granodiorite and granite massif and porphyry in stocks and dikes
Late Permian–Early Triassic
Commodity and development information
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
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)
Mihalasky, Ludington, Hammarstrom, and others (2015)
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. 917. [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.