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

被引:8
|
作者
Fan, HR [1 ]
Liu, JB [1 ]
Guo, JH [1 ]
Ye, K [1 ]
Cong, BL [1 ]
机构
[1] Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
来源
CHINESE SCIENCE BULLETIN | 2002年 / 47卷 / 12期
关键词
fluid inclusion; whiteschist; ultraligh-pressure; Dabie Shan;
D O I
10.1007/BF02907576
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
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 eclogite-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. Pseudosecondary H2O inclusions were trapped during ultrahigh-pressure exhumation, whereas secondary H2O inclusions were related to the latest evolutionary stage of the ultrahigh-pressure exhumation.
引用
收藏
页码:1028 / 1032
页数:5
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