| 广东河台金矿金的迁移形式及沉淀机制的研究 |
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| 引用本文： | 何文武.广东河台金矿金的迁移形式及沉淀机制的研究[J].地质找矿论丛,1991,6(3):40-45. |
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| 作者姓名： | 何文武 |
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| 作者单位： | 中国地质大学 武汉 |
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| 摘 要： |
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| 关 键 词： | 金矿 金 迁移 沉淀 络合物 成矿 |
THE TRANSPORTING FORMS AND DEPOSITIONAL MECHANISM OF GOLD OF HETAI GOLD DEPOSIT, GUANGDONG |
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| HE WENWU.THE TRANSPORTING FORMS AND DEPOSITIONAL MECHANISM OF GOLD OF HETAI GOLD DEPOSIT, GUANGDONG[J].Contributions to Geology and Mineral Resources Research,1991,6(3):40-45. |
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| Authors: | HE WENWU |
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| Institution: | China University of Geosciences, Wuhan |
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| Abstract: | Thermodynamic calculations show that gold was transported mainly as Au(HS)2- complex. The activity of Au(HS)2- is 7.7×10-8(m) for the gold-quartz stage and 1.46×10-6(m) for the gold quartz-sulfide stage. Gold-complex decomposed and gold deposited in. response to the decrease of fo2and pH that was caused by siliconizing, sulfidization, sideritization and the conversion of pyrrhotite into pyrite. Furthermore, it is one of the important reasons for the deposition of gold that gold complexes react with Fe in wallrock. |
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