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Chinese Journal of Geochemistry

, Volume 15, Issue 2, pp 189–192 | Cite as

Physicochemical conditions of differential mineralization of Au and As in gold deposits, southwest Guizhou Province, China

  • He Mingyou
Article

Abstract

The conditions under which gold and arsenic are enriched separately during mineralization in gold deposits in southwestern Guizhou Province were described and the thermodynamic calculations gave: 200–150°C at 400 × 10−6 -300 × 106 Pa (corresponding to a depth between 1.6 km and 1.2 km); lgf o2,−40 to -35 Pa; lgf s2, -20 to−16 Pa; pH 5.0 -4.2 and Eh -0.53 V.

Key words

Carlin-type gold deposit gold arsenic differential mineralization physicochemical condition 

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References

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Copyright information

© Institute of Geochemistry, Chinese Academy of Sciences 1996

Authors and Affiliations

  • He Mingyou
    • 1
  1. 1.Institute of GeochemistryChinese Academy of SciencesGuiyang

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