| Transport and Concentration of Gold in Metamorphic—hosted Reworked Gold Deposits,China |
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| 摘 要： |
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| 关 键 词： | 变质岩 金矿床 富集作用 地球化学 地质结构 |
Transport and concentration of gold in metamorphic-hosted reworked gold deposits,China |
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| Shengyuan Wang,Xiuzhang Wang,Jingping Cheng,Nan Wang. Transport and concentration of gold in metamorphic-hosted reworked gold deposits,China[J]. Chinese Journal of Geochemistry, 1993, 12(1): 60-70. DOI: 10.1007/BF02869046 |
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| Authors: | Shengyuan Wang Xiuzhang Wang Jingping Cheng Nan Wang |
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| Affiliation: | (1) Institute of Geochemistry, Academia Sinica, 550002 Guiyang |
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| Abstract: | Calculations based on the available thermodynamic data of AuCl 2 − and Au (HS) 2 − indicate that AuCl 2 − is responsible for the transport and enrichment of gold during the stage of pre-concentration in the source bed while Au (HS) 2 − is the main gold species involved in the formation of gold deposits in response to hydrothermal reworking. Acid chloride solutions witha Cl − > 10° and sulfur-rich solutions with aΣs in excess of 10−2 are held as important criteria for gold enrichment in the source bed and for the formation of gold deposits by subsequent hydrothermal event, respectively. |
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| Keywords: | metamorphic rock reworked gold deposit preliminary enrichment hydrothermal reworking transport and concentration |
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