THE COUPLING MECHANISMS OF MESOZOIC? ENOZOIC RIFT BASINS AND EXTENSIONAL MOUNTAIN SYSTEM IN EASTERN CHINA
THE COUPLING MECHANISMS OF MESOZOIC? ENOZOIC RIFT BASINS AND EXTENSIONAL MOUNTAIN SYSTEM IN EASTERN CHINA
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作者：
Liu He
中国东部中新生代伸展构造体系由裂谷盆地和伸展山地体系组成。典型的盆地有北部的松辽断陷盆地和大兴安岭、中部的华北断陷盆地和太行山、南部的江汉断陷盆地和雪峰山。底侵、对流和拆层是大陆裂谷和伸展地球动力系统的三大机制。裂谷盆地与伸展山系的耦合是壳幔边界相互作用演化的结果。
The Mesozoic-Cenozoic extensional tectonic system in eastern China is composed of rift basins and extensional mountain system. There are three typical couples: Songliao rift basin and Great Xing'an mountains in the northern part, the North China rift basin and the Taihang mountains in the middle, and the Jianghan rift basin and the Xuefeng Mountains in the southern area. The underplating, convecting, and delamination are the three major mechanisms in the continental rifting and extensional geodynamic system. The coupling of rift basin and extensional mountain system is the effect of evolution of the interaction of crust mantle boundary.