| 南岭泥盆系中层控铅锌黄铁矿矿床特征及其成因系刻 |
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| 引用本文： | 刘文均.南岭泥盆系中层控铅锌黄铁矿矿床特征及其成因系刻[J].矿床地质,1989,8(1):39-50. |
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| 作者姓名： | 刘文均 |
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| 作者单位： | 成都地质学院 |
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| 摘 要： | 南岭泥盆系中的层控铅锌、黄铁矿矿床,在空间上受层位、岩相和构造位置的控制。不同矿床之间在矿体形态产状、矿石的物质组分、结构构造、微量元素、同位素组成和包裹体特征方面,具有系列演化特点。据此可以将这些矿床分为成岩、成岩-后生、热液叠加和混合热液等四种成因类型。它们是在控制因素相近,成矿物质来源、迁移和就位机制既有联系又逐渐演化的条件下形成的,属于同一矿床成因系列。
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| 关 键 词： | 铅锌黄铁矿 层控矿床 泥盆系 |
Characteristics and genetic series of stratabound lead-zinc and pyrite ore deposits in Devonian strata of Nanling region |
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| Abstract: | There occur lots of stratabound lead-zinc and pyrite ore deposits in Devonian strata of Nanling region. No matter whether intrusive bodies are existent or not within them, these deposits are controlled spatially by similar stratigraphic horizons, lithofacies, and tectonic positions and show both distinction a nd connection in such aspects as forms and modes of occurrence of orebodies, ore composition, textures and structltres, minor elements, S, Pb, O, C,H isotope composition and inclusion components which all reflect genetic characteristics of these deposits, suggesting an obvious sequential evolution relationship. These charactersitics fully demonstrate their differences in sources of metaltogenie materials and solutions, ore-forming styles and metallogenic epochs. In view of the fact that ores and wall rocks have the same genesis, the author, based on the relation between the evolutionary stages of tile basin and tile metallogenic processes as well as oil the above characteristics, has grouped these deposits into four genetic types, namely diagenetic, diagenetic-epigenetic superimposed and mixed hydrothermal ore deposits. They are transitional ore deposit types connected to and progressively evolved into each other between the two end members of sedimentary deposits and magmatm hydrothermal deposits, and were formed under the condition of identical controlling factors and similar ore-forming material sources, migration and emplacement mechanism, thus belonging to the same genetic series, i. e., genetic series of stratabound ore deposits. |
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