唐山-河间-磁县地震构造带浅层地震勘探

Shallow Seismic Exploration of Tangshan-Hejian-Cixian Seismic Tectonic Zone

鉴于唐山-河间-磁县地震构造带东边界断裂的位置、断错层位与上断点的埋深尚不明确,在临西、临清附近布设了4条浅层地震勘探测线,获得了4条高分辨率的浅层地震勘探剖面,DZ1、DZ2测线探测馆陶西断裂,断层上断点埋深300 m,馆陶西断裂最新活动时代为中更新世;DZ3、DZ4测线探测沧东断裂,断层上断点埋深270 m,沧东断裂的最新活动时代为中更新世。

In order to make clear the location of the eastern boundary fault,the fault dislocation and the buried depth of the upper fault of the Tangshan-Hejian-Cixian seismic tectonic zone,four shallow seismic survey lines were laid near Linxi County and Linqing,and four high-resolution shallow seismic survey profiles were obtained.The Guantaoxi fault is detected by DZ1 and DZ2 line.The buried depth of the fault is 300 m.The latest active age of the Guantaoxi fault is Middle Pleistocene,DZ3 and DZ4 line detected Cangdong fault.The buried depth of the fault is 270 m.The latest active age of Cangdong fault is Middle Pleistocene.