高分辨率城市活断层地震资料处理技术  

HIGH RESOLUTION SEISMIC DATA PROCESSING TECHNIQUE OF DETECTING ACTIVE FAULT IN CITY

作　　者：高景华[1] 徐明才[1] 刘建勋[1] 荣立新[1] 

机构地区：[1]中国地质科学院地球物理地球化学勘查研究所,河北廊坊065000

出　　处：《物探化探计算技术》2005年第3期209-213,共5页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国土资源部重点科技项目(12130901001)

摘　　要：高分辨率地震方法在城市活断层探测中,已成为一种不可缺少的方法技术。在活断层探测中,地震方法不但能确定断层的产状,而且还能确定断层的上断点。由于大多数地震资料都是在干扰背景较强的情况下取得的,高分辨率城市活断层中,地震资料处理的关键是在不降低地震记录分辨率的前提下,提高地震记录的信噪比。一般来说,提高地震记录的分辨率和信噪比是相互矛盾的。如何解决这一对矛盾,这里结合目前正在开展的城市活断层探测课题,进行了比较深入的研究,并取得了较好的处理效果。High-resolution seismic method is an indispensably method of detecting active fault in city. Attitude of fault and upper fault point can be determined by seismic method. Due to many seismic data are obtained in strong interference background conditions, key of high resolution seismic data processing is to improving the S/N ratio of seismic record under the condition of the seismic record resolution is not decreased. Generally, to improve the resolution and S/N ratio of seismic record is inconsistent. To solve the problem, the in-depth research has been made with task of active fault detection to be making at present and good processing effect have been obtained.

关 键 词：抗干扰地震方法 活断层 反射波 信噪比 分辨率 

分 类 号：P631.425[天文地球—地质矿产勘探]