辽宁五龙金矿铋矿物与金矿化关系研究

A STUDY ON THE RELATIONSHIP BETWEEN BISMUTH MINERALS AND GOLD MINERALIZATION IN THE WULONG GOLD DEPOSIT,LIAONING PROVINCE

辽宁五龙金矿的铋矿物为辉铋矿、自然铋和辉铅铋矿，它们与金矿化关系非常密切。在高温条件下,Bi与Au呈固溶体形式或某种化合物形式存在，随着温度的下降，Bi与Au分离构成两种独立矿物，二者紧密共生。在含金石英脉矿体中，铋矿物的多少直接影响矿石品位，铋矿物是重要的金矿化指示矿物。

Bismuth minerals in the Wulong gold deposit are closely associated with gold mineralization,including bismuthinite, bismuth and galenobismutite. Bi and Au exist as solid solution at hightemperatures, but the solid solution may be separated two independent mineral phases with decreasing temperature. They are closely coexisting. The amount of bismuth minerals is in connection with the grade of gold ore. Bismuth minerals are an important indicator of goldmineralization in auriferous quartz veins.