| 青海东莫扎抓铅锌矿床硫化物特征及成因意义 |
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| 引用本文： | 丛源,陈建平,董庆吉,郝金华.青海东莫扎抓铅锌矿床硫化物特征及成因意义[J].现代地质,2010,24(1). |
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| 作者姓名： | 丛源 陈建平 董庆吉 郝金华 |
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| 作者单位： | 1. 中国地质大学,国土资源与高新技术研究中心,北京,100083;中国地质大学,北京市国土资源信息开发研究重点实验室,北京,100083;中国地质大学,地质过程与矿产资源国家重点实验室,北京,100083
2. 中国地质大学,国土资源与高新技术研究中心,北京,100083;中国地质大学,北京市国土资源信息开发研究重点实验室,北京,100083;中国地质科学院,矿产资源研究所,北京,100037 |
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| 基金项目： | 中国地质调查局"西南三江北段铜多金属成矿条件研究"项目 |
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| 摘 要： | 青海东莫扎抓矿床是新探明的一个大型铅锌矿床。通过大量矿石光薄片观察、等离子质谱、电子探针分析,对其矿石矿物进行系统研究。结果表明:矿石矿物发育一套中温热液矿物组合;围岩蚀变具有中温蚀变特点;硫化物的硫同位素具有MVT型块状硫化物的特征。综合研究认为,东莫扎抓铅锌矿至少可分为3期成矿:在海相白云岩沉积阶段存在闪锌矿、黄铁矿等金属硫化物的热液喷流沉积成矿;在弧后前陆盆地构造环境中发育有MVT型铅锌矿床成矿;在后期构造运动热液作用下,之前形成的铅锌矿可能会发生热液叠加改造。因此,东莫扎抓具有多期次多阶段叠加成矿的特点。
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| 关 键 词： | 硫化物 铅锌矿 东莫扎抓 青海 |
Characteristics of Sulfide Minerals in Dongmozhazhua Lead-zinc Deposit,Qinghai Province,and Their Genetic Significance |
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| CONG Yuan,CHEN Jian-ping,DONG Qing-ji,HAO Jin-hua.Characteristics of Sulfide Minerals in Dongmozhazhua Lead-zinc Deposit,Qinghai Province,and Their Genetic Significance[J].Geoscience——Journal of Graduate School,China University of Geosciences,2010,24(1). |
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| Authors: | CONG Yuan CHEN Jian-ping DONG Qing-ji HAO Jin-hua |
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| Institution: | CONG Yuan1,2,3,CHEN Jian-ping1,DONG Qing-ji1,4,HAO Jin-hua1,3(1.Institute of L, Resources , High Techniques,China University of Geosciences,Beijing 100083,China,2.Beijing Key Laboratory of Research , Exploration Information of L, Resources,3.State Key Laboratory of Geological Processes , Mineral Resources,4.Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing 1... |
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| Abstract: | The Dongmozhazhua ore deposit is a new large-size lead-zinc deposit in the south of Qinghai Province.Based on a considerable number of polished ore sections as well as massive spectrum and electron microprobe analyses,the systematic study on ore minerals is finished.The results show that the ore mineral is intermediate-temperature hydrothermal mineral association.Wall rock alteration is intermediate-temperature alteration.Sulfide isotope has the characteristic of the sulfides isotope in massive sulfide depo... |
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| Keywords: | sulfide mineral lead-zinc deposit Dongmozhazhua Qinghai |
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