Modeling the seismic response of basin-edge structure by a sequential waveform method
文献类型：期刊论文
| 作者 | Zhao, Lian-Feng; Wang, Wei-Min; Li, Juan; Yao, Zhen-Xing |
| 刊名 | TECTONOPHYSICS
 |
| 出版日期 | 2006-07-07 |
| 卷号 | 420期号:3-4页码:493-507 |
| ISSN号 | 0040-1951 |
| 关键词 | P-SV wave response FD method simulated annealing basin-edge structure |
| DOI | 10.1016/j.tecto.2006.04.006 |
| 文献子类 | Article |
| 英文摘要 | A sequential waveform method is developed to simulate the seismic response of basin-edge structure excited by a plane incident P-wave. The full procedure involves: (a) a previous parameterization of the investigated model using the seismic wave velocities and depths of the sedimentary stratifications; (b) an input motion determined from the records at stations installed on hard rock; (c) forward computation of the P-SV elastic wave field by means of a two-dimensional finite difference (FD) method; (d) the optimization of the model vector using simulated annealing technique and comparing the simulated seismic response of the tested structure with the observed wave field; (e) the correction of the initial model by trial-and-error by testing the differences between synthetics and observed data, and (f) the final solution obtained by iteration using the conjugate gradient algorithm. The search of an optimal basin-edge model has been parallel processed by varying the shapes and velocities of strata on the basis of the fitting of relative timing, amplitude and phase between the output and the observed data. The input motion and sensitivity have been checked and the validity of the method has been demonstrated by numeric analysis. Using the teleseismic records generated by 7 earthquakes recorded at 26 broadband seismic stations, we have studied the seismic velocity structure of the southern edge of the Jiyang depression located in the Bohai Bay basin, northern China. Two cross sections show an agreement between the velocity results and the geological sections available in the region. In addition, we obtain evidence of three hidden faults under the sections and features that suggest major extensions at the Paleogene. (c) 2006 Elsevier B.V. All rights reserved. |
| WOS关键词 | STRONG GROUND MOTION ; LOS-ANGELES BASIN ; MEXICO-CITY ; NORTHERN CHINA ; EURO-SEISTEST ; S-WAVES ; P-WAVES ; EARTHQUAKE ; INVERSION ; PROPAGATION |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000238996800009 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66452]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhao, Lian-Feng |
| 作者单位 | CAS, Inst Geol & Geophys, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Lian-Feng,Wang, Wei-Min,Li, Juan,et al. Modeling the seismic response of basin-edge structure by a sequential waveform method[J]. TECTONOPHYSICS,2006,420(3-4):493-507. |
| APA | Zhao, Lian-Feng,Wang, Wei-Min,Li, Juan,&Yao, Zhen-Xing.(2006).Modeling the seismic response of basin-edge structure by a sequential waveform method.TECTONOPHYSICS,420(3-4),493-507. |
| MLA | Zhao, Lian-Feng,et al."Modeling the seismic response of basin-edge structure by a sequential waveform method".TECTONOPHYSICS 420.3-4(2006):493-507. |
入库方式： OAI收割
来源：地质与地球物理研究所
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