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中亚造山带是著名的增生型造山带之一,被认为大致由13个地体碰撞拼贴而成,演化时间约为750~250 Ma,而内蒙古中部索伦克缝合带的形成则代表着古亚洲洋的最终闭合。根据索伦克缝合带内一些典型杂岩的地质特征及其年代学研究成果,讨论古亚洲洋的最终闭合时间及其构造演化过程,认为古亚洲洋于晚二叠世最终消亡,通过多条近平行俯冲-增生杂岩带的相互拼贴碰撞造山,形成了兴蒙造山带,使得华北板块与南蒙古陆块发生接触。
The Central Asian orogenic belt is one of the most famous accretionary orogenic belts and is believed to have been roughly collided and collapsed by 13 terranes with an evolution time of about 750-250 Ma. The formation of the Solnock suture in central Inner Mongolia represents The closing of the ancient Asian Ocean. According to the geological characteristics of some typical complex rocks in the Sorensen suture zone and their chronological research results, the final closure time and tectonic evolution of the Paleo-Asian Ocean are discussed. The Paleo-Asian Ocean eventually died out in the Late Permian. The nearly parallel subduction-accretionary complex collisional collision orogeny, forming the Xingmeng orogenic belt, making the North China Plate and South Mongolia land contact.