 | | 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............................................................................. Calcite............................................... |  | | 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 |  | | Journal (article/letter/editorial) | | com/loi/taje20 Structure and metamorphism of the Calliope Volcanic Assemblage: Implications for middle to...Morand (1993) Structure and metamorphism of the Calliope Volcanic Assemblage: Implications for middle to...40, 257-270 Structure and metamorphism of the Calliope Volcanic Assemblage: Implications for Middle to...Australia. The Late Silurian to Middle Devonian Calliope Volcanic Assemblage in the Rockhampton region...(Hunter-Bowen Orogeny). In the Stanage Bay area, both the Calliope Volcanic Assemblage and younger strata generally |  | | 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 |  | 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 |  | | Journal (article/letter/editorial) | | striated, Paradocrasite (Gr. stubby prisms replacing calcite in a specimen of supposed "dyscrasite" from Broken...about 0.5 mm long, embedded in a matrix of white calcite. Some prisms are striated parallel to the long...determined by Berman balanceon a 40-mgfragment free of calcite,is taken as 6.5. The measured value is 6.52, but...brown carbonate (siderite?) intergrown with the calcite gangue. The appearanceof paradocrasite and the...1969) that the specimen came from the Lucknow gold mine, Lucknow, 6 miles east of Orange, New South Wales |  | | Journal (article/letter/editorial) | | (;atehouse, 1975). Gold has been produced at the Highway mine (Levingston, 1972: Ka3,. ]982. 1984). Gold has also...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:...Levingston, 1972). Ravenswood was also an important Au mining centre (Table 3). Mineralisation is similar in...Silurian-Middle Devonian fault blocks together as the Calliope Island Arc (Fig. 4). The arc may have been separated |  | | 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) | | 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 |  | | 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 |  | | 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 (issue) | | contain small white aggregates of finely crystalline calcite. Shell fragments and ammonites are often preserved...with the thickness of this zone in the Lincoln district (Trueman, 1918), but is much thicker than at Kirton...coarser-grained towards the top with sporadic large calcite BOREHOLE DEPTH IN METRES ' ---;~ ---.-,. ' -....many fossils preserved in coarsely crystalline calcite. The bed is also characterised by an abundance...include Catinula alimena, Gryphaea sp., Nuculoma cf. calliope (d'Orbigny), Oxytoma inaequivalve (J. Sowerby) |  | | Journal (article/letter/editorial) | | II G " " " Cu III III II III Cu II J " Calliope Native Dog Duingal Creek Moonmera Moongan Struck...mineralization zoning is pervasivechlorite-epidote-calcite similar to that of the Permo-Triassicdepositsbut...BARBARAS CR 56 MANNERSLEY 27 CLAYPAN -- 57 CALLIOPE 28 TURKEYGULLY 58 29 BANK 59 MUNHOLME CR ...prospect,Queensland: Melbourne, Australasian Inst. Mining Metallurgy Conf. Ser., 1974, Southern and Central...influence on mineralization in the QueenslandGovt. Mining Jour., v. 77, p. 112-120. longitudinalbelts,as |  | | Journal (article/letter/editorial) | | secondary phases including white mica, chlorite and calcite, but relict twinning is still recognisable. Representative...both allochthonous skeletal fragments and sparry calcite cement, the latter restricted to sands near the...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) |  | Daintree, R. (1872) Notes on the Geology of the Colony of Queensland: With an Appendix, containing description of the Fossils, by R. Etheridge, Esq., F.R.S., F.G.S., Palaeontologist on the Geological Survey of Great Britain, and W. Carruthers, Esq., F.R.S, F.G.S., Keeper of the Botanical Department in the British Museum. Journal of the Geological Society, 28 (1) 271-317 doi:10.1144/gsl.jgs.1872.028.01-02.40 | Journal (article/letter/editorial) | | o f " Desert Sandstone" at Cave Creek, Gilbert District, Northern Q~eensland. and has an elevation of...fossils from Wollumbilla Creek and the surrounding district, which he described in YOL. X X u I. X Downloaded...the " D e v o n i a n " rocks of the Gympie mining-district, a weft-preserved fauna has been collected...dyke has penetrated the Palmozoic rocks of the district. The following districts, however, where Devonian...been centres of gold-mining enterprise : Lucky Valley. Talgai. Gympie. Calliope. Boyne. [ I E I 9 Morinish |  | | Journal (article/letter/editorial) | | traced from near Newcastle north to the Proserpine district of central Queensland (Figure 1). In this paper...detrital grains, cemented by microcrystalline calcite. Individual beds are internally stratified, with...within these rocks form boudins and are cut by calcite-filled extensional fractures. The western contact...CLEITCR ETAL. succession, Campwyn Volcanics, Mackay district, central Queensland. Australian Journal of Earth... Upper Palaeozoic formations in the Mt Morgan District: Faunas. Papers of the Department of Geology, |  | | Journal (article/letter/editorial) | | (Figure 6); and (ii) detailed mapping of the Cania district (see figure 1) by Cummings (1998). Palaeocurrent...lava-fragment breccia is extensively altered with calcite, chlorite and epidote replacing phenocrysts and...lava is extensively vesiculated (now infilled by calcite and chlorite forming amygdales), with bands of...exposed, but are in part defined by epidote and calcite infilling voids between pillows. The lava is relatively...glass replaced by chlorite 6 calcite, and vesicles infilled by calcite, sericite and lesser chlorite |  | | 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 (issue) | | Engineer, formerly President of the Institution of Mining and Metallurgy. Major VAUGHAN 11oRGAN, Intelligence...Empire. No attempt has been made t o give details of mining or metallurgical processes. HARCOURT, Chairman...superior organisation, stricter control, more suitable mining methods. lower railway freights and more adequate...of the early exploratory ,vork be confirmed by mining on a com mercial scale, the present limited requirements...ore was made in 1914 at Dagwin, in the Wassa"v district of the Gold Coast Colony, West Africa, and the |  | | 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 |  | | 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 |
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