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 |
DOI | 10.1029/2018GC007515 |
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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