摘要
在中国陆内南北板块之间古缝合线内大别-胶南高压地体中。分布着一套变质程度不一的杂岩系,我们将其划分出三期高峰变质作用形成的不同性质变形变质岩相带,并阐述了各自所代表的矿物流体包裹体特征,计算出它们形成时的温度、压力、氧逸度、差异应力等热动力参数,为揭示地体变形变质环境和构造演化特点,提供了可靠(?)数值根据。
A suite of metamorphic complexes differing in metamorphic grade is distributed in the Dabie-Jiaonan high-pressure terrane situated on the ancient suture llne between the south and north continental plates in China, Three metamorphic and deformed facies belts are distinguished, where were formed in three peak metamorphic periods. The characteristics of fluid inclusions in minerals from each of the facies are described, and the calculated thermodynamical and kinetic parameters such as temperature, pressure, oxygen fugacity, stress difference, etc. are presented. All this provides reliable grounds to reveal the geological setting of metamorphic-deformational event and the tectonic evolution of the terrane.
出处
《矿物学报》
CAS
CSCD
北大核心
1991年第4期305-316,共12页
Acta Mineralogica Sinica
基金
地质行业基金
关键词
杂岩
变质
流体
包裹体
高压
地体
high-pressure terrane
metamorphic complex
fluid inclusion
thermodynamical and kinetic condition