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采用分阶段加热爆裂法测定了不同成因热液矿床脉石英流体包裹体的氩同位素,计算出各温度段内大气氩的相对含量,从而,总结出大气降水热液矿床、再平衡岩浆水热液矿床等成矿流体的氩同位素组成特征及其演化规律。典型的大气降水热液矿床,其成矿流体以具有高大气Ar组分(约95%-100%)为特征;再平衡岩浆水热液矿床成矿流体的Ar同位素组成特征取决于与其有成因关系的初始岩浆水的Ar同位素组成及矿源层和围岩的性质,产于古老变质岩中的,一般以具有低大气Ar组分(约6%-20%)为特征,其它的再平衡岩浆水热液矿床在主成矿温度范围内一般为50%-60%左右。
Argon isotopes of fluid inclusions in different generative hydrothermal deposits were determined by staged heating burst method, and the relative contents of atmospheric argon in each temperature range were calculated. Therefore, the hydrothermal deposits in the atmosphere were summed up, Argon isotopic composition and evolution of ore - forming fluids such as ore deposits. The typical hydrothermal deposits in the atmosphere have their ore-forming fluids characterized by high Ar component (about 95% -100%). The Ar isotopic composition of the ore-forming fluid in the re-equilibrated magmatic hydrothermal deposit depends on its genesis The relationship between the Ar isotopic composition of the initial magmatic water and the nature of the source and surrounding rocks produced in the ancient metamorphic rocks is generally characterized by the presence of low-atmospheric Ar components (about 6-20%), and other re-equilibrated magmas Hydrothermal deposits in the main metallogenic temperature range is generally about 50% -60%.