DOI: 10.1016/j.epsl.2018.03.003
Scopus记录号: 2-s2.0-85044470307
论文题名: A quantitative analysis of transtensional margin width
作者: Jeanniot L. ; Buiter S.J.H.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 491 起始页码: 95
结束页码: 108
语种: 英语
英文关键词: continental rifting
; margin width
; oblique extension
; plate reconstruction
; rifted margins
; transtension
Scopus关键词: Geochronology
; Numerical models
; Continental rifting
; margin width
; Oblique extension
; Plate reconstruction
; Rifted margins
; Transtension
; Tectonics
; large igneous province
; quantitative analysis
; rift zone
; rifting
; transtension
; Atlantic Ocean
; Indian Ocean
英文摘要: Continental rifted margins show variations between a few hundred to almost a thousand kilometres in their conjugated widths from the relatively undisturbed continent to the oceanic crust. Analogue and numerical modelling results suggest that the conjugated width of rifted margins may have a relationship to their obliquity of divergence, with narrower margins occurring for higher obliquity. We here test this prediction by analysing the obliquity and rift width for 26 segments of transtensional conjugate rifted margins in the Atlantic and Indian Oceans. We use the plate reconstruction software GPlates (www.gplates.org) for different plate rotation models to estimate the direction and magnitude of rifting from the initial phases of continental rifting until breakup. Our rift width corresponds to the distance between the onshore maximum topography and the last identified continental crust. We find a weak positive correlation between the obliquity of rifting and rift width. Highly oblique margins are narrower than orthogonal margins, as expected from analogue and numerical models. We find no relationships between rift obliquities and rift duration nor the presence or absence of Large Igneous Provinces (LIPs). © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109917
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Geological Survey of Norway (NGU), Trondheim, Norway; The Centre for Earth Evolution and Dynamics, University of Oslo, Norway; Earth Sciences – Mantle Dynamics, Utrecht University, Netherlands
Recommended Citation:
Jeanniot L.,Buiter S.J.H.. A quantitative analysis of transtensional margin width[J]. Earth and Planetary Science Letters,2018-01-01,491