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本文报道了笔者对分布于山东荣成、文登、威海、青岛、胶南、诸城、日照和莒南等地的榴辉岩所作的岩石学矿物学和地球化学研究。确定了这一巨型榴辉岩带是由两条相互重合的榴辉岩带所构成;一条为高温高压成因的A—B类榴辉岩带;另一条为低温高压成因的C类榴辉岩带。它们形成于早元古代早期华南陆块向华北陆块的俯冲,并经受了早元古代角闪岩相变质作用的迭加。早元古代早期华北陆块发生向南运动的大陆推覆体构造,使两种不同成因类型的榴辉岩带在空间上重迭。最后推测这一榴辉岩带的分布代表着我国东部华北陆块与华南陆块的分界界限。
This paper reports on the petrology and geochemistry of petrologic made by eclogites distributed in Shandong Rongcheng, Wendeng, Weihai, Qingdao, Jiaonan, Zhucheng, Rizhao and Taonan. It is confirmed that this giant eclogite zone consists of two eclogite zones coinciding with each other. One is the A-B eclogite belt which is a genesis of high temperature and pressure and the other is a C-type eclogite which is of low temperature and high pressure. band. They formed in the early Early Proterozoic South China Block to the North China continent subduction, and experienced the Early Proterozoic amphibolite facies superposition of facies. In the early Early Proterozoic, the continental nappe structure that occurred during the southward movement of the North China terrane made the eclogites of two different genetic types overlap in space. Finally, it is speculated that the distribution of this eclogite belt represents the demarcation boundary between North China land mass and South China land mass in eastern China.