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    秦岭—大别山地区钼矿类型与矿化组合特征

    Mo deposit types and mineralization assemblage characteristics in Qinling-Dabie Mountain area

      摘要
    • 摘要: 提要：秦岭—大别山地区是中国乃至世界上重要的有色金属、贵金属成矿带，钼矿为本地区最具特色的矿产，并且分布广、类型多、储量大。根据钼矿赋存状况、与岩浆岩的空间关系、矿物组合、矿体产状、热液蚀变等特征，初步将秦岭—大别山地区的钼矿床划分为5个类型7个亚型和10个矿床式。不同类型矿床中成矿元素的分布组合特征不同，可分为3种矿化组合，即Mo（Mo-W-Re）、Mo-Cu-Fe和Mo、Pb、Zn、Ag、Au。根据新的成矿理论，不同类型钼矿的成矿流体与熔体的关系是不一样的，可以分出4种关系。秦岭—大别山地区钼矿类型的系统划分，对本区钼矿的找矿勘查工作提供了理论支撑，具有重要的理论和经济意义。

       

      Abstract: Abstract：The Qinling-Dabie Mountain area, characterized by widely distributed Mo deposits with various types and large reserves, is an important non-ferrous and precious metal ore-forming belt in China and even in the whole world. According to characteristics of Mo deposits in such aspects as modes of occurrence, spatial relationship with magmatic rocks, mineral assemblage, attitude of ore body and hydrothermal alteration, the authors preliminarily divided Mo deposits in Qinling-Dabie Mountain area into 5 types, 7 subtypes and 10 Mo deposit types. Different types of ore deposits have different characteristics of ore-forming elements, which can be assigned to three assemblages： Mo(Mo-W-Re), Mo-Cu-Fe and Mo-Pb-Zn-Ag-Au. According to the new metallogenic theory, there exist four kinds of relationships between magmatic melt and ore-forming fluids, which can explain the geneses of these different types of Mo deposits. The systematization of the types of Mo deposits in Qinling-Dabie Mountain area has important theoretical and economic significance and can provide a theoretical support to the prospecting work.

       

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