| Gold Occurrence and Ore Genesis,Yata Micro—Disseminated Gold Deposit,Guizhou,Southwest China |
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| 引用本文： | 朱笑青,王中刚. Gold Occurrence and Ore Genesis,Yata Micro—Disseminated Gold Deposit,Guizhou,Southwest China[J]. 中国地球化学学报, 2002, 21(4): 370-373. DOI: 10.1007/BF02831538 |
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| 作者姓名： | 朱笑青 王中刚 |
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| 作者单位： | InstituteofGeochemistry,ChineseAcademyofSciences,Guiyang550002,China |
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| 基金项目： | 国家自然科学基金，中国科学院资助项目 |
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| 摘 要： | The mode of occurrence of gold in the Yata micro-disseminated gold deposit is ap-proached through chemical phase studies coupled with ore-dressing monitoring and micro-beam analysis.The results showed that gold occurred for the most part as ultra-microscopic particles adsorbed on the surfaces or fracture planes of pyrite and other sulphides.The proportions of gold of different occurrences were estimated solutions containing nanometer-sized gold particles were prepared following the hydrolysis-reduction procedure and the adsorption of nanometer-sized gold on ordinary sulphides and rocks was experimentally determined.It is evident that sulphides are good adsorbents of gold and this is consistent with geological observations.
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| 关 键 词： | 金矿床 化学相分析 纳米 地质构造 矿石成因 贵州 成矿作用 |
| 收稿时间： | 2006-01-25 |
Gold occurrence and ore genesis,Yata micro-disseminated gold deposit,Guizhou, Southwest China |
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| Zhu Xiaoqing,Wang Zhonggang. Gold occurrence and ore genesis,Yata micro-disseminated gold deposit,Guizhou, Southwest China[J]. Chinese Journal of Geochemistry, 2002, 21(4): 370-373. DOI: 10.1007/BF02831538 |
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| Authors: | Zhu Xiaoqing Wang Zhonggang |
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| Affiliation: | (1) Chinese Academy of Sciences, Institute of Geochemistry, 550002 Guiyang, China |
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| Abstract: | The mode of occurrence of gold in the Yata micro-disseminated gold deposit is approached through chemical phase studies coupled with ore-dressing monitoring and micro-beam analysis. The results showed that gold occurred for the most part as ultra-microscopic particles adsorbed on the surfaces or fracture planes of pyrite and other sulphides. The proportions of gold of different occurrences were estimated solutions containing nanometer-sized gold particles were prepared following the hydrolysis-reduction procedure and the adsorption of nanometer-sized gold on ordinary sulphides and rocks was experimentally determined. It is evident that sulphides are good adsorbents of gold and this is consistent with geological observations. This work was supported by the National Natural Science Foundation of China (Grant No. 49473197 ) and the project (KZ951-B1-411) of the Chinese Academy of Sciences. |
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| Keywords: | gold micro-disseminated gold deposit chemical phase analysis nanometersized ore genesis |
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