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Glacial geomorphology of the northwest Laurentide Ice Sheet on the northern Interior Plains and western Canadian Shield, Canada

Dulfer, Helen E.; Stoker, Benjamin J.; Margold, Martin; Stokes, Chris R.

Glacial geomorphology of the northwest Laurentide Ice Sheet on the northern Interior Plains and western Canadian Shield, Canada Thumbnail


Authors

Helen E. Dulfer

Benjamin J. Stoker

Martin Margold



Abstract

The majority of the Northwest Territories of mainland Canada was covered by the Laurentide Ice Sheet during the Last Glacial Maximum. The increasing coverage of high resolution remotely sensed data provides new opportunities to map the glacial geomorphology and study the glacial history of this remote location. Here we present a comprehensive map of glacial landforms within the northern Interior Plains and adjacent areas of the Canadian Shield, comprising around 6% of the Laurentide Ice Sheet bed. Twelve landform types were mapped from the high resolution ArcticDEM: ice flow parallel lineations, subglacial ribs, crevasse-squeeze ridges, major and minor moraine crests, hummocky terrain complexes and ridges, shear margin moraines, major, minor and lateral and submarginal meltwater channels, esker ridges and complexes, glaciofluvial complexes, perched deltas, raised shorelines and aeolian dunes. Together, these landforms provide a record of the highly dynamic behaviour of the northwest sector of the Laurentide Ice Sheet.

Citation

Dulfer, H. E., Stoker, B. J., Margold, M., & Stokes, C. R. (2023). Glacial geomorphology of the northwest Laurentide Ice Sheet on the northern Interior Plains and western Canadian Shield, Canada. Journal of Maps, 19(1), Article 2181714. https://doi.org/10.1080/17445647.2023.2181714

Journal Article Type Article
Acceptance Date Feb 11, 2023
Online Publication Date Mar 1, 2023
Publication Date 2023
Deposit Date Mar 20, 2023
Publicly Available Date Mar 24, 2023
Journal Journal of Maps
Publisher Taylor and Francis Group
Peer Reviewed Peer Reviewed
Volume 19
Issue 1
Article Number 2181714
DOI https://doi.org/10.1080/17445647.2023.2181714
Public URL https://durham-repository.worktribe.com/output/1178458

Files

Published Journal Article (7.7 Mb)
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of Journal of Maps
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.







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