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Seismic detection of a subglacial lake near the South Pole, Antarctica
Citation
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]
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Copyright Statement
Copyright 2008 The American Geophysical Union.
Abstract
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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