云南新平东么矿床地质特征

摘要

东么矿区铁矿体主要受次火山岩体及次火山机构控制，次火山活动后期富钠质残余岩浆发生爆发及交代作用是主要的成矿控制因素，矿床类型为受变质次火山气液钠化交代型。厚大次火山岩体凹兜部位，火山角砾岩及钠化交代角砾岩分布区是最好的找矿地段。%dongme Iron ore is mainly controlled by subvolcanic body and subvolcanic agency,Rich sodic residual magma eruption and metasomatism are the main mineralization controlling factors in post -secondary subvolcanic activity,Deposit type is meta-morphosed volcanic gas and liquid Na metasomatic deposit,the area with the sunken parts of large -scale subvolcanic body and the volcanic breccias,Na metasomatic breccias is the best prospecting area.