【摘要】 作者对桂东北地区铅锌矿床中银的产出特征和富集规律进行了阐述。银主要以首次发现的含银硫盐矿物（深红银矿、银黝铜矿和含银锌黝铜矿等）产出，其次是杂质元素分散在金属硫化物中，银的含量按方铅矿、黄铜矿、闪锌矿、黄铁矿的顺序依次降低。矿体从上向下具Ｃｕ，Ｐｂ（Ａｇ），Ｚｎ→Ｐｂ，Ｚｎ→Ｚｎ的垂向变化规律，银主要富集于上部，并与方铅矿、黄铜矿紧密伴生。更多还原

【Abstract】 The author deals with the occurrence and enrichment of silver in lead-zinc ore deposits in northeast Guangxi.Silver has two forms in its occurrence:mainly in the form of silver-bear iug sulfosalts(pyrargyrite,freibergite and Ag,Zn-bearing tetrahedrite and others) discovered for the first time;secondary,in the form of impurities scattered in the memllic sulfides.Content of the sliver is decreasing from galena,to chalcopyrite,sphalerite and to pyrite.The ore body has vertical zonation from top to bottom in the order of Cu,Pb(Ag),Zn to Pb,Zn and to Zn,ob viously,the silver is enriched at upper part of the ore body and has a close relation with galena and chalcopyrite.更多还原