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Chinese Journal of Geochemistry

, Volume 10, Issue 1, pp 21–35 | Cite as

Classification and type association of tin deposits in Southeast Yunnan Tin Belt

  • Yang Shiyu
Article

Abstract

Pneumato-hypothermal to meso-epithermal tin-polymetallic (W, Be, Bi, Mo, Cu, Pb, Zn and Ag) deposits, dominated by cassiterite-sulfide type and cassiterite-quartz type, are extensively developed around granite intrusives in the Southeast Yunnan Tin Belt genetically related to Yenshanian tecto-magmatism. The deposits are grouped into two classes, four associations and fourteen types according to the classification scheme proposed by the author to reflect their geological and genetic characteristics as well as economic implications. The deposits are arranged in an apparent zonal pattern from the granite body outwards in terms of “association” (cassiterite-feldspar → cassiterite-quartz → cassiterite sulfide), typical ore-forming metals (Sn-W-Be-Mo-Nb-Ta-Tr → SnW-Cu-In → Sn-Pb-Zn-As-Cd), and formation conditions (pneumato-hypothermal → hypothermalmesothermal → mesothermal-epithermal), although such distribution pattern may be more or less complicated by local specialities of granite petrochemistry, host rock lithology and structure.

Keywords

Tourmaline Granite Porphyry Granite Body Primary Deposit Skarn Deposit 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Liu Jingxin et al. (1957) Characteristics and metallogenic regularities of tin deposits, Gejiu, Yunnan.Acta Gelogica Snica 37 (4), 373–399 (in Chinese).Google Scholar
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Copyright information

© Institute of Geochemistry, Chinese Academy of Sciences 1991

Authors and Affiliations

  • Yang Shiyu
    • 1
  1. 1.Department of GeologyKunming Institute of TechnologyYunnan

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