摘要
通过收集辽宁省地震局数字地震台网34个地震台站记录的2008-2009年的60个震中距为30°～90°之间,震级＞6,信噪比较高的远震记录数据,采用频率域反褶积方法计算获得各台站的远震P波接收函数,并用H-Kap-pa叠加方法对获得的接收函数进行叠加处理获得各台站下方的地壳厚度以及泊松比.通过研究表明,辽宁地区的地壳泊松比在0.24～0.29之间,地壳厚度介于30～36 km之间.
Based on high SNR teleseismic waveform data of 60 M〉 6 earthquake events with epicentral distance between 30°～90° recorded by 34 seismic stations in digital seismic network of earthquake administration of Liaoning province,this paper calculates the teleseismic P-wave receiver function of each seismic stations using the frequency deconvolution method,and obtains the crustal thickness and Poisson ratio under each station by stacking the receiver function using H-Kappa stacking method.The result shows that the Poisson ration of Liaoning area is between 0.24～0.29,and the crustal thickness is between 30 km～36 km.
出处
《华北地震科学》
2013年第3期1-7,共7页
North China Earthquake Sciences
基金
辽宁省地震局重点实验室项目(LZD1105)
自然科学基金项目(41174086)
关键词
地壳结构
地壳厚度
泊松比
crustal structure
crustal thickness
Poisson ratio
