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Crustal stretching style variations in the northern margin of the South China Sea
Bai, Yongliang1,2; Dong, Dongdong3; Brune, Sascha4,5; Wu, Shiguo6; Wang, Zhenjie1,2
2019-01-20
Source PublicationTECTONOPHYSICS
ISSN0040-1951
Volume751Issue:1Pages:1-12
Abstract

Linking deep seismic profiles with regional-scale gravity inversion is a powerful tool to deduce the architecture of rifted margins and their structural evolution. Here we map upper and lower crustal thicknesses of the northern South China Sea (SCS) margin in order to investigate the occurrence of depth-dependent crustal extension from the proximal to the distal margin. By comparing upper and lower crustal stretching factors, we find that the northern margin of the SCS is segmented in three parts: (1) sedimentary basins where upper crust is stretched more than lower crust, (2) distal margin where lower crust is stretched more than upper crust, (3) mostly proximal margin regions where the two layers have similar stretching factors. Our results suggest that sedimentary basins and distal margin prominently feature depth-dependent extension, however accommodated by different processes. While differential thinning within sedimentary basins appears to be governed by lateral pressure variations inducing lower crustal flow, we suggest the distal margin to be affected by a combination of mantle flow-induced lower crustal shearing and sequential fault activity during crustal hyper-extension.

KeywordCrustal Stretching Style Lower Crustal Flow The norThern Margin Of The South China Sea Gravity Inversion Sediment Load Divergent Mantle Flow
DOI10.1016/j.tecto.2018.12.012
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities China ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences ; Helmholtz Association
Language英语
Funding ProjectNational Natural Science Foundation of China[41506055] ; National Natural Science Foundation of China[41476046] ; National Natural Science Foundation of China[41476042] ; National Natural Science Foundation of China[U170120019] ; National Natural Science Foundation of China[41506085] ; Fundamental Research Funds for the Central Universities China[17CX02003A] ; Fundamental Research Funds for the Central Universities China[18CX02064A] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2017KG01] ; Key Research Program of the Chinese Academy of Sciences[Y10131] ; Helmholtz Association[VH-NG-1132]
WOS KeywordRifted Continental Margins ; River Mouth Basin ; Extension Discrepancy ; Baiyun Sag ; Tectonic Subsidence ; Iberia-newfoundland ; Thermal-expansion ; Xisha Trough ; Evolution ; Depth
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000458938900001
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/6541
Collection深海科学研究部_深海地球物理与资源研究室
Corresponding AuthorBai, Yongliang
Affiliation1.China Univ Petr, Sch Geosci, Qingdao 266580, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
4.GFZ German Res Ctr Geosci, Geodynam Modelling Sect, Potsdam, Germany
5.Univ Potsdam, Inst Earth & Environm Sci, Potsdam, Germany
6.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
Recommended Citation
GB/T 7714
Bai, Yongliang,Dong, Dongdong,Brune, Sascha,et al. Crustal stretching style variations in the northern margin of the South China Sea[J]. TECTONOPHYSICS,2019,751(1):1-12.
APA Bai, Yongliang,Dong, Dongdong,Brune, Sascha,Wu, Shiguo,&Wang, Zhenjie.(2019).Crustal stretching style variations in the northern margin of the South China Sea.TECTONOPHYSICS,751(1),1-12.
MLA Bai, Yongliang,et al."Crustal stretching style variations in the northern margin of the South China Sea".TECTONOPHYSICS 751.1(2019):1-12.
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