Porphyry copper prospect in Heilongjiang, China

Names and other identifiers

Tract name Gobi-Amur (142pCu8503)
Site status prospect

Geographic location

Country China
State or province Heilongjiang
Geographic location 125.768, 50.1166
Geologic map unit 125.768, 50.1166
Nearby data

Geologic information

Deposit type Porphyry copper
Age (Ma) 485Ma
Age determination method Re-Os molybdenite
Age range 521–476 Ma (Re-Os molybdenite); 510 Ma (SHRIMP)
Age reference Ge and others (2007)
Minerals albite, biotite, bornite, carbonate, chalcopyrite, chlorite, epidote, galena, K-feldspar, molybdenite, pyrite, sericite, sphalerite
Associated rocks granodiorite, granite, andesite, tuff, tuff breccia
Tectonic setting continental margin
Stratigraphic age Cambrian–Ordovician

Commodity and development information

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

Reference information

Comments Average grade of 0.44% Cu, 0.023% Mo; ore area contains partial reserves of 910,000 tons Cu and 40,000 tons Mo, with average grades of 0.48% Cu and 0.02% Mo (Zeng and others, 2013). May include skarn. Deposit related to a granodiorite intrusion with a central porphyritic zone dated at 311–283.1 Ma (Nokleberg and others, 2003). Deposit is 4 km SE of the Duobaoshan porphyry Cu deposit and is in the same district as the Duobaoshan deposit. Three major ore bodies in the Tongshan deposit were discovered in the mineralized zone. Sulfides occur as disseminated grains and veins. Intensely zoned alteration.
Study area name Central Asian Orogenic Belt
References Ge and others (2007); Zeng and others (2009); Zeng and others (2014); Yan and others (2007); Nokleberg and others (2003); Nokleberg and others (2006); Warren J. Nokleberg (written commun., 2006); Zhao and others (1997)
Site reference Mihalasky, Ludington, Hammarstrom, and others (2015)
Ge WenChun, Wu FuYuan, Zhou ChangYong, and Zhang JiHeng, 2007, Porphyry Cu-Mo deposits in the eastern Xing'an-Mongolian orogenic belt—Mineralization ages and their geodynamic implications: Chinese Science Bulletin, v. 52, p. 3416–3427. (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 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, Qingdong; Liu, Jianming; Yu, Changming; Ye, Jie, and Liu, Hongtao, 2009, Metal deposits in the Da Hinggan Mountains, NE China—Styles, characteristics, and exploration potential: International Geology Review, v. 53, no. 7, p. 846–878. (Also available at, Qing-Dong; Liu, Jian-Ming; Chu, Shao-Xion; Wang, Yong-Bin; Sun, Yan; Duan, Xiao-Xia; Zhou, Ling-Li; and Qu, Wen-Jun, 2014, Re-Os and U-Pb geochronology of the Duobaoshan porphyry Cu-Mo-(Au) deposit, northeast China, and its geological significance: Journal of Asian Sciences, v. 79, part B, p. 895–909. (Also available at Yiming, Bi Chengsi, Zou Xiaoqiu, Sun Yali, Du Andao, and Zhao Yumin, 1997, The Re Os isotopic age of molybdenite from Duobaoshan and Tongshan porphyry copper (molybdenum) deposits: Acta Geoscientica Sinica, v. 18, no. 1, p. 61–67. [In Chinese, English abstract.] (Abstract also available at