摘要
从成矿作用地球化学的观点,探讨了元素在混合岩化过程中迁移,富集成矿的规律.Au在进变质过程中发生活化迁移,在退变质过程中富集成矿.构造破碎蚀变岩型金矿以渗滤交代成矿作用为主,含金石英脉金矿以扩散—充填交代成矿作用为主,二者是脉动式成矿热液体系在不同时空上的产物.
From the point of view of geochemistry, the regularity of migration and enrichment of ore forming elements during migmatization is discussed in this paper. During the progressive metamorphism stage the element gold is in an activated migration state, while in the regressive metamorphism stage it is enriched to form an mineral deposit. The gold deposit in tectonoclastic altered rocks is mainly formed by infiltration metasomatic metallogenesis, While those of gold quartz vein type are chiefly by diffusion-infilling metasomatic ore forming mineralization. Both of them are the products generated by the pulsating hydrothermal solution in different time and space.
出处
《地质与勘探》
CAS
CSCD
北大核心
1991年第5期47-53,共7页
Geology and Exploration
