Articles | Volume 13, issue 1
The Cryosphere, 13, 97–111, 2019
https://doi.org/10.5194/tc-13-97-2019
The Cryosphere, 13, 97–111, 2019
https://doi.org/10.5194/tc-13-97-2019
Research article
11 Jan 2019
Research article | 11 Jan 2019

Origin, burial and preservation of late Pleistocene-age glacier ice in Arctic permafrost (Bylot Island, NU, Canada)

Stephanie Coulombe et al.

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Cited articles

Allard, M.: Geomorphological changes and permafrost dynamics: key factors in changing arctic ecosystems. An example from Bylot Island, Nunavut, Canada, Geoscience Canada, 205–212, 1996. 
Allard, M., Sarrazin, D., and L'Herault, E.: Borehole and near-surface ground temperatures in northeastern Canada, Nordicana D8, 2016. 
Allen, C. R., Kamb, W. B., Meier, M. F., and Sharp, R. P.: Structure of the lower Blue glacier, Washington, The J. Geol., 68, 601–625, https://doi.org/10.1086/626700, 1960. 
Alley, R. B., Lawson, D. E., Evenson, E. B., Strasser, J. C., and Larson, G. J.: Glaciohydraulic supercooling: a freeze-on mechanism to create stratified, debris-rich basal ice: II. Theory, J. Glaciol., 44, 563–568, 1998. 
Astakhov, V. I.: Geological conditions for the burial of Pleistocene glacier ice on the Yenisey, Polar Geogr. Geol., 10, 286–295, https://doi.org/10.1080/10889378609377298, 1986. 
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This study provides a detailed description of relict glacier ice preserved in the permafrost of Bylot Island (Nunavut). We demonstrate that the 18O composition (-34.0 0.4 ‰) of the ice is consistent with the late Pleistocene age ice in the Barnes Ice Cap. As most of the glaciated Arctic landscapes are still strongly determined by their glacial legacy, the melting of these large ice bodies could have significant impacts on permafrost geosystem landscape dynamics and ecosystems.