| 盆地流体中有机组分的成矿效应 |
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| 引用本文： | 刘建明,叶杰,刘家军,谭骏,朱和平.盆地流体中有机组分的成矿效应[J].矿物岩石地球化学通报,2000,19(3):141-148. |
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| 作者姓名： | 刘建明 叶杰 刘家军 谭骏 朱和平 |
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| 作者单位： | 1. 中国科学院,地质与地球物理研究所,北京,100101
2. 中国科学院,地球化学研究所,贵州,贵阳,550002 |
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| 基金项目： | 科技部攀登预选项目!( 95 预 3 9)，国家重点基础研究项目!(G19990 43 2 10 )的资助 |
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| 摘 要： | 盆地流体含有丰富的有机组分。有机质-金属耦合作用是盆地流体金属成矿机制的关键，具有极其重要的意义。有机质的成矿作用主要表现为：1)沉积有机质对盆地流体物理化学特征的制约；2)有机组分对金，属成矿元素在盆地流体中的迁移能力、迁移形式以及沉淀就位机制的制约；3)富有机质的地层作为地球化学还原障和H2S障对于流体中金属沉淀就位的制约；4)沉积有机质的演化对于盆地流体运移的制约(通过油气的阵发性析出和二次孔隙的产生)。
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| 关 键 词： | 盆地 成矿 有机组分 流体运移 沉积有机质 就位机制 迁移形式 沉淀 耦合作用 还原 |
On Ore-Forming Effect of Organic Compounds in Basin Fluids |
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| LIU Jian-ming,YE Jie,LIU Jia-jun,TAN Jun,ZHU He-ping.On Ore-Forming Effect of Organic Compounds in Basin Fluids[J].Bulletin of Mineralogy Petrology and Geochemistry,2000,19(3):141-148. |
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| Authors: | LIU Jian-ming YE Jie LIU Jia-jun TAN Jun ZHU He-ping |
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| Abstract: | In sedimentary basins there are two types of basin fluids, aqueous solution and hydrocarbon. Aqueous basin fluids distinguish themselves from other geofluids by high concentration of organic compounds mainly in form of various organic acids. These organic compounds contribute a lot to the reactivation, transportation and precipitation of ore building metals, in the way that they cooperate metal to form stable metal organic complex and enable metal to be transported stably in fluid on one hand, and on the other hand they constrain chemicophysical parameters of fluid and its environments and provide H 2S which is important for metal precipitation. Coupling interaction between metal and organic compound is a key factor to understand ore forming processes in connection with basin fluids in sedimentary basin. |
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| Keywords: | basin fluid organic acids metal organic complex ore forming by basin fluids |
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