摘要
塔里木显生宙盆地演化经历了震旦纪—泥盆纪、石炭纪—二叠纪和中—新生代３个一级构造旋回。这种旋回性主要与板缘的拉张裂解、俯冲消减和碰撞闭合等板块构造运动体制有关。每个一级构造旋回一般是以拉张体制下的盆地形成开始，尔后转化为挤压体制下的盆地，最终以构造反转结束。塔里木显生宙盆地演化可进一步分为６个二级演化阶段，即震旦—奥陶纪克拉通内裂陷盆地发展阶段、志留—泥盆纪克拉通内挤压盆地演化阶段、石炭—二叠纪弧后裂陷盆地形成阶段、三叠纪弧后前陆盆地发展阶段、侏罗纪—老第三纪碰撞复活前陆盆地形成阶段和新第三纪—第四纪碰撞后继盆地演化阶段，其划分标志是以盆地性质及其构造格局的重大转变为依据的。
The evolution of the Tarim basin in Phanerozoic time has experienced Sinian Devonian, Permo Carboniferous and Meso Cenozoic tectonic cycles. The cyclicity of the basin evolution is mainly related to plate tectonic regime of extension, subduction and collision. Every tectonic cycle is characterized by the basins formed in extension regime at the beginning, and then transformed into basins in compressive regime, and terminated in tectonic inversion at the end. Six evolutionary stages of the Tarim basin may be further recognized in Phanerozoic time. These are: (1) Development stage of intra cratonic extensional basins of Sinian Ordovician, (2) Evolutionary stage of intra cratonic compressional basins in Silurian Devonian, (3) Formation stage of back arc extensional basins of Permo Carboniferous, (4) Development stage of retro arc foreland basins in Triassic, (5) Formation stage of collisional reactivated foreland basins of Jurassic Paleogene, and (6) Evolutionary stage of collisional successor basins since Miocene. The division of the evolutionary stages is based on significant change of basin type and tectonic framework.
出处
《地学前缘》
EI
CAS
CSCD
1997年第4期318-324,共7页
Earth Science Frontiers
基金
国家重点科技攻关项目
关键词
盆地演化
构造旋回
构造阶段
盆地类型
basin evolution, tectonic cycle, tectonic stage, Tarim Basin
