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本文通过对泰前断裂显微构造,石英组构特征进行研究,认为该断裂是一条自中生代形成以来经历了四次不同力学性质的活动断裂:断裂受到NE-SE向主压应力作用,发生了右旋压扭活动;断裂受到近东西向的主压应力作用,发生了右旋张扭活动;断裂受到NNW-近南北向的主压应力作用,发生了左旋压扭活动;断裂受到NE-SW向的主压应力作用,发生了左旋张扭活动。
Based on the study of the microstructure and the quartz structure of the Taiqian fault, this paper considers that the fault has undergone four active faults with different mechanical properties since Mesozoic formation: the fracture is affected by the NE-SE compressive stress and occurs The fracture is subjected to the principal compressive stress in the east-west direction, and dextral torsional deformation occurs. The fracture is subjected to the compressive principal compressive stress in the NNW-near north-south direction and the left-lateral compressive-torsional activity occurs. The fracture is controlled by NE-SW The main compressive stress to the role of the occurrence of left-twist torsional activity.