Imperial College London
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ProfessorMartinSiegert

Faculty of Natural Sciences, The Grantham Institute for Climate Change

Visiting Professor
 
 
 
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Contact

 

+44 (0)20 7594 9666m.siegert Website

 
 
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Assistant

 

Ms Gosia Gayer +44 (0)20 7594 9666

 
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Location

 

Grantham Directors OfficeSherfield BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jamieson:2015:10.1130/G37220.1,
author = {Jamieson, SSR and Ross, N and Greenbaum, JS and Young, DA and Aitken, ARA and Roberts, JL and Blankenship, DD and Bo, S and Siegert, MJ},
doi = {10.1130/G37220.1},
journal = {Geology},
pages = {87--90},
title = {An extensive subglacial lake and canyon system in Princess Elizabeth Land, East Antarctica},
url = {http://dx.doi.org/10.1130/G37220.1},
volume = {44},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The subglacial landscape of Princess Elizabeth Land (PEL) in East Antarctica is poorly known due to a paucity of ice thickness measurements. This is problematic given its importance for understanding ice sheet dynamics and landscape and climate evolution. To address this issue, we describe the topography beneath the ice sheet by assuming that ice surface expressions in satellite imagery relate to large-scale subglacial features. We find evidence that a large, previously undiscovered subglacial drainage network is hidden beneath the ice sheet in PEL. We interpret a discrete feature that is 140 × 20 km in plan form, and multiple narrow sinuous features that extend over a distance of ∼1100 km. We hypothesize that these are tectonically controlled and relate to a large subglacial basin containing a deep-water lake in the interior of PEL linked to a series of long, deep canyons. The presence of 1-km-deep canyons is confirmed at a few localities by radio-echo sounding data, and drainage analysis suggests that these canyons will direct subglacial meltwater to the coast between the Vestfold Hills and the West Ice Shelf.
AU  - Jamieson,SSR
AU  - Ross,N
AU  - Greenbaum,JS
AU  - Young,DA
AU  - Aitken,ARA
AU  - Roberts,JL
AU  - Blankenship,DD
AU  - Bo,S
AU  - Siegert,MJ
DO  - 10.1130/G37220.1
EP  - 90
PY  - 2015///
SN  - 1943-2682
SP  - 87
TI  - An extensive subglacial lake and canyon system in Princess Elizabeth Land, East Antarctica
T2  - Geology
UR  - http://dx.doi.org/10.1130/G37220.1
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000370075900004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/31020
VL  - 44
ER  -
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