Large-scale tin-polymetallic ore deposit with Sn, Cu, Pb, Zn, Ag and minor elements such as Co and In, hosted by rocks of the Upper Permian Linxi group (terrigenous lacustrine sedimentary rocks, consisting of sandstone, slate, pelitic-silty slate, medium-to fine-grained graywacke, siderite nodule- and P-siderite nodule-bearing siltstone, and marl), in the southwest part of the Huanggang-Wulanhaote metallogenic belt. Orebodies are mainly developed in the upper part of the marl layer and below the P-bearing horizon. Multiperiodic activities of the host structures system led to a multistage mineralization. Four stages are recognized in the main mineralization: 1) cassiterite-arsenopyrite-quartz stage, 2) cassiterite-sulfide (or Cu-polymetallic mineralization) stage, 3) massive pyrite stage, and 4) galena-sphalerite stage. Wallrock alterations are silicification, sericitization, sideritization, chloritization, tourmalinization, dolomitization, calcitization and fluoritization.
References:
- Wang, Y.W., Wang, J.B., Uemoto, T., and Wang, L.J. (2001): Resource Geology 51(4), 307-320.
- Liu, W., Li, X.J., and Tan, J. (2001): Resource Geology 51(4), 321-331.
- Zhou Meifu, Sun Min, and Chu Xuelei (2002): PGE patterns of ores of Dajing Cu-polymetallic deposit in Linxi County, Inner Mongolia: Indicator to source of metallogenic elements. Chinese Science Bulletin 2002(14).
- Liu Wei, Li Xinjun, and Tan Jun (2003): Fluid mixing as the mechanism of formation of the Dajing Cu-Sn-Ag-Pb-Zn ore deposit, Inner Mongolia. Science in China, Series D (Earth Sciences), 46(7), 652-663.
- Wang Lijuan, Wang Jingbin, Wang Yuwang, and Zhu Heping (2004): Ore-forming fluid and mineralization of Caijiaying and Dajing polymetallic ore deposits. Science in China, Series D (Earth Sciences), 47(2), 97-107.
- Wang, Y.W., Wang, J.B., Wang, L.J., and Chen, Y.Z. (2006): Tin mineralization in the Dajing tin-polymetallic deposit, Inner Mongolia, China. Journal of Asian Earth Sciences 28, 320-331.
- Wang Lijuan, Wang Yuwang, Wang Jingbin, and Günther, D. (2006): Fluid mineralization of the Dajing Sn-polymetal deposit: Evidence from LA-ICP-MS analysis of individual fluid inclusions. Chinese Science Bulletin 51(22), 2781-2788.
- Shuyin Niu, Aiqun Sun, Baode Wang, Jianming Liu, Lijun Guo, Huabin Hu, and Chuanshi Xu (2007): On the metallogenesis of Dajing Cu-Sn-polymetallic ore deposit, Inner Mongolia, China. Chinese Journal of Geochemistry 26(4), 394-401.
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Map Reference: 43°41'N , 118°15'E
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32 entries listed. 24 valid minerals.
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