Kangjiawan Pb-Zn-Ag-Au deposit, Shuikoushan ore field, Changning Co., Hengyang Prefecture, Hunan Province, China

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The Kangjiawan deposit is a representative hydrothermal Pb-Zn-Ag-Au deposit in this region. The orebodies consist mainly of pyritic Pb-Zn ores. Silver minerals are associated with Pb-Zn mineralization. Ag-bearing Pb-Zn ores in the deposit are characterized by Ag > Cu > Sb content. Silver occurs mainly as silver minerals, such as minor argentian tetrahedrite, freibergite and abundant polybasite-arsenpolybasite, pearceite and pyrargyrite-proustite, and all are hosted in galena. The assemblages of silver minerals found in the major orebodies change from the southern to the northern part, from argentian tetrahedrite + freibergite + pearceite + arsenpolybasite + pyrargyrite-proustite in the south to polybasite-arsenpolybasite + pyrargyrite, and to pyrargyrite in the north.

References

- Ronglong Jin (1986): Lead and sulfur isotope data and fluid inclusion characteristics of the major Pb-Zn deposits in southern Hunan and their significance for prospecting. Geology and Prospecting 22(12), 29-35.
- Jin Liu and Huamiao Hu (1998): The characteristics of natural thermoluminescence of the silicified breccia in Kangjiawan and its significance to mineral prospecting. Geology and Prospecting 34(4), 34-36.
- Nanshi Zeng, Eiji Izawa, Yoshinobu Motomura, and Lairen Lai (2000): Silver Minerals and paragenesis in the Kangjiawan Pb-Zn-Ag-Au deposit of the Shuikoushan mineral district, Hunan Province, China. The Canadian Mineralogist 38, 11-22.
- Deru Xu, Jing Liu, and Guanghao Chen (2002): Petrochemical characters of silicified breccia in the Kangjiawan polymetallic deposit, Changning, Hunan. Chinese Journal of Geology 37(3), 356-364.
- Yanhua Zhang, Ge Lin, Roberts, P., and Ord, A. (2007): Numerical modelling of deformation and fluid flow in the Shuikoushan district, Hunan Province, South China. Ore Geology Reviews 31, 261-278.
- Yanjing Chen, Huayong Chen, Khin Zaw, Pirajno, F., and Zengjie Zhang (2007): Geodynamic settings and tectonic model of skarn gold deposits in China: An overview. Ore Geology Reviews 31, 139-169.

External Links

http://pubs.nrc-cnrc.gc.ca/mineral/mineral38/01138-1.pdf

Mineral List

Acanthite Arsenopyrite Bornite Bournonite Calcite Chalcocite Chalcopyrite 'Chlorite Group'

Epidote Fluorite Freibergite Galena Gold var: Electrum Hematite Hessite

'K Feldspar var: Adularia' Muscovite var: Sericite Pearceite 'Pearceite-T2ac' Polybasite Proustite Pyrargyrite Pyrite

Pyrrhotite Quartz var: Chalcedony Silver Sphalerite Stromeyerite ? Tetrahedrite var: Argentian Tetrahedrite

32 entries listed. 25 valid minerals.