Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories

Experiments were carried out during the 1967–1972 period in an attempt to measure cryostatic (frost-induced) pressures by means of soil pressure cells installed in nonsorted circles (mud hummocks) at Inuvik, N.W.T. Although slight soil pressure increases were measured in the hummocks during the free...

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Published in:Canadian Journal of Earth Sciences
Main Authors: Mackay, J. Ross, MacKay, D. K.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1976
Subjects:
Online Access:http://dx.doi.org/10.1139/e76-092
http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-092
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spelling crcansciencepubl:10.1139/e76-092 2024-09-15T18:15:10+00:00 Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories Mackay, J. Ross MacKay, D. K. 1976 http://dx.doi.org/10.1139/e76-092 http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-092 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 13, issue 7, page 889-897 ISSN 0008-4077 1480-3313 journal-article 1976 crcansciencepubl https://doi.org/10.1139/e76-092 2024-07-25T04:10:08Z Experiments were carried out during the 1967–1972 period in an attempt to measure cryostatic (frost-induced) pressures by means of soil pressure cells installed in nonsorted circles (mud hummocks) at Inuvik, N.W.T. Although slight soil pressure increases were measured in the hummocks during the freeze-back period, the field evidence shows that the hummock centers became desiccated, overconsolidated, and immobile rather than saturated, underconsolidated, and mobile, because of water loss to growing ice lenses at the top and bottom of the active layer. Cryostatic pressures during the freeze-back period are considered to be no more important than thaw displacement in the summer. The Inuvik mud hummocks appear to maintain considerable stability and individual identity over a time span of hundreds of years. Article in Journal/Newspaper Inuvik Northwest Territories Canadian Science Publishing Canadian Journal of Earth Sciences 13 7 889 897
institution Open Polar
collection Canadian Science Publishing
op_collection_id crcansciencepubl
language English
description Experiments were carried out during the 1967–1972 period in an attempt to measure cryostatic (frost-induced) pressures by means of soil pressure cells installed in nonsorted circles (mud hummocks) at Inuvik, N.W.T. Although slight soil pressure increases were measured in the hummocks during the freeze-back period, the field evidence shows that the hummock centers became desiccated, overconsolidated, and immobile rather than saturated, underconsolidated, and mobile, because of water loss to growing ice lenses at the top and bottom of the active layer. Cryostatic pressures during the freeze-back period are considered to be no more important than thaw displacement in the summer. The Inuvik mud hummocks appear to maintain considerable stability and individual identity over a time span of hundreds of years.
format Article in Journal/Newspaper
author Mackay, J. Ross
MacKay, D. K.
spellingShingle Mackay, J. Ross
MacKay, D. K.
Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories
author_facet Mackay, J. Ross
MacKay, D. K.
author_sort Mackay, J. Ross
title Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories
title_short Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories
title_full Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories
title_fullStr Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories
title_full_unstemmed Cryostatic pressures in nonsorted circles (mud hummocks), Inuvik, Northwest Territories
title_sort cryostatic pressures in nonsorted circles (mud hummocks), inuvik, northwest territories
publisher Canadian Science Publishing
publishDate 1976
url http://dx.doi.org/10.1139/e76-092
http://www.nrcresearchpress.com/doi/pdf/10.1139/e76-092
genre Inuvik
Northwest Territories
genre_facet Inuvik
Northwest Territories
op_source Canadian Journal of Earth Sciences
volume 13, issue 7, page 889-897
ISSN 0008-4077 1480-3313
op_rights http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining
op_doi https://doi.org/10.1139/e76-092
container_title Canadian Journal of Earth Sciences
container_volume 13
container_issue 7
container_start_page 889
op_container_end_page 897
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