| 中国微细浸染型金矿床围岩蚀变地质特征 |
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| 引用本文： | 吴烈善,彭省临.中国微细浸染型金矿床围岩蚀变地质特征[J].地质找矿论丛,2005,20(3):151-155,160. |
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| 作者姓名： | 吴烈善 彭省临 |
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| 作者单位： | 中南大学,地学与环境工程学院,长沙,410083;广西大学,化学化工学院,南宁,530004;中南大学,地学与环境工程学院,长沙,410083 |
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| 摘 要： | 微细浸染型金矿的围岩蚀变一般较弱,主要蚀变类型以硅化、碳酸盐化、粘土化、绢云母化为主;围岩蚀变与容矿岩石类型及其岩性组合密切相关,化学组分的变化因围岩的性质而异;金矿化强度与围岩蚀变强度和蚀变组合复杂程度成正比,金矿体出现在蚀变中心部位或蚀变分带的内带.
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| 关 键 词： | 围岩蚀变 微细浸染型 金矿床 |
| 文章编号： | 1001-1412（2005）03-0151-05 |
| 收稿时间： | 2004-09-09 |
| 修稿时间： | 2004-09-092004-11-07 |
GEOLOGICAL CHARACTERISTICS OF WALL-ROCK ALTERATION OF MICRO-DISSEMINATED GOLD DEPOSITS IN CHINA |
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| WU Lie-shan and PENG Sheng-lin.GEOLOGICAL CHARACTERISTICS OF WALL-ROCK ALTERATION OF MICRO-DISSEMINATED GOLD DEPOSITS IN CHINA[J].Contributions to Geology and Mineral Resources Research,2005,20(3):151-155,160. |
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| Authors: | WU Lie-shan and PENG Sheng-lin |
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| Institution: | 1. School of geoscience and environmental engineering of central south university, Changsha 410083, China; 2. School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China |
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| Abstract: | Micro-disseminated Au deposits are generally associated with weak wall rock alterations. Silicification, carbonation, argilation and sericitization are the main alteration types. The alteration type is colosely related to the type and lithologic assemblage of the host rocks. Chemical composition of the alterations are varied with the property of the wallrock. Au mineralization intensity is proportional to the wallrock alteration intensity and the complexity of the alteration asseonblage. Au ore body occurs at center and inner zone of the alterations. |
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| Keywords: | wall-rock alteration micro-disseminated gold deposits~ China |
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