| 甘肃地区S波非弹性衰减Q值研究 |
| |
| 引用本文： | 陈继锋,赵翠萍,杨立明.甘肃地区S波非弹性衰减Q值研究[J].地震,2010,30(1). |
| |
| 作者姓名： | 陈继锋 赵翠萍 杨立明 |
| |
| 作者单位： | 1. 中国地震局兰州地震研究所,甘肃,兰州,730000
2. 中国地震局地震预测研究所,北京,100036 |
| |
| 基金项目： | 中国地震局行业专项(200708026);;中国地震局兰州地震研究所青年基金(2009265)资助 |
| |
| 摘 要： | 文中利用新建"十五"数字化地震观测网络项目记录到的甘肃地区地震波形资料,研究了甘肃地区S波的非弹性衰减Q值,得到甘肃东南地区Q值与频率的关系为Q(f)=374.0f0.3084;祁连山中东段地区Q值与频率的关系为Q(f)=693.6f0.2865。从分区Q值研究结果看,各分区之间存在较大差异,显示出了Q值空间分布的非均匀性特征,这种区域差异性与甘肃地区构造活动、地震活动、地壳速度结构及热活动状态的区域差异性有较好的一致性,活动强烈、高热活动以及低速区为相对低Q值区,地震波衰减较快。
|
| 关 键 词： | 甘肃地区 联合反演 非弹性衰减Q值 SH波 |
Q Values of S Wave Inelastic Attenuation in Gansu Region |
| |
| CHEN Ji-feng,ZHAO Cui-ping,YANG Li-ming.Q Values of S Wave Inelastic Attenuation in Gansu Region[J].Earthquake,2010,30(1). |
| |
| Authors: | CHEN Ji-feng ZHAO Cui-ping YANG Li-ming |
| |
| Institution: | 1.Lanzhou Institute of Seismology;CEA;Lanzhou 730000;China;2.Institute of earthquake science;CSB;Beijing 100036;China |
| |
| Abstract: | By using of wave data from the Lanzhou digital seismic network,quality factor Q values of S wave inelastic attenuation had been studied in Gansu region.It has been obtained that the frequency-dependent inelastic attenuation Q value is Q(f)=374.00.3084 in the southeastern Gansu,and Q(f)=693.6f0.2865 in the middle-east segment of the Qilianshan.The results show that there exists great difference in the subarea Q values,presenting the heterogeneity of Q value space distribution.The Q value is lower in southeas... |
| |
| Keywords: | Gansu region Simultaneous inversion Inelastic attenuation Q value SH-wave |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
