DOI: 10.1002/grl.50090
论文题名: Delamination vs. break-off: The fate of continental collision
作者: Magni V. ; Faccenna C. ; Van Hunen J. ; Funiciello F.
刊名: Geophysical Research Letters
ISSN: 0094-9387
EISSN: 1944-9118
出版年: 2013
卷: 40, 期: 2 起始页码: 285
结束页码: 289
语种: 英语
Scopus关键词: 2D numerical models
; Continental collisions
; Continental lithosphere
; Continental margin
; Initial stages
; Lithospheric mantle
; Slab detachment
; Viscosity value
; Lithology
; Tectonics
; Delamination
; collision zone
; continental lithosphere
; continental margin
; delamination
; numerical model
; rheology
; slab
; subduction
; two-dimensional modeling
; viscosity
英文摘要: The fate of a convergent continental margin is investigated. We perform a set of 2D numerical models to study how and why continental collision can evolve in different scenarios. Since the rheology of continental lithosphere has a major control on the dynamics of subduction, we explore a range of different lithosphere and lower crust viscosity values to understand their sensitivity on the possible scenarios. We find that with a rheologically layered crust both delamination and break-off are feasible. We identify three modes: (1) slab detachment, in which the lithospheric mantle and the crust are strongly coupled, subduction slows down and the slab eventually breaks; (2) delamination of the lithospheric mantle that separates from the crust and continue to subduct and (3) an intermediate mode where the lithospheric mantle and the crust remain partially coupled, resulting in an initial stage of delamination followed by the slow down and cessation of subduction. © 2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84874834665&doi=10.1002%2fgrl.50090&partnerID=40&md5=50fc457d13d27b8bb8adafbd50f8c74a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6651
Appears in Collections: 气候减缓与适应
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作者单位: Università Roma Tre, LET Laboratory, Dipartimento di Scienze, Rome, Italy
Recommended Citation:
Magni V.,Faccenna C.,Van Hunen J.,et al. Delamination vs. break-off: The fate of continental collision[J]. Geophysical Research Letters,2013-01-01,40(2).