| 西成矿田层控铅锌矿床的成矿机制 |
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| 引用本文： | 李英.西成矿田层控铅锌矿床的成矿机制[J].地球化学,1983(3):241-249. |
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| 作者姓名： | 李英 |
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| 作者单位： | InstituteofGeochemistry,AcademiaSinica |
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| 摘 要： | The material source, physico-chemical conditions and reworking geological agents have been explored of stratabotmd Pb-Zn-barire deposits occurring in western Qinling based on the data on mineralogy, petrochemistry, dispersed dements, isotopic geochronology, stable isotopes (common lead, carbon, sulfur, oxygen end hydrogen), fluid inclusions, and high temperature-high pressure experiments. Also discussed are the geochemical characteristics of mineralization of carbonate-type Pb-Zn ore deposits. Evidence shows that the marine carbonate formation of the Middle-Upper Devonian series is the source bed of these ore deposits.Biochemical process, detrital transportation and subcontemperaneous dolomitizatien are responsible for the contemporaneous enrichment of ore-forming components. Ore depositionin response to tectonism end regional metamorphism took place during the Indosinian-Yenshanian orogenic movement. All these deposits can be divided into two genetic types: sedimentary-metamorphosed and sedimentary-reworked although they still possess their own metallegenetic characteristics.
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| 关 键 词： | 铅锌矿 成矿机制 碳酸岩 矿床地质 地球化学 |
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