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Thermal water deposition and Ph-Zn barite deposits in the Devonian system, central Guangxi

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Abstract

Stratiform barite deposits (SB) and vein Pb-Zn barite deposits (VB) are known in a rift basin in central Guangxi. The former is hosted in the Upper Devonian chert beds and the latter occurs in the Middle and Lower Devonian neritic sediments. The two types of mineralization are believed to have a common origin as evidenced by the following observations: (1) Spatially, they are closely associated with each other. (2) They possess a basic similarity, but also show systematic variations from VB to SB in terms of ore composition, structural and textural features, temperature of mineralizing solutions, country rocks and alteration. (3) Their δ34S values are more similar to the average value of marine sulfate in Late Devonian than to that in Early Devonian. A model for thermal water deposition has been proposed to illustrate the genesis of these deposits.

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References

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Authors and Affiliations

  1. Institute of Geochemistry, Academia Sinica, China

    Chen Xianpei & Gao Jiyuan

Authors
  1. Chen Xianpei
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  2. Gao Jiyuan
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Xianpei, C., Jiyuan, G. Thermal water deposition and Ph-Zn barite deposits in the Devonian system, central Guangxi. Chin. J. of Geochem. 7, 321–328 (1988). https://doi.org/10.1007/BF02842336

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  • DOI: https://doi.org/10.1007/BF02842336

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