 | | Report (issue) | | Deposits of the Uncompahgre (Ouray) Mining District, Southwestern Colorado Professional Paper 1753 U.S...western San Juan Mountains region of southwestern Colorado. In the foreground is a broad, gently south-sloping...flat-bottomed, glacier-carved valley. The town of Ouray (about 7,800 feet altitude), just visible through...Dollar Highway” south of Ouray, parallels the Uncompahgre River valley to connect Ouray with Montrose to the...and other canyons and mountain passes to connect Ouray with Silverton and Durango to the south. The many |  | | Report (volume) | | ORE DEPOSITION IN THE UNCOMPAHGRE DISTRICT OURAY COUNTY, COLORADO WITH SUGGESTIONS FOR PROSPECTING BY...Prepared in cooperation with the COLORADO METAL MINING FUND AND THE COLORADO GEOLOGICAL SURVEY BOARD Contributions........................ Contact of the dolomitic Ouray limestone andLeadvillelimestone. Contact of Leadville...-_--______--__-__--__-_-__--__--__-____Area south of the Ouray fault._______-_______________-______' Deposits associated...fissures.___-____-__-__--_--___-_ Area north of the Ouray fault...........____________________ Suggestions |  | | 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 (article/letter/editorial) | | Discovery, Mining History, Geology, and Specimen Mineralogy of Selected Occurrences in Central Colorado and...Inc. 1441 W. Forty-sixth Avenue Suite 14 Denver, Colorado 80211-2338 P art one of this article (July/August...of gold in Colorado and the mining history and geology/mineralogy of the Front Range mining districts...and California Gulch. THE CENTRAL COLORADO MINERAL BELT LAKE COUNTY 3,396,000 ounces, 1860-1 990 (Davis...7 by 2.5 cm (8.5 ounces), Ground Hog mine, Gilman, Eagle County. Harvard Mineralogical Museum specimen |  | | Book (edition) | | Tourist as well. All of the 19 Rock Forma tions at Ouray, dating from the Pre-Cambrian to the Cenozoic Eras...Report of 1S80 relating to the growing Mining Industry at Ouray is printed in its entirety. Many historic...Survey, Tom Rosemeyer, Chief Engineer, Camp Bird Mine and Miss Margaret B. Allen, M.A. of Orange, New...Introduction to Mineral Collecting at Ouray................ The Minerals at Ouray................................Characteristics of Ouray Minerals................ Mineral Collecting Sites at Ouray.................. |  | | Report (volume) | | THE ! UNCOMPAHGRE PRIMITIVE AREA, "OT TTHWESTERN COLORADO - c-t SURVEY BULLETIN 1391-E Mineral Resources...Primitive Area, San Juan Mountains, Southwestern Colorado By T. A. STEVEN, P. W. LIPMAN, F. S. FISHER, U...primitive area, San Juan Mountains, southwestern Colorado. (Studies related to wilderness primitive areas)...I 19.3-.1391-E 1. Mines and mineral resources Colorado San Juan Mountains. I. Steven, Thomas August,...Primitive Area, San Juan Mountains, southwestern Colorado, and some adjoining national forest lands that |  | Lund, Karen, McAleer, Ryan J., Aleinikoff, John N., Cosca, Michael A., Kunk, Michael J. (2018) Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic lodes overprinted by younger stockwork Cu-Mo ores and penecontemporaneous Cu lodes. Ore Geology Reviews, 102. 666-700 doi:10.1016/j.oregeorev.2018.05.018 | Journal (article/letter/editorial) | | Manuscript Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic...J. Kunk, Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic...pertain. Two-event lode-ore deposition at Butte, USA: 40Ar/39Ar and U-Pb documentation of Ag-Au-polymetallic...for world-class deposits of the Butte mining district, Montana, USA, is deep pre-Main Stage porphyry Cu-Mo...processes diminished in intensity outward from district center along lode veins, synchronously forming |  | | 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 (article/letter/editorial) | | presence ofhygroundmine by the Mount Morgan Gold Mining drothermalpebbledikes,and (4) clusterof satellite...andcon- siliceous unitsin a volcanicsequence, with the mine tinueduntilJuly1981. MountMorganLtd. wastaken tuffaceous...time 1980). Tablei showsrecordedproductionfromthe mine. TheoriginoftheMountMorganorebodyhasbeen the subjectof...1322 1323 MT. MORGAN Au-Cu MINE, QUEENSLAND TABLE1. Mount Morgan Mine ProductionRecord Recovered grade...Morgan Syndicate, 1884-1886 • Mount Morgan Gold Mining ? ? Co. Ltd., 1887-19272 Mount MorganLtd., 1929-19822 |  | | 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 _______________________ |  | | Report (volume) | | Mineral Resources of the Uncompahgre Primitive Area Colorado By R. P. FISCHER and R. G. LUEDKE, U.S. GEOLOGICAL...mineral survey in the Uncompahgre primitive area, Colorado. The area discussed in the report corresponds....___ _________________________________________ Ouray area____j______________________-.__________________...and R. G. Raabe_____.__..___ Claim coverage and mine workings._____________________________ Patented..._-____.____-______-____---Relationship of underground mine workings to the primitive-area boundary_ ______ |  | | Journal (article/letter/editorial) | | (;atehouse, 1975). Gold has been produced at the Highway mine (Levingston, 1972: Ka3,. ]982. 1984). Gold has also...Metamorphics occurs as disseminated, stratabound pyrite and chalcopyrite along the contact between the...At some localities. including the Peak Downs Cu mine, the mineralisation is hosted by oxide/sulphide...only significant production was from the Peak Downs mine (Department of Mines, Queensland, 1953a; Co×, 1975:...River Metamorphics. The veins contain native Au, pyrite and arsenopyrite, small quantities of chalcopyrite |  | | Report (volume) | | Director Bulletin 842 OF THE GREATER HELENA MINING REGION MONTANA BY J. T. PARDEE and F. C. SCHRADER...______________________-__-_________--_------___-_ Ophir district.________________________________________________...__________---__--_-___ Austin district._.____..._..._._.____._____.____.___-.___._____ Marysville district.___________...___________________________________________ Gould district._______________________________________________ Stemple...._ Heddleston district.___________________________________________ Wolf Creek district.._..........__ |  | | Journal (article/letter/editorial) | | II G " " " Cu III III II III Cu II J " Calliope Native Dog Duingal Creek Moonmera Moongan Struck...deposits have also relativelysimplesulfidemineralogyof pyrite-chalgiven rise to numeroussmall depositsof copper...--sphaterite Perm phy --Permian --phyllic py pyrr --pyrite --pyrrbotite volcs --volcanics wolf - po ...the Queensland-XewSouth Wales border. It sericite-pyrite)and peripheralpropylitic (chloriteoccursin a narrow...220 m.y. Depositsin the Mount Mor- core with a pyrite halo situatedbetweenthe copper gan region (northern |  | | Journal (article/letter/editorial) | | Casselman Formation (Conemaugh Group) Southeast Ohio, USA Angeline Catena and Daniel Hembree * Department of...Geological Sciences, Ohio University, Athens, OH 45701, USA; E-Mail: ac213010@ohio.edu * Author to whom correspondence...(a) The location of Athens County within Ohio; (b) A map of Athens County with the location of the study...along a well-exposed road cut located in Athens County, Ohio (Figure 1d). At this site, three 18 m vertical...(Texas Petrographic Services Inc., Houston, TX, USA) mounted on 2.5 × 5.0 cm (n = 47), 4.0 × 7.5 cm (n |  | | Book | | I. Prospecting - Australia. 2. Gold mines and mining - Australia. I. Perry, Nance. II. Title. 622'.1841...gold centres, vignette of one of the principal mining centres. Glossary 91 Index 95 Preface We should... Now that the rush for gold is on again, large mining companies have acquired authority to prospect on...with impunity, and the nearest mines department or mining warden will supply this information. Favourite...but in combination with the sulphides of iron (pyrite) or of arsenic and iron (arsenopyrite). When found |  | | Report (volume) | | California. THE MINES HANDBOOK, 1922 MACHINERY FOR MINE • MILL SMELTER Embodying recent developments...Hydraulic TurbinpM MILWAUKEE, Metallurgical Machinery Mining Machinery Perforated Oil l-:imini-- Metals I'liiiiliini:...are getting the most in service from Worthington mining equipment — :the most from the standpoint of first...power consumption. Worthington meets needs of the mining industries with a complete line of products, from...Compressor NEW YORK Crushing Rolls Air Compressors Mine Pumps Ball Mills Blast Furnaces Oil Engines Screens |  | | Report (volume) | | so successful. Allis-Chalmers Manufacturing Co. Mining Machinery Dept. OFFICES For Canadian MILWAUKEE...Canada THE MINES HANDBOOK Meeting tbe Needs of Mine and Smelter Hundreds of plants on both American...service from Superior Jaw Crusher Worthington mining equipment the from the standpoint of first cost...most wear, Worthington meets the needs of the mining industries with a complete line of products, from...(all types) Crushers Crushing Rolls NEW YORK Mine Pumps Oil Engines Sampling Machinery Screens Stamp |  | | Report (issue) | | imply endorsement by the U.S. Government. Denver, Colorado 2Menlo Park, California 1996 NONTECHNICAL EXECUTIVE...was discovered in the region in Powell County in 1852. Mining began in the 1860's, and since then the...References cited F. Mineral resource geology of mining districts/areas Lincoln Region by R.G. Tysdal,...G. Tysdal, E.A. du Bray, and J.W. Whipple York district Geologic setting Mineral deposits Sediment-hosted...Exhalative, Au iii Vein, Au-bearing Confederate Gulch district and Southern Big Belt area Geologic setting Mineral |  | | Journal (issue) | | abundant black phosphatic nodules. Accretions of pyrite and green siderite ooliths are also present. The...with the thickness of this zone in the Lincoln district (Trueman, 1918), but is much thicker than at Kirton...include Catinula alimena, Gryphaea sp., Nuculoma cf. calliope (d'Orbigny), Oxytoma inaequivalve (J. Sowerby)...alimena, Myophorella irregularis Seebach, Nuculoma calliope and Oxytoma inaequivalve. The foraminifera of...ovalis, Modiolus bipartitus J. Sowerby, Nuculoma calliope, Oxytoma inaequivalve, Parallelodon cf. erinacei |  | | Journal (article/letter/editorial) | | fore‐arc succession, Campwyn Volcanics, Mackay district, central Queensland a b C. L. Fergusson , R...fore‐arc succession, Campwyn Volcanics, Mackay district, central Queensland , Australian Journal of Earth...fore-arc succession, Campwyn Volcanics, Mackay district, central Queensland* C. L. FERGUSSON,1 R. A. HENDERSON2...Map of the New England Fold Belt in the Mackay district with BMR fossil sites (Jensen et al. 1966; Clarke...sericite and epidote alteration is ubiquitous, and pyrite is common. This suite is similar to the mafic-intermediate |  | | Journal (issue) | | Rodriguez, who was then governor of the Northern District of Baja California, remained loyal to the central...Continues through Oct. 20 in Humboldt county, through Nov. 3 in Nye county. 9-11 Annual convention of Utah...river over the Superior-Kelvin road. 17-18 Apache county fair, St. Johns, Arizona. 18-19 Las Vegas, Nevada...winning photographs in August 4 LOST MINE Lost Dutch Oven Mine, by REXFORD BELLAMY . 5 QUIZ A Test...Southwest . 10 13 PERSONALITY 14 16 17 20 24 26 MINING Briefs from the Desert region 28 NEWS Here |  | | Report (issue) | | due to the war in the . publications relating to mining and metallurgical statistics. Labour, health and...carry35576 A 3 6 ing metallic sulphides, especially pyrite ; often, also, as an impregnation of the country...Igoorlie in Western Australia, and Cripple Creek in Colorado,. The mo8t -irr1portant telluride ore of Kalgoorlie...metall11:rgist of the Portland Gold Mining Company, Ltd., at Cripple Creek, Colorado, for the removal from cyanide...made to apply the principle. Tne Portland Gold Mining Co-m pany has reported a saving of $30,000 (say |  | | Journal (article/letter/editorial) | | Equigranular opaque mineral grains, principally pyrite, are relatively common. In some grains feldspar...the position of the Tamworth Belt (TB) and the Calliope Volcanics (CV) in the Mid-Devonian whereas in...shown that the Late Silurian to Middle Devonian Calliope Volcanic Assemblage in Queensland, which represents...the Tamworth Belt to continental margin for the Calliope Volcanic Assemblage (Cawood, 1991; Morand, 1993)...Upper Devonian Baldwin Formation, Tamworth-Barraba District, New South Wales. J. Geol. Soc. Aust., 15: 87-102 |  | Henley, H. F., Brown, R. E., Brownlow, J. W., Barnes, R. G., Stroud, W. J. (2001) Grafton-Maclean Metallogenic Map (SH/56-6, SH/56-7) Metallogenic Study and Mineral Deposit Data Sheets. Geological Survey of New South Wales | Report (issue) | | (occurrence number 1028) 2. Webbs silver mine (1018) 3. Ottery mine (1312) 4. Butlers lode (1207) 5. Dutchmans................................................. Mining History ................................................................................ Bismuth mine ................................................................................................ Mining and exploration history .......................................................... Poverty Point mine ............................................... |
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