Kulbich

Porphyry copper prospect in Respublika Altay, Russian Federation

Names and other identifiers

GMRAP ID 8641
Alternate names Kulbichskoe, Kul'bichskoe
Tract name Mongol-Altai (142pCu8507)
Site status prospect

Geographic location

Country Russian Federation
State or province Respublika Altay
Geographic location 86.752, 51.724
Geologic map unit 86.752, 51.724
Nearby data

Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range ~290 Ma (Variscan orogeny)
Age reference geologic inference
Minerals barite, chalcopyrite, fahlore, magnetite, molybdenite, pyrite, sericite, sphalerite
Associated rocks contact zone of granite porphyry and volcanic-sedimentary rock
Tectonic setting continental margin
Stratigraphic age Early Permian

Commodity and development information

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

Reference information

Comments Multiple grades reported (Andrei F. Chitalin, written commun., 2009): 0.2–0.3% Cu, 0.005–0.01% Mo. 0.46–0.61% Cu (with an average of 0.5% Cu); 0.01–0.13% Mo (with an average of 0.05% Mo); 0.01–3.3 g/t Au (with an average of 0.2 g/t Au). Deposit minerals occur in two zones of hydrothermally-altered rock up to 5-6 km long and 200-500 m wide. Deposit minerals occur in streaks and disseminations along with some quartz and quartz-carbonate veins also are noted. Content of Cu and Mo in deposits is irregular with the result that separate lenses of bodies formed. Source of prospect indicates that it may be Cu-Mo subtype. Host rock is altered to silica, sericite, pyritie, carbonate and locally to barite. Deposit in an inner contact zone in a stock of Devonian granite porphyry and Late Cambrian volcanic-sedimentary host rock.
Study area name Central Asian Orogenic Belt
References Nokleberg and others (1999); Nokleberg and others (2003); Nokleberg and others (2006); Rundkvist (2001); Domarev and Vysokoostrovskaya (1959); Nikolskaya (1961); Kuznetsov and others (1966); Andrei F. Chitalin (written commun., 2009)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)
Domarev, V.S., and Vysokoostrovskaya, E.B., 1959, Near-surface intrusions and age of granitoids of Uimon depression (Gorny Altai): Izvestia, USSR Academy of Sciences Geology Series, no. 2, p. 43–58. [In Russian.]
Kuznetsov, V.A., Distanov, E.G., Obolenskiy, A.A., Sotnikov, V.I., and Tychinskiy, A.A., 1966, Analysis of genesis of endogenous metallogeny of Altai-Sayan region: Novosibirsk, Nauka, 155 p. [In Russian.]
Nikolskaya, Zh.D., 1961, Ore-formation conditions of copper-molybdenum stockwork deposit in Altai, in Proceedings on Geology and Mineralogy of Ore Deposits of USSR: Leningrad, Transactions of All-Union Geological Institute (VSEGEI), New Series, v. 60, p. 47–50. [In Russian.]
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 http://pubs.usgs.gov/of/1999/of99-165/.)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/.)
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.