云母化学成分在成矿机理研究中的应用

Application of Mica Chemical Composition in the Study of Metallogenic Mechanism

文章归纳了多年来利用云母化学成分研究成矿机理的应用情况,总结大多采用的成矿环境条件的计算与判定方法。最终得出:根据云母化学成分中主微量元素含量可推测源区物质来源及成矿环境条件,判定是否受到后期流体的改造作用,推测成矿过程和条件、成矿潜力及岩浆分异演化程度,判定岩石成因类型等已得到一定程度的证实,证明以云母作为示踪矿物、反演成矿过程的岩浆演化及流体作用过程是基本可行的。

This paper summarizes the application of the mica chemical composition in the study of the metallogenic mechanism for many years,and summarizes the calculation and judgment methods of metallogenic environmental conditions mostly used.The final result shows that according to the content of major and trace elements in mica chemical composition,it is possible to speculate the material source and metallogenic environmental conditions in the source area,judge whether it is modified by later fluids,speculate the metallogenic process and conditions,metallogenic potential and magmatic differentiation evolution degree,and determine the genetic type of rocks,which have been confirmed to a certain extent.It has been confirmed to a certain extent that it is basically feasible to use mica as a tracer mineral to invert the magmatic evolution and fluid action process of the metallogenic process.