The glacial geomorphology of the Mackenzie Mountains region, Canada

ABSTRACTDuring the Last Glacial Maximum, the Mackenzie Mountains region was glaciated by three distinct ice sources; the Laurentide Ice Sheet, the Cordilleran Ice Sheet, and independent montane glaciers. Rapid ice sheet thinning of the Laurentide-Cordilleran ice saddle in the south of this region co...

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Main Authors: Benjamin J. Stoker, Martin Margold, Duane Froese
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Journal of Maps
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/17445647.2023.2203333
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author Benjamin J. Stoker
Martin Margold
Duane Froese
author_facet Benjamin J. Stoker
Martin Margold
Duane Froese
author_sort Benjamin J. Stoker
collection DOAJ
description ABSTRACTDuring the Last Glacial Maximum, the Mackenzie Mountains region was glaciated by three distinct ice sources; the Laurentide Ice Sheet, the Cordilleran Ice Sheet, and independent montane glaciers. Rapid ice sheet thinning of the Laurentide-Cordilleran ice saddle in the south of this region contributed to rapid sea level rise events and influenced the style of deglaciation to the north. The current understanding of the glacial history of the broader region has been established through mapping from aerial imagery and early surveys between the early 1970s to the 2010s. The central portions of the Mackenzie Mountains have not yet been mapped. We present a new glacial geomorphological map for the Mackenzie Mountains region covering over 220,000 km2. This updated geomorphological map will form the basis of future work to reconstruct the former maximum ice extents, flow dynamics, and retreat pattern.
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spelling doaj.art-3bdbde46f12d4c8a8133091184e98b4e2023-08-10T04:51:40ZengTaylor & Francis GroupJournal of Maps1744-56472023-12-0119110.1080/17445647.2023.2203333The glacial geomorphology of the Mackenzie Mountains region, CanadaBenjamin J. Stoker0Martin Margold1Duane Froese2Department of Physical Geography and Geoecology, Charles University, Prague, CzechiaDepartment of Physical Geography and Geoecology, Charles University, Prague, CzechiaDepartment of Earth and Atmospheric Sciences, University of Alberta, Edmonton, CanadaABSTRACTDuring the Last Glacial Maximum, the Mackenzie Mountains region was glaciated by three distinct ice sources; the Laurentide Ice Sheet, the Cordilleran Ice Sheet, and independent montane glaciers. Rapid ice sheet thinning of the Laurentide-Cordilleran ice saddle in the south of this region contributed to rapid sea level rise events and influenced the style of deglaciation to the north. The current understanding of the glacial history of the broader region has been established through mapping from aerial imagery and early surveys between the early 1970s to the 2010s. The central portions of the Mackenzie Mountains have not yet been mapped. We present a new glacial geomorphological map for the Mackenzie Mountains region covering over 220,000 km2. This updated geomorphological map will form the basis of future work to reconstruct the former maximum ice extents, flow dynamics, and retreat pattern.https://www.tandfonline.com/doi/10.1080/17445647.2023.2203333Glacial geomorphologyLaurentide Ice Sheetremote sensing
spellingShingle Benjamin J. Stoker
Martin Margold
Duane Froese
The glacial geomorphology of the Mackenzie Mountains region, Canada
Journal of Maps
Glacial geomorphology
Laurentide Ice Sheet
remote sensing
title The glacial geomorphology of the Mackenzie Mountains region, Canada
title_full The glacial geomorphology of the Mackenzie Mountains region, Canada
title_fullStr The glacial geomorphology of the Mackenzie Mountains region, Canada
title_full_unstemmed The glacial geomorphology of the Mackenzie Mountains region, Canada
title_short The glacial geomorphology of the Mackenzie Mountains region, Canada
title_sort glacial geomorphology of the mackenzie mountains region canada
topic Glacial geomorphology
Laurentide Ice Sheet
remote sensing
url https://www.tandfonline.com/doi/10.1080/17445647.2023.2203333
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