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New Insights Into Potassic Intraplate Volcanism in Northeast China From Joint Tomography of Ambient Noise and Teleseismic Surface Waves

文献类型：期刊论文

作者Chen, Ying6,7; Ai, Yinshuang1,2,6; Jiang, Mingming1,2,6; Yang, Yingjie3,4; Lei, Jianshe5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2021-08-01
卷号126期号:8页码:17
关键词3-D S-wave velocity model Potassic Intraplate Volcanism Northeast China Ambient noise tomography Two-plane surface wave tomography
ISSN号2169-9313
DOI10.1029/2021JB021856
英文摘要Wudalianchi volcano is one of the youngest volcanic groups among the Cenozoic intraplate volcanoes in Northeast China and is notable for its potassium-rich basalts. With newly deployed dense broadband seismic stations, we construct a high-resolution 3-D S-wave velocity model of Wudalianchi volcano and its adjacent region, including the Keluo and Erkeshan volcanoes, using ambient noise and teleseismic surface wave tomography. We find a prominent channel-like low-velocity body that extends from the Moho to a depth of 100 km directly beneath the Wudalianchi, Erkeshan, and Keluo (WEK) volcanoes. This low-velocity anomaly suggests that these three volcanoes may be derived from the same mantle magmatic source. Our model also shows that the prominent low-velocity anomaly is associated with the pervasive low-velocity anomalies at a depth of 100-200 km, which is interpreted as the asthenosphere. We further find that the lithosphere beneath the WEK volcanoes thickens abruptly from similar to 80 to similar to 110 km. Combining our results with those of other geophysical studies, we propose a geodynamic scenario for WEK intraplate volcanism. When the background asthenospheric flow in Northeast China encounters sharp changes in lithosphere thickness beneath the WEK volcanoes, it produces locally turbulent flow, promotes asthenospheric upwelling, and finally forms volcanoes.
WOS关键词MANTLE TRANSITION ZONE ; BENEATH NE CHINA ; LITHOSPHERIC STRUCTURE ; ISOTOPIC COMPOSITIONS ; RECEIVER FUNCTIONS ; TECTONIC CONTROLS ; SEISMIC EVIDENCE ; MAGMATIC SYSTEM ; SONGLIAO BASIN ; EAST-ASIA
资助项目National Natural Science Foundation of China[41474040] ; National Natural Science Foundation of China[41530212] ; National Natural Science Foundation of China[42004033]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000691015100003
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/102629]  
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Ai, Yinshuang; Jiang, Mingming
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Macquarie Univ, ARC Ctr Excellence Core Crust Fluid Syst CCFS, Sydney, NSW, Australia
4.Macquarie Univ, GEMOC ARC Natl Key Ctr Earth & Planetary Sci, Sydney, NSW, Australia
5.Minist Emergency Management China, Natl Inst Nat Hazards, Key Lab Crustal Dynam, Beijing, Peoples R China
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
7.Guangdong Earthquake Agcy, Guangzhou, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Ying,Ai, Yinshuang,Jiang, Mingming,et al. New Insights Into Potassic Intraplate Volcanism in Northeast China From Joint Tomography of Ambient Noise and Teleseismic Surface Waves[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2021,126(8):17.
APA Chen, Ying,Ai, Yinshuang,Jiang, Mingming,Yang, Yingjie,&Lei, Jianshe.(2021).New Insights Into Potassic Intraplate Volcanism in Northeast China From Joint Tomography of Ambient Noise and Teleseismic Surface Waves.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,126(8),17.
MLA Chen, Ying,et al."New Insights Into Potassic Intraplate Volcanism in Northeast China From Joint Tomography of Ambient Noise and Teleseismic Surface Waves".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 126.8(2021):17.

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来源：地质与地球物理研究所

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