S-wave velocity images of the Dead Sea Basin provided by ambient seismic noise
文献类型：期刊论文
| 作者 | Badal, Jose1; Chen, Yun2; Chourak, Mimoun3; Stankiewicz, Jacek4 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2013-10-05 |
| 卷号 | 75页码:26-35 |
| 关键词 | Ambient seismic noise Correlation Dispersion Tomography Depth-dependent shear velocity models Dead Sea |
| DOI | 10.1016/j.jseaes.2013.06.017 |
| 文献子类 | Article |
| 英文摘要 | Based on passive seismic interferometry applied to ambient seismic noise recordings between station pairs belonging to a small-scale array, we have obtained shear wave velocity images of the uppermost materials that make up the Dead Sea Basin. We extracted empirical Green's functions from cross-correlations of long-term recordings of continuous data, and measured inter-station Rayleigh wave group velocities from the daily correlation functions for positive and negative correlation time lags in the 0.1-0.5 Hz bandwidth. A tomographic inversion of the travel times estimated for each frequency is performed, allowing the laterally varying 3-D surface wave velocity structure below the array to be retrieved. Subsequently, the velocity-frequency curves are inverted to obtain S-wave velocity images of the study area as horizontal depth sections and longitude- and latitude-depth sections. The results, which are consistent with other previous ones, provide clear images of the local seismic velocity structure of the basin. Low shear velocities are dominant at shallow depths above 3.5 km, but even so a spit of land with a depth that does not exceed 4 km is identified as a salt diapir separating the low velocities associated with sedimentary infill on both sides of the Lisan Peninsula. The lack of low speeds at the sampling depth of 11.5 km implies that there are no sediments and therefore that the basement is near 10-11 km depth, but gradually decreasing from south to north. The results also highlight the bowl-shaped basin with poorly consolidated sedimentary materials accumulated in the central part of the basin. The structure of the western margin of the basin evidences a certain asymmetry both whether it is compared to the eastern margin and it is observed in north-south direction. Infill materials down to similar to 8 km depth are observed in the hollow of the basin, unlike what happens in the north and south where they are spread beyond the western Dead Sea shore. (C) 2013 Elsevier Ltd. All rights reserved. |
| WOS关键词 | CRUSTAL STRUCTURE ; GREENS-FUNCTION ; PULL-APART ; MANTLE STRUCTURE ; DIFFUSE FIELDS ; TOMOGRAPHY ; RIFT ; EMERGENCE ; PHASE ; TRANSFORM |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000324961400004 |
| 资助机构 | National Natural Science Foundation of China(41074057 ; National Natural Science Foundation of China(41074057 ; 41021063) ; 41021063) ; National Natural Science Foundation of China(41074057 ; National Natural Science Foundation of China(41074057 ; 41021063) ; 41021063) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62526]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 作者单位 | 1.Univ Zaragoza, E-50009 Zaragoza, Spain 2.Chinese Acad Sci, State Key Lab Lithospher Evolut, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Mohammed Premier, Dept Geol, Fac Pluridisciplinaire Nador, Nador 62700, Morocco 4.Deutsch GeoForschungsZentrum GFZ, D-14473 Potsdam, Germany |
| 推荐引用方式 GB/T 7714 | Badal, Jose,Chen, Yun,Chourak, Mimoun,et al. S-wave velocity images of the Dead Sea Basin provided by ambient seismic noise[J]. JOURNAL OF ASIAN EARTH SCIENCES,2013,75:26-35. |
| APA | Badal, Jose,Chen, Yun,Chourak, Mimoun,&Stankiewicz, Jacek.(2013).S-wave velocity images of the Dead Sea Basin provided by ambient seismic noise.JOURNAL OF ASIAN EARTH SCIENCES,75,26-35. |
| MLA | Badal, Jose,et al."S-wave velocity images of the Dead Sea Basin provided by ambient seismic noise".JOURNAL OF ASIAN EARTH SCIENCES 75(2013):26-35. |
入库方式： OAI收割
来源：地质与地球物理研究所
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