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通过成矿热液矿物流体包裹体的成分、热力学和同位素地球化学研究,初步认为本区金矿原生成矿流体主要沿深大断裂通道直接来自上地幔;引进纳米理论和纳米效应,提出深源成矿流体中Au主要以纳米微粒自然金形式迁移,但随着流体运移至地壳成矿过程中,其物理化学条件随着地层水、大气降水和地层物质的局部混染和覆盖发生改变,导致流体中的部分Au呈Au—Si配合物和Au—S配合物形式在一定范围内迁移,进而三种迁移形式又在一定条件下发生分解、沉淀和金的聚集;由此进一步认识到,可能正是这种深源与浅源的混染并交代岩石,为形成大型和超大型矿床创造了有利条件
Based on the composition, thermodynamics and isotope geochemistry of fluid inclusions in ore-forming hydrothermal fluids, it is preliminarily believed that the primary ore-forming fluids of the gold deposits in the area are mainly derived from the upper mantle directly along the deep and large fault channels. The introduction of nanometer theory and nano effect, In the ore-forming fluids, Au mainly migrated as the natural gold nanoparticles. However, with the migration of fluids to crustal mineralization, the physicochemical conditions of the ore-forming fluids changed with the local contamination and overburden of formation water, As a result, some Au in the fluid migrates in a certain range in the form of Au-Si complex and Au-S complex, and then the three migration forms decompose, precipitate and accumulate under certain conditions. As a result, It may be that such deep-sourced and shallow-sourced dye-in-the-rocks and the replacement of rocks provide favorable conditions for the formation of large and very large deposits