摘要
利用高分辨率浅层地震方法对唐山断层进行精细探测 ,得到了 30 0m以上尤其是近地表结构的清晰图像 ,证明NW倾向的唐山断层在活动时 ,南段是一个高角度的正断层 ,向上错断了全新统 (Q4 ) ;北段则表现出逆断层的性质。
A detailed detection of the Tangshan fault was carried out by using high resolution shallow seismic sounding technigue. Distinct images of the fault structure above 300m depth and especially near the sueface were obtained through the detection. The results show that during the faulting process, the southern segment of the NW dipping Tangshan fault appeared as a high angle normal fault dissecting the Holocene deposits, while the northern segment of the fault appeared as a reverse fault. This may indicate the segmentation of the activity of the Tangshan fault.
出处
《地震地质》
EI
CSCD
北大核心
2001年第1期93-97,共5页
Seismology and Geology
基金
地震科学联合基金! ( 1990 57)资助
