| GEOCHEMICAL KINETIC SIMULATION ON WALL—ROCK ALTERATION ZONING IN THE BAOBAN GOLD FIELD，SOUTH CHINA |
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| 引用本文： | 肖志峰,杨丽清,等.GEOCHEMICAL KINETIC SIMULATION ON WALL—ROCK ALTERATION ZONING IN THE BAOBAN GOLD FIELD，SOUTH CHINA[J].中国地球化学学报,1994,13(2):184-191. |
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| 作者姓名： | 肖志峰 杨丽清 |
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| 作者单位： | [1]InstituteofGeochemistry,ChimeseAcademyofSciences,Guiyang550002 [2]InstituteofGeochemistry,ChimeseAcademy |
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| 摘 要： | The Baoban gold field,located in the area of Hainan Island ,South China ,bears three gold de-posits :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 sericitization zone;(3)the chloritization zone;and (4)the calcitization zone.The geochemical kinetic simulation was carried out on sericitization 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 diffusion 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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| 关 键 词： | 金矿床 地球化学动力学 华南地区 地质构造 |
Geochemical kinetic simulation on wall rock alteration zoning in the Baoban gold field,South China |
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| Xiao Zhifeng,Yang Liqing,Quyang Ziyuan.Geochemical kinetic simulation on wall rock alteration zoning in the Baoban gold field,South China[J].Chinese Journal of Geochemistry,1994,13(2):184-191. |
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| Authors: | Xiao Zhifeng Yang Liqing Quyang Ziyuan |
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| Institution: | (1) Chinese Academy of Sciences, Institute of Geochemistry, 550002 Guiyang |
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| 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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| Keywords: | watt-rock alteration gold deposit geochemical kinetics |
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