大湖金矿金赋存状态的研究

Study on the occurrence of gold in Dahu Gold Mine

大湖金矿为典型的石英脉型金矿．该矿含金８．７ｇ／ｔ，绝大多数金粒以微细粒状与黄铁矿和黄铜矿紧密连生，金粒以裂隙金和粒间金为主，包裹金所占比例较少，矿石中金的理论回收率为９５．６％．

Dahu Gold Mine is of quartz vein type, with the grade of gold being 8. 7 g/t. In the ore, most of the gold grains, which are in the form of micrograin and dominated by crevice-gold and inter-granular gold, with a small proportion of included gold, are closely locked with pyrite and chalcopyrite. The theoretical recovery of gold in the ore is 95. 6%.