论文部分内容阅读
花岗岩-绿岩地体由绿岩带(变质火山沉积岩系)和侵入其中的灰色片麻岩(TTG)-花岗岩岩体组成,通常经历绿片岩相的变质,也有少数经历高级变质——角闪岩相-麻粒岩相。这些高级变质的花岗岩-绿岩地体的成因对理解太古宙大陆动力学尤为重要。本研究主要通过分析和对比鞍山-清原和怀安-遵化两个高级变质花岗岩-绿岩地体的岩石学特征、成分组成特征和结构特征来探讨其成因和构造
The granitic-greenstone body consists of a greenstone belt (metamorphic volcanic sedimentary rock series) and intrusive gray gneiss (TTG) -strike granodiorite, usually experienced metamorphism of greenschist facies, and a few experienced advanced metamorphism-amphibolite Phase - granulite facies. The origin of these high-grade metamorphic granite-greenstone terrains is especially important for understanding the dynamics of the Archean continent. This study mainly analyzes and compares the petrological characteristics, compositional composition and structural characteristics of two high-grade metamorphic granite-greenstone terraces in Anshan-Qingyuan and Huai’an-Zunhua to discuss their genesis and structure