Crustal structure beneath the Xisha Islands of the South China Sea simulated by the teleseismic receiver function method
文献类型：期刊论文
| 作者 | Huang Hai-Bo1,4; Qiu Xue-Lin1; Xu Yi2; Zeng Gang-Ping3 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2011-11-01 |
| 卷号 | 54期号:11页码:2788-2798 |
| 关键词 | Xisha Islands Receiver Function Velocity Inversion Crustal Structure Poisson's Ratio Ductile Rheology |
| ISSN号 | 0001-5733 |
| DOI | 10.3969/j.issn.0001-5733.2011.11.009 |
| 文献子类 | Article |
| 英文摘要 | 1-D shear wave velocity models for the crust structure beneath the Xisha Islands of the South China Sea are constructed using the data from a temporary seismic station at Chenhang island (CHH) and a permanent seismic station at Yongxing island (YXN). Receiver functions for each station were obtained from teleseismic records with clear P waveforms and a combination of inversion and forward modeling was used to infer the crustal structure below each station. Modeling results show that a 2 km thick low-velocity layer with shear wave velocity of 2. 0 km/s exists on the top of crust. It is attributed to carbonate sediments in this area. Upper crust is a velocity gradient zone in which the shear wave velocity gradually increases from 3. 4 km/s at the depth of 2 km to 3. 8 km/s at the depth of 12 km. Lower crust is 12 km thick and has a prominent low shear wave velocity of 3. 5 km/s. The Moho lies at the depth of 26 similar to 28 km and also has a velocity gradient zone with shear wave velocity changing from 3. 8 km/s to 4. 6 km/s. The Poisson's ratio shows a higher value greater than 0. 3. We suggest that the low-velocity layer in lower crust and the anomalous Poisson's ratio result from the presence of anisotropy of rocks and minerals which arises from the ductile rheological zone and hot mantle activity in the depth. |
| WOS关键词 | SEISMIC VELOCITY STRUCTURE ; CONTINENTAL-CRUST ; MARGIN ; PHASES ; TROUGH ; FLOW |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000297535900009 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/73792]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Huang Hai-Bo |
| 作者单位 | 1.Chinese Acad Sci, S China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, CAS Key Lab Petr Resource Res, Beijing 100029, Peoples R China 3.Earthquake Adm Hainan Prov, Haikou 570203, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang Hai-Bo,Qiu Xue-Lin,Xu Yi,et al. Crustal structure beneath the Xisha Islands of the South China Sea simulated by the teleseismic receiver function method[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2011,54(11):2788-2798. |
| APA | Huang Hai-Bo,Qiu Xue-Lin,Xu Yi,&Zeng Gang-Ping.(2011).Crustal structure beneath the Xisha Islands of the South China Sea simulated by the teleseismic receiver function method.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,54(11),2788-2798. |
| MLA | Huang Hai-Bo,et al."Crustal structure beneath the Xisha Islands of the South China Sea simulated by the teleseismic receiver function method".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 54.11(2011):2788-2798. |
入库方式： OAI收割
来源：地质与地球物理研究所
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