 | | Report (issue) | | GEORGETOWN QlJADRANGLE (TOGETHER 'VITH THE EMPIRE DISTRICT) COLORADo· BY JOSIAH E. SPURR AND GEORGE H...Boulder County.............. . . . . . . . . . . . ......... . ....... . 103 Ores in Gilpin County .......Creek County ............................ . 103 Ores from the Argentine to the Tenmile district .. : .................. . 104 Ores of the Tenmile 'district ...................................................Ores of the Leadville district ................... . 104 Ores of the Redcliff district ................. |  | | Report (issue) | | Llallagua and a view of his home there and the Siglo XX mine wh('re he worked arc induded for added insight an...introduc tion-guide to the new men coming to the mine. It was translated into Spanish with great interest...Bandy worked there, was the world's largest tin mine though early explorers did not realize this potential...recovered until rela tively late in its mining history. The district was first settled b)' people interested...first World \X/ar that impetus wa • given to the mining of tin. Since that time better than 300,000 tons |  | | Journal (article/letter/editorial) | | pyritic veins with associatedstrong quartz-clay-sericite alteration. Yandera does not exhibit marked concentriczoning...trudinggranodiorite is described by Dow andDekker Bismarck Range, approximately100 kilometers (1964) and...government and quireda Prospecting Authorityover the Bismarck missionstation16 kilometerseast (Fig. 2), and...Surfaceindicationsof mineralizationare widespread phase Bismarck intrusive complex, the main body of which is a...bounded Regional GeologicSetting on the south by the Bismarck fault zone which The Yandera depositis located |  | | Report (issue) | | FUELS THE NEW WORLD OR COOKE CITY MINING DISTRICT, PARK COUNTY, MONTANA By T. S. LOVERING f INTRODUCTION...% : * In the pioneer days of Montana the New World mining district was regarded as one of ,its most...from the district, but little information has hitherto been available as to the geology and mining. To supply...supply this need the district was studied and mapped during the summers of 1922 and 1923. FIELD WORK AND... was devoted to a study of the geology of the district. About six weeks in July and August, 1925, was |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...experience at the Gottesehre (“God’s Honor”) mine, a small fluorite mining operation in Urberg, near Sankt Blasien...E-Mail: stuwil@aol.com Rhodochrosite, Uchucchaqua mine, Lima Dept. Peru 2 inches. Wilensky photo. Clara...cylindrite, monazite, bismoclite, and other species. The mine is still in operation and specimens continue to...famous and productive tin mine in the world; it is now past its peak, but mining is still active, and new |  | | Report (issue) | | Geological Survey Board and the Colorado Metal Mining Fund ~ oopr is PUBliC P[O'J>ERTY aud 1• DOt ~re~~o~...__________________________________________ _ 1 Summary of mining districts---.---------------------Introduction...Pre-Cambrian deposits _________________________ _ Mine descriptions __________________________ _ 39 39...disseminations_ Cotopaxi mine _____________________ _ Copper deposits in Jefferson County __ _ F. M.D. property...property _____________ _ Malachite mine ________________ _ Empire mine __________________ _ Hypothermal replacement |  | | Report (volume) | | Bulletin, vol. 44. New York. American Institute of Mining Engineers: Bulletin, nos. 61-72; Transactions,... 147-264. San Francisco, Cal. California State Mining Bureau: Bulletin, no. 64. San Francisco, Cal. California...Transactions, vol. 9, pts. 2, 3. Toronto, Ont. Canadian Mining Institute: Quarterly Bulletin, nos. 18-20; Journal... BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1912. 7 Canadian Mining Journal, vol. 33. Toronto and Montreal, Canada...Bulletin, nos. 19, 21. Hartford, Conn. Delaware County Institute of Science: Proceedings, vol. 6, nos |  | | Book (edition) | | Resource Reviews Series editor John Slack, Reston, VA, USA More information about this series at http://www...suggestions for the target generation teams of mining companies exploring for world-class gold and/or...Kanowna Belle Gold Mines in Kalgoorlie; PT North Mining Indonesia in Jakarta; TU Bergakademie in Freiberg;... 6.4.2 Bingham Copper-Molybdenum Deposit, Utah, USA. . . . . . . . . . . . . . . . . . . . . . . 6.4.... . 6.4.4 Cripple Creek Gold Deposit, Colorado, USA. . . . . . . . . . . . . . . . . . . . 6.4.5 Skouries |  | | Report (issue) | | {Card 2} 1. Colorado Mineral r«aourc««-Mineral County region. I. Say»ond, Villis* B. II. Llchtc, F. £...GIS GISS Main PAGE AQUIFERS FLORIDA SARASOTA COUNTY. Duerr, A. central Survey, (200) WRi D. Hydrogeology...surficial and intermediate aquifers of Sarasota County, Florida. Tallahassee, Fla. : U.S. Geological 1986...ARSENIC ENVIRONMENTAL ASPECTS NEVADA CHURCHILL COUNTY. Lico, Michael S. Hydrologic, lithologic, and...alluvial aquifer at two sites near Fallen, Churchill County, Nevada, 1984-85. Carson, City, Nev. : U.S. Geological |  | | Report (issue) | | cities: Albuquerque, N. Mex.; Baton Rouge, La.; Bismarck,.N.Dak.; Boston, Mass.; Denver, Colo.; Lincoln...S. Geological Survey personnel of the various district offices. Each precipitation sample represents...precipitation. Palmer, Alaska 124,410 0Portland 129,240 Bismarck 226,080 Salt Lake City 167,910 Denver 108,450...the same latitude, the total tritium rainout at Bismarck is considerably greater than at the other two...4-10 _______ Nov. 25-Dec. 1 __ Dec. 9-15 _______ Bismarck, N. D. Jan. 1-Feb. 9 ____ Feb. 10-19 ______ Feb |  | | Report (issue) | | ASSESSMENT OF THE HELENA NATIONAL FOREST, WEST-CENTRAL MONTANA Edited by R.G. Tysdal 1 , Steve Ludington2 , and...ASSESSMENT OF THE HELENA NATIONAL FOREST, WEST-CENTRAL MONTANA U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 96-683-A...in west-central Montana. It lies in the vicinity of Helena, the capitol city of Montana, and includes Federal...lands within parts of five counties: Broadwater, Jefferson, Meagher, Powell, and Lewis and Clark. * Gold...was discovered in the region in Powell County in 1852. Mining began in the 1860's, and since then the |  | | Report (chapter) | | boundary located approximately 15 km north of the mine. However, mineralization occurred under a different...is of fundamental importance for exploration and mining because different structures are likely to have...boundary between the Australian and the South Bismarck plates in Papua New Guinea (Fig. 1). This study...deformation and mineralization chronology of the Kainantu mine, based on underground mapping and microstructural...2015), providing a rare opportunity to relate a mine-scale deformation chronology to plate-scale tectonics |  | | Report (volume) | | BULLETIN 539 SOME ORE DEPOSITS IN NORTHWESTERN OUSTER COUNTY, IDAHO BY JOSEPH B. UMPLEBY WASHINGTON GOVERNMENT........ Future of mining in northwestern Custer County......................... Mining districts............................................ Bay Horse district....................................................................................... 56 56 Mining conditions. .....................................prospects...................................... Ramshorn mine................................................ |  | | Journal (article/letter/editorial) | | consequently the ages and temperatures of hydrothermal sericite formation are well constrained. Oxygen was extracted...meteoric water component that was present during sericite formation must be higher than about - 1 5 (Fig...116/246 55 s e c o n d a r y biotite sericite sericite sericite sericite supergene kaolinite supergene kaolinite...70-355.7 Y.70-391.1 sericite sericite montmorillonite > sericite montmorillonite: sericite - 3 : 1 m o n t...t m o r i l l o n i t e >> sericite - 72 - 76 - 87 350 350 300 - 37 - 41 - 47 - 92 300 - 52 - |  | | Book (volume) | | in elev. From 1,000’ on the eastern border with Montana and Iowa to 3,500’ along the western boundary with...instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...beds, excavations, etc.Selenite roses. BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm...gray Barite rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds |  | | Report (issue) | | of the Arizona Geological society, society for Mining, Metallurgy and Exploration Inc., and the U. s...We also want to thank collectively, all of the mining companies and staff who graciously allowed us to...visiting Cyprus Bagdad's active porphyry copper mine. We will then visit Phelps Dodge Corporation' s...BYEDDEWITT Road Log from Bagdad, Arizona, to the Bruce mine, 5.2 miles Cumulative mileage 0.0 Copper Plaza in...the gravel road around a hill and toward the Bruce mine. Outcrops on the left are Lawler Peak Granite that |  | Espi, Joseph Onglo, Hayashi, Ken-Ichiro, Komuro, Kosei, Murakami, Hiroyasu, Kajiwara, Yoshimichi (2007) Geology, Wall-rock Alteration and Vein Paragenesis of the Bilimoia Gold Deposit, Kainantu Metallogenic Region, Papua New Guinea. Resource Geology, 57 (3) 249-268 doi:10.1111/j.1751-3928.2007.00021.x | Journal (article/letter/editorial) | | local quartz–illite–pyrite alteration; (3) quartz–sericite–mariposite–fuchsite– pyrite wall-rock alteration...first noted near Kainantu in 1928; alluvial gold mining began in 1933. Systematic mineral exploration commenced...termed the Kainantu metallogenic region (KMR). Lode mining of the KMR produced in excess of 730 kg Au, 280...regional geochemical survey in 1992. Underground mining operation began in early 2006, producing 3.45 t...discovery of new extensions of ore bodies. The mineral district and the Bilimoia deposit have been studied by |  | | Report (issue) | | • • • • • • Grade and Reserves •• • • • • • • • Mining and Beneficiation • • • • • • • Calcination .....individuals, firms and organisations, as well as to the mining and geological departments, both in Commonwealth...origin. The Henry Knob kyanite deposit4 in York County, South Carolina, was previously considered to be...Henry Knob deposit, as well as others in the same district, is thought to have been formed by the metamorphism...cent. kyanite. . . 45,000 tons of topaz. 14 i Mining and Beneficiation By far the greater part of the |  | | Book (edition) | | Resource Reviews Series editor John Slack, Reston, VA, USA More information about this series at http://www...from Argentina, Canada, Chile, China, Iran and the USA, including new maps and sections and additional colour...suggestions for the target generation teams of mining v vi companies exploring for world-class gold...Kanowna Belle Gold Mines in Kalgoorlie, PT North Mining Indonesia in Jakarta, TU Bergakademie Freiberg... 6.4.3 Bingham Copper-Molybdenum Deposit, Utah, USA . . . . . . . . . . . . . . . . . . . . . . . . |  | | Report (volume) | | Lloyd Quadrangle Bearpaw Mountains Blaine County, Montana ~y ROBERT GEORGE SCHMIDT. W. T. PECORA, BRUCE...map and sections of the Lloyd quadrangle, Blaine County, Mont------------------------------------ In pocket...pocket FIGURE 13. Index map of north-central Montana, showing location of Lloyd and adjoining quadran...LLOYD QUADRANGLE, BEARPAW MOUNTAINS, BLAINE COUNTY, MONTANA By RoBERT GEORGE ScHMIDT, W. T. PECoRA, BRUCE...840. GEOLOGY OF THE LLOYD QUADRANGLE, BLAINE COUNTY, MONT. 161 tto• _,..,...-------r-, toa• .------t-___________ |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...townships of Washington, Virginia, Bedford, Jackson, Jefferson, Bethlehem, Monroe and Clark; on regional knobs...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |  | | Book (volume) | | ASHTABULA COUNTY CONNEAUT, area pits, quarries, rd. cuts, etc.⎯cone-in-cone Calcite. CLERMONT COUNTY MILFORD...CLINTON COUNTY WILMINGTON, area of Todd’s Ford, a mineral deposit⎯Hematite. COSHOCTON COUNTY AREA, townships...townships of Washington, Virginia, Bedford, Jackson, Jefferson, Bethlehem, Monroe and Clark; on regional knobs...CUYAHOGA COUNTY CHAGRIN FALLS (on Geauga Co. line), area quarries⎯oilstone. DELAWARE COUNTY DELAWARE...nodules⎯Pyrite (crystals sharply cubic). FRANKLIN COUNTY COLUMBUS, area countywide exposures of blue clay |  | | Report (issue) | | no OIL ORO OIG ZoZ 292 Boulder County Tellurides .... 294 Boulder County Tungsten ...... eeoeeesee 296...323 A. Rifle area, Colorado «0s... 323 B. Uravan District, Colorado 324 Cope tick Rock DIsEEIcL sCoLoradO)...324 DeeGkante District, New sMext Comer. clecetsls cused cists! 0/0 326 E. Shiprock District, Utah—Arizona...Utah—Arizona ....vccccsnens F. Monticello-Moab-Thompsons District, Utah .....secvceee 326 327 ee eeseeee Gig GE...crelardanere oe eoeeeereeeeeeoeeseeoeeee IDAHO-MONTANA wcseveveccccccssvecrsccsscessssssesscsessessecees |  | | Journal (article/letter/editorial) | | porphyritic rocksintrusiveintothe Miocene(13-15 m.y.) Bismarck batholith.Threeseparate intrusive events haveeraplaced...alterationtypes: quartz,biotite,feldspar,variationsof quartz-sericite-clay-chlorite, and a late stageof clay-chlorite-zeolite...complexorebodybut pronouncedcontrol of copper Amdex Mining Limited of Sydney,Australia, comnfineralization...have been alluded to previously located in the Bismarck 810 PORPHYRY COPPER SYSTEM AT YANDERA, PNG...is uncertain. It postdates emplacement of the Bismarck Granodiorite and predatesintrusions related to |  | | Book | | label: Aerial view of the Bingham Canyon copper mine, Kennecott Utah Copper, September 2003. Photo courtesy...Magmatic-Hydrothermal History of the Río Blanco-Los Bronces District, Central Chile: Development of World’s Greatest...Chuquicamata District, Northern Chile Geologic Overview of the Escondida Porphyry Copper District, Northern...± Molybdenum Deposits of the Ertsberg-Grasberg District, Papua, Indonesia Clyde A. Leys, Mark Cloos,...Tenke-Fungurume SedimentHosted Strata-Bound Copper-Cobalt District, Katanga, Democratic Republic of Congo Dzhezkazgan |
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