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白银公司露天矿主要由折腰山(一采场)和火焰山(二采场)两个矿区组成,属黄铁矿型铜矿床,赋存于下古生界的细碧角斑岩系中,矿体呈不规则的扁豆状、透镜状和似层状,围岩主要是中粒石英角斑凝灰岩,近矿围岩蚀变强烈。矿石可分为致密块状和浸染状两种,前者与围岩界线清楚,后者与围岩界线不清。矿石工业类型分为块状含铜黄铁矿、块状含铜锌黄铁矿、浸染状铜矿和黄铁矿四种。为
The open-pit mine of Baiyin Company is mainly composed of two mining areas, namely, the Yaojian Mountain (a stope) and the Huoyanshan (a second stope), belonging to a pyrite-type copper deposit and occurring in the Xipeijiao porphyry of the Lower Paleozoic , The ore body is irregular lentil, lenticular and stratified. The surrounding rock is mainly medium-grain quartz horn spot tuff, and the alteration of nearby ore rocks is intense. Ore can be divided into two kinds of compact block and disseminated, the former clear border with the surrounding rock, the latter with the rock boundary ill-defined. Ore industry types are divided into massive copper-bearing pyrite, massive copper-zinc pyrite, disseminated copper and pyrite four. for