中国地震研究(英文版)2008,Vol.22Issue(3):304-316,13.
Application of Acoustic Technique to Surveying a Buried Fault in Tianjin
Application of Acoustic Technique to Surveying a Buried Fault in Tianjin
摘要
Abstract
We carried out surveying on the shallow structure and faulted-stratum of the Haihe fault in Tianjin using acoustic surveying methods such as the single-channel seismic technique. The result shows that the method can obtain satisfactory results in wide and deep river courses. It also shows that in the Tanggu area of Tianjin, the upper fault point of Haihe fault is about 30m beneath the river bed and the corresponding latest active period is Q3p~Q1h, which is consistent with the former borehole survey result. In the offshore area of the Bohai Sea, Haihe fault shows as a NWW-NEE strike dense fault zone and its upper fault point is less than 30m beneath the seabed. It shows that the active characteristics of Haihe fault in the Bohai Sea correspond to the Tanggu area.关键词
Acoustic exploration/Seismic reflection wave groups/Marine strata/Haihe faultKey words
Acoustic exploration/Seismic reflection wave groups/Marine strata/Haihe fault分类
天文与地球科学引用本文复制引用
Chen Yukun,Zheng Yanpeng,Gao Wuping,Wang Zhisheng..Application of Acoustic Technique to Surveying a Buried Fault in Tianjin[J].中国地震研究(英文版),2008,22(3):304-316,13.基金项目
This project was sponsored by the China Digital Seismic Observation Network Program andthe Active Fault Detecting Sub-program of the tenth "Five-Year Plan" of China Earthquake Administration. ()