阿尔金西段古山根岩石的变质变形历史及区域构造意义

This project focuses on the western segment of the Altyn Tagh, western China. Based on studies of deformation, metamorphism, petrology,mineralogy, geochemistry and geochronology, the project have presented the PT path of metamorphic evolution and eclogite-facies metamorphic age (500Ma) of eclogites, and firstly provide proof of eclogite formation under UHP conditions. In combination with studies on eclogites in the western segment of the North Qaidam Mountains, a UHP metamorphic belt displaced by the Altyn Tagh fault in western China have been confirmed .

本项目以变形构造和变质岩石学研究相结合,辅以同位素年代学等其它方法，以代表阿尔金鞫喂派礁牧窕匝壹奥榱Ｑ蚁嘌沂芯慷韵螅氐阊芯科浔渲首饔眉氨湫巫饔美罚⒘窕匝壹奥榱Ｑ蚁嘌沂腜TtD演化路径，从而探究阿尔金西段古山根的构造热历史。这项芯坎唤龆园⒍鸸乖齑男纬珊脱莼叶灾泄鞑康拇蟮毓乖煅芯烤咧匾庖濉