【摘要】 <正> 一、前言山西断块指秦岭以北、燕山以南,东西两侧分别被北北东向太行山山前断裂带、离石构造带所围限的区域。其构造型式特殊、强震活动频繁、受到中外地震地质学者关注。前人对山西断块内的活动构造进行过许多研究,对山西构造的形成演化有多种解释。本文遵循活动构造与中新生代构造演化相关、地表构造与深部构造相关,不同形态、不同序次的多种构造具有成因联系的思路,探讨山西断块中新生代构造演化及强震发生的地点。更多还原

【Abstract】 On the bases of a great deal of geological information,using the analysis method of en echelon fold—fault to different pattern and different generation structures which are related in origin,the paper shows there were three North—South trending shear zones in Shanxi Fault Block during Mesozic.The three zones were related with each other and each zone had it’s own sets of en echelon folds and faults.Reverse faults sited on anticlines and intersected with anticline.axises in small angles while two side tope of the faults reached the sides of synclines.These faults became the boundary faults of fault basins during Cenozoic.The research also found three anticlines which are NEE Taiyue Mountain anticline,NNE Huoshan-Matoushan anticline in Jinzhong area and Suoxian-Liulengshan anticline in the north area of Shanxi province.Some longitudinal and cross faults accomanied formation of the folds.Finally,the paper discusses the regions of future strong earthquakes.更多还原