| 用远震接收函数研究龙门山断裂带与其邻区的莫霍面深度及波速比分布 |
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| 引用本文： | 龙锋,倪四道,闻学泽. 用远震接收函数研究龙门山断裂带与其邻区的莫霍面深度及波速比分布[J]. 地球学报, 2011, 32(4): 438-446. DOI: 10.3975/cagsb.2011.04.07 |
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| 作者姓名： | 龙锋 倪四道 闻学泽 |
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| 作者单位： | 中国科学技术大学地球和空间科学学院; 四川省地震局;中国科学技术大学地球和空间科学学院; 中国科学院测量与地球物理研究所, 大地测量与地球动力学国家重点实验室;四川省地震局; 中国地震局地震预测研究所 |
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| 基金项目： | 地震动力学国家重点实验室开放课题(编号: LED2008B01); 中国地震局M7工作专项 |
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| 摘 要： | 利用龙门山断裂带及其邻近地区地震台站的远震波形记录,采用时间域迭代反褶积技术求取接收函数,并用H-Kappa叠加方法计算出各台站下方的莫霍面深度和波速比及其相应的误差.结果除了获得与前人研究大体相同的莫霍面深度分布轮廓外,还获得一些新的细节与认识:(1)莫霍面深度在四川盆地内为41～48 km,在四川盆地西缘存在一个N...
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| 关 键 词： | 龙门山断裂带 接收函数 H-Kappa叠加方法 莫霍面深度 波速比 |
Variations of Moho Depth and Velocity Ratio along and surrounding the Longmenshan Fault Zone from Tele-seismic Receiver Functions |
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| LONG Feng,NI Si-dao and WEN Xue-ze. Variations of Moho Depth and Velocity Ratio along and surrounding the Longmenshan Fault Zone from Tele-seismic Receiver Functions[J]. Acta Geoscientica Sinica, 2011, 32(4): 438-446. DOI: 10.3975/cagsb.2011.04.07 |
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| Authors: | LONG Feng NI Si-dao WEN Xue-ze |
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| Affiliation: | School of Earth and Space, University of Science and Technology of China; Earthquake Administration of Sichuan Province;School of Earth and Space, University of Science and Technology of China; State Key Laboratory of Dynamic Geodesy, Institute of Geodesy and Geophysics, Chinese Academy of Sciences;Earthquake Administration of Sichuan Province; Institute of Earthquake Science, China Earthquake Administration |
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| Abstract: | Using tele-seismograms from stations in the region along and surrounding the Longmenshan fault zone,the authors stacked receiver functions by means of time-domain iterative deconvolution,further estimated Moho depths beneath the stations through the H-Kappa stacking method,and finally derived the distribution of both the Moho depth and the wave-to-velocity ratio(Vp/Vs),and their errors for the region.The result suggests that the Moho depth distribution has an outline similar to that from previous studies.So... |
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| Keywords: | Longmenshan fault zone receiver function H-Kappa stacking method Moho depth wave-velocity ratio |
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