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塔中隆起位于塔里木盆地中部,是在前震旦变质基底上形成的长期继承性巨型古隆起,经历了多期构造演化,形成了向西发散、向东收敛的“帚状”逆冲断裂,同时发育北东向的走滑断裂,造成塔中隆起平面上南北分带、东西分块的构造格局。分析了盆地内多期断裂的成因及期次,以及走滑断裂展布及发育模式,探究继承性古隆起的形成与演化。古隆起断裂发育、构造复杂,受多条北西向大型断裂控制,总体表现为“三隆三凹”的构造格局。
The Tazhong uplift is located in the central part of the Tarim Basin. It is a long-standing succession of giant paleohighs formed on the former Sinian metamorphic basement and underwent multi-stage tectonic evolution, forming a “broom” thrust converging to the west and converging to the east At the same time, the strike-slip faults developed north-eastward, resulting in the tectonic framework of the north-south zoning and east-west subduction on the uplift plane of the tower. The origin and period of multistage faults in the basin and the distribution and development pattern of strike-slip faults are analyzed to explore the formation and evolution of inherited paleohighs. The paleo-uplift faults developed with complicated structures and were controlled by a large number of NW-trending faults. The overall pattern was tectonic pattern of “Sanlong Sancai”.