| 中国卡林型金矿床成矿地质特征探讨 |
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| 引用本文： | 李得刚,曾小华,关有国,张国伟,由建明.中国卡林型金矿床成矿地质特征探讨[J].有色金属(矿山部分),2012,64(1):24-30. |
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| 作者姓名： | 李得刚 曾小华 关有国 张国伟 由建明 |
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| 作者单位： | 1. 青海省柴达木综合地质矿产勘查院,青海格尔木816000;中国地质大学(北京)研究生院,北京100083
2. 青海省柴达木综合地质矿产勘查院,青海格尔木,816000 |
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| 基金项目： | 中央地勘基金，青藏专项项目 |
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| 摘 要： | 卡林型金矿床为微细浸染型中低温热液金矿床,多产于渗透性良好的、未经区域性变质的细碎屑岩、碳酸盐岩和硅质岩中。矿石多为浸染状,金的粒度多为显微—次显微级。中国的卡林型金矿的成矿时代主要分布在80～170Ma,矿石多赋存于背斜构造倾伏端、背斜轴转折端及背斜翼部,受构造控制明显。成矿物质和成矿热液流体具有多源性,成矿热液为中—弱酸性的低盐度流体,其中可能含有一定数量的有机质,有机质在成矿过程中也起着一定作用。
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| 关 键 词： | 卡林型金矿 中低温热液矿床 地质特征 成因类型 |
Metallogenetic geological characteristics of Carlin-type gold deposits in China |
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| Authors: | LI Degang ZENG Xiaohua GUAN Youguo ZHANG Guowei QU Jianming |
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| Affiliation: | 1(1.Qinghai Qaidam Integrated Institute of Geology and Mineral Resource Exploration,Golmud Qinghai 816000,China;2.Graduate School, China University of Geoscience,Beijing 100083,China) |
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| Abstract: | The Carlin gold deposits are micro-disseminated medium-low temperature hydrothermal gold deposits,which are mostly occur in fine grained clastic rocks,carbonate rocks and siliceous rocks with good permeability and non-regional metamorphism.The ores mostly have disseminated structures,and the gold particle sizes are mostly in microscopic-submicroscopic grade.China Carlin-type gold deposit metallogenic epoch were mainly in 80～170 Ma,and most ores occur in the anticlinal axis transition end and the anticlinal limb,which are obviously controlled by geological structures.The mineralization material and mineralization hydrothermal fluid have polyphyletism,and the ore-forming fluid is weakly acidic low-salinity fluid,possibly including a certain amount of organic matter.The organic matter is also important for mineralization. |
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| Keywords: | Carlin-type gold deposit medium-low temperature hydrothermal gold deposit geological characteristics genetic type |
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