东秦岭五朵山花岗岩体及金矿关系探讨

The Relation Between Gold Deposits and Wuduoshan Granite in Eastern Qinling

对产在五朵山花岗岩中的矿床(点)的地质背景、矿床特征、成矿流体及矿床成因等方面作了系统的研究。提出了断裂构造对成矿的主要控制作用,它起着沟通深部与浅部的作用,并使深部的含金流体沿断裂破碎带上升、沉淀而成矿。花岗岩与金矿的关系不是直接的,而是间接的。这一规律对寻找同类型的金矿有重要的指导意义。

The geological setting,deposit features,metallogenetic fluid and the genesis of the gold deposit hosted in the Wuduoshan granite were systematically discussed. The faults controlled the mineralization mainly and connected the deep with the surface by the upward migration of the deep-derived auriferous metallogenetic fluids via the fractured zones and by their later precipitation. The host granite and the gold deposit are not directly, but are indirectly associated. This cognition is of great significance in searching the same type of gold deposits.