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Along-strike segmentation of the South China Sea margin imposed by inherited pre-rift basement structures
Zhao, Fang1,2; Alves, Tiago M.3; Xia, Shaohong1,2; Li, Wei1,2; Wang, Lei4; Mi, Lijun5; Wu, Shiguo6; Cao, Jinghe1,2; Fan, Chaoyan1,2
2020-01-15
Source PublicationEARTH AND PLANETARY SCIENCE LETTERS
ISSN0012-821X
Volume530Issue:1Pages:14
Abstract

Multibeam bathymetric, seismic and borehole data are used to investigate a large-scale strike-slip structure, the Baiyun-Liwan Fault Zone, in the northern South China Sea. This fault zone comprises NW- to NE-striking faults and negative flower structures that were generated by oblique extensional displacement. Notably, the interpreted data reveals that the Baiyun-Liwan Fault Zone was active during the Cenozoic, recording intense magmatism, and accommodating significant intraplate deformation during progressive continental rifting and ocean spreading. It bounds two distinct crustal segments and played a significant role in segmenting the northern margin of the South China Sea. The geometry of faults and strata within the Baiyun-Liwan Fault Zone also controlled local sediment routing and depocentre evolution during the Cenozoic. As basement and syn-rift structures change markedly across the Baiyun-Liwan Fault Zone, we propose this structure to be inherited from a lithospheric-scale fault zone separating the Mesozoic arc from forearc-related terrains. We therefore stress the importance of pre-existing structures in the development of rifted margins, with the example provided by the Baiyun-Liwan Fault Zone having profound implications for palaeogeographic reconstructions in the South China Sea. At present, the Baiyun-Liwan Fault Zone is incised by the Pearl River Canyon and eroded by recurrent submarine landslides, forming a major area of sediment bypass towards the abyssal plain. (C) 2019 Elsevier B.V. All rights reserved.

KeywordSouth China Sea structural inheritance faults magmatism continental rifting margin segmentation
DOI10.1016/j.epsl.2019.115862
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Guangdong Province ; Science Foundation of Key Laboratory of Ocean and Marginal Sea Geology, CAS ; Rising Star Foundation of the South China Sea Institute of Oceanology
Language英语
Funding ProjectNational Natural Science Foundation of China[41706054] ; National Natural Science Foundation of China[131701641] ; National Natural Science Foundation of China[41876054] ; National Natural Science Foundation of China[41576041] ; Natural Science Foundation of Guangdong Province[2017A030310340] ; Science Foundation of Key Laboratory of Ocean and Marginal Sea Geology, CAS[OMG18-06] ; Rising Star Foundation of the South China Sea Institute of Oceanology[NEDOC2017DZ0101]
WOS KeywordRIVER MOUTH BASIN ; CRUSTAL STRUCTURE ; DIFFERENT EXPRESSIONS ; NORTHEASTERN MARGIN ; POSTRIFT MAGMATISM ; NORTHERN MARGIN ; WEST IBERIA ; BAIYUN SAG ; EVOLUTION ; BREAKUP
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000508747300005
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/7396
Collection深海科学研究部_深海地球物理与资源研究室
Corresponding AuthorXia, Shaohong
Affiliation1.Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Peoples R China
2.Chinese Acad Sci, Innovat Acad South China Sea Ecol & Environm Engn, Guangzhou 510301, Peoples R China
3.Cardiff Univ, Sch Earth & Ocean Sci, 3D Seism Lab, Main Bldg,Pk Pl, Cardiff CF10 3AT, S Glam, Wales
4.Harbin Engn Univ, Coll Underwater Acoust Engn, Harbin 150001, Peoples R China
5.CNOOC Nanhai East Petr Bur, Shenzhen 518054, Guangdong, Peoples R China
6.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Fang,Alves, Tiago M.,Xia, Shaohong,et al. Along-strike segmentation of the South China Sea margin imposed by inherited pre-rift basement structures[J]. EARTH AND PLANETARY SCIENCE LETTERS,2020,530(1):14.
APA Zhao, Fang.,Alves, Tiago M..,Xia, Shaohong.,Li, Wei.,Wang, Lei.,...&Fan, Chaoyan.(2020).Along-strike segmentation of the South China Sea margin imposed by inherited pre-rift basement structures.EARTH AND PLANETARY SCIENCE LETTERS,530(1),14.
MLA Zhao, Fang,et al."Along-strike segmentation of the South China Sea margin imposed by inherited pre-rift basement structures".EARTH AND PLANETARY SCIENCE LETTERS 530.1(2020):14.
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