 | | Report (volume) | | BULLETIN 4=78 GEOLOGY AND ORE DEPOSITS NEAR LAKE CITY, COLORADO BY JOHN DUER IRVING AND HOWLAND BANCROFT........................................ Official mining districts.............................................. Hinsdale volcanic series........................................... Lake City district............................................ ^......... Hinsdale volcanic series......................................................... Ore deposits of Lake City district....................................... The |  | | Journal (article/letter/editorial) | | MultistageVein Ores of the Lake City District, Western San Juan Mountains,Colorado John,• F. SL^CK U.S. Geological...Polymetallic vein ores of the Lake City district, in the western San Juan Mountains, Colorado,have producedapproximately$12...northeast,and east sides of the 22.5-m.v.-old Lake City caldera. The veins,typically0.5 to 1.5 m wide...fractures and faults outside the ring fault of the Lake City caldera and within the moat area of the older...fracturesand faultsexclusivelyon the north side of the Lake City caldera, witere vein minerals include' pyrite' |  | | Report (issue) | | 789(4) Z = 3 X-ray Powder Pattern: Golden Fleece mine, Colorado, USA. 2.78 (100), 2.96 (80), 5.59 (65)...29.33 21.40 9.94 10.36 100.00 (1) Golden Fleece mine, Colorado, USA. (2) (Pb, Sr)Al3(PO4)(SO4)(OH)6 with...rhodochrosite (Golden Fleece mine, USA). Distribution: In the USA, large crystals from the Golden Fleece mine, near...near Lake City, Hinsdale Co., Colorado; in the Mineral Park mine, Mohave Co., Arizona; and at the Daisy...Sanders Co., Montana. In the Sylvester mine, Zeehan, and the Comet mine, Dundas, Tasmania; from Broken Hill |  | | Journal (issue) | | 46 ISSUE 12 All about My First Tucson Show Lake City Mines and Minerals Guatemala’s Secret Minerals...a special group of people. By Bob Jones LAKE CITY, COLORADO 34 Enjoy its mines, minerals and mountains...died Sunday, Sept. 18, 2016 at his home in Lake Havasu City, Arizona. He is survived by his second wife...The BECMM sponsors digs at the old Eureka Prospect mine near Marion, and it routinely produces the midnight-purple...that one can wear with pride! —Jerry Gehre Johnson City, TN CONTEST RULES Would you like to be named Lapidary |  | | Report (issue) | | INTERIOR GEOLOGICAL SURVEY The Gladiator Mine, Lake City, Colorado: The mineralogy and paragenesis of an...standards and stratigraphic nomenclature. Denver, Colorado CONTENTS Abstract............................................................... Geology and mine workings..........................................of the Lake City area, showing the location of some of the more prominent mines in Lake Mining district...Generalized geologic map of the Gladiator Mine Lake City, Colorado...................................... |  | | Report (volume) | | Handles Peak Wilderness Study Areas, Hinsdale County, Colorado U.S. GEOLOGICAL SURVEY BULLETIN 1715-B...Handles Peak Wilderness Study Areas, Hinsdale County, Colorado By RICHARD F. SANFORD, RICHARD I. CRAUCH...RESOURCES OF WILDERNESS STUDY AREASSOUTHWESTERN COLORADO DEPARTMENT OF THE INTERIOR DONALD PAUL MODEL...Areas, Hinsdale County, Colorado. (Mineral resources of wilderness study areas southwestern Colorado ; ch...mineral resources Colorado Redcloud Peak Wilderness. 2. Mines and mineral resources Colorado Handies Peak |  | | Journal (article/letter/editorial) | | at the Empress Josephine mine, Kerber Creek district, Saguache County, Colorado, remains the only described...analysis of material from the May Day mine, La Plata district, Colorado, confirms the above composition. Stuetzite...analysis locality and the Golden Fleece mine, Lake City, Hinsdale County, Colorado. INrnooucrrox Stuetzitewas...material from the Empress Josephine mine, Kerber Creek district, Colorado, and who supplied Prof. R. D. Georgewith...locality is from the collectionsof the University of Colorado (UC1649) and was donated by ProfessorGeorgeas |  | | Report (issue) | | Eureka and Adjoining Districts San Juan Mountains, Colorado By WILBUR S. BURBANK and ROBERT G. LUEDKE GEOLOGICAL... 535 Prepared in cooperation with the Colorado State Mining Industrial Development Board A study of...-- __ ----- _--Exploration and mining ____________________________ _ Lake Emma-Ross Basin area ____________________...Juan, San Miguel, and Hinsdale Counties. 2. Geologic map of the Eureka district and adjoining areas. 3...sections of the Eureka district and adjoining areas, San Juan, Ouray, and Hinsdale Counties, and explanation |  | | Report (issue) | | Veins and Vein Sediments, of the Golden Wonder Mine Lake City, Colorado: an Epithermal Hot Springs Gold-Alunite...map, Lake City Area. Schematic west-east section, Golden Wonder Mine. West-east section, Golden Wonder...Wonder Mine. Plan view map, third level. Plan view map, east end of sixth level. Plan view map, fourth level...chalcopyrite with alunite. Hot-spring model for the Golden Wonder Mine. Isothermal log fO£-fS2 diagram, 250^C, 1...in the Golden Wonder Mine 11 GEOLOGY OF THE VEINS AND VEIN SEDIMENTS OF THE GOLDEN WONDER MINE, LAKE |  | | Journal (article/letter/editorial) | | 02:13 13 March 2015 CALAVERITE Cripple Creek, Colorado W ith the exception of native gold and electrum...Cripple Creek district, essentially subsequent to the development of all other Colorado gold districts...suggested for this issue, much of which is devoted to Colorado minerals. Calaverite is a yellowish to silver-white...percent lead, but this is considered to be the result of intimately associated altaite, a lead telluride...telluride. Analyses of calaverite from the Kirkland Lake district, Ontario, Canada, show up to several tenths |  | Doe, B. R., Steven, T. A., Delevaux, M. H., Stacey, J. S., Lipman, P. W., Fisher, F. S. (1979) Genesis of ore deposits in the San Juan volcanic field, southwestern Colorado; lead isotope evidence. Economic Geology, 74 (1) 1-26 doi:10.2113/gsecongeo.74.1.1 | Journal (article/letter/editorial) | | Depositsin the SanJuanVolcanicField, Southwestern Colorado LeadIsotopeEvidence B. R. DOE,T. A. STEVEN,M....of southwesternColorado,the isotopiccompositionof lead in oresand ore prospectsof Cenozoicage rangeswide]y:...the lead isotopedata indicatesthat once depositionof lead minerals begins, further exchangeof lead betweenfluid...the relatively constantisotopiccompositionof the lead in theseores, which is not affectedby the grade...an upward vertical component to its movement. The lead isotope data therefore support a circulating cell |  | | Journal (article/letter/editorial) | | [Northeastern University] at 11:57 17 November 2014 Husky Mine, Elsa, Yukon Territory, Canada T he ruby silvers...have been available in recent years from the Husky mine, Yukon Territory, Canada. Consequently, in keeping...this year’s Tucson Gem and Mineral Show, a Husky mine polybasite has been nominated as this issue’s Connoisseur’s...pyrargyrite, stephanite, tetrahedrite and other silver and lead sulfosalts; silver; gold; acanthite; and a wide...of the more interesting Colorado occurrences include mines of Clear Creek County, particularly in the Georgetown |  | | Report (issue) | | ) = 8.18 Optical Properties: Opaque. Color: Dark lead-gray, tarnishes rapidly to a dark bronze to iridescence;...8.45 Z=7 X-ray Powder Pattern: May Day mine, Colorado, USA. 2.16 (100b), 2.55 (80b), 3.03 (70), 2.62...51 Total 99.7 99.1 100.00 (1) Red Cloud mine, Colorado, USA; by electron microprobe, corresponding to...to Ag4.76 Te3.00 . (2) Bisbee, Arizona, USA; by electron microprobe, correspnding to (Ag5.41 Cu0.02 )Σ=5...Island, Lake Temagami, Ontario; and at Lindquist Lake, Quebec, Canada. In the USA, in Colorado, at the |  | Weiland, Erick F., Lindemann, J.W., Connors, R.A., Meyers, W.T., Johnson, S.A., Heran, W.D. (1981) Geochemical and geostatistical evaluation of American Flats-Silverton planning units, San Juan volcanic province, Colorado. Open-File Report Vol. 1981 (81-599) US Geological Survey doi:10.3133/ofr81599 | Report (issue) | | FlatsSilverton Planning Units, San Juan Volcanic Province, Colorado by E. F. Weiland, J. W. Lindemann, R. A. Connors...FLATS-SILVERTON PLANNING UNITS SAN JUAN VOLCANIC PROVINCE, COLORADO Prepared for: United States Bureau of Land Management...Research Inc. 1626 Cole Blvd., Suite 120 Golden, Colorado 80401 September 26, 1980 BARRINGER RESEARCH...American Flats-Silverton Planning Units in southwest Colorado (fig. 1). Barringer Research Incorporated conducted...San Juan Mountains, between Silverton and Lake City, Colorado (fig. 1). The study was done to further assess |  | Bove, Dana J., Hon, Ken, Budding, Karin E., Slack, John F., Snee, Lawrence W., Yeoman, Ross A. (2001) Geochronology and geology of late Oligocene through Miocene volcanism and mineralization in the western San Juan Mountains, Colorado. Professional Paper 1642. US Geological Survey doi:10.3133/pp1642 | Report (issue) | | Mineralization in the Western San Juan Mountains, Colorado U.S. Geological Survey Professional Paper 1642...outflow Fish Canyon Tuff (lower cliffs), near Lake City, Colo. Geochronology and Geology of Late Oligocene...Mineralization in the Western San Juan Mountains, Colorado By Dana J. Bove, Ken Hon, Karin E. Budding, John...mineralization in the western San Juan Mountains, Colorado / by Dana J. Bove ... [et al.]. p. cm. - (U.S...Geology—San Juan Mountains (Colo. and N.M.). 4. Geology—Colorado. 5. Volcanism—San Juan Mountains (Colo. and N |  | | Report (issue) | | Wilderness Study Area, western San Juan Mountains, Colorado* by Ken Hon, Dana J. Bove, and V. J. S. Grauch...S. Geological Survey, Federal Center, Denver, Colorado, 80225 STUDIES RELATED TO WILDERNESS Bureau...Wilderness Study Area (CO-030-217), Ouray and Hinsdale Counties, Colorado. SUMMARY The western San Juan Mountains...volcanic field that covered much of south-central Colorado during Oligocene and Miocene time. The earliest...coalesced and nested calderas that extends from Lake City to Silverton. The main stage of caldera-forming |  | | Journal (issue) | | For August, 1935 __ __ ,,. PAe& The Boulder, Colorado, Tungsten Area. By Ronald L. Ives ........ 113............................. 12 3 Lake City Mining District, Colorado. By David Seaman ........... 124...The Boulder, Colorado, Tungsten Area By RONALD L. IVES Since the early days of placer mining mation is pre-Cambrian...pre-Cambrian, with three, in Colorado, those who panned the and possibly four mineralizations, the creeks...remainder FeWO, .... Ferberite hlgh country of Boulder County, Color20-80 % Mn WO., ado, near the town of Nederland |  | Hon, Ken, Ludwig, K. R., Simmons, K. R., Slack, John F., Grauch, R. I. (1985) U-Pb isochron age and Pb isotope systematics of the Golden Fleece vein; implications for the relationship of mineralization to the Lake City Caldera, western San Juan Mountains, Colorado. Economic Geology, 80 (2) 410-417 doi:10.2113/gsecongeo.80.2.410 | Journal (article/letter/editorial) | | Systematicsof the Golden Fleece Vein Implications for the Relationshipof Mineralization to the Lake City Caldera...Caldera, Western San Juan Mountains, Colorado KEN HON, K. R. LUDWIG, K. R. SIMMONS, U.S. GeologicalSurvey,Denver...27.5 + 0.5 m.y. has been determinedfor the Golden Fleece vein, southwesternColorado,which containsan...pitchblendeand gold-silver telluridesunique within the Lake City area. Initial Pb isotoperatiosof ore samplesfrom...related to the 23.1-m.y.-old Lake City caldera.Other veinsin the Lake City areahavePb isotoperatiosand |  | | 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 (issue) | | Thomssen Mineral Exploration Consultants Carson City, NV photography: Nelly Bariand Sorbonne Paris, France...R. Kampf Natural History Museum of Los Angeles County Arthur Roe Tucson, AZ Abraham Rosenzweig University...Behnke Famous mineral localities: the Corrego Frio mine and vicinity, Minas Gerais, Brazil ...............Person-other—Other persons such as miners, field assistants, mine managers, etc. Place —Used when a mineral is named...obvious. First of all, the USSR has firmly taken the lead: 103 new minerals were discovered from the USSR |  | Lipman, P. W., Fisher, F. S., Mehnert, H. H., Naeser, C. W., Luedke, R. G., Steven, T. A. (1976) Multiple ages of mid-Tertiary mineralization and alteration in the western San Juan Mountains, Colorado. Economic Geology, 71 (3) 571-588 doi:10.2113/gsecongeo.71.3.571 | Journal (article/letter/editorial) | | nandAlteration in the WesternSanJuanMountains,Colorado PETERW. LIPMAN, FREDERICKS. FISHER, HARALDH. ][VIEHNERT...formation of the Uncompahgre,San Juan, Silverton, and Lake City calderas. The richest ore depositsare associatedwith...silicic porphyry. This associationis commonin many mining districtsin the Rocky Mountainsregion. waningstagesof...Needle ß Lo Plato Mrs ß ¸Durango • >• • ß COLORADO 37 ø NEW MEXICO 0 0 /I 25 25 50 MILES 50...SL, Son Luls H, Mt. Hope U, L, UN, Lake City Lost Lake Platore Ute Creek Uncompahgre Fro |  | | 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) | | 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..____________________ ___________________ General |  | | 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) | | 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 _______________________ |
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