珊溪水库地区深部构造探测研究

通过对珊溪水库地区进行深地震反射探测，获得该地区近地表至地壳中部的精细几何结构和深浅构造关系。结果表明，该地区地壳结构在纵向具有明显的分带性，在横向显示出以断层为界的块状结构特点。研究区内走向北西的双溪-焦溪垟断层向深部延伸超过20 km进入中下地壳，为该区域内主要控制性断层，主要影响周围浅部断层的发育，是该地区主要发震构造。

Research on Deep Crustal Structure in Shanxi Reservoir Area

The fine crustal structure and deep-shallow tectonic features in Shanxi reservoir area are explored using deep seismic reflection. The results show that the crust in this area has obvious zoning features in the vertical direction and block structures by faults in the horizontal direction. In the studied area, there is a Shuangxi-Jiaoxiyang fault, which strikes to the northwest and extends about 20 km to the mid-lower crust. It is the main controlling fault in this area, affecting the developing of lower faults in nearby regions, and is the main seismogenic structure of earthquakes in this area.