals, Inc., specimen...Crossroads, Wilkes County, Georgia. Lisa Bennett specimen, Jeff Scovil photo. A Acanthite, Colorado, 442; Utah...Cochabamba, Bolivia, 119; Connecticut, 158 Anglesite, Colorado, 442; Montana, 27; Utah, 57 Vo l u m e 8 3 Anhydrite | | | Report (issue) | Bldg., 2600 corridor, 18th and CSts.,NW. DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. LOS ANGELES...Center, Rm. 1C402,12201 Sunrise Valley Dr. SALT LAKE CITY, Utah-Federal Bldg., Rm. 8105,125 South State...ROLLA, Missouri-1400 Independence Rd. DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center FAIRBANKS...Replacement Deposits Part II Gold in the Tintic Mining District, Utah By HALT. MORRIS Gold Deposits in the...Bird Mining Districts, San Juan Mountains, Colorado By FREDERICKS. FISHER Gold in the Alma Mining District | | | 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...minerals of the Great American Rift in New Mexico and Colorado. Great American Rift is the name we use for a | | | Report (volume) | San Isabel National Forest, South-Ce tral Colorado COLORADO An Assessment of the Mineral Resource...the San Isabel National Forest, South-Central Colorado By Richard B. Taylor, Rebecca j. Stoneman, and...structures 12 Mineral resources-Locatable minerals 12 Mining and exploration history 12 Metals 13 Industrial...the San Isabel National Forest, south-central Colorado Mineral resource potential map of the San Isabel...Isabel National Forest, south-central Colorado FIGURES 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. | | | Journal (issue) | ........................... 3 Legendary Leadville, Colorado ...........................................BACKBENDER'S GAZETTE T FEBRUARY 2015 Legendary Leadville, Colorado by Dr. Nathalie Brandes Professor of Geosciences...Houston Gem & Mineral Society he rocks around Leadville, Colorado host one of the largest lead-zincsilver deposits...rich deposits. Leadville, Colorado in November 2013. Photo by P. Brandes Leadville is located on the...fir (Wallace, 1993). The oldest rocks in the Leadville area are Proterozoic (1.7 Ga) granite that is | | | Journal (article/letter/editorial) | DEPOSITS IN AND ADJOINING THE LEADVILLE DISTRICT, G. F. LOUGHLIN COLORADO. • AND CHAS. H. BEHRE, JR..................................... the Leadville district :2:2I .......................... Pyrometasomaticand............................... :239 Weston Pass district ................................. :240 Structural...:244 Comparisonwith certain other districts in Colorado, New Mexico, Idaho, and Utah ...................State Geological Survey Board, and the Colo. Metal Mining Fund. 2 Emraons, S. F., Irving, J. D., and Loughlin | | | Report (issue) | Carbonate-Hosted Sulfide Deposits of the Central Colorado Mineral Belt DAVID W . BEATY, GARY P . LANDIS...LANDIS, AND TOMMY B. THOMPSON, EDITORS Leadville-type ore Sherman-type ore TH E ECON0t-11C GEOLOGY PUBLIS...Geology, 91-A Yale Station, New Haven, CT 06520 Leadville-type ore (top) with rod-textured pyrite in a matrix...l to host-rock bedding. Black Cloud mine, Leadville district. Sherman-type ore (bottom) in paleokarst...with ferroan dolomite. rv1oose mine, North Alma district. Photographs b)' \Villiarn Sacco, Peabody Museum | | | Journal (issue) | R. Kampf Natural History Museum of Los Angeles County George Robinson National Museums of Canada Arthur........ .................... ..... ^ B lllii Leadville.................................................SPECIMENS from the collection of the Geology Museum, Colorado School of Mines. See page 242 for a full description... All rights reserved. notes fromthej EDITOR COLORADO-III Here we are with our third special issue devoted...devoted to the mines and minerals of Colorado. As most long-time subscribers know, the first in the series | | | Journal (article/letter/editorial) | many species of minerals, especially metallic: magnetite, braunite, hausmanite, jacobsite, native lead...mountains: emerald xls, epidote xIs, adularia xls, magnetite xIs, sphene xls and others. ST. GOTTHARD Mountain...Siberia, USSR, noted mineral locality on the Baikal lake. Here occur many interesting minerals: biotite xIs...M1NERALS YAKUTIA, East Siberia, USSR, Verkhoyansk district, new discovered mineral localities; diamond, native... hausmanite, corundum, also rutile (Semiz Bug district), and other minerals. HAKKAIDO, Japan. This mineral | | | Journal (article/letter/editorial) | type occurat Leadville and Gilman, Ridge (1972, p. 406) acknowledges the problem Colorado,and at Tintic...the estimatesof temperatureof formation for Leadville classification to cross-classify the porphyrybodiesas...alterationin the carbonates)and "mesothermal"burial at Leadville during ore formation suggest (because of the alterationtype...depositsof the Leadville mining district, metasomaticallyaltered systemsseems more than Colorado: U.S. Geol...Western States (Lindgren vol.): New York, Am. Inst. Mining Metall. Petroleum Engineers, p. 537-557. 1942 | | | Journal (article/letter/editorial) | Wyoming(33) and the Gas Hills District,Wyoming (88). In the AmbrosiaLake District, New Mexico,the primaryore...INDIGENOUS ROCK OPENINGS ABOVE AN UNCONFORNiITY District or mine Capitol Reef, Utah Elk Ridge, Utah...Shirley Basin, Wyo. Gas Hills, Wyoming Ambrosia Lake, N.M. Blind River, Ontario Buchans, Nfid. Keweenaw...SoutheasternMissouri Lead District.--The lead depositsof the SoutheasternMissouri Lead District are disseminatedreplacementsin...OVERLYING COARSE CLASTIC ROCKS ABOVE AN UNCONFORMITY District or mine Ore Pb Southeastern Missouri Sullivan | | | Journal (article/letter/editorial) | University] at 01:02 21 December 2014 79 Mine, Gila County, Arizona E veryone likes blue minerals. Most...Brooksville, Hancock County, and the Lubec lead mine and prospects at Pembroke, Washington County. It has also...at the old lead mines at Middletown, Middlesex County, Connecticut; as good micromount material at the...Easthampton, Hampshire County, Massachusetts; the old Gorham (Mascot mine), Coos County, New Hampshire; as...Hill, Sussex County, New Jersey; at the Conklin quarry near Lincoln, Providence County, Rhode Island; | | | 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...Cross Wilderness Area, Eagle, Pitkin, and Lake Counties, Colorado by Alan R. Wallace ... [et al.]. p. cm...no.: I 19.3:1879 1. Mines and mineral resources-Colorado-Holy Cross Wilderness. 2. Holy Cross Wilderness...Isabel National Forests, Eagle, Pitkin, and Lake Counties, Colorado. This area was established as a wilderness | | Symons, D. T. A., Lewchuk, M. T., Taylor, C. D., Harris, M. J. (2000) Age of the Sherman-Type Zn-Pb-Ag Deposits, Mosquito Range,Colorado. Economic Geology, 95 (7) 1489-1504 doi:10.2113/gsecongeo.95.7.1489 | Journal (article/letter/editorial) | Sherman-Type Zn-Pb-Ag Deposits, Mosquito Range, Colorado D. T. A. SYMONS,†M. T. LEWCHUK,* Earth Sciences...Survey, Box 25046, Denver Federal Center, Denver, Colorado 80225 AND M. J. HARRIS Earth Sciences, University...deposits in central Colorado are hosted in dolostones of the Early Mississippian Leadville Formation. Paleomagnetic...72 Ma Pando Porphyry sill(s) and in the ~40 Ma Leadville-type Black Cloud massive sulfide deposit. Paleomagnetic...results are interpreted to indicate that the Leadville carbonates were regionally dolomitized at ~308 | | | Report (issue) | Sugar Loaf and St. Kevin Mining Districts Lake County, Colorado By QUENTIN D. SINGEWALD A CONTRIBUTION...cooperation with the Colorado State Geological Survey Board and the Colorado Metal Mining Fund Board. This..._____________________________________________ St. Kevin district.___.._...__..._________........._._.__._.._ St...vein, St. ' ' ' Kevin district. Page FIGURE 40. Index map of part of Colorado showing location of Sugar...Sugar Loaf district....__._._______.____________. 44. Map of T. L. Welsh adit, Sugar Loaf district-______________ | | | Journal (article/letter/editorial) | DEPOSITION IRON MINE, x936 AT THE No. 8 CALUMET COLORADO. • CHAS. H. BEHRE, JR., E. F. OSBORN, AND E....the abandoned iron mineat Calumet,ChaffeeCounty,Colorado,offeredan atßPresented beforethe Geological Societyof...for data; and to Mr. P. J. Schlosser,of Turret, Colorado, for locatingclaimboundariesand furnishingmaps...Hills, was madeavailablethroughthe courtesyof the Colorado Fuel and Iron Company. In •93 •, Butler and Goddard... OF DISTRICT AND ACCESS. The Calumet mine is located in T. 5 • N., R. 9 E., Chaffee County, central | | 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) | NevadaiGity —'Grass: Valley) iter ore ae ee Shasta County a eee cere asses ee avs Oe ee COlOTAMGS ee Pie...al bined 5 on jake Colorado Utah, Arizona> NewsNLexicoe se ete eaten en Colorado Plateau: sijcsces etn...possible to designate the individual mines of which a district is composed but rather that the geological conditions...conditions from one mine to another within the district are so generally the same that what is said of...Canadian Institute of Mining*and| Metallurgye a. 12ers ee ett elt hanes Engineering and Mining Journal...... | | | Report (volume) | Bulletin 779 GUIDES TO ORE IN THE LEADVILLE DISTRICT, COLORADO BY G. F. LOUGHLIN WASHINGTON GOVERNMENT...along the most important inclined shafts in the Leadville district__________ ________________ 10 2. Plan...part of the Leadville district_____________ 10 3. Map of stoped ore bodies in Leadville district_______...blanket ore bodies in different parts of the Leadville district____ 16 5. Plan showing Tucson-Maid fault..._____ 19 m GUIDES TO ORE IN THE LEADVILLE DISTRICT, COLORADO By G. F. LOUGHLIN INTRODUCTION The | | | Journal (article/letter/editorial) | Ferguson, H. G.: Gold quartz veins of the Alleghany district, California. U.S. Geol. Surv. Prof. Pap. x72:...structure and stratigraphy in the Ouray district of Colorado, and its bearing on ore deposition. Colo...structure in the Silverton and Telluride quadrangles, Colorado. Colo. Sci. Soc. Proc. x3: I35-3x4, I933. --:...control of ore deposition, Uncompahgre district, Ouray County, Colo. U.S. Geol. Surv. Bull. 9o6-E: I97-•oo...:Geology and ore deposits of the Breckenridge mining district, Colo. U.S. Geol. Surv. Prof. Pap. 176: 17-23 | | | 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 | | | Journal (article/letter/editorial) | of COLORADO ED RAINES Geology Museum Colorado School of Mines 1310 Maple Street Golden, Colorado 80401...Figure 1. Camp Bird mine, level 2, Sneffels district, Ouray County. Raines-Pettem collection, photographer...photographer unknown. B etween 1868 and 1922, Colorado produced almost 260 million pounds of copper. Nearly 100...came from the Leadville district, with another 50 million pounds mined in San Juan County (Henderson 1926)...During the twentieth century, the Gilman district surpassed Leadville in total copper production with more |
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