摘要
岔河铜矿是康滇地轴内一多成因矿床。本文从岩石宏观与微观特征、岩石化学成分、微量元素和重砂矿物等几个方面对岔河变质岩系进行原岩恢复；用同位素年龄、稀土元素和地层特征对比了康滇地区有关地层；描述了三类矿床宏观与微观地质特征；运用包裹体均—温度和包裹体成分测试成果探讨了成矿流体性质；最后采用裂谷理论讨论了成矿作用与太古代和早元古代地壳演化的关系。
The Chahe Cu deposit is a polygenetic mineral deposit in the Kang-Dianearth axis.In this paper,the origimal rock of the Chahe metamorphic rock series is recovered according to the macroscopic and microscopic characteristics,chemistry, trace elements and heavy minerals of the rlck;the metamorphic rock is correlated in isotope dating,REE and stratigraphical characteristics with the related strata of the Kang-Dian area;3 macroscopic and microscopic geological characteristics of this mineral deposit are described and the properties of metallogenetic fluid are discussed by using the test results of homogenization temperature and composition of inclusion. In the end,the relation between the metallogenesis and the evolution of Archaeozoic and Early Proterozoic earth crust is discussed basing upon the theory of rift.
出处
《云南地质》
1996年第2期154-163,共10页
Yunnan Geology
