Traveltime tomography using teleseismic P wave in the northeastern Tibetan plateau
文献类型：期刊论文
| 作者 | Dong XingPeng1,2; Teng JiWe1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2018-05-01 |
| 卷号 | 61期号:5页码:2066-2074 |
| 关键词 | Northeastern Tibetan Plateau FMTT Tomography P wave velocity |
| ISSN号 | 0001-5733 |
| DOI | 10.6038/cjg2018K0214 |
| 文献子类 | Article |
| 英文摘要 | In this paper, the teleseismic waveforms recorded by permanent networks in northeastern Tibetan plateau from Apr. 2010 to Mar. 2015 are used for P wave tomography. We picked 10697 P wave relative traveltime residuals by Multi-Channel Cross-Correlation method and then we get the P wave velocity structure of upper mantle beneath NE Tibet by Fast Marching Teleseismic Tomography (FMTT). The results reveal that a high velocity anomaly extends to 70 km depth beneath the Qinling-Qilian Block. The result shows that the lower crustal channel flow model is not suitable for the whole NE Tibet; an obvious low-velocity is located at the region beneath Qilian Orogen from crust down to 400km, which suggests that there may exist a hot flow channel in the upper mantle and the crust. A large area in Songpan-Garze block is low velocity anomaly and this is consistent with low density Tibetan plateau. The velocity of Ordos block is high, and it is consistent with high density Ordos block. |
| WOS关键词 | MANTLE BENEATH TIBET ; CRUSTAL STRUCTURE ; WENCHUAN EARTHQUAKE ; VELOCITY STRUCTURE ; ARRIVAL TIMES ; CHANNEL FLOW ; MODEL ; SUBDUCTION ; DYNAMICS ; SCHEME |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000432644000032 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/88247]  |
| 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 | Teng JiWe |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong XingPeng,Teng JiWe. Traveltime tomography using teleseismic P wave in the northeastern Tibetan plateau[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(5):2066-2074. |
| APA | Dong XingPeng,&Teng JiWe.(2018).Traveltime tomography using teleseismic P wave in the northeastern Tibetan plateau.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(5),2066-2074. |
| MLA | Dong XingPeng,et al."Traveltime tomography using teleseismic P wave in the northeastern Tibetan plateau".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.5(2018):2066-2074. |
入库方式： OAI收割
来源：地质与地球物理研究所
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