Mantle flow underneath the South China Sea revealed by seismic anisotropy
Kong, Fansheng1,2,5; Gao, Rui1; Gao, Stephen S.2; Liu, Kelly H.2; Ding, Weiwei1,5; Niu, Xiongwei1,5; Ruan, Aiguo1,5; Tan, Pingchuan1,5; Fan, Jianke4; Lu, Shaoping1,3
刊名NATIONAL SCIENCE REVIEW
2023-06-16
页码8
关键词mantle flow South China Sea Tibetan Plateau seismic anisotropy shear wave splitting
ISSN号2095-5138
DOI10.1093/nsr/nwad176
通讯作者Kong, Fansheng(kongfs@sio.org.cn) ; Li, Jiabiao(jbli@sio.org.cn)
英文摘要New geophysical measurements, obtained from ocean-bottom seismometers, suggest that the continental collision occurring along the Himalayas exerts a significant influence on the mantle flow field beneath the South China Sea. It has long been established that plastic flow in the asthenosphere interacts constantly with the overlying lithosphere and plays a pivotal role in controlling the occurrence of geohazards such as earthquakes and volcanic eruptions. Unfortunately, accurately characterizing the direction and lateral extents of the mantle flow field is notoriously difficult, especially in oceanic areas where deployment of ocean bottom seismometers (OBSs) is expensive and thus rare. In this study, by applying shear wave splitting analyses to a dataset recorded by an OBS array that we deployed between mid-2019 and mid-2020 in the South China Sea (SCS), we show that the dominant mantle flow field has a NNW-SSE orientation, which can be attributed to mantle flow extruded from the Tibetan Plateau by the ongoing Indian-Eurasian collision. In addition, the results suggest that E-W oriented flow fields observed in South China and the Indochina Peninsula do not extend to the central SCS.
WOS关键词AZIMUTHAL ANISOTROPY ; TIBETAN PLATEAU ; BENEATH ; DEFORMATION ; MELT ; SUBDUCTION ; TECTONICS ; INSIGHTS ; ASIA
WOS研究方向Science & Technology - Other Topics
语种英语
出版者OXFORD UNIV PRESS
WOS记录号WOS:001050628700001
内容类型期刊论文
源URL[http://ir.qdio.ac.cn/handle/337002/182756]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Kong, Fansheng; Li, Jiabiao
作者单位1.Southern Marine Sci & Engn Guangdong Lab, Zhuhai 519082, Peoples R China
2.Missouri Univ Sci & Technol, Dept Geosci & Geol & Petr Engn, Geol & Geophys Program, Rolla, MO 65409 USA
3.Sun Yat sen Univ, Sch Earth Sci & Engn, Zhuhai 519082, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
5.Second Inst Oceanog, Key Lab Submarine Geosci, Hangzhou 310012, Peoples R China
推荐引用方式
GB/T 7714
Kong, Fansheng,Gao, Rui,Gao, Stephen S.,et al. Mantle flow underneath the South China Sea revealed by seismic anisotropy[J]. NATIONAL SCIENCE REVIEW,2023:8.
APA Kong, Fansheng.,Gao, Rui.,Gao, Stephen S..,Liu, Kelly H..,Ding, Weiwei.,...&Li, Jiabiao.(2023).Mantle flow underneath the South China Sea revealed by seismic anisotropy.NATIONAL SCIENCE REVIEW,8.
MLA Kong, Fansheng,et al."Mantle flow underneath the South China Sea revealed by seismic anisotropy".NATIONAL SCIENCE REVIEW (2023):8.
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