岩矿鉴定在某铅锌银矿床中的应用  

Application of rock ore identification in a Pb-Zn-Ag deposit

作　　者：杨菊 赵凯 YANG Ju;ZHAO Kai(Hebei Regional Geological Survey Institute,Langfang 065000,China;Institute of geophysical and geochemical exploration,Chinese Academy of Geological Sciences,Langfang 065000,China)

机构地区：[1]河北省区域地质调查院,河北廊坊065000 [2]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000

出　　处：《世界有色金属》2021年第8期223-224,共2页World Nonferrous Metals

摘　　要：岩矿鉴定是矿床研究的重要辅助性学科,促进矿床学研究向更深层次的研究发展。岩矿鉴定通过镜下矿物类型、含量以及矿石组构等,分析其矿物生成先后顺序。本文以某地区铅锌银矿床为例,结合3件光片鉴定,其矿石矿物中有方铅矿、闪锌矿、自然银、深红银矿、黄铜矿、黝铜矿等,提出黄铜矿晚于闪锌矿,闪锌矿晚于方铅矿,方铅矿晚于黝铜矿,黝铜矿晚于自然银的认识,为该区域找矿勘查工作提供了参考。Rock and mineral identification is an important auxiliary subject of deposit research,which promotes the development of deposit research to a deeper level.The sequence of mineral formation is analyzed by microscopic mineral type,content and ore fabric.Taking a lead-zinc silver deposit in an area as an example,combined with three pieces of photo identification,the ore minerals include galena,sphalerite,natural silver,dark red silver,chalcopyrite,tetrahedrite,etc.it is proposed that chalcopyrite is later than sphalerite,sphalerite is later than galena,galena is later than tetrahedrite,tetrahedrite is later than natural silver,which provides a reference for the regional prospecting and exploration.

关 键 词：岩矿鉴定 金属矿物 成矿先后顺序 

分 类 号：P624[天文地球—地质矿产勘探]