The Cryosphere
The Cryosphere
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Articles | Volume 20, issue 7
Articles | Volume 20, issue 7
https://doi.org/10.5194/tc-20-3739-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-20-3739-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 7
Research article
 | 
02 Jul 2026
Research article |  | 02 Jul 2026

Last Glacial Maximum extent and subsequent retreat of the East Antarctic Ice Sheet from the Mac. Robertson Shelf

Janina Güntzel, Juliane Müller, Ralf Tiedemann, Gesine Mollenhauer, Lester Lembke-Jene, Estella Weigelt, Lasse Schopen, Niklas Wesch, Laura Kattein, Andrew N. Mackintosh, and Johann P. Klages

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Latest update: 02 Nov 2026
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Short summary
Combined multi-proxy sediment core analyses and bathymetry data reveal the deglaciation along the Mac. Robertson Shelf, a yet insufficiently studied sector of the East Antarctic margin. Grounding line extent towards the continental shelf break prior to ~12.7 cal. ka BP and subsequent episodic mid-shelf retreat until the early Holocene prevented Dense Shelf Water formation in its current form, hence suggesting a different formation mechanism under such full glacial conditions.
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