| 金在热液中的地球化学性质实验研究 |
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| 引用本文： | 周茂,蔡元吉.金在热液中的地球化学性质实验研究[J].资源调查与环境,1998(3). |
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| 作者姓名： | 周茂 蔡元吉 |
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| 作者单位： | 南京地质矿产研究所!南京，210016，南京地质矿产研究所!南京，210016 |
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| 摘 要： | 通过近百次实验研究表明，金在水热条件下的地球化学行为具有以下几个特点：金在氧化条件下溶解，还原条件下沉淀；金在高温下溶解，低温下沉淀；金在碱性或酸性溶液中溶解，在中性溶液中沉淀；金在低压下溶解，在高压下沉淀；随着fs八的增加，金的溶解度随之增加；金可以An（HS）4]、Au（HS）2]-、Au（Cl4）]、Au（Cl2）]-等络合物形式存在于热液中；在热液中金普遍以An3＋的络合物形式存在，Aul＋的络合物形式次之，随着温度的升高，热液中Au1＋的含量明显增加。
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| 关 键 词： | 金 热液 地球化学 实验研究 |
EXPERIMENTAL RESEARCH ON AU'S GEOCHEMICAL PROPERTIES IN HYDROTHERMAL SOLUTIONS |
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| Zhou Mao, Chi Yuanji.EXPERIMENTAL RESEARCH ON AU'S GEOCHEMICAL PROPERTIES IN HYDROTHERMAL SOLUTIONS[J].Resources Survey & Environment,1998(3). |
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| Authors: | Zhou Mao Chi Yuanji |
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| Abstract: | The results of nearly a hundred experiments attested that Au, under hydrothermal conditions, displays following geochemical characteristics:It dissolves in oxidation and deposits in reduction;It dissolves under high temperature and deposits under low temperature;It dissolves in alkali or acid solutions and deposits in neutral solutions;It dissolves under low pressure and deposits under high pressure;Its solubility increases as fs2 going up;It can exist in hydrothermal solutions, taking the form of some complex compounds as Au(HS)4] -. Au(HS)2 ] -. Au(Cl4) -. Au(Cl2)] etc;It appears in thermal solutions mostly in the form of Au3 complex compounds, lesser in Aul complex compounds, and Au1 content in thermal solution increases as the temperature going up. |
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| Keywords: | Au thermal solution geochemistry experimental research |
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