A new method to constrain shallow crustal S-wave velocities based on direct P-wave amplitudes in receiver functions and its application in northeastern Tibet
文献类型：期刊论文
| 作者 | Wang, Xu1,5; Chen, Ling1,5,6; Ling, Yuan1,5; Gao, Yifan1,5; Zhang, Jianyong1,5; Yao, Huajian2,3,4 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2019-11-01 |
| 卷号 | 62期号:11页码:1819-1831 |
| 关键词 | Receiver function Direct P-wave amplitude S-wave velocity structure Shallow crust Northeastern Tibet Sichuan Basin |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-018-9443-6 |
| 英文摘要 | A new method is developed to constrain S-wave velocity structures of the shallow crust based on frequency-dependent amplitudes of direct P-waves in P-wave receiver functions (P-RFs). This method involves the following two steps: first, the high-frequency approximate amplitude formula of direct P-waves in P-RFs of individual stations is used to fit the observed amplitude distribution against the ray parameters at different frequencies, and second, the S-wave velocity depth profile beneath each station is constrained according to an empirical correlation between frequency and depth. Unlike traditional inversion techniques, the newly developed method is not dependent on initial velocity models, and the lateral and vertical resolutions of the results are controlled by the interstation distance and the data frequency, respectively. The effectiveness of the method is verified by synthetic tests on various models. The method is then applied to teleseismic P-RF data from a NW-SE-trending linear seismic array extending from the northeastern Tibetan Plateau to the central Sichuan Basin to construct an S-wave velocity image of the shallow crust along the array. The imaged velocity structure is further analysed and compared with the regional geology. In particular, the structural differences of sedimentary basins in the cratonic area of the stable Sichuan Basin and tectonically active belts in northeastern Tibet are investigated. By combining our results with previous observations, the relationship between the surficial geology and deep processes in the study region is also discussed. |
| WOS关键词 | NEIGHBORHOOD ALGORITHM ; GEOPHYSICAL INVERSION ; BENEATH EASTERN ; LONGMEN SHAN ; PLATEAU ; CHINA ; DEFORMATION ; EVOLUTION ; MIGRATION ; MARGIN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000495242100011 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95745]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Chen, Ling |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Sci & Technol China, Mengcheng Natl Geophys Observ, Mengcheng 233500, Peoples R China 3.Univ Sci & Technol China, Sch Earth & Space Sci, Anhua 230026, Peoples R China 4.Univ Sci & Technol China, Lab Seismol & Phys Earths Interior, Anhua 230026, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xu,Chen, Ling,Ling, Yuan,et al. A new method to constrain shallow crustal S-wave velocities based on direct P-wave amplitudes in receiver functions and its application in northeastern Tibet[J]. SCIENCE CHINA-EARTH SCIENCES,2019,62(11):1819-1831. |
| APA | Wang, Xu,Chen, Ling,Ling, Yuan,Gao, Yifan,Zhang, Jianyong,&Yao, Huajian.(2019).A new method to constrain shallow crustal S-wave velocities based on direct P-wave amplitudes in receiver functions and its application in northeastern Tibet.SCIENCE CHINA-EARTH SCIENCES,62(11),1819-1831. |
| MLA | Wang, Xu,et al."A new method to constrain shallow crustal S-wave velocities based on direct P-wave amplitudes in receiver functions and its application in northeastern Tibet".SCIENCE CHINA-EARTH SCIENCES 62.11(2019):1819-1831. |
入库方式： OAI收割
来源：地质与地球物理研究所
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