Porphyry copper prospect in Irkutskaya oblast', Russian Federation

Names and other identifiers

Alternate names Agul'skoe
Tract name Mongol-Altai (142pCu8507)
Site status prospect

Geographic location

Country Russian Federation
State or province Irkutskaya oblast'
Geographic location 96.2167, 54.45
Geologic map unit 96.2167, 54.45
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range ~290 Ma (Variscan orogeny)
Age reference geologic inference
Minerals chalcopyrite, K-feldspar, magnetite, molybdenite, pyrite, pyrrhotite, scheelite, sericite, sphalerite
Associated rocks schist and gneiss intruded by a granitoid stock
Tectonic setting continental margin
Stratigraphic age Early Permian

Commodity and development information

Development status Occurrence
Major commodities Cu, Mo
Minor commodities Au, Ag
Gold-Moly ratio -9999

Reference information

Comments Average grade of 0.07% Mo. Occurrence, large from Nokleberg and others (2006). Associated with granite-granodiorite and leucogranite intrusions. Gangue minerals are quartz, feldspar, sericite, and carbonate. Consists of a Cu-Mo stockwork hosted in Proterozoic schist and gneiss intruded by a Paleozoic granitoid stock. The host rocks are altered to K-feldspar, silica, and sericite. A hydrothermal alteration zone contains some intensely brecciated and silicified areas.
Study area name Central Asian Orogenic Belt
References Petrov and Mkrtychan (1976); Nokleberg and others (1999); Nokleberg and others (2003); Nokleberg and others (2006); Rundkvist (2001); Andrei F. Chitalin (written commun., 2009)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)
Nokleberg, W.J., Naumova, V.V., Kuzmin, M.I., and Bounaeva, T.V., eds., 1999, Preliminary publications book 1 from project on mineral resources, metallogenesis, and tectonics of northeast Asia: U.S. Geological Survey Open-File Report 99-165, 6 p. and digital data, CD-ROM. (Also available at, 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, 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
Petrov, M.M., and Mkrtychan, A.K., 1976, Perspectives of extraction of mineral resources for molybdenum industry in Krasnoyarsk region: Prospect and Protection of Mineral Resources, no. 2, p. 21–24. [In Russian.]
Rundkvist, D.V., ed., 2001 [2002], Mineragenic map of Russian Federation and adjacent states (with the boundaries of former USSR): Russian Federation Ministry of Natural Resources, State Research and Development Enterprise (Aerogeologica), 49 p., Excel workbook, and 1 map on 18 sheets, scale 1:2,500,000, CD-ROM.