区域震相强度比──岩石层热状态的有效指示  

The Amplitude Ratio of Regional Seismic Phases:An Efficient Indicator of the Thermal State of the Lithosphere

作　　者：高世玉[1] 张廉强[1] 唐天明[1] 付昌洪 

机构地区：[1]国家地震局地球物理研究所

出　　处：《中国地震》1995年第3期204-211,共8页Earthquake Research in China

基　　金：地震科学联合基金

摘　　要：本文根据白家疃台６０年代以来的短周期地震记录图，分析了区域震相的强度比。研究表明：Ｓｎ／Ｌｇ波的强度比与波传播路径上岩石层热结构、热状态及强地震活动等均有相关性，并就这种相关性对于强地震成因及其预测研究的直接意义进行了讨论。By analyzing seismograms of short period records of the Beijing Seismological Observatory the present paper investigates the amplitude ratio of regional seismic phases. The results indicate that the amplitude ratio of Sn/Lg is correlated with the lithospheric structure, thermal state and strong earthquake occurrence in the region where the seismic rays pass through. The significance of such correlation in the study of strong earthquake genesis and their prediction is discussed.

关 键 词：区域震相 强度比 岩石层 热状态 有效指示 

分 类 号：P315.2[天文地球—地震学]