青海达达肯乌拉山铅锌矿床原生晕深部找矿预测
Northwestern Geology（2018）
Abstract
达达肯乌拉山铅锌矿床位于柴北缘成矿带南部,是近年来在泥盆系牦牛山组陆相火山岩中新发现的矿床.笔者对矿区00勘探线上3个钻孔岩心样数据,运用格里戈良原生晕分带指数法和构造叠加晕找盲矿法研究了原生晕特征.研究表明,Mo、Cu是铅锌矿体前晕,Sb是近矿晕,Au、As、Ag是矿尾晕;垂向分带序列由下向上为Ag→ As→A u→ Pb→ Zn→ Sb→ Cu→ Mo,序列具反向分带特征,铅锌成矿成晕是多次叠加的结果;矿(化)体轴向深部有前、尾晕叠加共存的重要信息,推测存在隐伏矿体.综上建立了该矿床深部找矿预测的成矿成晕模型.
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Key words
primary halo,deep prospecting prediction,igneous rock of Maoniushan Formation,Dadakenwulashan lead-zinc deposit,Qinghai
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