| 湘西低温An、Sb、Hg矿床成矿作用地球化学研究 |
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| 引用本文： | 何江,马东升,刘英俊.湘西低温An、Sb、Hg矿床成矿作用地球化学研究[J].南京大学学报(自然科学版),1995(4). |
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| 作者姓名： | 何江 马东升 刘英俊 |
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| 作者单位： | 南京大学地球科学系，南京内生金属矿床成矿机制研究国家重点实验室 |
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| 基金项目： | 国家自然科学基金,中科院矿床地化开放室基金,高等院校博士点基金 |
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| 摘 要： | 在对湘西低温矿化区中含矿建造的地球化学研究及典型矿床成矿流体性质的比较研究后指出，由元古界板溪群内发育的Ａｎ、Ｓｂ矿化至古生界寒武系内的Ｈｇ矿化，其矿化流体具有硫浓度不断降低，氯浓度显著升高，大气降水的比例不断增加的明显规律。含矿建造中成矿元素的丰度为控制矿化类型的非主要因素，成矿流体中矿化剂的种类和浓度以及成矿温度则是制约该区矿化类型的主要地球化学机制。
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| 关 键 词： | 成矿流体，含矿建造，低温矿化，湘西 |
GEOCHEMICAL STUDY OF MINERALIZATION ON EPITHERMAL An, Sb, Hg ORE DEPOSITS IN THE WEST OF HUNAN PROVINCE |
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| He jiang,Ma Dong Sheng,Liu Ying jun.GEOCHEMICAL STUDY OF MINERALIZATION ON EPITHERMAL An, Sb, Hg ORE DEPOSITS IN THE WEST OF HUNAN PROVINCE[J].Journal of Nanjing University: Nat Sci Ed,1995(4). |
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| Authors: | He jiang Ma Dong Sheng Liu Ying jun |
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| Abstract: | Based on the geochemital studies of the ore-bearing formation and the mineralization fluid in the epithermal metasegenetic area, the west of Hunan Province, the paper points out the ore-forming fluid evolutionary regularity which endowed with a continuous drandown in sulfide a markes rise in chloride and a sharp increase in the proportion of meteoric water from An-Sb metallogenization of Proterozoic group to the Hg mineralization of Cambrian group. The type and concentration of the mineralizer as well as ore-forming temperature are the main geochemital mechanism but the elemene abundance of the ore-bearing formation is not the important in controlling the type-mineralization. |
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| Keywords: | ore-forming fluid ore-bearing formation epithermal mineralization western Hunan |
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