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Ganjiang

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Porphyry copper prospect in Xizang, China

Names and other identifiers

GMRAP ID 583
Alternate names Chongjiang; part of Nimu project
Tract name Gangdese (142pCu8712)
Group name Ganjiang
Included sites Xiaoing, Ronggangmeng, Bairong
Site status prospect

Geographic location

Country China
State or province Xizang
Geographic location 89.95138, 29.595794
Geologic map unit 89.95138, 29.595794
Nearby data
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Geologic information

Deposit type Porphyry copper
Age (Ma) 13.99Ma
Age determination method Re-Os molybdenite
Age range 13.99 ±0.16 Ma (Re-Os molybdenite); 13.5 ±1.0 Ma (Ar-Ar biotite)
Age reference Qu and others (2007); Hou and others (2004); Li, Qu and others (2004)
Minerals azurite/malachite, biotite, bornite, chalcocite, chalcopyrite, chlorite, covellite, malachite, molybdenite, molybdite, pyrite, sericite, sphalerite, tenorite, tetrahedrite
Associated rocks monzogranite porphyry, microdiorite, quartz diorite porphyry, granite, pyroclastic sediments
Tectonic setting postconvergence
Stratigraphic age Miocene

Commodity and development information

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

Reference information

Comments Tibet. Gangdese porphyry copper belt. Exposed. Central China Goldfields bought out by underlying owner (Sichuan Bureau of Metallurgy and Geological Exploration) in 2009. Hou and Cook (2009) give a speculative resource of 333 Mt at 0.45% Cu. Singer and others (2008) gave 74.6 Mt at 0.67% Cu, 1.2 g/t Au, and 5 g/t Ag - probably an oxide resource. Singer and others (2008) listed as a deposit, but was based on incomplete exploration. Provisional resource of 47 Mt at 1.1% Cu (oxide); also reported as 1.5 Mt of Cu, at 0.45% Cu, 0.12 g/t Au, 5 g/t Ag. Exploration.
Study area name Tibetan Plateau
References Central China Goldfields (2006); Central China Goldfields (2008); Gao and others (2003); Hou, Mo and others (2003); Qu and others (2001); Qu and others (2007); Rui, Wang and Wang (2002b); Rui and others (2003); Wang and others (2002); Zheng, Duo, Cheng and others (2007); Singer and others (2008); Hou and Cook (2009); Hou and others (2004); Li, Qu and others (2004)
Site reference Ludington, Hammarstrom, and others (2012)
Central China Goldfields, 2006, Annual report and accounts 2006: accessed March 30, 2011, at http://www.gggresources.com/annual-report-2006. [Web page no longer available.]
Central China Goldfields, 2008, Annual report and accounts 2008: accessed March 30, 2011, at http://www.gggresources.com/annual-report-2008. [Web page no longer available.]
Gao Yongfeng, Hou Zengqian, Wei Ruihua, and Zhao Rongsheng, 2003, Post-collisional adakitic porphyries in Tibet—Geochemical and Sr-Nd-Pb isotopic constraints on partial melting of oceanic lithosphere and crust-mantle interaction: Acta Geologica Sinica (English edition), v. 77, p. 194–203. [In Chinese, English abstract.] (Abstract also available at http://dx.doi.org/10.1111/j.1755-6724.2003.tb00562.x.)Hou, Zengqian, and Cook, N.J., 2009, Metallogenesis of the Tibetan collisional orogen—A review and introduction to the special issue: Ore Geology Reviews, v. 36, p. 2–24. (Also available at http://dx.doi.org/10.1016/j.oregeorev.2009.05.001.)Hou Zengqian, Qu Xiaoming, Wang Shuxian, Du Andao, Gao Yongfeng, and Huang Wei, 2004, Re-Os age for molybdenite from the Gangdese porphyry copper belt on Tibetan plateau—Implication for geodynamic setting and duration of the Cu mineralization: Science in China Series D—Earth Sciences, v. 47, no. 3, p. 221–231. (Also available at http://earth.scichina.com:8080/sciDe/CN/10.1360/02yd0487#.)Hou ZengQian, Mo XuanXue, Gao YongFeng, QuXiaoMing, and Meng XiangJin, 2003, Adakite, a possible host rock for porphyry copper deposits—Case studies of porphyry copper belts in Tibetan Plateau and in northern Chile: Mineral Deposits, v. 22, no. 1, p. 1–12. [In Chinese, English abstract.] (Abstract also available at http://en.cnki.com.cn/Article_en/CJFDTOTAL-KCDZ200301000.htm.)Li, Shengrong; Qu, Wenjun; Yuan, Wanming; Deng, Jun; Hou, Zhengqian; and Du, Andao, 2004, Re-Os dating of the porphyry copper deposits in southern Gangdese metallogenic belt, Tibet, in Himalaya-Karakoram-Tibet Workshop, 19th, Niseko, Japan, 2004, Proceedings: Himalayan Journal of Sciences, v. 2, no. 4 (special issue), p. 192–193. (Also available at http://www.nepjol.info/index.php/HJS/article/viewFile/871/886.)Qu Xiaoming, Hou Zengqian, and Huang Wei, 2001, Is Gangdese porphyry copper belt the second “Yulong” copper belt?: Mineral Deposits, v. 20, no. 4, p. 353–366. [In Chinese, English abstract.] (Abstract also available at http://en.cnki.com.cn/Article_en/CJFDTotal-KCDZ200104009.htm.)Qu, Xiaoming; Hou, Zengqian; Zaw, Khin; and Li, Youguo, 2007, Characteristics and genesis of Gangdese porphyry copper deposits in the southern Tibetan Plateau—Preliminary geochemical and geochronological results: Ore Geology Reviews, v. 31, p. 205–223. (Also available at http://dx.doi.org/10.1016/j.oregeorev.2005.03.012.)Rui Zongyao, Hou Zengqian, Qu Xiaoming, Zhang Lisheng, Wang Longsheng, and Liu Yulin., 2003, Metallogenic epoch of the Gangdese porphyry copper belt and uplift of the Qinghai-Tibet plateau: Mineral Deposits, v. 22, no. 3, p. 224–232. [In Chinese, English abstract.] (Abstract also available at http://en.cnki.com.cn/Article_en/CJFDTotal-KCDZ200303000.htm.)
Rui, Z., Wang, L., and Wang, Y., 2002b, Porphyry copper deposit models in China, in Workshop on Assessing Undiscovered Mineral Resources, Beijing, June 24–28, Proceedings: China Geological Survey and U.S. Geological Survey, p. 42–52.
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/.Wang Xiao-chun, Yan Zi-gui, Zhou Wei-De, Jia Xiang-kan, Li Zuo-hua, Wen Jun, Xu De-zhang, and Yuan Jian-fei, 2002, Preliminary study on the geological features of porphyry-type copper deposits in northwestern Nimu, central Gangdisi belt, Xizang, China: Geology and Prospecting, v. 38, no. 1, p. 5–8. [In Chinese, English abstract.] (Abstract also available at http://en.cnki.com.cn/Article_en/CJFDTOTAL-DZKT200201002.htm.)Zheng, Youye; Duo, Ji; Cheng, Shunbo; Gao, Shunbao; and Dai, Fanghua, 2007, Progress in porphyry copper exploration from the Gangdise belt, Tibet, China: Frontiers of Earth Science in China, v. 1, p. 226–231. (Also available at http://dx.doi.org/10.1007/s11707-007-0028-z.)