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Seismic detection of a subglacial lake near the South Pole, Antarctica


Peters, LE and Anandakrishnan, S and Holland, CW and Horgan, HJ and Blankenship, DD and Voigt, DE, Seismic detection of a subglacial lake near the South Pole, Antarctica, Geophysical Research Letters, 35, (23) Article L23501. ISSN 0094-8276 (2008) [Refereed Article]


Copyright Statement

Copyright 2008 The American Geophysical Union.

DOI: doi:10.1029/2008GL035704


Seismic reflection data are analyzed to verify radar identification of a subglacial lake near the geographic South Pole. The seismic amplitude variation with offset (AVO) technique is applied to confirm the presence of extensive free water, and seismic imaging of the subsurface constrains lake depth and deeper subglacial structure in the region. This lake is at least 4.2 km wide (and likely as much as 10 km in diameter), is up to 32 10 m deep, and occupies a basin of thick sedimentary strata. These results imply that extensive water storage is occurring in the South Pole region. The proximity of this lake to the Amundsen - Scott South Pole Station makes research drilling to sample the lake and underlying sediments feasible and supportable.

Item Details

Item Type:Refereed Article
Keywords:subglacial lakes, seismology
Research Division:Earth Sciences
Research Group:Physical geography and environmental geoscience
Research Field:Glaciology
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Understanding climate change
Objective Field:Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)
UTAS Author:Peters, LE (Dr Leo Peters)
ID Code:103886
Year Published:2008
Web of Science® Times Cited:49
Deposited By:IMAS Research and Education Centre
Deposited On:2015-10-28
Last Modified:2015-11-17
Downloads:354 View Download Statistics

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