 | | Report (issue) | | COLORADO STATE GEOLOGICAL SURVEY BOULDER R. D. GEORGE, State Geologist BULLETIN 9 GEOLOGY AND ORE DEPOSITS...OF THE BONANZA DISTRICT SAGUACHE COUNTY COLORADO By HORACE B. PATTON 1915 DENVER,COLORADO EAMES BROTHERS...DOI: https://doi.org/10.58783/cgs.b09.vtso7767 Colorado State Geological Survey. Bulletin No. 9, Plate...rnor of Colorado LIVINGSTON FARRAND ______________________ President University of Colorado HowARD C...TRANS:\IITTAL ST.I.TE GEOLOGICAL SuRVEY, UNIVERSITY OF CoLORADO, December 2, 1916. Governor George A. Carlson |  | | Report (issue) | | GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO BY W. S. BURBANK WITH A SECTION ON...HENDERSON Prepared in cooperation with the COLORADO METAL MINING FUND UNITED STATES GOVERNMENT PRINTING...Geography _ ______________ ___-__-__ Situation of the district _ _ _________________ Topographic features. ....Previous geologic and topographic work in the district. ____ ___________._-__-______--__. Field work..._____ Pennsylvanian sedimentary rocks. _______ Kerber formation __________________ Thickness and stratigraphy |  | | Thesis/Dissertation | | THE EASTERN PART OF THE BONANZA VOLCANIC FIELD, SAGUACHE COUNTY, COLORADO By John D. Mayhew ProQuest...to the Faculty and the Board of Trustees of the Colorado School of Mines in partial ful fillment of the...Signed Golden, Colorado Date : Thesis Advisor ad of Department Golden, Colorado Date : T 1226... The eastern flank of the Bonanza volcanic field in south-central Colorado was studied primarily to determine...Precambrian and Paleozoic rocks. The oldest units, Rawley Andes !te and Hayden Peak Latite, were erupted |  | | Report (issue) | | Gochetopa and Marshall Pass Districts, Saguache and Gunnison Counties, Colorado U.S. GEOLOGICAL SURVEY PRO FESS...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...Cochetopa and Marshall Pass Districts, Saguache and Gunnison Counties, Colorado By JERRY C. OLSON U.S. GEOLOGICAL...Cochetopa and Marshall Pass districts, Saguache and Gunnison Counties, Colorado. (U.S. Geological Survey professional |  | | Journal (article/letter/editorial) | | DEFINITION OF SOUTH A MINERAL CENTRAL BELT COLORADO. IN • JOHN W. GABELMAN. CONTENTS. PAGE Abstract............... Geologichistory of south central Colorado ................................ 180 182 182.................................. South central Colorado mineral belt ...................................Cotopaxizinc mine .............................................. 189 190 190 192 193 193 193 Marion mine .....morethan$100,000production.............. 193 194 194 Bonanza .............................................. |  | | Report (volume) | | Radioactivity in the Metal-Mining Districts of the San Juan Mountains Colorado GEOLOGICAL SURVEY --*_-...Radioactivity in the Metal-Mining Districts of the San Juan Mountains Colorado By C. T. PIERSON, W. F. WEEKS...radioactivity in the metal-mining districts of the San Juan Mountains, Colorado, by C. T. Pierson, W. F..._______________ CeboUa district..______________________________ Upper Uncompahgre district. ______ _________________________...Uranium occurrences___________ ________ __ Bonanza 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...enter must be obtained to prevent trespass. Old mine workings are dangerous and entering underground |  | | Report (chapter) | | BULLETIN 160, 2004 205 Geochronology of the central Colorado volcanic field William C. McIntosh and Charles...Mexico Institute of Mining and Technology, Socorro, NM 87801 Abstract The central Colorado volcanic field...volcanic field to the southwest, and over lapped the Colorado Mineral Belt on the north and west. The CCVF was...Sawatch Range (Grizzly Peak, Mount Aetna, Bonanza, and Marshall Creek); three of these calderas erupted four...regional ignimbrites (Antero Tuff, 33.8 Ma; Badger Creek Tuff, 33.8 Ma; Thorn Ranch Tuff, 33.7 Ma; and Gribbles |  | | 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 |  | | Report (volume) | | GEOLOGY OF THE SAN JUAN REGION OF SOUTHWESTERN COLORADO BY WHITMAN CROSS AND ESPER S. LARSEN UNITED..._________ ___ __________________________ Theralite and quartz gabbro _ _ _ ___________ _ _.._____.______ Veins...57 57 57 58 59 59 60 60 61 61 62 62 62 63 Tracy Creek andesite_-_____--_________l____________________...Undifferentiated volcanic rocks of the northern part of the Saguache quadrangle._________________j____________-_____..._ 'Treasure Mountain quartz latite Sheep Mountain andesite__-____ Alboroto quartz latite_________ Huerto |  | | Report (issue) | | Smith. Director Professional Paper 138 MINING IN COLORADO A HISTORY OF DISCOVERY, DEVELOPMENT AND PRODUCTJON...location, area, and organization of the mining counties of Colorado _________________________ _ Adams County_-..._____________________ _ Alamosa County __________________________ _ Arapahoe County _________________________...Archuleta County _________________________ _ Baca CountY-----------------------------Boulder CountY------...CountY----------------------~----Chaffee County _____________________·______ _ Clear Creek County _______________________ |  | | Journal (article/letter/editorial) | | Center, Denver, Colorado 8022) Volcanic History of the San Juan Mountains, Colorado, as Indicated by...breccias—mainly alkali andesite, rhyodacite, and mafic quartz latite—were erupted from numerous scattered central...activity changed to explosive ash-flow eruptions of quartz latite and low-silica rhyolite that persisted until...composition intertongue with the ashflow sequence: (1) quartz latitic lavas that were erupted in and adjacent...which covers about 25,000 km2 in southwestern Colorado and is well known through the studies of Larsen |  | | Journal (article/letter/editorial) | | of COLORADO ED RAINES Geology Museum Colorado School of Mines 1310 Maple Street Golden, Colorado 80401...noted Figure 1. Camp Bird mine, level 2, Sneffels district, Ouray County. Raines-Pettem collection,...photographer unknown. B etween 1868 and 1922, Colorado produced almost 260 million pounds of copper....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 |  | | 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...AMAZONITE with smoky quartz, 10 cm tall, from the Yucca Hill claim, Park County, Colorado. Richard A. Kosnar |  | | Book | | LIBRARY JUL 27 21109 -. .1‘ mucmous ABANDONED MINE LANDS: A DECADE OF PROGRESS RECLAIMING HARDROCK...to mitigate physical safety hazards of abandoned mine sites on public lands. @ THE FOREST SERVICE AML......... .. 2 ' The Impact of Abandoned Hardrock Mine Lands on America's Landscape ..................... .. 2 ' The Challenge of Reclaiming Abandoned Mine Lands ............................................................ .. 3 - Benefits of Abandoned Mine Land Reclamation .............................. |  | | Report (issue) | | lower talus-covered slopes are underlain by Huerto quartz latite and Alboroto rhyolite. Geology and Petrology...Petrology of the San Juan Region Southwestern Colorado By ESPER S. LARSEN, JR., and WHITMAN CROSS GEOLOGICAL...an area of I2fiOO square miles in southwestern Colorado UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON...because no suitable base maps of the Cochetopa and Saguache quadrangles were available, these quadrangles...and Hunter worked in the Uncompahgre, Cochetopa, Saguache, Creecle, Del Norte, and Summitville quadrangles |  | | 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) | | of the San Juan Volcanic Field, Southwestern Colorado GEOLOGICAL SURVEY PROFESSIONAL PAPER 958 •...of the San Juan Volcanic Field, Southwestern Colorado By THOMAS A. STEVEN and PETER W. LIPMAN GEOLOGICAL...Calderas of the San Juan volcanic field, southwestern Colorado. (Geological Survey Professional Paper 958) Bibliography:...16:958 1. Calderas-Colorado-San Juan Mountains. 2. Volcanic ash, tuff, etc.-Colorado-San Juan Mountains...calderas ........................................ . Bonanza caldera ..... ... .. .... .... ............... |  | | Report (issue) | | ages of volcanic units in the San Juan Mountains, Colorado: Recalculated K-Ar age determinations using...S. Geological Survey, Federal Center, Denver, Colorado 80225 CONTENTS Page Abstract................volcanic stratigraphy of the San Juan Mountains, Colorado.................................3 Table 2.--Recalculated...Tertiary volcanic units of the San Juan Mountains, Colorado..............................4 Appendices Appendix...TERTIARY VOLCANIC STRATIGRAPHY OF SAN JUAN MOUNTAINS, COLORADO (Recalculated ages listed first; old ages listed |  | | Report (volume) | | . 234 " y { " ,-t .. .~,:",. I " , COLORADO "or.! _ +, (~ STATE OF .~ :'(' COL~ADO /... BULLETIN 40 RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BlaLlllGRAPHY by James L. Nelson-Moore,...Energy COLORADO GEOLOGICAL SURVEY DEPARTMENT OF NATURAL RESUURCES STATE OF COLORADO DENVER, COLORADO 1978...ete 11 st r ng of rad i aaet 1ve occurrences 1n Colorado, with a comprehensive blbi iography and bibliographic...on the Colorado Plateau sparked several periods of exploratIon that ultimately led to a mining "boom ll |  | | Report (issue) | | description of the geology, mining history, and production of the major gold-mining districts in 21 States...relations ---------------------------History of gold mining and trends in production_ J\labama -----------...--------------Cleburne County ----------~----------------- Tallapoosa County --------------------------Alaska...------------------Cochise County -----------------------------Gila County --------------------------------Greenlee...ee County ----------------------------R[aricopa County ----------------------------R[ohave County -- |  | Plumlee, Geoffrey S., Smith, Steven M., Toth, Margo I., Marsh, Sherman P., Ludington, S.D., Wallace, A.R., Ficklin, W.H., Smith, K.S., Nash, J.T., Foley, N.K., Van Loenen, R. E., Berger, B.R., Green, G. (1993) Integrated mineral-resource and mineral-environmental assessments of public lands: Applications for land management and resource planning. Open-File Report Vol. 1993 (93-571) US Geological Survey doi:10.3133/ofr93571 | Report (issue) | | precipitated by minedrainage waters Rawley Tunnel, Bonanza, Colorado 'A^ t^isElsk t|Cr . .<#v*v&>*m*K*yx*...mineral deposits, and on the environmental effects of mining and mineral processing. The U. S. Geological Survey...mineralenvironmental assessments of the State of Colorado and the San Juan National Forest. The following...predicting mine-drainage chemistry. II. Mineral-Resource and Mineral-Environmental Assessment of Colorado A....studies; lead concentrations in stream sediments of Colorado. C. "Summitville-Type" deposits: their environmental |  | | Report (issue) | | heavy-metal-polluted water in five drainages in Colorado by George A. Desborougb1 Open-File Report 94-140...endorsement by the U.S. Government. 'Denver, Colorado 1994 CONTENTS Page Abstract .................. Mineral Creek, San Juan County ................................... Rawley tunnel, Bonanza .......................................... Wellington mine drain, Breckenridge ............................... Related...Figure 1. Heavy-metal-polluted drainages studied in Colorado in 1993 ........... 17 Figure 2. Capture of |  | | Report (issue) | | SOURCES FOR GROUND-WATER HYDROLOGY AND GEOLOGY OF COLORADO WEST OF THE CONTINENTAL DIVIDE By Edward R. Banta...in cooperation with the COLORADO WATER CONSERVATION BOARD Denver, Colorado 1992 U.S. DEPARTMENT OF...Copies of this report can be purchased from: District Chief U.S. Geological Survey Box 25046, Mail Stop...geologic data for wells and test holes in western Colorado- - ________ _ ____ 111 3 BIBLIOGRAPHY, INDEX...SOURCES FOR GROUND-WATER HYDROLOGY AND GEOLOGY OF COLORADO WEST OF THE CONTINENTAL DIVIDE By Edward R. Banta |  | | Journal (issue) | | ......... 15 W. E. Wilson The Piedmont mine, Yavapai County, Arizona ........................................ 29 B. L. Muntyan The San Manuel mine, Pinal County, Arizona ..................................Alexander The Morenci and Metcalf mines, . Gila County, Arizona ........................................& W. E. Wilson Mineral collecting at the Magma mine, . . Superior, Arizona ..........................Presmyk & M. Hay Treasures of the Magma mine, Pinal County, Arizona ............................... |
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