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塔里木盆地是一个发育在塔里木反块中部的大型克拉通盆地,它位于一近东西向展布的地幔隆起之上,其地壳厚度为41~50km。盆地基底结构复杂,由太古界—下元古界深变质岩系和中上元古界浅变质岩系经800Ma前的热构造事件拼合固结而成。基底四周被深大断裂切割,控制和影响着盆地的形成与演化。震旦纪,岩石圈伸展分裂,塔里木盆地南北缘均为被动大陆边缘,其裂谷作用具有北强南弱东强西弱的特点。因此,在盆地部形成夭折裂谷,盆地西南则表现为克拉通内坳陷
The Tarim Basin is a large craton basin developed in the middle of the Tarim block. It is located on a nearly EW-trending mantle uplift with a crust thickness of 41-50 km. The basal structure of the basin is complex and consists of the consolidation of the deep tectonism of the Archean-Lower Proterozoic metamorphic rocks and the metamorphism of the Mesoproterozoic Proterozoic metamorphic thermal events before 800 Ma. The basement is severed by deep faults and controlled and influenced the formation and evolution of the basin. During the Sinian, the lithosphere extended and split. The northern and southern margins of the Tarim Basin are all passive continental margins. Its rifting has the characteristics of weak north and strong south and weak strong east and weak west. Therefore, the formation of abrupt rifts in the basin, southwest of the basin showed cratonic intrusion