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    中酸性岩浆体系成矿流体及微量元素地球化学特征

    Oreforming fluids related to the magmatism system Intermediateacid And their trace element geochemical characteristics

    • 摘要: 提要:从流体成矿作用角度出发,与酸性岩浆体系有关的成矿流体可以分为:酸性岩浆硅酸盐熔融体,岩浆-热液过渡阶段硅酸盐熔融体及其分异的流体,酸性岩浆熔体分异形成的热水成矿溶液。酸性岩浆体系主要提供热源和部分矿质,其提供的热源驱动地下水淋滤、萃取围岩中的成矿物质形成地下水热液成矿流体。变质岩混合岩化形成花岗质岩浆过程中所形成的混合岩化成矿流体。在此基础上,讨论了上述不同成矿流体的微量元素地球化学特征及其对成矿的控制作用。

       

      Abstract: Abstract:Oreforming fluids related to the magma system can be divided Intermediateacid according to fluid mineralization into silicate melt formed in the acid magmatic slage, the mixture of silicate melt and its exsolved hydrothermal fluids during the transitional stage from silicate melt to hydrothermal fluids hydrothermal exsolved from the Intermediateacid Orefluids Melts, and migmatized fluids formed during the formation Oreforming of granites migmatitization of metamorphic rocks. The acid magma system mainly provides heat and a part of ore sulstances and the heat provided ly it drives sulsurface water to leach the country rocks and extract ore sulstarces from the country rocks, thus forming sulsurface hydrothermal ore flids.On the basi S of these studies, detailed trace element geochemical characteristics of the different fluids and their Alovementioned Oreforming controls on mineralication are discussed.

       

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