摘要
拉拉铜矿位于横断山脉中段东侧,通过测定和分析矿区内硫、碳、氧同位素数值,表明成矿物质来源于火山活动,且通过C、O同位素的对比研究为本矿床的火山沉积成因提供了重要依据。并通过年代同位素测年的手段,分析早元古代、中元古代晚期和新元古代三个阶段的成矿过程形成了火山沉积—变质岩型铜矿,最终构建拉拉铜矿的成矿模式。
Lara copper mine is located on the eastern side of the middle section of the Hengduan Mountains.It is shown that the ore-forming material is derived from volcanic activity by the determination and analysis o f the sulfur,carbon and oxygen isotopic values in the mining area,and the comparison of C and O isotopes Sedi mentary origin provides an important basis.And through the means of isotope dating,the metamorphic rocks of the Early Proterozoic,Mesoproterozoic and Neoproterozoic stages were analyzed to form volcanic sedimentarymetamorphic rock copper deposits,and finally the metallogenic model.
出处
《世界有色金属》
2017年第20期250-252,共3页
World Nonferrous Metals
基金
成都理工大学地球科学学院资源勘查工程"地质矿产资源三维立体勘探开发虚拟仿真实验教学中心"项目(项目编号11100-17Z0517)资助
关键词
拉拉铜矿
同位素
年代学
成矿模式
Lara copper mine
isotopic
geochronological
ore-forming model