DOI: 10.1002/2016GL069087
论文题名: Synchronous oceanic spreading and continental rifting in West Antarctica
作者: Davey F.J. ; Granot R. ; Cande S.C. ; Stock J.M. ; Selvans M. ; Ferraccioli F.
刊名: Geophysical Research Letters
ISSN: 0094-9583
EISSN: 1944-9314
出版年: 2016
卷: 43, 期: 12 起始页码: 6162
结束页码: 6169
语种: 英语
英文关键词: continental rifting
Scopus关键词: Geologic models
; Strike-slip faults
; Continental crusts
; Continental rift
; Continental rifting
; Continental shelves
; Gravity gradients
; Magnetic anomalies
; Strike slip faulting
; West antarctica
; Tectonics
; continental crust
; continental rise
; gravity field
; magnetic anomaly
; oceanic crust
; rift zone
; rupture
; seafloor spreading
; strike-slip fault
; Antarctica
; East Antarctica
; Ross Sea
; Southern Ocean
; Victoria Land Basin
; West Antarctica
英文摘要: Magnetic anomalies associated with new ocean crust formation in the Adare Basin off north-western Ross Sea (43–26 Ma) can be traced directly into the Northern Basin that underlies the adjacent morphological continental shelf, implying a continuity in the emplacement of oceanic crust. Steep gravity gradients along the margins of the Northern Basin, particularly in the east, suggest that little extension and thinning of continental crust occurred before it ruptured and the new oceanic crust formed, unlike most other continental rifts and the Victoria Land Basin further south. A preexisting weak crust and localization of strain by strike-slip faulting are proposed as the factors allowing the rapid rupture of continental crust. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979036945&doi=10.1002%2f2016GL069087&partnerID=40&md5=6bbcc6f64ba0be042a8fe61fdf750567
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10546
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute of Geological and Nuclear Sciences, Lower Hutt, New Zealand
Recommended Citation:
Davey F.J.,Granot R.,Cande S.C.,et al. Synchronous oceanic spreading and continental rifting in West Antarctica[J]. Geophysical Research Letters,2016-01-01,43(12).