摘要
通过对闹牛山铜矿区与成矿有关的次火山岩岩石化学分析,以及对矿区火山-次火山岩微量元素、稀土元素的分析,结合相关的铅同位素分析,综合分析了该矿床的成矿地质背景。认为:闹牛山铜矿床构造环境属于大陆边缘裂陷带的局部隆起区,成矿火山岩浆为钙碱性,其来源于地壳深部或上地幔,并有上部地壳物质混染。
Metallogenic background of the Naoniushan copper deposit comprehensively analysed through the rock chemistry analysis of the associated subvolcanic rock with mineralization , trace element and REE analysis of the volcanic-subvolcanic rocks in the ore field, combined with the related lead isotope analysis. It is considered that the tectonic environment of the Naoniushan copper deposit was attributed to the local rising area in continent margin depression zone and the metallogenic volcanic magma was calc-alkaline originated in deep crust or mantle and hybridized with upper crust matter.
出处
《矿产与地质》
2004年第3期240-244,共5页
Mineral Resources and Geology
基金
科技部社会公益研究专项资助项目。项目编号:2001DIB10054。
关键词
铜矿床
成矿地质背景
次火山岩
内蒙古东部
copper deposit
metallogenic background
subvolcanic rock
east inner mongolia
