文摘
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金宝山铂族元素矿床是典型的岩浆型矿床,但矿体中广泛发育热液脉状矿石,脉体有较高的铂族元素含量,特别是硫化物细脉为铂族元素的重要载体,反映铂族元素的热液活动。根据岩体主要蚀变类型,区分出岩浆晚期高温流体活动阶段、岩浆期后蛇纹石化阶段和低温碳酸盐化阶段。各阶段热液性质、流体来源及铂族元素热液活动性分析表明,蛇蚊石化阶段铂族元素热液活动最强烈,主要表现为就地改造;热液活动未造成矿体形态、产状的根本变化。 |
其他语种文摘
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Jinbaoshan PGE deposit is a typical magmatic ore deposit,but there are a lot of hydrothermal veins in ores. There are significant PGE contents in the veins, especially in the sulfide veinule. All this showed that PGE remobilized by hydrothermal fluids. According to characteristics of the alteration, three hydrothermal stages had been distinguished. By the analysis of property and the origin of hydrothermal fluids, PGE remobilization in each stage had been discussed. Of three stages, PGE remobilization is the most marked in serpentinization,but mainly modified in situ. The PGE remobilization did not change the shape or occurrence of the ore body. |
来源
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矿物岩石地球化学通报
,2003,22(1):32-37 【扩展库】
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关键词
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铂族元素矿床
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岩浆型矿床
;
热液活动
;
成矿作用
;
地球化学
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地址
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中国科学院地球化学研究所, 矿床地球化学开放实验室, 贵州, 贵阳, 550002
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语种
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中文 |
文献类型
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研究性论文 |
ISSN
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1007-2802 |
学科
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地质学 |
基金
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中国科学院知识创新工程项目
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文献收藏号
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CSCD:1280216
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