The Cryosphere
The Cryosphere
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Articles | Volume 19, issue 9
Articles | Volume 19, issue 9
https://doi.org/10.5194/tc-19-3681-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-19-3681-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 9
Research article
 | 
10 Sep 2025
Research article |  | 10 Sep 2025

A thicker-than-present East Antarctic Ice Sheet plateau during the Last Glacial Maximum

Cari Rand, Richard S. Jones, Andrew N. Mackintosh, Brent Goehring, and Kat Lilly

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Short summary
In this study, we determine how recently samples from a mountain in East Antarctica were last covered by the East Antarctic Ice Sheet.  By examining concentrations of 14C in rock samples, we determined that all but the summit of the mountain was buried under glacial ice within the last 15 kyr. Other methods of estimating past ice thicknesses are not sensitive enough to capture ice cover this recent, so we were previously unaware that ice at this site was thicker at this time.
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