| Seismic anisotropy evidence for modified lithosphere below the Bohai Sea region, eastern North China Craton | |
| Li, Cuilin1,2,3; Feng, Jikun4,5; Fan, Jianke1,2,3; Dong, Dongdong1,2,3; Dosso, Stan E.6 | |
| 2022-01-20 | |
| 发表期刊 | TECTONOPHYSICS
 |
| ISSN | 0040-1951 |
| 卷号 | 823页码:15 |
| 通讯作者 | Li, Cuilin([email protected]) |
| 摘要 | The Bohai Sea is proposed as the center of deformation associated with destruction of the North China Craton, and its tectonic history is essential for understanding the response of craton evolution to oceanic subduction. However, interior deformation of the craton remains unclear due to a lack of high-resolution imaging in this region. Here, we present high-resolution 3-D azimuthally-anisotropic shear-wave velocity structure of the crust and uppermost mantle using direct inversion of Rayleigh-wave phase-velocity dispersion from ambient noise. The anisotropic velocity structures reveal significant consistency between the regional strain field and seismic activity in the shallow crust. The N-S fast direction and relatively high velocity anomalies observed in the uppermost mantle beneath the Tanlu fault zone, as well as prominent Moho uplift, support the conclusion that the Tanlu fault zone has facilitated lithospheric modification of the eastern North China Craton since late Mesozoic. Anisotropy images also indicate that the northern and southern Bohai Bay Basin have undergone different deformation histories. The strong and consistent azimuthal anisotropy within the uppermost mantle beneath the southern Bohai Bay Basin may originate primarily from re-orientation arrangement of the olivine induced by new lithosphere formed from rapid cooling of upwelling asthenosphere after lithosphere delamination due to the subduction of the (Paleo-) Pacific Plate. |
| 关键词 | Anisotropic ambient noise tomography Lithosphere modification Newly-formed lithosphere Tanlu fault zone North China Craton |
| DOI | 10.1016/j.tecto.2021.229192 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41976052]; National Natural Science Foundation of China[41904048]; National Natural Science Foundation of China[41206042] |
| WOS研究方向 | Geochemistry & Geophysics |
| WOS类目 | Geochemistry & Geophysics |
| WOS记录号 | WOS:000770876700007 |
| 出版者 | ELSEVIER |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/178664 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Li, Cuilin |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 4.Univ Sci & Technol China, Lab Seismol & Phys Earths Interior, Hefei, Peoples R China 5.Univ Sci & Technol China, Sch Earth & Space Sci, Hefei, Peoples R China 6.Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8W 3P6, Canada |
| 第一作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
| 通讯作者单位 | 中国科学院海洋研究所; 中国科学院海洋大科学研究中心 |
| 推荐引用方式 GB/T 7714 | Li, Cuilin,Feng, Jikun,Fan, Jianke,et al. Seismic anisotropy evidence for modified lithosphere below the Bohai Sea region, eastern North China Craton[J]. TECTONOPHYSICS,2022,823:15. |
| APA | Li, Cuilin,Feng, Jikun,Fan, Jianke,Dong, Dongdong,&Dosso, Stan E..(2022).Seismic anisotropy evidence for modified lithosphere below the Bohai Sea region, eastern North China Craton.TECTONOPHYSICS,823,15. |
| MLA | Li, Cuilin,et al."Seismic anisotropy evidence for modified lithosphere below the Bohai Sea region, eastern North China Craton".TECTONOPHYSICS 823(2022):15. |
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| 1-s2.0-S004019512100（23450KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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