Zos Uul

Porphyry copper prospect in Dzavhan, Mongolia

Names and other identifiers

Alternate names Zost Tolgoi
Tract name Erdenet (142pCu8508a)
Site status prospect

Geographic location

Country Mongolia
State or province Dzavhan
Geographic location 98.3725, 48.726
Geologic map unit 98.3725, 48.726
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range Late Permian–Early Triassic
Age reference Singer and others (2008)
Minerals carbonate, chalcopyrite, chlorite, epidote, galena, magnetite, molybdenite, pyrite, sericite, sphalerite
Associated rocks granodiorite and granite massif and porphyry in stocks and dikes
Tectonic setting continental margin
Stratigraphic age Late Permian–Early Triassic

Commodity and development information

Development status Prospect
Major commodities Cu
Minor commodities Mo
Gold-Moly ratio -9999

Reference information

Comments Average grade of 0.2% Cu, 0.01% Mo. Resource of 100,000 t Mo. Combined Zos Uul and Zos Tolgoi. Consists of Late Permian and Early Triassic granitoids that intrude Paleoproterozoic metamorphic rock, Paleoproterozoic granite, Cambrian gabbro, granodiorite and granite and Early Devonian volcanic rock and Permian granosyenite and granite. Also occurring is extensive hydrothermal alteration with quartz-sericite and quartz replacements in bodies ranging up to 20 m by 40 m. Quartz-sulfide vein and stockwork occur in altered rock, particularly in the western, eastern and southern margins of the granite porphyry stock. The size of the stockwork is 2.0 km by 2.2 km.
Study area name Central Asian Orogenic Belt
References Bayandorj and others (written commun., 1980); Sotnikov and others (1981); Sotnikov and others (1985); Singer and others (2008); Nokleberg and others (2003); Nokleberg and others (2006); Nokleberg (2010)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)
Nokleberg, W.J., ed., 2010, Metallogenesis and tectonics of northeast Asia: U.S. Geological Survey Professional Paper 1765, 624 p., CD-ROM. (Also available at http://pubs.usgs.gov/pp/1765/.)Nokleberg, W.J., Bounaeva, T.M., Miller, R.J., Seminskiy, Z.V., and Diggles, M.F. eds., 2003, Significant metalliferous and selected non-metalliferous lode deposits, and selected placer districts of northeast Asia: U.S. Geological Survey Open-File Report 03-220, 422 p., CD-ROM. (Also available at http://pubs.usgs.gov/of/2003/of03-220/.)Nokleberg, W.J., Miller, R.J., and Diggles, M.F., eds., 2006, Geographic information systems (GIS) spatial data compilation of geodynamic, tectonic, metallogenic, mineral deposit, and geophysical maps and associated descriptive data for northeast Asia: U.S. Geological Survey Open-File Report 2006-1150, 11 p. and digital data, CD-ROM. (Also available at http://pubs.usgs.gov/of/2006/1150/.)Singer, D.A., Berger, V.I., and Moring, B.C., 2008, Porphyry copper deposits of the world—Database and grade and tonnage models, 2008: U.S. Geological Survey Open-File Report 2008-1155, [45] p. and digital data, accessed December 31, 2013, at http://pubs.usgs.gov/of/2008/1155/.
Sotnikov, V.I., Berzina, A.P., and Skorokhodov, V.N., 1981, Metallogeny of Cu and Mo of Mongolian Peoples’ Republic, in Questions of magmatism and metallogeny of Mongolian Peoples’ Republic: Novosibirsk, USSR Academy of Sciences, Institute of Geologyand Geophysics, Siberian Branch, p. 9–17. [In Russian.]
Sotnikov, V.I., Berzina, A.N., Zhamsran, M., Garamzhav, D., and Bold, D., 1985, Copper deposits of Mongolia: Novosibirsk, Nauka, Transactions of the Joint Soviet-Mongolian Scientific-Research Expedition, v. 43, 223 p.