用浅层地震剖面研究大城东断裂的活动性

Application shallow seismic profile research on the activities of the eastern Dacheng fault

摘要:

地震方法是针对厚覆盖区断裂的一种不可替代的探测技术，在大城东断裂上采用浅层地震探测方法，获得了2条高质量叠加时间剖面图以及深度剖面图，这些图像清晰地显示了大城东断裂的浅部构造特征以及活动特征。本次探测工作中，在大城东断裂的东侧发现了1条倾角较陡的断裂，表明大城东断裂是由2条断裂组成的断裂带。

Abstract:

The paper uses shallow seismic reflection detecting techniques to identify the distribution conditions of the fracture of the eastern Dacheng Fault. The results show the characteristics of shallow structure and the activity of the fault. The detection finds a steep fault with a sharp dip in the eastern Dacheng Fault. This shows the eastern Dacheng Fault consists of two fault belts.