摘要
短周期远震P波在壳内激发的PS波的椭圆偏振特征显示了PS波的分裂。本文用各向异性合成地震图讨论穿透裂隙层PS波的分裂特征。结果表明,不同型态的裂隙介质可以引起观测到的PS波各种动力学特征的变化。PS波对深部裂隙型态反映敏感。
The splitting of PS phases is shown by elliptic characteristics of the waves converted from tele-seismic short period P waves in crust. In this paper, the splitting characteristics of PS waves propagating through crack layers are discussed by synthetic seismograms. The conclusion is that all kinds of change of the dynamic characteristics of PS phases observed could be aroused by different cracked solids. PS waves are diagnostic to the status of cracks in depth.
出处
《中国地震》
CSCD
北大核心
1989年第1期38-47,共10页
Earthquake Research in China
基金
地震科学基金
