摘要
通过介绍西藏程巴钼矿床的地质特征,对矿床的成矿作用做简单分析。研究结果表明,在印度—欧亚大陆板块碰撞晚期,渐新世正长花岗岩沿断裂侵入到古新统罗布莎群地层和始新世二长花岗岩中,产生围岩蚀变,从而形成铜钼矿床。期后的含矿热液作用不仅提供了新的成矿物质来源,而且形成了新矿化叠加,进一步富集成矿。
This article shows a simple analysis of the Mineralization of the Chengba molybdenum ore deposit in Naidong, Tibet,through the introduction of basic geological features of it. The results show that Oligocene syenite granite intruded through to the Paleocene Eocene strata and the Norbusa monzonitic granite forming the wall rock alteration, thereby forming the copper molybdenum deposit in the late period of the collision between the Eurasian plate and the India plate. The ore-bearing hydrothermal fluid after the period not only provided the new source of the material, but also formed the new mineralization and superimposed further enriched mineralization.
出处
《四川有色金属》
2016年第2期27-30,共4页
Sichuan Nonferrous Metals
基金
中国地质调查局项目(1212010813025)
关键词
程巴
钼矿
地质特征
成矿作用
Chengba
molybdenum ore
geologic features
mineralization
