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矿床地质  2003 

挥发份在夕卡岩型和斑岩型矿床形成中的作用

Keywords: 地球化学,挥发相,花岗质岩浆过渡过程,夕卡岩型矿床,斑岩型矿床

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Abstract:

通过总结多年来对夕卡岩型和斑岩型矿床的研究所获得的成果,作者认识到挥发相在这些矿床形成过程中的重要地位和意义。文章系统讨论了在花岗质岩浆中挥发相的形成和时空演化、挥发相的组成及其与硅酸盐熔融体的不相溶性,提供了挥发相在夕卡岩型和斑岩型矿床中存在的证据,提出挥发相对花岗质岩体顶部和邻近围岩的微细裂隙、爆破角砾岩、夕卡岩、碱质硅酸盐交代岩和富含挥发份矿物的形成,以及在矿质的迁移富集等各个过程中都具有十分重要的意义。

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