气候变化领域集成服务门户(CCPortal): New Uppermost Mantle Pn Velocity and Anisotropy Model of the Eastern Caribbean

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DOI	10.1029/2020JB021523
	New Uppermost Mantle Pn Velocity and Anisotropy Model of the Eastern Caribbean
	Yan L.ü.; Liu J.; He Y.; Guan Y.
发表日期	2021
ISSN	21699313
卷号	126 期号:3
英文摘要	Using the Pn tomography method and new ISC-EHB data, we obtained a new Pn velocity and anisotropy model of the uppermost mantle in eastern Caribbean. The consistency between the Pn fast directions and SKS splitting fast wave directions indicates that the anisotropic structure of the uppermost mantle in the area of the collisional plate boundary is the main cause of shear-wave splitting. The results show that the seismic velocity of uppermost mantle beneath the Aves Ridge is not anomalous, implying that this area is no longer affected by the upwelling of mantle material. We observe high Pn velocities in the uppermost mantle beneath eastern Caribbean Sea, which are higher than in the deeper parts (100–200 km in depth) of the upper mantle; comparing these results with similar findings in the Japan Sea at the northwestern Pacific subduction zone, we believe the uppermost mantle beneath the back-arc region is not or little affected by hot material from the deeper mantle. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	anisotropy; Caribbean; Pn; uppermost mantle; velocity
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187294
作者单位	Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing, China; Mohe Observatory of Geophysics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Yan L.ü.,Liu J.,He Y.,et al. New Uppermost Mantle Pn Velocity and Anisotropy Model of the Eastern Caribbean[J],2021,126(3).
APA	Yan L.ü.,Liu J.,He Y.,&Guan Y..(2021).New Uppermost Mantle Pn Velocity and Anisotropy Model of the Eastern Caribbean.Journal of Geophysical Research: Solid Earth,126(3).
MLA	Yan L.ü.,et al."New Uppermost Mantle Pn Velocity and Anisotropy Model of the Eastern Caribbean".Journal of Geophysical Research: Solid Earth 126.3(2021).