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Bayan Goya

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Porphyry copper prospect in Ömnögovi, Mongolia

Names and other identifiers

GMRAP ID 8608
Tract name Oyu Tolgoi (142pCu8506)
Site status prospect

Geographic location

Country Mongolia
State or province Ömnögovi
Geographic location 101.7067, 43.5873
Geologic map unit 101.7067, 43.5873
Nearby data
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Geologic information

Deposit type Porphyry copper
Age determination method Geologic inference
Age range ~290 Ma (Variscan orogeny)
Age reference geologic inference
Associated rocks volcanic tuff
Tectonic setting island arc
Stratigraphic age Early Permian

Commodity and development information

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

Reference information

Comments Grab samples to 0.98% Cu and 5.5 g/t Au. Copper oxide mineralization in altered volcanic tuff and siltstone; strike length of 1.5 km. Drilling in 2005. Location is about 30 km or more NW of the Asia Gold and BHP Billiton JV property, according to Peréz (2007). Mineral site location possibly incorrect. This location is 0.5 km from Zargyn Khar Ovoo which is included in Dejidmaa and others (2002) as MRAM #18 and Nokleberg and others (1999). Zargyn Khar Ovoo is variably referred to a porphyry Cu (Dejidmaa and others, 2002) and replacement Cu (Nokleberg and others (1999).
Study area name Central Asian Orogenic Belt
References Asia Gold Corp. (2005); Peréz (2007); Nokleberg and others (1999); Dejidmaa and others (2002)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)
Asia Gold Corp., 2005, Asia Gold starts drilling program to test copper-gold targets in the Gobi region, Mongolia: Asia Gold Corp. press release, August 25, 2005, 3 p., accessed February 29, 2012, at http://www.southgobi.com/i/pdf/2005-08-25_NR.PDF.
Dejidmaa, G., Bujinlkham, B., Ganbaatar, T., Oyuntuya, N., Enkhtuya, B., Eviihuu, A., and Monkh-Erdene, N., 2002, Distribution map of mineral deposits and occurrences in Mongolia: Ulaanbaatar, Mongolia Mineral Resources Authority, Geologic Information Center, 540 p., 12 sheets, scale 1:1,000,000.
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/.)Peréz, J.L., ed., 2007, Exploring our Environment—Extended Abstracts, in International Applied Geochemistry Symposium (IAGS), 23d, Oviedo, Spain, June 14–19, 2007, Proceedings: Oviedo, Spain, University of Oviedo, 231 p. (Also available at http://www.appliedgeochemists.org/images/stories/IAGS_2007/Extended_Abstracts.pdf.)