| 云南金平长安金矿床稀土元素特征及其地质意义 |
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| 引用本文： | 郭春影,高帮飞,刘学飞,张瑞忠.云南金平长安金矿床稀土元素特征及其地质意义[J].黄金,2009,30(1):7-11. |
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| 作者姓名： | 郭春影 高帮飞 刘学飞 张瑞忠 |
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| 作者单位： | 中国地质大学(北京)地质过程与矿产资源国家重点实验室;中国地质大学(北京)岩石圈构造、深部过程及探测技术教育部重点实验室 |
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| 基金项目： | 国家自然科学基金，教育部创新团队、111计划，教育部跨世纪人才培养计划，云南地矿资源股份有限公司地质科研项目，中国地质大学地质过程与矿产资源国家重点实验室开放基金 |
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| 摘 要： | 通过长安金矿床不同类型矿石、岩浆岩和白云岩地层稀土元素地球化学对比研究，结合显微镜蚀变矿化特征观察，对该矿床与不同类型地质体成因关系进行讨论。石英正长斑岩、正长斑岩、正长岩、煌斑岩、辉绿岩稀土配分曲线均为右倾型，配分模式相似，指示矿区内三类长英质岩石和中基性煌斑岩、辉绿岩可能为同源岩浆演化产物。毒砂矿化原生矿石与弱黄铁矿化原生矿石相比，Eu负异常程度低，而矿区内煌斑岩与辉绿岩具有弱负Eu异常，指示毒砂矿化作用可能与煌斑岩与辉绿岩岩浆活动有关。黄铁矿化白云岩比无蚀变白云岩稀土元素总量（∑REE）要高，但两者稀土配分模式基本一致，指示黄铁矿化成矿热液稀土元素特征与白云岩稀土元素特征相似，推断黄铁矿化热液可能来源于白云岩变质热液。
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| 关 键 词： | 长安金矿床 稀土元素 叠加成矿 地质意义 |
Characteristics and their geological significance of rare earth elements in Chang'an gold deposit,Yunnan province |
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| Guo Chunying,Gao Bangfei,Liu Xuefei,Zhang Ruizhong.Characteristics and their geological significance of rare earth elements in Chang''an gold deposit,Yunnan province[J].Gold,2009,30(1):7-11. |
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| Authors: | Guo Chunying Gao Bangfei Liu Xuefei Zhang Ruizhong |
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| Affiliation: | Guo Chunying, Gao Bangfei, Liu Xuefei ,Zhang Ruizhong (State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences( Beijing ) ; Key Laboratory of Lithosphere Tectonics and Litho probing Technology of Ministry of Education, China University of Geosciences (Beijing) ) |
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| Abstract: | Combined micro-observation and rare earth elements(REE) studies of different types of gold ores,diverse magmatic rocks and dolomite rocks of Chang'an gold deposit in south Yunnan province,we discuss the correlations of gold mineralization with felsic rocks,diabase,lamprophyre and dolostone.Quartz orthophyre,orthophyre,syenite diabase and lamprophyre show similar REE characteristics which indicate their possible same origin and source.Arsenopyrite mineralized ores show less Eu anomalies than the weak pyrite ... |
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| Keywords: | Chang'an gold deposit rare earth element overprinting mineralization geological significance |
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