Lithospheric structure of the Southwest South China Sea: implications for rifting and extension
文献类型:期刊论文
作者 | Dong, Miao3,4; Wu, Shiguo2,3,4; Zhang, Jian4; Xu, Xing1; Gao, Jinwei3; Song, Taoran3 |
刊名 | INTERNATIONAL GEOLOGY REVIEW |
出版日期 | 2020-05-23 |
卷号 | 62期号:7-8页码:924-937 |
ISSN号 | 0020-6814 |
关键词 | South China Sea passive margin lithospheric structure rifting and breakup |
DOI | 10.1080/00206814.2018.1539926 |
英文摘要 | The South China Sea (SCS) is an excellent site for studying the process of conjugate margin rifting, and the origin and evolution of oceanic basins. Compared with the well-defined northern margin of the SCS, the western and southern segments of the SCS margin have not been researched in significant detail. To investigate the regional structure of the southwestern SCS, a gravity model is constructed, along with the lithospheric thermal structure along a wide-angle seismic profile. The profile extends across the conjugate margins of the Southwest Sub-Basin (SWSB) of the SCS and is based on the latest multiple geophysical measurements (including heat flow and thermo-physical parameters). The results show that the average thicknesses of the crust and thermal lithosphere along the profile are about 15 km and 57 km, respectively. The overall amount of extension of continental crust and lithosphere is more than 200 km. Thermal structure of the lithosphere shows that the continental margins are in a warm thermal state. The southwest SCS is characterized by ultra-wide, thinned continental crust and lithosphere, high Moho heat flow, early syn-rift faulted basins, undeformed late syn-rifting, and high seismic velocities in the lower crust. These various pieces of evidence suggest that the break-up of the mantle lithosphere occurred before that of the continental crust favouring a depth-dependent extension of the southwestern SCS margin. |
WOS关键词 | OCEAN-CONTINENT TRANSITION ; CRUSTAL STRUCTURE ; HEAT-FLOW ; TECTONIC EVOLUTION ; NORTHERN MARGIN ; QIONGDONGNAN BASIN ; MAGMA-POOR ; CONJUGATE MARGINS ; DEEP-STRUCTURE ; SEISMIC DATA |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | TAYLOR & FRANCIS INC |
WOS记录号 | WOS:000565799900008 |
源URL | [http://ir.idsse.ac.cn/handle/183446/7902] |
专题 | 研究生部 深海科学研究部_深海地球物理与资源研究室 深海科学研究部_深海地质与地球化学研究室 |
通讯作者 | Wu, Shiguo |
作者单位 | 1.Guangzhou Marine Geol Survey, Guangzhou, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Lab Marine Geophys & Georesources, Sanya, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Dong, Miao,Wu, Shiguo,Zhang, Jian,et al. Lithospheric structure of the Southwest South China Sea: implications for rifting and extension[J]. INTERNATIONAL GEOLOGY REVIEW,2020,62(7-8):924-937. |
APA | Dong, Miao,Wu, Shiguo,Zhang, Jian,Xu, Xing,Gao, Jinwei,&Song, Taoran.(2020).Lithospheric structure of the Southwest South China Sea: implications for rifting and extension.INTERNATIONAL GEOLOGY REVIEW,62(7-8),924-937. |
MLA | Dong, Miao,et al."Lithospheric structure of the Southwest South China Sea: implications for rifting and extension".INTERNATIONAL GEOLOGY REVIEW 62.7-8(2020):924-937. |
入库方式: OAI收割
来源:深海科学与工程研究所
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