气候变化领域集成服务门户(CCPortal): Intraplate Volcanism and Regional Geodynamics in NE Asia Revealed by Anisotropic Rayleigh-Wave Tomography

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DOI	10.1029/2019GL085623
	Intraplate Volcanism and Regional Geodynamics in NE Asia Revealed by Anisotropic Rayleigh-Wave Tomography
	Fan X.; Chen Q.-F.; Legendre C.P.; Guo Z.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:1
英文摘要	Seismic structure related to the magmatic system beneath the potentially hazardous Changbaishan volcano recently becomes hotly debated. In addition, mantle flow dynamics throughout the back-arc regions in NE Asia remain poorly constrained due to the lack of seismic data in the Korean Peninsula and surrounding ocean regions. In this study we construct a high-resolution azimuthally anisotropic Rayleigh-wave phase velocity model in NE Asia, by integrating seismic data from China, North Korea, South Korea, and Japan. The resulting isotropic velocity maps suggest possible existence of a crustal magma chamber beneath the Changbaishan volcano and that the widespread intraplate volcanism in NE Asia likely arises from the upwelling asthenosphere. The obtained anisotropic maps reveal trench-normal return flow patterns in the back-arc regions of NE Asia with local variations between East China and northeast China as controlled by the subduction geometry of the Pacific slab. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Geophysical prospecting; Rayleigh waves; Seismic response; Seismic waves; Tomography; Volcanoes; High resolution; Intraplate volcanism; Local variations; Magmatic systems; Mantle flow; Rayleigh wave tomography; Rayleigh-wave phase velocity; Seismic structure; Anisotropy; anisotropy; asthenosphere; backarc basin; geodynamics; geometry; intraplate process; magma chamber; magmatism; mantle; Rayleigh wave; seismic survey; slab; subduction; tomography; volcanism; Asia; Baekdu Mountain; Changbai Mountains; China; Japan; North Korea; South Korea
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/170843
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; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Department of Ocean Science and Engineering, Southern University of Science and Technology, Shenzhen, China; Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan
推荐引用方式 GB/T 7714	Fan X.,Chen Q.-F.,Legendre C.P.,et al. Intraplate Volcanism and Regional Geodynamics in NE Asia Revealed by Anisotropic Rayleigh-Wave Tomography[J],2020,47(1).
APA	Fan X.,Chen Q.-F.,Legendre C.P.,&Guo Z..(2020).Intraplate Volcanism and Regional Geodynamics in NE Asia Revealed by Anisotropic Rayleigh-Wave Tomography.Geophysical Research Letters,47(1).
MLA	Fan X.,et al."Intraplate Volcanism and Regional Geodynamics in NE Asia Revealed by Anisotropic Rayleigh-Wave Tomography".Geophysical Research Letters 47.1(2020).