Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley

In the Mackenzie River Valley between Norman Wells and Fort Simpson a study of the character, distribution and orientation of gently-inclined, linear-patterned slopes revealed that most northeast-facing, lichen-covered slopes have permafrost within about 10-25 inches of the surface, and display evid...

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Published in:ARCTIC
Main Author: Crampton, C.B.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 1974
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65935
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/65935 2023-05-15T14:19:19+02:00 Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley Crampton, C.B. 1974-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65935 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65935/49849 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65935 ARCTIC; Vol. 27 No. 4 (1974): December: 249–324; 265-272 1923-1245 0004-0843 Active layer info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1974 ftunivcalgaryojs 2022-03-22T21:22:54Z In the Mackenzie River Valley between Norman Wells and Fort Simpson a study of the character, distribution and orientation of gently-inclined, linear-patterned slopes revealed that most northeast-facing, lichen-covered slopes have permafrost within about 10-25 inches of the surface, and display evidence that cryoturbation was once operative in the active layer. Most lineated slopes without near-surface permafrost face southwest, are surficially more moist, and are characteristically associated with sedges and Sphagnum. On these slopes that receive the greatest incoming solar radiation, and where the active layer is thicker, there is little evidence that cryoturbation was once operative. The northeast-facing slopes generally provide forage for caribou; the southwest-facing slopes are least subject to gully erosion. Article in Journal/Newspaper Arctic Fort Simpson Mackenzie river permafrost University of Calgary Journal Hosting Fort Simpson ENVELOPE(-121.320,-121.320,61.808,61.808) Mackenzie River Norman Wells ENVELOPE(-126.833,-126.833,65.282,65.282) ARCTIC 27 4
institution Open Polar
collection University of Calgary Journal Hosting
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language English
topic Active layer
spellingShingle Active layer
Crampton, C.B.
Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley
topic_facet Active layer
description In the Mackenzie River Valley between Norman Wells and Fort Simpson a study of the character, distribution and orientation of gently-inclined, linear-patterned slopes revealed that most northeast-facing, lichen-covered slopes have permafrost within about 10-25 inches of the surface, and display evidence that cryoturbation was once operative in the active layer. Most lineated slopes without near-surface permafrost face southwest, are surficially more moist, and are characteristically associated with sedges and Sphagnum. On these slopes that receive the greatest incoming solar radiation, and where the active layer is thicker, there is little evidence that cryoturbation was once operative. The northeast-facing slopes generally provide forage for caribou; the southwest-facing slopes are least subject to gully erosion.
format Article in Journal/Newspaper
author Crampton, C.B.
author_facet Crampton, C.B.
author_sort Crampton, C.B.
title Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley
title_short Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley
title_full Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley
title_fullStr Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley
title_full_unstemmed Linear-Patterned Slopes in the Discontinuous Permafrost Zone of the Central Mackenzie River Valley
title_sort linear-patterned slopes in the discontinuous permafrost zone of the central mackenzie river valley
publisher The Arctic Institute of North America
publishDate 1974
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65935
long_lat ENVELOPE(-121.320,-121.320,61.808,61.808)
ENVELOPE(-126.833,-126.833,65.282,65.282)
geographic Fort Simpson
Mackenzie River
Norman Wells
geographic_facet Fort Simpson
Mackenzie River
Norman Wells
genre Arctic
Fort Simpson
Mackenzie river
permafrost
genre_facet Arctic
Fort Simpson
Mackenzie river
permafrost
op_source ARCTIC; Vol. 27 No. 4 (1974): December: 249–324; 265-272
1923-1245
0004-0843
op_relation https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65935/49849
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/65935
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