 | | Journal (article/letter/editorial) | | alkaline-related gold deposits in the southern Rocky Mountains, USA: inÂŻuence of regional tectonics Received: 5 January...Ma), with deposits restricted spatially to the Colorado mineral belt (CMB). Other alkaline igneous rocks...Mountain front southward, from Cripple Creek in Colorado through New Mexico. All of these deposits are...through hydrously altered LREE-enriched rocks of the Colorado (Yavapai) province have 208Pb/204Pb ratios that...anomalously hot, thick, and light crust beneath Colorado may have been a catalyst for large-scale transfer |  | | Report (volume) | | Potential and Geology of the San Juan National Forest, Colorado Edited by Richard E. Van Loenen and Anthony B...potential and geology of the San Juan National Forest, Colorado I edited by Richard E. Van Loenen and Anthony...: I 19.3.2127 1. Mines and mineral resources--Colorado-San Juan National Forest. I. Van Loenen, Richard...famous mining districts, such as those at Rico and La Plata, but there is no significant mining being...Foley, and Anthony B. Gibbons Exploration and Mining History ...................................... |  | | Report (volume) | | Intrusive Rocks ana Associated Ore Deposits in the Colorado Mineral Belt U.S. GEOLOGICAL SURVEY BULLETIN...University Dr. LAKEWOOD, Colorado Federal Center, Bldg. 810 MENLO PARK, California Bldg. 3, Rm. 3128, 345...Intrusive Rocks and Associated Ore Deposits in the Colorado Mineral Belt By Charles G. Cunningham, Charles...understand the temporal and spatial evolution of the Colorado Mineral Belt UNITED STATES GOVERNMENT PRINTING...intrusive rocks and associated ore deposits in the Colorado Mineral Belt / by Charles G. Cunningham ... [et |  | | Report (issue) | | CSts.,NW. DENVER, Colorado-Federal Bldg., Rm. 169,1961 Stout St. LOS ANGELES, California-Federal Eldg.,... Rm. 7638,300 N. Los Angeles St. MENLO PARK, California-Bldg. 3 (Stop 533), Rm. 3128. 345 Middlefield... Rm. 8105,125 South State St. SAN FRANCISCO, California-Customhouse, Rm. 504,555 Battery St. SPOKANE...ROLLA, Missouri-1400 Independence Rd. DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center FAIRBANKS...Part II Geology and Gold Deposits of the Oatman District, Northwestern Arizona By ED DEWITT, JON P. THORSON |  | | Journal (article/letter/editorial) | | bornite, chalcocite, and trace tetrahedrite, sphalerite, and native copper. 2.2. Sora MoâCu porphyry...chalcopyrite and small amounts of sphalerite, galena, and tetrahedrite. The porphyry stock is characterized by potassic...chalcopyrite with pyrite, molybdenite and traces sphalerite, tetrahedrite, and hydrothermal rutile. Dominant...pyâpyrite, qzâquartz, rtârutile, serâsericite, slâsphalerite, tmâtourmaline. V.I. SotnikoĂ et al.r Ore Geology...accompanied by pyrite, chalcopyrite and traces sphalerite, rutile, tetrahedrite. 101 3. Analytical methods |  | | Journal (article/letter/editorial) | | Mountain, Galore Creek), Allard Stock, La Plana Mountains and Copper King Mine in USA [12,13], Skouries porphyry...with inclusion of gold, chalcopyrite, galena, sphalerite and arsenopyrite within the alteration zone,...deposits and American Southwest province (Bagdad, AZ, USA), suggesting a greater mantle component [63,64]....work (70/4/4535). Many thanks are expressed to the Mining Company TVX for providing representative samples...Mineralization; Society of Economic Geologists: Littleton, CO, USA, 1998. 3. Bookstrom, A.A.; Carten, R.B.; Shannon |  | PaĆĄava, Jan, VymazalovĂĄ, Anna, KoĆĄler, Jan, Koneev, Rustam I., Jukov, Alexander V., Khalmatov, Rustam A. (2010) Platinum-group elements in ores from the Kalmakyr porphyry CuâAuâMo deposit, Uzbekistan: bulk geochemical and laser ablation ICP-MS data. Mineralium Deposita, 45 (5) 411-418 doi:10.1007/s00126-010-0286-7 | Journal (article/letter/editorial) | | granodiorite porphyry, which contains galena, sphalerite, chalcopyrite, tetrahedrite, and gold. Palladium...Cordillera of British Columbia; Allard Stock, La Plata Mountains and Copper King in USA; Majdanpek, Veliki Krivelj...field and is a part of the ChatkalâKurama ore district in eastern Uzbekistan (Fig. 2). The Cu mineralization...1931 to 1941 and between 1947â1951, and open pit mining commenced at Kalmakyr in 1954. Additional exploration...epithermal deposits in the ChatkalâKurama ore district in Uzbekistan also show a strong Ir and Pd depletion |  | Wang, Minfang, Gutzmer, Jens, Michalak, Przemyslaw P., Guo, Xiaonan, Xiao, Fan, Wang, Wei, Liu, Kun (2014) PGE geochemistry of the Fengshan porphyryâskarn CuâMo deposit, Hubei Province, Eastern China. Ore Geology Reviews, 56. 1-12 doi:10.1016/j.oregeorev.2013.07.006 | Journal (article/letter/editorial) | | located in the western part of the Jiurui CuâAuâMo district in the Late Mesozoic MiddleâLower Yangtze River...associated with the Fengshan granodiorite porphyry stock (149â138 Ma), where two types of ore bodies (porphyry...world's production currently stems from only ïŹve mining districts linked to ïŹve intrusive complexes: the...Dyke in Zimbabwe, the Stillwater deposit in the USA, the Norilsk-Talnakh deposit in Russia, the Sudbury...Mountain, Galore Creek), Allard Stock, La Plana Mountains and Copper King Mine in the USA, Skouries porphyry |  | | Journal (article/letter/editorial) | | mineralization consisting of pyrite, chalcopyrite, galena, sphalerite and arsenopyrite within the alteration zone is...pyrite-rich halo, around a central principal porphyry stock, which is characterized by potassic-type alteration...Sk.Po.or. and Ćœb. the contact between porphyry stock and country rocks ĆœU Sk.B.or., and finally chalcopyrite...orthoclase Medet pyrite, chalcopyrite Ćœgalena, sphalerite . Assarel oxidized zone Assarel potassicâ propyliticâ...Cordillera Copper Mountain highly alkaline CuqAu Allard, La Plana highly alkaline CuqAu"Mo Copper King |  | | 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 |  | | Book | | 310 Pillsbury Drive S. E. Minneapolis, MN 55455, USA Volumes 1 to 9 in this series appeared under the...are of considerable aid to the exploration and mining geologist in areas of known mineralization, but...advanced undergraduate and graduate levels, and to mining and exploration geologists. lowe no small debt...3 Limestone Replacement Deposits of Leadville, Colorado ..................... . 2.1.4 Discussion and Suggestions.................. . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .......................... |  | | Journal (article/letter/editorial) | | relatively simple. It is composed of pyrite, galena, sphalerite, magnetite, specularite, chalcopyrite, native...ÎŽ34S values of pyrite, chalcopyrite, galena, and sphalerite from the disseminated sulfide and gold zones...been identified in the 63 km-long by 21 km-wide district. Most of them occur within the Hercynian Shuiquangou...occurrences in the Dongping district. It is typical of all occurrences throughout the district in most features...of the deposit have made it a highly productive mining property (Dong Jianle, written com., 1997). Initial |  | | Journal (article/letter/editorial) | | Porgeramagmaticwaters.Isotopiccompositions of vein pyrite,sphalerite,andgalena(âą348= 2.4-5.4%0)showa similarrangeto...Disseminations, veinlets, Euhedralauriferous Sphalerite,galena pyrite Calcite-dolomite, sericite, quartz...veinlets, breccia matrix Coarse auriferous pyrite, sphalerite, galena, arsenopyrite Marcasite,pyrargyrite...breccia matrix Proustite- pyrargyrite, Pyrite, sphalerite, Calcite-dolomite, quartz galena,tetrahedrite...was extractedfor analysisfrom in 100 percent sphalerite,whichis opaqueto visiblelightbut trans- carbonatemineralsby |  | | Journal (article/letter/editorial) | | AlkalineRock-RelatedMineralizationin the Nogal Mining District, Lincoln County, New Mexico ScoTt E. DOUGLASS AND ANDREW...different formsof hydrothermalalterationoccur in the district. The first is the regionalpropylitic alterationof...renewed interest in the area with several ple Creek, Colorado,and Zortman-Landusky, Mon- sitesbeingtargetedfor...1991; MiningRecord,199'2).Previousstudies Lincoln County, New Mexico, hosts 11 alkaline of the area have...igneouscenterswhosecharacteristics and mineral the district (Lindgrenet al., 1910; Griswold, 1959; potentialare |  | | Journal (article/letter/editorial) | | North American Cordillera, e.g. in the Allard stock, Colorado (Werle et al. 1984) and at Salt Chuck,...sills of Caledonian age located in the Assynt district of the Moine Thrust Belt of north-west Scotland...syenites punch through the early suite and may have a stock-like form. The Loch Borralan complex (430±4 Ma)...veins and shears. Minor amounts of galena and sphalerite have also been found with a similar habit to...Pd/Pt Rh (ppb) Au (ppb) Ag As Ba Bi Ca Ce Co Cr Cu Fe La Mn Mo Nb Ni Pb Rb Sb Sn Sr Th Ti U V W Y Zn Zr Syenites |  | | Report (volume) | | of the northern part of the Paradox Basin and the La Sal Mountain laccolith complex. See page 4 for generalized...Image of Northern Part of the Paradox Basin and the La Sal Mountains Laccolith Complex, by K. Eric Livo...Geophysical Setting of the Colorado Plateau Neogene Uplift and Radial Collapse of the Colorado Plateau-Regional...by Kim R. Sullivan Reevaluation of the Central Colorado Plateau Laccoliths in the Light of New Age Determinations...Lineaments in the Northern Paradox Basin, Utah and Colorado, by Jules D. Friedman Processes of Laccolithic |  | LeFort, D., Hanley, J., Guillong, M. (2011) Subepithermal Au-Pd Mineralization Associated with an Alkalic Porphyry Cu-Au Deposit, Mount Milligan, Quesnel Terrane, British Columbia, Canada. Economic Geology, 106 (5) 781-808 doi:10.2113/econgeo.106.5.781 | Journal (article/letter/editorial) | | platinum-group element (PGE) tellurides, galena, sphalerite, barite, and chalcopyrite as inclusions in pyrite...tellurides, arsenides and antimonides, galena, sphalerite, chalcopyrite, and various Au-Ag-Te-Bi minerals...ranges in salinity and homogenization temperature. LA-ICP-MS analyses indicate that the fluids were highly...porphyry of OK Tedi in Papua New Guinea and the Cadia district porphyries in Australia (Bamford, 1972; Wilson...is dated at 183 ± 4 Ma, excluding the Heidi Lake stock (Mortensen et al., 1995; Nelson and Bellefontaine |  | Cooke, D. R., Wilson, A. J., House, M. J., Wolfe, R. C., Walshe, J. L., Lickfold, V., Crawford, A. J. (2007) Alkalic porphyry Au â Cu and associated mineral deposits of the Ordovician to Early Silurian Macquarie Arc, New South Wales. Australian Journal of Earth Sciences, 54 (2) 445-463 doi:10.1080/08120090601146771 | Journal (article/letter/editorial) | | This article was downloaded by: [University of California, San Francisco] On: 24 November 2014, At: 22:53...Australia c CSIRO Division of Exploration and Mining , PO Box 1130, Bentley, WA, 6102, Australia Published...Exploration and Mining, PO Box 1130, Bentley, WA 6102, Australia. Downloaded by [University of California, San...associated with alkalic intrusions in the Cadia district of New South Wales have defined the Late Ordovician...porphyry deposits. District/deposit Mt Downloaded by [University of California, San Francisco] at 22:53 |  | | Report (volume) | | 701 C St. DENVER, Colorado-Federal Bldg., Rm. 169, 1961 Stout St. LAKEWOOD, Colorado-Federal Center, Bldg...Bldg. 810 MENLO PARK, California-Bldg. 3 (Stop 533), Rm. 3128, 345 Middlefield Rd. RESTON, Virginia-503...Rm. 8105, 125 South State St. SAN FRANCISCO, California-Customhouse, Rm. 504, 555 Battery St. SPOKANE...ROLLA, Missouri-1400 Independence Rd . âą DENVER, Colorado-Map Distribution, Bldg. 810, Federal Center âą...Nickel-Bearing Laterites in Southern Oregon and Northern California By Michael P. Foose F. Platinum-Group Elements-Occurrences |  | Alexis N'dri, Koffi, Zhang, Dehui, Zhang, Tao, Soh Tamehe, Landry, Serge Kouamelan, Kouamelan, Wu, Mingqian, Roger Assie, Konan, Koua, Kadio Aka D., Nicaise Kouamelan, Alain, Zhang, Jilin (2021) Gold mineralization in the northern margin of the North China Craton: Influence of alkaline magmatism and regional tectonic during Middle Paleozoic-Mesozoic. Ore Geology Reviews, 133. 103969pp. doi:10.1016/j.oregeorev.2020.103969 | Journal (article/letter/editorial) | | explains the great interest of researchers and mining industries in the NNCC during the past decade....These 3.1. Hadamengou gold deposit The Daqingshan district consists of large-scale gold deposits such as...zircon U-Pb; Miao et al., 2000). The Xishadegai stock is situ ated at the northeast (ca 1.5 km) of the...porphyritic moyite with age of 232.2 ± 4.1 Ma (Sun, 2016; LA-ICP-MS zircon U-Pb). The Shadegai alkaline intrusion...2. Dongping gold deposit The Zhangjiakou gold district hosts more than 25 deposits and oc currences |  | | Conference Proceedings (Volume) | | very north of Sweden. Mining operations started in 1968 and the current mining depth is 430 m. The open...area of the Kristineberg VHMS deposit, Skellefte district, Sweden .......................................A. Massive Zn-Cu-Pb deposits in the RĂžros ore district, Norway: setting and formation ................Matos The Jörn granitoid complex, Skellefte mining district, Sweden: petrography, lithogeochemistry and...for VHMS deposits, Kristineberg area, Skellefte District, Sweden ..................................... |  | Pass, H. E., Cooke, D. R., Davidson, G., Maas, R., Dipple, G., Rees, C., Ferreira, L., Taylor, C., Deyell, C. L. (2014) Isotope Geochemistry of the Northeast Zone, Mount Polley Alkalic Cu-Au-Ag Porphyry Deposit, British Columbia: A Case for Carbonate Assimilation. Economic Geology, 109 (4) 859-890 doi:10.2113/econgeo.109.4.859 | Journal (article/letter/editorial) | | Greece (Skouries; Kroll et al., 2002), and Colorado (Allard Stock; Werle, 1984). Alkalic magmas have a stronger...town Zippa Mountain Hazelton 55°0â0âN Lorraine USA 55°0â0âN Mt. Milligan Burns Lake Prince George ...Mountain Copper Mountain -Ingerbelle -Ingerbelle Canada USA 50°0â0âN rocks in circum-Pacific arc terranes (MĂŒller...silica-oversaturated alkalic systems include the Cadia district in New South Wales and the Mars deposit in the...Lake, British Columbia (Fig. 1). This open-pit mining operation is an ideal location to study the anatomy |  | | Book | | particularly since the commencement of the very lucrative mining of the Palabora carbonatite for copper, and a host...by-products, and it is the exploration efforts of mining companies that have led to the discovery of many...improve helped with useful i n formation on the V la co Province ments suggested by my colleague D.R.C...Thomas Lake 9 H e n n i nga Lake 10 Kaminak Lake '1 1 La t Lake 12 Atlin 13 Atsutla Range 14 Mount Edziza...ke and Portage Seabrook Lake Ki rkland Lake Otto stock Venturi Township Kusk Lake Nemag Lake Mckim Township |  | | Book | | A Comprehensive Example: The Cree de District, Colorado, USA 4.11. Summary 4.12. Recommended Reading...addition to improved techniques of exploration, mining, extraction, and management, by a better understanding...culminating with the Creede vein type deposit (Colorado, USA) as a comprehensive example. The second part...Intrusions related to flood basalts Duluth Complex, USA Nori!' sk-Tanakh, Siberia Ni-sulfide Ni-Cu sulfide...Bushveld Complex, South Africa Stillwater Complex, USA Great Dyke, Zimbabwe Sudbury Complex, Canada Chromite |  | | Report (issue) | | more than 2 million oz of gold in the New World district (see map on p. ii). Exploration for gold, platinum-group... Y»llowston» National Park Red Lodgechromite district WY 109° -I r 45°45' Permissive tracts forcopper+gold+...porphyry copper deposits. L 111° J 45' New Worid district Permissive tracts for selected deposit types...presence of various types of mineral deposits. Mining and exploration history and locations and descriptions...copper, lead, and zinc resources. Historically, mining districts in the ABSA produced gold from lode and |
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