物探与化探Issue(3):504-509,6.DOI:10.11720/wtyht.2014.3.16
三分量地震散射波成像在天津蓟县城市活断层探测中的应用
The application of three-component scattering wave seismic imaging in detecting city active fault in Ji district,Tianjin city
摘要
Abstract
Three-component ( 3C) seismic technology to fine solve the near-surface geological problems has obvious advantages. Based on the point scattering seismic-geological model, we deduced multi-component scattering wave time-distance equation. On the basis of establishing the multi-component scattering wave imaging principle, we processed the 3C seismic data for the detecting city active fault in Jixian of Tianjin. Imaging results show that the wave group characteristics of the bedrock surface are obvious, insider structural fea-tures are rich, and minor faults near the bedrock surface are more development. Through this study, the contact relationship between the bedrock and Quaternary soil in the region is basic cleared, and the piedmont fault conditions and the geological structure of bedrock near the surface have been clear surveyed.关键词
活断层/三分量地震/PP波/PS转换波/散射波成像Key words
Active fault/3C seismic/PP wave/PS converted wave/Scattering wave imaging分类
天文与地球科学引用本文复制引用
张保卫,沈鸿雁..三分量地震散射波成像在天津蓟县城市活断层探测中的应用[J].物探与化探,2014,(3):504-509,6.基金项目
国土资源部公益性行业科研专项(201111018);中国地质科学院物化探研究所基本科研业务费专项(AS2009J01);陕西省教育厅重点实验室科研计划项目 ()