Porphyry copper prospect in Nei Mongol, China

Names and other identifiers

Tract name Solonker (142pCu8501)
Site status prospect

Geographic location

Country China
State or province Nei Mongol
Geographic location 112.502, 42.2269
Geologic map unit 112.502, 42.2269
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 396Ma
Age determination method Ar-Ar biotite
Age range 396 ±2 Ma (Ar-Ar biotite); 358 ±2 Ma (Ar-Ar muscovite)
Age reference Li, Chen and others (2008)
Minerals bornite, chalcopyrite, galena, gold, molybdenite, pyrite, pyrrhotite, sphalerite
Associated rocks granodiorite porphyry
Tectonic setting continental margin
Stratigraphic age Devonian

Commodity and development information

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

Reference information

Comments Exploratory drilling and trenching define metal reserve >500,000 tons Cu (with a mean grade of 0.91% Cu); 20,000 tons Mo (with a mean grade of 0.06% Mo), and 30 tons Au (with a mean grade of 0.98g/t Au) according to Jian and others (2007). 2.84 g/t Ag (Singer and others, 2008). Classification in dispute. Jian and others (2007) describe as early VMS characterized by banded Cu-bearing pyrite ores with superimposed Silruian (?) porphyry Cu. Li, Lai and others (2007) and Li, Chen and others (2008) suggest it's an orogenic copper deposit.
Study area name Central Asian Orogenic Belt
References Chen and Tang (1993); Nie and others (2004); Li, Chen and others (2005); Li, Lai and others (2007); Li, Chen and others (2008); Nokleberg and others (2003); Nokleberg and others (2006); Zhang and Rui (1992); Zhang and others (1993); Kamitani and others (2007); Singer and others (2008); Jian and others (2007)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)
Chen, W., and, Tang, Z., 1993, The relationship between the formation of the copper-molybdenum deposits and the crustal evolution in China, in International Geological Congress, 29th, Kyoto, August 24–September 3, 1992, Mineral Resources Symposia Volume A: Tokyo, Resource Geology Special Issue, no. 15, p. 19–30.
Jian, P., Shi, Y.R., Zhang, F.Q., Miao. L.C., Zhang, L.Q., and Kr?ner, A., 2007, Geological excursion to Inner Mongolia, China, to study the accretionary evolution of the southern margin of the Central Asian orogenic belt: International Workshop and Field Excursion for IGCP-480, 3d, Beijing, China, August 6–15, 2007, Guidebook, IGCP-480, Field trip to Inner Mongolia, p. 49–72. (Also available at, Masaharu; Okumura, Kimio; Teraoka, Yoji; Miyano, Sumiko; and Watanabe, Yasusi, 2007, Mineral deposit data of mineral resources map of east Asia, with explanatory notes: Japan Geological Survey, National Institute of Advanced Industrial Science and Technology, 19 p., 1 map on 2 sheets, scale 1:3,000,000, accessed April, 2011, at, and at, Wen-Bo; Chen, Yan-Jing; and Lai, Yong, 2005, The Bainaimiao Cu deposit in Inner Mongolia, China—A possible orogenic-type Cu deposit, chap. 12-8 of Mao, Jingwen, and Bierlein, F.P., eds., Mineral deposit research—Meeting the global challenge: Society for Geology Applied to Mineral Deposits (SGA) Biennial Meeting, 8th, Beijing, August 18–21, 2005 [Proceedings], p.1321–1322. (Also available at WenBo, Chen YanJing, Lai Yong, and Ji JianQing, 2008, Metallogenic time and tectonic setting of the Bainaimiao Cu-Au deposit, Inner Mongolia: Acta Petrologica Sinica, v. 24, no. 4, p. 890–898. [In Chinese, English abstract.] (Abstract also available at WenBo, Lai Yong, Sun XiWen, and Wang BaoGuo, 2007, Fluid inclusion study of the Bainaimiao Cu-Au deposit in Inner Mongolia, China: Acta Petrologica Sinica, v. 23, no. 9, p. 2165–2176. [In Chinese, English abstract.] (Also available at Fengjun, Jiang Sihong, Zhang Yi, Liu Yan, and Hu Peng, 2004, Geological features of porphyry copper deposits in China-Mongolia border region and its neighbouring areas: Mineral Deposits, v. 23, no. 6, p. 176–189. [In Chinese, English abstract.] (Abstract 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, 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
Zhang, Hongtao; Pei, Rongfu; and Wu, Liangshi, 1993, Evolution of the porphyry copper deposits from Proterozoic to Cenozoic Era in China, in International Geological Congress, 29th, Kyoto, Japan, August 24–September 3, 1992, Proceedings: Tokyo, Society of Resource Geology, Resource Geology Special Issue, no. 15, Mineral Resources Symposia Volume A, p. 55–65.
Zhang Hongtao, and Rui Zongyao, 1992, Geologic setting of the porphyry copper deposit series of China: Acta Geologica Sinica (English edition), v. 5, no. 1, p. 59–73. (Also available at