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DOI | 10.1038/s41561-018-0178-5 |
Continental break-up of the South China Sea stalled by far-field compression | |
Le Pourhiet, Laetitia1; Chamot-Rooke, Nicolas2; Delescluse, Matthias2; May, Dave A.3; Watremez, Louise4; Pubellier, Manuel2 | |
2018-08-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2018 |
卷号 | 11期号:8页码:605-+ |
文章类型 | Article |
语种 | 英语 |
国家 | France; England |
英文摘要 | The outcome of decades of two-dimensional modelling of lithosphere deformation under extension is that mechanical coupling between the continental crust and the underlying mantle controls how a continent breaks apart to form a new ocean. However, geological observations unequivocally show that continental break-up propagates in the third dimension at rates that do not scale with the rate of opening. Here, we perform three-dimensional numerical simulations and compare them with observations from the South China Sea to show that tectonic loading in the direction of propagation exerts a first-order control on these propagation rates. The simulations show that, in the absence of compression in that direction, continental break-up propagates fast, forming narrow continental margins independently of the coupling. When compression is applied, propagation stagnates, forming V-shaped oceanic basins and wide margins. Changes in out-of-plane loading therefore explain the alternation of fast propagation and relative stagnation. These new dynamic constraints suggest that the west-to-east topographic gradient across the Indochinese Peninsula prevented continental break-up propagation through the 1,000-km-wide continental rift of the central and west basin of the South China Sea, until the direction of stretching changed 23 million years ago, resulting in bypassing and acceleration of continental break-up propagation. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000440301400015 |
WOS关键词 | IBERIA-NEWFOUNDLAND ; PROPAGATING RIFTS ; CRUSTAL STRUCTURE ; INSIGHTS ; EXTENSION ; ANALOG ; EVOLUTION ; MARGINS ; STRESS ; MODELS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/34880 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Sorbonne Univ, Inst Sci Terre Paris, ISTeP, CNRS,INSU,UMR 7193, Paris, France; 2.PSL Res Univ, Ecole Normale Super, Lab Geol, CNRS,UMR8538, Paris, France; 3.Univ Oxford, Dept Earth Sci, Oxford, England; 4.Univ Lille, CNRS, Univ Littoral Cote Opale, UMR 8187,LOG, Lille, France |
推荐引用方式 GB/T 7714 | Le Pourhiet, Laetitia,Chamot-Rooke, Nicolas,Delescluse, Matthias,et al. Continental break-up of the South China Sea stalled by far-field compression[J]. NATURE GEOSCIENCE,2018,11(8):605-+. |
APA | Le Pourhiet, Laetitia,Chamot-Rooke, Nicolas,Delescluse, Matthias,May, Dave A.,Watremez, Louise,&Pubellier, Manuel.(2018).Continental break-up of the South China Sea stalled by far-field compression.NATURE GEOSCIENCE,11(8),605-+. |
MLA | Le Pourhiet, Laetitia,et al."Continental break-up of the South China Sea stalled by far-field compression".NATURE GEOSCIENCE 11.8(2018):605-+. |
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