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DOI | 10.1002/2017GL074866 |
Two-Branch Break-up Systems by a Single Mantle Plume: Insights from Numerical Modeling | |
Beniest, A.1,2; Koptev, A.1,3; Leroy, S.1; Sassi, W.2; Guichet, X.2 | |
2017-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Germany |
英文摘要 | Thermomechanical modeling of plume-induced continental break-up reveals that the initial location of a mantle anomaly relative to a lithosphere inhomogeneity has a major impact on the geometry and timing of a rift-to-spreading system. Models with a warmer Moho temperature are more likely to result in plume-centered mode, where the rift and subsequent spreading axis grow directly above the plume. Models with weak far-field forcing are inclined to develop a structural-inherited mode, with lithosphere deformation localized at the lateral lithospheric boundary. Models of a third group cultivate two break-up branches (both plume-centered and structural inherited) that form consecutively with a few million years delay. With our experimental setup, this break-up mode is sensitive to relatively small lateral variations of the initial anomaly position. We argue that one single mantle anomaly can be responsible for nonsimultaneous initiation and development of two rift-to-spreading systems in a lithosphere with a lateral strength contrast. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413921300009 |
WOS关键词 | TRISTAN-DA-CUNHA ; NORTH-ATLANTIC ; LITHOSPHERE INTERACTION ; IGNEOUS PROVINCE ; SOUTH ATLANTIC ; RIFT SYSTEMS ; NE ATLANTIC ; MARGINS ; GREENLAND ; EXTENSION |
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/25506 |
专题 | 气候变化 |
作者单位 | 1.UPMC Univ Paris 06, Sorbonne Univ, ISTeP, CNRS UMR, Paris, France; 2.IFP Energies Nouvelles, Geosci Div, Rueil Malmaison, France; 3.Univ Tubingen, Dept Geosci, Tubingen, Germany |
推荐引用方式 GB/T 7714 | Beniest, A.,Koptev, A.,Leroy, S.,et al. Two-Branch Break-up Systems by a Single Mantle Plume: Insights from Numerical Modeling[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19). |
APA | Beniest, A.,Koptev, A.,Leroy, S.,Sassi, W.,&Guichet, X..(2017).Two-Branch Break-up Systems by a Single Mantle Plume: Insights from Numerical Modeling.GEOPHYSICAL RESEARCH LETTERS,44(19). |
MLA | Beniest, A.,et al."Two-Branch Break-up Systems by a Single Mantle Plume: Insights from Numerical Modeling".GEOPHYSICAL RESEARCH LETTERS 44.19(2017). |
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