The genesis of the Xiongcun coppergold deposit in southern Gangdise,Tibet: evidence from zircon UPb SHRIMP ages
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    Abstract:

    Based on a systematic petrographic and geochemical study and a zircon UPb SHRIMP age analysis, the authors revealed that the age of orehosting volcanics (XC011 rhyolitic tuff) is 180.4±3.5 Ma. This age suggests that the volcanic suite was formed in Early Jurassic instead of formerly widelyaccepted Late Cretaceous. The age of peripheral monzonitic granite (XTM041) is 46.6±0.6 Ma, implying that this granite suite was formed in the oreforming stage of Eocene. According to these data, the authors tend to believe that the Xiongcun superlarge deposit belongs probably to the altered cataclastite type CuAu deposit, and is very similar to Jiaodong “Jiaojiastyle” gold deposits.

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张万平,莫宣学,朱弟成,袁四化,王立全,2009,西藏冈底斯带南部雄村铜金矿成因探讨——来自锆石U-Pb年龄的证据[J].岩石矿物学杂志,28(3):235~242. ZHANG Wanping, MO Xuanxue, ZHU Dicheng, YUAN Sihua, WANG Liquan,2009,The genesis of the Xiongcun coppergold deposit in southern Gangdise,Tibet: evidence from zircon UPb SHRIMP ages[J]. Acta Petrologica et Mineralogica,28(3):235~242.

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