茅店韧性剪切带中物质组分的迁移、集散初探

THE MIGRATION AND CONCENTRATION OF CHEMICAL COMPONENTS IN THE PROCESS OF THE MAODIAN DUCTILE SHEARING ZONE

本文以武夷山隆起带中段茅店韧性剪切带为例，通过镜下观察和化学分析，对韧性剪切带中两个系列的糜棱岩与其相应的原岩在矿物成分和化学组分等方面进行了对比分析，以探讨构造形变过程中物质成分的迁移、集散规律。同时，对惰性组分的集散机制进行了初步探讨。

Taking Maodian ductile shear zone in the mid-section of Wuyishan upwelling belt as an example,the authors of this paper contrast and analyse the changes of the mineralogical and chemical compositions of two series of mylonites in the ductile shear zone and their protoliths from microscopic studies and the results of chemical analyses.The migration and concentration features of the chemical components are then studied in the process of structural deformation.At the same time,the concentration mechanism of inert components in the mylonites is discussed preliminarily.