| 天祝-古浪地区双差地震层析成像与古浪地震构造探讨 |
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| 引用本文： | 李海鸥,徐锡伟,马文涛.天祝-古浪地区双差地震层析成像与古浪地震构造探讨[J].地震学报,2011,33(2):156-164. |
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| 作者姓名： | 李海鸥 徐锡伟 马文涛 |
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| 作者单位： | （中国北京 100029 中国地震局地质研究所） |
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| 基金项目： | 中国地震局地质研究所基本科研业务专项，科技支撑汁划项目 |
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| 摘 要： | 利用观测走时、走时残差和波形互相关方法获得走时残差,采用双差地震层析方法对1996年6月1日天祝5.2级地震后布设的微震台网资料进行处理,获得了台网下方上地壳三维速度结构的基本特征和地震绝对位置的空间展布特征,并由此勾画出区域活动断裂在深部的延伸情况.地震层析结果表明,研究区上地壳速度结构在纵向和横向上具有明显的非均匀...
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| 关 键 词： | 双差地震层析 地震定位 海原断裂 古浪断裂 天祝盆地 |
Double-difference tomography in Tianzhu-Gulang region and discussion on seismotectonics of 1927 Gulang M8.0 earthquake |
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| Li Haiou,Xu Xiwei,Ma Wentao.Double-difference tomography in Tianzhu-Gulang region and discussion on seismotectonics of 1927 Gulang M8.0 earthquake[J].Acta Seismologica Sinica,2011,33(2):156-164. |
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| Authors: | Li Haiou Xu Xiwei Ma Wentao |
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| Institution: | （Institute of Geology, China Earthquake Administration， Beijing 100029, China）business week launch a career 2008 multiphasic personality test health and safe |
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| Abstract: | Double-difference seismic tomography method,which makes use of both absolute and relative arrival times of seismic phases,is adopted to image the velocity structure beneath seismic stations and relocate aftershocks of the 1 Jun 1996 Tianzhu MW5.2 earthquake recorded by a surveillance network of 6 digital seismic stations.Depth extent of active faults is deduced from the velocity structure and relocated earthquakes.The imaged velocity distribution shows that in upper crust there are obvious heterogeneity bot... |
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| Keywords: | Double-difference tomography earthquake relocation Haiyuan fault Gulang fault Tianzhu basin |
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