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塔里木盆地塔中区块受区域构造背景应力场分布影响,发育多期、多类型断裂。在加里东时期板内构造活动强烈,由于板块南部的碰撞从南向南东迁移,构造运动形成了一系列逆冲构造,逆冲断层及其分支断裂发育,控制油气运移及构造形态。探讨分析了塔中古隆起挤压断裂展布特征及分级,为识别研究区构造地质背景提供理论依据。
The Tazhong block in the Tarim Basin is affected by the stress field distribution in the regional tectonic settings and develops multi-stage and multi-type faults. During the Caledonian period, intraplate tectonic activity was intense. Due to the southward collision of the southern plate, the tectonic movement formed a series of thrust structures, and the thrust faults and their branch faults developed and controlled the hydrocarbon migration and tectonics. The characteristics and classification of extrusion fracture distribution in Tazhong paleo-uplift were analyzed and discussed, which provided a theoretical basis for identifying tectonic geological background in the study area.