Seismic detection of a subglacial lake near the South Pole, Antarctica
journal contributionposted on 2023-05-18, 13:48 authored by Peters, LE, Anandakrishnan, S, Holland, CW, Horgan, HJ, Blankenship, DD, Voigt, DE
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.
Publication titleGeophysical Research Letters
Department/SchoolInstitute for Marine and Antarctic Studies
PublisherAmer Geophysical Union
Place of publication2000 Florida Ave Nw, Washington, USA, Dc, 20009
Rights statementCopyright 2008 The American Geophysical Union.