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  4. 中国科学院地球与行星物理重点实验室
High-resolution Rayleigh-wave phase velocity structure beneath the Changbaishan volcanic field associated with its magmatic system

文献类型：期刊论文

作者Fan XingLi1,3,4,5; Chen QiFu3,4,5; Guo Zhen1,2
刊名ACTA PETROLOGICA SINICA
出版日期2020
卷号36期号:7页码:2081-2091
关键词Changbaishan volcano Crustal magma chamber Upwelling asthenosphere Ambient noise tomography
ISSN号1000-0569
DOI10.18654/1000-0569/2020.07.10
英文摘要Recently, a growing concern over the instability of the potentially hazardous Changbaishan volcano has drawn a lot of public attention from the geoscientific community. However, the crust and upper mantle structure related to the magmatic system underlying this volcano has not been well constrained. Previous research findings regarding the depth extent, spatial distribution and the degree of partial melting of the crustal magma chamber still remain hotly debated. In this study, we construct a high-resolution Rayleigh-wave phase velocity model via ambient noise tomography in the Changbaishan volcanic field based on the seismic data (including those from the North Korean side) recorded by several densely distributed portable networks and local permanent stations. Our model reveals that prominent middle-lower crustal low-velocity anomaly is evident beneath the Changbaishan volcano, suggesting possible existence of a crustal magma chamber. The localized low-velocity anomaly in the upper crust may reflect a magma channel sourced by the deep magma chamber or local small-scale magma bodies. The upper mantle low-velocity zone is representative of upwelling asthenosphere, which may feed the crustal magma chamber through decompression melting.
WOS关键词MANTLE TRANSITION ZONE ; AMBIENT NOISE ; SURFACE-WAVE ; NORTH-KOREA ; NE CHINA ; INTRAPLATE VOLCANISM ; MILLENNIUM ERUPTION ; SEISMIC CONSTRAINTS ; CHINA/NORTH KOREA ; CRUSTAL STRUCTURE
WOS研究方向Geology
语种英语
WOS记录号WOS:000596477200010
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/99878]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Chen QiFu
作者单位1.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Innovat Acad Earth Sci, Chinese Acad Sci, Beijing 100029, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Fan XingLi,Chen QiFu,Guo Zhen. High-resolution Rayleigh-wave phase velocity structure beneath the Changbaishan volcanic field associated with its magmatic system[J]. ACTA PETROLOGICA SINICA,2020,36(7):2081-2091.
APA Fan XingLi,Chen QiFu,&Guo Zhen.(2020).High-resolution Rayleigh-wave phase velocity structure beneath the Changbaishan volcanic field associated with its magmatic system.ACTA PETROLOGICA SINICA,36(7),2081-2091.
MLA Fan XingLi,et al."High-resolution Rayleigh-wave phase velocity structure beneath the Changbaishan volcanic field associated with its magmatic system".ACTA PETROLOGICA SINICA 36.7(2020):2081-2091.

入库方式： OAI收割

来源：地质与地球物理研究所

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