The numerical modeling of the formation and evolution of rifted continental margin

doi:10.3969/j.issn.0001-5733.2009.11.013

	The numerical modeling of the formation and evolution of rifted continental margin
	Chen Lin 1,2; Song Hai-Bin 1; Xu He-Hua 3; Liu Hong 1
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2009-11-01
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
DOI	10.3969/j.issn.0001-5733.2009.11.013
文献子类	Article
英文摘要	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.
WOS关键词	TECTONIC EVOLUTION ; THERMAL EVOLUTION ; PASSIVE MARGINS ; LITHOSPHERE ; MANTLE ; RHEOLOGY ; EXTENSION ; BREAKUP ; GALICIA ; BASINS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000272324900013
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/71056]
专题	中国科学院地质与地球物理研究所
通讯作者	Chen Lin
作者单位	1.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Chen Lin,Song Hai-Bin,Xu He-Hua,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 Lin,Song Hai-Bin,Xu He-Hua,&Liu Hong.(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 Lin,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.