Articles | Volume 15, issue 8
The Cryosphere, 15, 3577–3593, 2021
https://doi.org/10.5194/tc-15-3577-2021
The Cryosphere, 15, 3577–3593, 2021
https://doi.org/10.5194/tc-15-3577-2021

Research article 03 Aug 2021

Research article | 03 Aug 2021

Thermal legacy of a large paleolake in Taylor Valley, East Antarctica, as evidenced by an airborne electromagnetic survey

Krista F. Myers et al.

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Cited articles

Anderson, J. B., Conway, H., Bart, P. J., Witus, A. E., Greenwood, S. L., McKay, R. M., Hall, B. L., Ackert, R. P., Licht, K., Jakobsson, M., and Stone, J. O.: Ross Sea paleo-ice sheet drainage and deglacial history during and since the LGM, Quaternary Sci. Rev., 100, 31–54, 2014. 
Anderson, J. B., Wilson, G. S., Fink, D., Lilly, K., Levy, R. H., and Townsend, D.: Reconciling marine and terrestrial evidence for post LGM ice sheet retreat in southern McMurdo Sound, Antarctica, Quaternary Sci. Rev., 157, 1–13, 2016. 
Arcone, S. A., Delaney, A. J., Prentice, M. L., and Horsman, J. L.: GPR reflection profiles of sedimentary deposits in lower Taylor Valley, Antarctica, paper presented at Twelfth International Conference on Ground Penetrating Radar, 15–19 June, Birmingham, United Kingdom, 2008. 
Berger, G. W., Doran, P. T., and Thomsen, K. J.: Micro-hole and multigrain quartz luminescence dating of Paleodeltas at Lake Fryxell, McMurdo Dry Valleys (Antarctica), and relevance for lake history, Quat. Geochronol., 18, 119–134, 2013. 
Chinn, T. J. H.: Accelerated Ablation at a Glacier Ice-Cliff Margin, Dry Valleys, Antarctica, INSTAAR, Univ. Color., 19, 71–80, 1987. 
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Short summary
Lake Fryxell, Antarctica, has undergone hundreds of meters of change in recent geologic history. However, there is disagreement on when lake levels were higher and by how much. This study uses resistivity data to map the subsurface conditions (frozen versus unfrozen ground) to map ancient shorelines. Our models indicate that Lake Fryxell was up to 60 m higher just 1500 to 4000 years ago. This amount of lake level change shows how sensitive these systems are to small changes in temperature.