The subglacial geology of Wilkes Land, East Antarctica
Wilkes Land is a key region for studying the configuration of Gondwana and for appreciating the role of tectonic boundary conditions on East Antarctic Ice Sheet (EAIS) behavior. Despite this importance, it remains one of the largest regions on Earth where we lack a basic knowledge of geology. New ma...
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ftunivtasecite:oai:ecite.utas.edu.au:92301 2023-05-15T13:37:23+02:00 The subglacial geology of Wilkes Land, East Antarctica Aitken, A Young, D Ferraccioli, F Betts, P Greenbaum, J Richter, T Roberts, JL Blankenship, D Siegert, M 2014 application/pdf https://doi.org/10.1002/2014GL059405 http://ecite.utas.edu.au/92301 en eng Wiley-Blackwell Publishing, Inc http://ecite.utas.edu.au/92301/1/Aitken_2014_Wilkes_Land.pdf http://dx.doi.org/10.1002/2014GL059405 Aitken, A and Young, D and Ferraccioli, F and Betts, P and Greenbaum, J and Richter, T and Roberts, JL and Blankenship, D and Siegert, M, The subglacial geology of Wilkes Land, East Antarctica, Geophysical Research Letters, 41, (7) pp. 2390-2400. ISSN 0094-8276 (2014) [Refereed Article] http://ecite.utas.edu.au/92301 Earth Sciences Physical Geography and Environmental Geoscience Glaciology Refereed Article PeerReviewed 2014 ftunivtasecite https://doi.org/10.1002/2014GL059405 2019-12-14T07:05:03Z Wilkes Land is a key region for studying the configuration of Gondwana and for appreciating the role of tectonic boundary conditions on East Antarctic Ice Sheet (EAIS) behavior. Despite this importance, it remains one of the largest regions on Earth where we lack a basic knowledge of geology. New magnetic, gravity, and subglacial topography data allow the region's first comprehensive geological interpretation. We map lithospheric domains and their bounding faults, including the suture between Indo-Antarctica and Australo-Antarctica. Furthermore, we image subglacial sedimentary basins, including the Aurora and Knox Subglacial Basins and the previously unknown Sabrina Subglacial Basin. Commonality of structure in magnetic, gravity, and topography data suggest that pre-EAIS tectonic features are a primary control on subglacial topography the preservation of this relationship after glaciation suggests that these tectonic features provide topographic and basal boundary conditions that have strongly influenced the structure and evolution of the EAIS. Key Points Wilkes Land geology is comprehensively characterized for the first time New and known continent-scale faults and sedimentary basins are defined These major tectonic features define current subglacial topography 2014. American Geophysical Union. All Rights Reserved. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Wilkes Land eCite UTAS (University of Tasmania) Antarctic East Antarctic Ice Sheet East Antarctica Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) Geophysical Research Letters 41 7 2390 2400 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
spellingShingle |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology Aitken, A Young, D Ferraccioli, F Betts, P Greenbaum, J Richter, T Roberts, JL Blankenship, D Siegert, M The subglacial geology of Wilkes Land, East Antarctica |
topic_facet |
Earth Sciences Physical Geography and Environmental Geoscience Glaciology |
description |
Wilkes Land is a key region for studying the configuration of Gondwana and for appreciating the role of tectonic boundary conditions on East Antarctic Ice Sheet (EAIS) behavior. Despite this importance, it remains one of the largest regions on Earth where we lack a basic knowledge of geology. New magnetic, gravity, and subglacial topography data allow the region's first comprehensive geological interpretation. We map lithospheric domains and their bounding faults, including the suture between Indo-Antarctica and Australo-Antarctica. Furthermore, we image subglacial sedimentary basins, including the Aurora and Knox Subglacial Basins and the previously unknown Sabrina Subglacial Basin. Commonality of structure in magnetic, gravity, and topography data suggest that pre-EAIS tectonic features are a primary control on subglacial topography the preservation of this relationship after glaciation suggests that these tectonic features provide topographic and basal boundary conditions that have strongly influenced the structure and evolution of the EAIS. Key Points Wilkes Land geology is comprehensively characterized for the first time New and known continent-scale faults and sedimentary basins are defined These major tectonic features define current subglacial topography 2014. American Geophysical Union. All Rights Reserved. |
format |
Article in Journal/Newspaper |
author |
Aitken, A Young, D Ferraccioli, F Betts, P Greenbaum, J Richter, T Roberts, JL Blankenship, D Siegert, M |
author_facet |
Aitken, A Young, D Ferraccioli, F Betts, P Greenbaum, J Richter, T Roberts, JL Blankenship, D Siegert, M |
author_sort |
Aitken, A |
title |
The subglacial geology of Wilkes Land, East Antarctica |
title_short |
The subglacial geology of Wilkes Land, East Antarctica |
title_full |
The subglacial geology of Wilkes Land, East Antarctica |
title_fullStr |
The subglacial geology of Wilkes Land, East Antarctica |
title_full_unstemmed |
The subglacial geology of Wilkes Land, East Antarctica |
title_sort |
subglacial geology of wilkes land, east antarctica |
publisher |
Wiley-Blackwell Publishing, Inc |
publishDate |
2014 |
url |
https://doi.org/10.1002/2014GL059405 http://ecite.utas.edu.au/92301 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Antarctic East Antarctic Ice Sheet East Antarctica Wilkes Land |
geographic_facet |
Antarctic East Antarctic Ice Sheet East Antarctica Wilkes Land |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Wilkes Land |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet Wilkes Land |
op_relation |
http://ecite.utas.edu.au/92301/1/Aitken_2014_Wilkes_Land.pdf http://dx.doi.org/10.1002/2014GL059405 Aitken, A and Young, D and Ferraccioli, F and Betts, P and Greenbaum, J and Richter, T and Roberts, JL and Blankenship, D and Siegert, M, The subglacial geology of Wilkes Land, East Antarctica, Geophysical Research Letters, 41, (7) pp. 2390-2400. ISSN 0094-8276 (2014) [Refereed Article] http://ecite.utas.edu.au/92301 |
op_doi |
https://doi.org/10.1002/2014GL059405 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
7 |
container_start_page |
2390 |
op_container_end_page |
2400 |
_version_ |
1766091255642587136 |