DOI: 10.1002/2016GL071063
论文题名: The tectonic development and erosion of the Knox Subglacial Sedimentary Basin, East Antarctica
作者: Maritati A. ; Aitken A.R.A. ; Young D.A. ; Roberts J.L. ; Blankenship D.D. ; Siegert M.J.
刊名: Geophysical Research Letters
ISSN: 0094-8456
EISSN: 1944-8187
出版年: 2016
卷: 43, 期: 20 起始页码: 10728
结束页码: 10737
语种: 英语
英文关键词: East Antarctica
; Glacial Erosion
; Gondwana Breakup
; Rifting
Scopus关键词: Erosion
; Geophysics
; Glaciers
; Restoration
; Sedimentology
; Settling tanks
; Tectonics
; Basic characteristics
; East antarctic ice sheets
; East antarctica
; Glacial erosion
; Gondwana breakups
; Rifting
; Tectonic development
; Transtensional pull-apart
; Ice
英文摘要: Sedimentary basins beneath the East Antarctic Ice Sheet (EAIS) have immense potential to inform models of the tectonic evolution of East Antarctica and its ice-sheet. However, even basic characteristics such as thickness and extent are often unknown. Using airborne geophysical data, we resolve the tectonic architecture of the Knox Subglacial Sedimentary Basin in western Wilkes Land. In addition, we apply an erosion restoration model to reconstruct the original basin geometry for which we resolve geometry typical of a transtensional pull-apart basin. The tectonic architecture strongly indicates formation as a consequence of the rifting of India from East Gondwana from ca. 160-130 Ma, and we suggest a spatial link with the western Mentelle Basin offshore Western Australia. The erosion restoration model shows that erosion is confined within the rift margins, suggesting that rift structure has strongly influenced the evolution of the Denman and Scott ice streams. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84995701480&doi=10.1002%2f2016GL071063&partnerID=40&md5=b15f7d69f8193acd7ffcafd06041d757
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9419
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: School of Earth and Environment, The University of Western Australia, Perth, WA, Australia
Recommended Citation:
Maritati A.,Aitken A.R.A.,Young D.A.,et al. The tectonic development and erosion of the Knox Subglacial Sedimentary Basin, East Antarctica[J]. Geophysical Research Letters,2016-01-01,43(20).