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Chengmenshan

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Porphyry copper deposit in Jiangxi, China

Names and other identifiers

GMRAP ID 467
Tract name Coastal Pacific (142pCu8704)
Site status deposit

Geographic location

Country China
State or province Jiangxi
Geographic location 115.805000305, 29.68129921
Geologic map unit 115.805000305, 29.68129921
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 142.3Ma
Age determination method Re-Os
Age range 142.3 ±2.3 Ma
Age reference Mao and others (2006)
Minerals bornite, chalcocite, chalcopyrite, covellite, galena, gold, marcasite, molybdenite, pyrite, pyrrhotite, sphalerite
Associated rocks andesite porphyry, granodiorite porphyry, monzogranite porphyry, quartz monzonite porphyry, quartz porphyry, tonalite porphyry
Tectonic setting postconvergence
Stratigraphic age Early Cretaceous

Commodity and development information

Development status Producer
Major commodities Cu, Mo, Au
Tonnage (Mt) 409Mt
Cu grade (%) 0.75%
Mo grade (%) 0.047%
Au grade (g/t) 0.24g/t
Ag grade (g/t) 9.9g/t
Contained copper 3,070,000t
Gold-Moly ratio 5.1

Reference information

Comments Mined since 2002 by open pit; new estimate of 5 Mt of Cu resource and 200 kt Mo resource (Wu and others, 2009). Contains karst and massive sulfide ores in addition to porphyry. Yangtze River Metallogenic Belt. Mining.
Study area name East Asia Mesozoic
References Ge and others (1990); Huang and others (1990); Mao and others (2006); Metal Mining Agency of Japan (1998); Pan and Dong (1999); Qui and others (1989); Zhang and Rui (1992); Luo and Yang (2007); Singer and others (2008)
Site reference Ludington, Mihalasky, and others (2012)
Ge Chaohua, Sun Haitian, and Zhou Taihe, 1990, Copper deposits of China, in Mineral deposits of China, v. 1: Beijing, Geological Publishing House, p. 1–106. [In Chinese.]
Huang Enbang, Zhang Naitang, and Luo Zhaosheng, 1990, The genesis of the Chengmenshan and Wushan copper deposits: Mineral Deposits, v. 9, no. 4, p. 291–300. [In Chinese, English abstract.] (Abstract also available at http://en.cnki.com.cn/Article_en/CJFDTotal-KCDZ199004000.htm.)Luo Jian-an, and Yang Guo-cai, 2007, Geological characteristics of Chengmenshan copper deposit, Jiangxi and its ore genesis: Mineral Resources and Geology, v. 21, no. 3, p. 284–288. [In Chinese, English abstract.] (Abstract also available at http://en.cnki.com.cn/Article_en/CJFDTotal-KCYD200703013.htm.)Mao, Jingwen; Wang, Yitian; Lehmann, Bernd; Yu, Jinjie; Du, Andao; Mei, Yanxiong; Li, Yongfeng; Zang, Wenshuan; Stein, H.J.; and Zhou, Taofa, 2006, Molybdenite Re-Os and albite 40Ar/39Ar dating of Cu-Au-Mo and magnetite porphyry systems in the Yangtze River valley and metallogenic implications:Ore Geology Reviews, v. 29, p. 307–324. (Also available at http://dx.doi.org/10.1016/j.oregeorev.2005.11.001.)
Metal Mining Agency of Japan, 1998, Mineral Resources Map of Asia: Metal Mining Agency of Japan (MMAJ), 43 p., 1 sheet, scale 1:10,000,000.
Pan, Yuanming, and Dong, Ping, 1999, The Lower Changjiang (Yangzi/Yangtze River) metallogenic belt, east central China—Intrusion- and wall rock-hosted Cu-Fe-Au, Mo, Zn, Pb, Ag deposits: Ore Geology Reviews, v. 15, p. 177–242. (Also available at http://dx.doi.org/10.1016/S0169-1368(99)00022-0.)Qui Xiaoping, Pei Rongfu, Kejian Ji, and Wu Xueham, 1989, Geological characteristics of copper mineralization, Jiujiang-Ruichang Area, Jiangxi province, China: Chinese Journal of Geochemistry, v. 8, no. 3, p. 228–244. (Also available at http://dx.doi.org/10.1007/BF02840356.)Singer, 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 http://pubs.usgs.gov/of/2008/1155/.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 http://dx.doi.org/10.1111/j.1755-6724.1992.mp5001004.x.)