Crustal architecture and evolution of the southwestern South China Sea: Implications to continental breakup
文献类型：期刊论文
| 作者 | Chang, Sung-Ping3; Pubellier, Manuel3; Delescluse, Matthias3; Qiu, Yan4; Nirrengarten, Michael2; Mohn, Geoffroy2; Chamot-Rooke, Nicolas3; Liang, Yao1 |
| 刊名 | MARINE AND PETROLEUM GEOLOGY
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 136页码:1-16 |
| ISSN号 | 0264-8172 |
| 关键词 | Conjugate rifted margins South China Sea margin Breakup process |
| DOI | 10.1016/j.marpetgeo.2021.105450 |
| 英文摘要 | The South China Sea (SCS) is a marginal basin characterized by propagating breakup and subsequent seafloor spreading during the Cenozoic. Our study investigates the crustal architecture and tectonic evolution of the Xisha Islands - Northwest Borneo conjugate margins using a 1000 km long seismic profile and two shorter seismic lines. This system is characterized by wide margins showing a succession of rift basins with thinned continental crust, associated with large extensional detachment faults soling on top of the lower crust. In relation with crustal extension, several syn-rift sequences have been identified. The lower syn-rift unit (syn-rift I) shows well expressed wedge-shape growth strata. The upper one (syn-rift II) presents a more uniform thickness, and is slightly offset by normal faults dipping toward the depocenters. To illustrate the evolution of the southwestern SCS margins during continental breakup, we restore two conjugate sections near the oceanic magnetic anomaly C5En (18.8 Ma). The conjugate COT presents an asymmetrical hyper-extension architecture in cross sections, with the southern margin being the lower plate margin. In map view, the spatial variation of crustal structures illustrates a bayonet shape characterized by an initial N-S extension coeval with the first phase of seafloor spreading in the east sub-basin in the SCS. The extension direction changed shortly later (circa 23Ma) to NW-SE opening in the southwest sub-basin in relation to a ridge jump. We suggest that variable extension direction is linked to changes in the compressional tectonic regime along Borneo and Palawan. |
| WOS关键词 | POOR RIFTED MARGINS ; MAGMA-POOR ; NORTHERN MARGIN ; IBERIA-NEWFOUNDLAND ; DANGEROUS GROUNDS ; SEISMIC STRUCTURE ; EXTENSION ; TRANSITION ; CONSTRAINTS ; SUBBASIN |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000748989200001 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/104028]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Chang, Sung-Ping |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China 2.CY Cergy Paris Univ, Dept Geosci & Environm, Cergy Pontoise, France 3.PSL Res Univ, Lab Geol, Ecole Normale Super, CNRS UMR 8538, Paris, France 4.Guangzhou Marine Geol Survey, Guangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chang, Sung-Ping,Pubellier, Manuel,Delescluse, Matthias,et al. Crustal architecture and evolution of the southwestern South China Sea: Implications to continental breakup[J]. MARINE AND PETROLEUM GEOLOGY,2022,136:1-16. |
| APA | Chang, Sung-Ping.,Pubellier, Manuel.,Delescluse, Matthias.,Qiu, Yan.,Nirrengarten, Michael.,...&Liang, Yao.(2022).Crustal architecture and evolution of the southwestern South China Sea: Implications to continental breakup.MARINE AND PETROLEUM GEOLOGY,136,1-16. |
| MLA | Chang, Sung-Ping,et al."Crustal architecture and evolution of the southwestern South China Sea: Implications to continental breakup".MARINE AND PETROLEUM GEOLOGY 136(2022):1-16. |
入库方式： OAI收割
来源：地质与地球物理研究所
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