Abstract
The Baoban gold field, located in the area of Hainan Island. South China, bears three gold deposits: Tuwaishan, Baoban, and Erjia, which belong to the wall-rock alteration type. In terms of the petrography data, four alteration zones can be recognized from the ore-vein outwards: (1) the silicification zone; (2) the serialization zone; (3) the chloritization zone; and (4) the calcitization zone. The geochemical kinetic simulation was carried out on serialization and chloritization. Results of the study showed that the formation of the alteration zones is connected with the properties of hydrothermal fluids: the initial concentration of Al (O H)3, the diflusion coefficient and the velocity of fluid flow. The alteration zones in this field are the result of multiple interaction between hydrothermal fluids and wall rocks.
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Zhifeng, X., Liqing, Y. & Ziyuan, Q. Geochemical kinetic simulation on wall rock alteration zoning in the Baoban gold field, South China. Chin. J. of Geochem. 13, 184–191 (1994). https://doi.org/10.1007/BF02838518
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DOI: https://doi.org/10.1007/BF02838518