渤海地区瑞利面波衰减系数的离散反演方法  

Discrete Inversion on the Seismic Rayleigh Wave's Attenuation Coefficients in the Bohai Region

作　　者：傅淑芳[1] 杨冬梅[1] 

机构地区：[1]北京大学地球物理系,100871

出　　处：《CT理论与应用研究（中英文）》1992年第1期16-21,共6页Computerized Tomography Theory and Applications

基　　金：地震科学联合基金会赞助项目

摘　　要：本文利用巳知震源参数的79条瑞利面波路径资料,采用单台分块方法,计算了渤海地区(117°-123°E, 37°-41°N)横向不均匀的瑞利面波衰减系数γ(ω),得出该区是一个面波高衰减区,横向变化显著.这与当地断层纵横交错的复杂地质条件相符合.Raylcigh wavc's regional attenuation coefficients in the Bohai Region are calculated by using 56 earthquakes with known epicenter parameters. Seventy-nine Rayleigh wave′s single station data are used. The result reveals that the Bohai Region is a high attenuation area with great transverse changes. This fits well with the complex geological structure of that area where there are considerable number of crisscross faults.

关 键 词：面波 反演方法 瑞利 地震波传播 震源参数 几何扩散 地质条件 相速度 衰减系数 完全弹性 

分 类 号：P315[天文地球—地震学]