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斑岩型铜矿床围岩蚀变有何特点

更新时间: 2020-07-11 00:00:00     

斑岩铜矿具有明显的蚀变分带,矿体发育在广泛出现热液蚀变岩的地带,自矿体向外依次分为钾化带、石英绢云母化带、泥质带、青磐岩化带。

蚀变作用既影响岩(矿)石的结构、构造,又导致矿石中主要氧化物含量和铜品位的变化。矿化与蚀变引起的物探、化探和遥感异常有较好的关联性,异常是找矿与勘查的直接标志和指导工程布置的依据。

关键词: 矿床 围岩 特点

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