The numerical modeling of the formation and evolution of rifted continental margin
文献类型:期刊论文
作者 | Chen, L ; Song, HB ; Xu, HH ; Liu, H |
刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
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出版日期 | 2009 |
卷号 | 52期号:11页码:2781-2787 |
关键词 | Rifted continental margin Upwelling divergent mantle flow Heat flow Subsidence Stretching factor Yielding stress envelope |
ISSN号 | 0001-5733 |
通讯作者 | chenlin@mail.iggcas.ac.cn ; hbsong@mail.iggcas.ac.cn |
中文摘要 | On the basis of the isoviscous corner flow model, we established upwelling divergent mantle flow field. When this flow field acts on the base of continental lithosphere, the deformation and thinning of continental lithosphere leading to breakup and the initiation of sea-floor spreading can be described. The numerical modeling results indicate that lithosphere behaves as depth-dependent stretching manifested as stretching factors from different depth are different, and the surface heat significantly increases in response to an upwelling divergent mantle flow. The isostatic adjustment due to the mantle flow-induced thermal disturbance leads to surface subsidence; meanwhile, the thermal disturbance reduces the rheological strength of lithosphere, especially at deformation center. The critical depth of brittle deformation is reduced and the range of ductile deformation becomes larger significantly. This deformation finally evolves into continental breakup, mantle exhumation, and the formation of sea-floor spreading and rifted continental margin under the continuing impact of upwelling divergent mantle flow. |
学科主题 | Geochemistry & Geophysics |
收录类别 | SCI |
原文出处 | SCIENCE PRESS |
WOS记录号 | WOS:000272324900013 |
公开日期 | 2011-07-03 |
源URL | [http://ir.scsio.ac.cn/handle/344004/4590] ![]() |
专题 | 南海海洋研究所_中科院边缘海地质重点实验室 |
推荐引用方式 GB/T 7714 | Chen, L,Song, HB,Xu, HH,et al. The numerical modeling of the formation and evolution of rifted continental margin[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2009,52(11):2781-2787. |
APA | Chen, L,Song, HB,Xu, HH,&Liu, H.(2009).The numerical modeling of the formation and evolution of rifted continental margin.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,52(11),2781-2787. |
MLA | Chen, L,et al."The numerical modeling of the formation and evolution of rifted continental margin".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 52.11(2009):2781-2787. |
入库方式: OAI收割
来源:南海海洋研究所
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