地球化学岩相学的研究内容、方法与应用实例

发布时间：2018-04-30 08:32

本文选题：地球化学岩相学 + 研究方法论　；参考：《矿物学报》2017年05期

【摘要】：地球化学岩相学主要研究方法包括岩相地球化学研究、矿物地球化学岩相学研究、多矿种共伴生富集成矿的技术创新和理论创新、构造变形筛分-同位素地球化学精确定年、复杂叠加成岩成矿系统的内部时间-空间结构、成岩成矿演化历史重建、受损生态环境系统的工程地球化学修复理论和技术等方面。在总结以往地球化学岩相学研究基础上,初步探索了地球化学岩相学研究内容、研究方法、应用实例和应用效果。以塔西地区砂砾岩型铜铅锌-铀区域成矿系统、智利月亮山铁氧化物铜金型矿床(IOCG)叠加成矿系统、云南个旧老厂砂锡和老挝三水铝石型铝土矿床等为例,论述了其地球化学岩相学类型及应用实例。以化学物相法和矿物地球化学岩相学方法等,揭示塔西富烃类还原性成矿流体多重耦合成矿作用特征,智利月亮山IOCG矿床电气石热液角砾岩构造系统物质组成和成岩成矿环境演化规律。
[Abstract]:The main research methods of geochemical petrography include lithofacies geochemistry, mineral geochemical lithofacies, technical innovation and theoretical innovation of multi-mineral cooccurrence enrichment and mineralization, structural deformation screening and accurate dating of isotopic geochemistry. The internal time-space structure of complex superimposed diagenetic metallogenic system, the history reconstruction of diagenetic and metallogenic evolution, the engineering geochemistry restoration theory and technology of damaged ecological environment system, etc. On the basis of summarizing the previous studies of geochemical lithofacies, the contents, methods, application examples and application effects of geochemical lithofacies are preliminarily explored. Taking the regional ore-forming system of gravel-type copper-lead-zinc-uranium in Taxi area, the superposition of IOCGs of Yueliangshan iron oxide copper-gold deposit in Chile, the Gejiuchang Sand Tin deposit in Yunnan Province and the Laotian bauxite deposit as examples, The geochemical lithofacies types and their application examples are discussed. By means of chemical facies method and mineral geochemical lithofacies method, the characteristics of multiple coupling mineralization of hydrocarbon rich reductive ore-forming fluids in Taxi are revealed. The material composition of tourmaline hydrothermal breccia system and the evolution of diagenetic and metallogenic environment of tourmaline hydrothermal breccia in Yueliangshan IOCG deposit Chile.
【作者单位】：有色金属矿产地质调查中心;
【基金】：国土资源部公益性行业科研专项项目(201511016-1) 中国地质调查局地质大调查项目(12120114081501)
【分类号】：P586;P59

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