| 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,(3):151-155,160 |
| 中国微细浸染型金矿床围岩蚀变地质特征 |
| GEOLOGICAL CHARACTERISTICS OF WALL-ROCK ALTERATION OF MICRO-DISSEMINATED GOLD DEPOSITS IN CHINA |
| 投稿时间：2004-09-09 修订日期：2004-11-07 |
| DOI：10.6053/j.issn.1001-1412.2005.3. 001 |
| 中文关键词: 围岩蚀变 微细浸染型 金矿床 |
| 英文关键词:wall-rock alteration micro-disseminated gold deposits China |
| 基金项目:国家“十五”科技攻关项目(2001BA609A-06)资助 |
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| 中文摘要: |
| 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。 |
| 英文摘要: |
| 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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