Fluid inclusions in whiteschist in the ultrahigh-pressure metamorphic belt of Dabie Shan,China

作     者：Hongrui Fan Jingbo Liu Jinghui Guo Kai Ye Bolin Cong 

作者机构：Chinese Acad Sci Inst Geol & Geophys Beijing 100029 Peoples R China 

出 版 物：《Chinese Science Bulletin》 (CHINESE SCIENCE BULLETIN)

年 卷 期：2002年第47卷第12期

页      面：1028-1032页

核心收录：

学科分类：081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：This work was supported by the State Key Basic Research Program of China (Grant No. G1999075502) 

主　　题：fluid inclusion whiteschist ultrahigh-pressure Dabie Shan. 

摘      要：Hualiangting whiteschist in the Dabie Shan ultrahigh-pressure eclogite complex is a specific Mg-Al-rich metamorphic rock. Its protolith was a felsic dyke, which suffered replacement by high-pressure fluids during ec-logite-facies metamorphism. Based on fluid inclusion results in whiteschist, primary high-pressure fluids are CO2-bearing aqueous solutions. Those prove that there exists CO2-H2O fluid during the ultrahigh-pressure metamorphism. Pseu-dosecondary H2O inclusions were trapped during ultra-high-pressure exhumation, whereas secondary H2O inclusions were related to the latest evolutionary stage of the ultrahigh-pressure exhumation.