Porphyry molybdenum-copper (Cu-Mo) deposit in Shaanxi, China

Names and other identifiers

Tract name East Qinling (142pCu8705)
Site status deposit

Geographic location

Country China
State or province Shaanxi
Geographic location 109.95400238, 34.332298279
Geologic map unit 109.95400238, 34.332298279
Nearby data

Geologic information

Deposit type Porphyry molybdenum-copper
Deposit subtype Cu-Mo
Age (Ma) 138.4Ma
Age determination method Re-Os
Age range 138.4 ±0.5 Ma
Age reference Stein and others (1997)
Minerals chalcopyrite, molybdenite, sphalerite, scheelite
Associated rocks granite, quartz monzonite, granodiorite
Tectonic setting postconvergence
Stratigraphic age Early Cretaceous

Commodity and development information

Development status Producer
Major commodities Mo, Cu
Tonnage (Mt) 1,400Mt
Cu grade (%) 0.028%
Mo grade (%) 0.091%
Contained copper 390,000t
Gold-Moly ratio -9999

Reference information

Comments Deposit is extremely difficult to classify - has characteristics of both porphyry Cu, Climax Mo, and calc-alkaline Mo porphyry. Cu grade from Yan and others (2007); they give Cu resource of 221 kt. Mining.
Study area name East Asia Mesozoic
References Huang and others (1988); Zhu and others (2010); Carten and others (1993); Stein and others (1997); Yan and others (2007)
Site reference Ludington, Mihalasky, and others (2012)
Carten, R.B., White, W.H., and Stein, H.J., 1993, High-grade granite-related molybdenum systems—Classification and origin, in Kirkham, R.V., Sinclair, W.D., Thorpe, R.J., and Dike, J.M., eds., Mineral deposit modeling: Geological Association of Canada Special Paper 40, p. 521–554.
Huang, Dianhao; Wu, Chengyu; and Nie, Fengjun, 1988, Geological features and genesis of the Jinduicheng porphyry molybdenum deposit, Shaanxi Province, China: Chinese Journal of Geochemistry, v. 7, p. 136–147. (Also available at http://dx.doi.org/10.1007/BF02894967.)Stein, H.J., Markey, R.J., Morgan, J.W., Du, A., and Sun, Y. 1997, Highly precise and accurate Re-Os ages for molybdenite from the East Qinling molybdenum belt, Shaanxi province, China: Economic Geology, v. 92, p. 827–835. (Also available at http://dx.doi.org/10.2113/gsecongeo.92.7-8.827.)Yan Guangsheng, Qiu Ruizhao, Lian Changyun, Nokleberg, W.J., Cao Li, Chen Xiufa, Mao Jingwen, Xiao Keyan, Li Jinyi, Xiao Qinghui, Zhou Su, Wang Mingyan, Liu Dawen, Yuan Chunhua, Han Jiuxi, Wang Liangliang, Chen Zhen, Chen Yuming, Xie Guiqing, and Ding Jianhua, 2007, Quantitative assessment of the resource potential of porphyry copper systems in China: Earth Science Frontiers, v. 14, p. 27–41. (Also available at http://dx.doi.org/10.1016/S1872-5791(07)60034-7.)Zhu, Laimin; Zhang, Guowei; Guo, Bo; Lee, Ben; Gong, Hujun; and Wang, Fei, 2010, Geochemistry of Jinduicheng Mo-bearing porphyry and deposit, and its implications for the geodynamic setting in east Qinling, P.R. China: Chemie der Erde, v. 70, p. 159-174. (Also available at http://dx.doi.org/10.1016/j.chemer.2009.12.003.)