W-Sn-Bi-Mo-F skarn deposit, hosted by Devonian limestone in the thermal aureole of the Qianlishan granite complex. The latter comprises five separate intrusions, including fine-grained porphyritic biotite granite (granite 1), medium-grained biotite-K feldspar granite (granite 2), fine-grained biotite and K feldspar granite (granite 3), granitic porphyry (granite 4), and diabase. Its upper part is characterized by extensive greisen alteration. Skarn zones distributed around the intrusions are mainly calcic. Mineralization consists of Sn-Be veinlet ore in marble and porphyry, massive W-Bi-Mo-Sn skarn ore, stockwork W-Sn-Bi-Mo-F ore, and W-Sn-Mo-Bi greisen ore, mainly associated with granite 2. Emplacement of granite 2 was accompanied by late, intense fracturing characterized by stockwork mineralization, which was superimposed on massive skarn and greisen zones. The stockwork ore consists mainly of greisen and skarn veins and veinlets with scheelite, wolframite, molybdenite, cassiterite, bismuthinite, and fluorite.
Ore reserves amount to 750,000 tonnes of WO3 ore, 490,000 tonnes of Sn ore, 300,000 tonnes of Bi ore, 130,000 tonnes of Mo ore and 200,000 tonnes of Be ore, with combined grades ranging from 1% to 5%. In addition, there are fluorite reserves of 7,000 tonnes, making it one of the largest associated fluorite deposits in China.
Located about 15 km SE of Chenzhou City.
References:
- Zhongming Zhang and Shihui Luo (1984): The mineralogical characteristics of bavenite and the mineralogy of the tin and beryllium bearing marble-type ore belt in Shizhuyuan, Chen County, Hunan. Hunan Geology 1984(3) (in Chinese with English abstract).
- Chen, J., Halls, C., and Stanley, C.J. (1992): Rare earth element contents and patterns in major skarn minerals from Shizhuyuan W, Sn, Bi and Mo deposit, South China. Geochemical Journal 26, 147-158.
- Jingwu Yin, Sang Jung Kim, Hyun Koo Lee, and Chan Hee Lee (1992): W-Sn-Bi-Mo Mineralization of Shizhuyuan deposit, Hunan Province, China. Economic and Environmental Geology 35(3), 179-189.
- Liu Yimao, Lu Huanzhang, Wang Changlie, Xu Youzhi, Kang Weiqing, and Zeng Ti (1998): On the ore-forming conditions and ore-forming model of the superlarge multimetal deposit in Shizhuyuan. Science in China, Series D (Earth Sciences), 41(5), 502-512.
- Zhao Zhenhua, Bao Zhiwei, Zhang Boyou, and Xiong Xiaolin (2001): Crust-mantle interaction and its contribution to the Shizhuyuan superlarge tungsten polymetallic mineralization. Science in China, Series D (Earth Sciences), 44(3), 266-276.
- Jingwu Yin, Sang Jung Kim, Hyun Koo Lee, and Tetsumaru Itaya (2002): K-Ar ages of plutonism and mineralization at the Shizhuyuan W-Sn-Bi-Mo deposit, Hunan Province, China. Journal of Asian Earth Sciences 20, 151-155.
- Huanzhang Lu, Yimao Liu, Changlie Wang, Youzhi Xu, and Huaqin Li (2003): Mineralization and Fluid Inclusion Study of the Shizhuyuan W-Sn-Bi-Mo-F Skarn Deposit, Hunan Province, China. Economic Geology 98(5), 955-974.
- Shunso Ishihara, Ping'An Wang, Yoshimichi Kajiwara, and Yasushi Watanabe (2003): Origin of sulfur in some magmatic-hydrothermal ore deposits of South China. Bulletin of the Geological Survey of Japan 54(3/4), 161-169.
- Xianhua Li, Dunyi Liu, Min Sun, Wuxian Li, Xirong Liang, and Ying Liu (2004): Precise Sm–Nd and U–Pb isotopic dating of the supergiant Shizhuyuan polymetallic deposit and its host granite, SE China. Geological Magazine 141(2), 225-231.
- Khin Zaw, Peters, S.G., Cromie, P., Burrett, C., and Zengqian Hou (2007): Nature, diversity of deposit types and metallogenic relations of South China. Ore Geology Reviews 31, 3-47.
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Map Reference: 25°43'N , 113°10'E
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