Ambient Noise Tomography of the Shandong Province and its Implication for Cenozoic Intraplate Volcanism in Eastern China
Kuponiyi, Ayodeji Paul3,4; Li, Cuilin1,6,7; Chen, Chuanxu5; Dong, Dongdong1,6,7; Dosso, Stan E.3; Su, Daolei2
刊名GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
2018-09-01
卷号19期号:9页码:3286-3301
关键词Ambient Noise Tomography Phase Velocity Crust Structure Yishu Fault Zone Intraplate Volcanism
ISSN号1525-2027
DOI10.1029/2018GC007515
通讯作者Li, Cuilin(cuilinli@qdio.ac.cn) ; Chen, Chuanxu(chencx@idsse.ac.cn)
英文摘要

New images of shear wave velocity (V-S) structure of the crust and uppermost mantle in the Shandong province of China are presented based on inversion of ambient seismic noise data from 47 broadband stations. Interstation Rayleigh wave phase-velocity dispersion curves for periods of 1-40 s are obtained from noise cross correlations between stations. Two-dimensional phase-velocity maps at periods of 5-30 s are obtained by tomographic inversion of these dispersion curves, which are then inverted for 3-D Vs heterogeneity to similar to 80-km depth. Our results show clear indications of Moho uplift and crustal thinning beneath the northern segment of the Yishu fault zone and the Jiaobei uplift, thus providing seismological evidence for the steep geometry and deep penetration of the fault system. Instead of large-scale, low-velocity anomalies beneath eastern China as imaged by previous regional tomography, our high-resolution Vs results reveal fine-scale focused low-velocity anomalies beneath the isolated Cenozoic basalts. There are strong spatial correlations between the narrow low Vs zones in the uppermost mantle and the thinned crust, as well as the locations of the isolated Cenozoic volcanism in the study area. Our results suggest that the asthenosphere upwelling possibly originating from the stagnant Pacific slab is focused into localized features at 50- to 80-km depth that supply the isolated Cenozoic volcanoes of the eastern China continental margin.

资助项目Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology[MGQNLM-KF201706] ; National Program on Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; Research Program of Earthquake Administration of Shandong Province[JJ1601] ; National Natural Science Foundation of China[41606055]
WOS关键词Seismic-sounding Profile ; Mantle Transition Zone ; North China ; Crustal Structure ; Stagnant Slab ; Geodynamic Implications ; Jiaodong Peninsula ; Velocity Structure ; Alkaline Basalts ; Oceanic-crust
WOS研究方向Geochemistry & Geophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000448475100025
资助机构Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology ; National Program on Global Change and Air-Sea Interaction ; Research Program of Earthquake Administration of Shandong Province ; National Natural Science Foundation of China
内容类型期刊论文
版本出版稿
源URL[http://ir.idsse.ac.cn/handle/183446/6306]  
专题深海科学研究部_深海地球物理与资源研究室
通讯作者Li, Cuilin; Chen, Chuanxu
作者单位1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China
2.Earthquake Adm Jinan City, Jinan, Shandong, Peoples R China
3.Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada
4.Geol Survey Canada, Pacific Geosci Ctr, Sidney, BC, Canada
5.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya, Peoples R China
6.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao, Peoples R China
7.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao, Peoples R China
推荐引用方式
GB/T 7714
Kuponiyi, Ayodeji Paul,Li, Cuilin,Chen, Chuanxu,et al. Ambient Noise Tomography of the Shandong Province and its Implication for Cenozoic Intraplate Volcanism in Eastern China[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2018,19(9):3286-3301.
APA Kuponiyi, Ayodeji Paul,Li, Cuilin,Chen, Chuanxu,Dong, Dongdong,Dosso, Stan E.,&Su, Daolei.(2018).Ambient Noise Tomography of the Shandong Province and its Implication for Cenozoic Intraplate Volcanism in Eastern China.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,19(9),3286-3301.
MLA Kuponiyi, Ayodeji Paul,et al."Ambient Noise Tomography of the Shandong Province and its Implication for Cenozoic Intraplate Volcanism in Eastern China".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 19.9(2018):3286-3301.
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