Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic
Lines of dowels originally inserted vertically to depths of 100 and 200 mm in generally fine grained soil across sorted circles were repeatedly surveyed over a 3 year period. Measurements of dowel heave, lean, and lateral displacement provided evidence of circle activity. They suggest that the cumul...
Published in: | Canadian Journal of Earth Sciences |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1989
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/e89-076 http://www.nrcresearchpress.com/doi/pdf/10.1139/e89-076 |
id |
crcansciencepubl:10.1139/e89-076 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/e89-076 2023-12-17T10:25:49+01:00 Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic Washburn, A. L. 1989 http://dx.doi.org/10.1139/e89-076 http://www.nrcresearchpress.com/doi/pdf/10.1139/e89-076 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 26, issue 5, page 941-955 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1989 crcansciencepubl https://doi.org/10.1139/e89-076 2023-11-19T13:39:11Z Lines of dowels originally inserted vertically to depths of 100 and 200 mm in generally fine grained soil across sorted circles were repeatedly surveyed over a 3 year period. Measurements of dowel heave, lean, and lateral displacement provided evidence of circle activity. They suggest that the cumulative soil displacement was radial and that its velocity near the surface increased linearly from zero at the center of a circle to a maximum at the stony border. This permits an estimate of the minimum age of circles. Radial displacement decreased with depth and was probably negligible below an average depth of about 100 mm. Although this displacement pattern supports the soil-circulation hypothesis for well-developed sorted circles, the data also suggest some limitations. Article in Journal/Newspaper Arctic Cornwallis Island Canadian Science Publishing (via Crossref) Arctic Cornwallis ENVELOPE(-54.464,-54.464,-61.072,-61.072) Cornwallis Island ENVELOPE(-95.001,-95.001,75.135,75.135) Canadian Journal of Earth Sciences 26 5 941 955 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Washburn, A. L. Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic |
topic_facet |
General Earth and Planetary Sciences |
description |
Lines of dowels originally inserted vertically to depths of 100 and 200 mm in generally fine grained soil across sorted circles were repeatedly surveyed over a 3 year period. Measurements of dowel heave, lean, and lateral displacement provided evidence of circle activity. They suggest that the cumulative soil displacement was radial and that its velocity near the surface increased linearly from zero at the center of a circle to a maximum at the stony border. This permits an estimate of the minimum age of circles. Radial displacement decreased with depth and was probably negligible below an average depth of about 100 mm. Although this displacement pattern supports the soil-circulation hypothesis for well-developed sorted circles, the data also suggest some limitations. |
format |
Article in Journal/Newspaper |
author |
Washburn, A. L. |
author_facet |
Washburn, A. L. |
author_sort |
Washburn, A. L. |
title |
Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic |
title_short |
Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic |
title_full |
Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic |
title_fullStr |
Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic |
title_full_unstemmed |
Near-surface soil displacement in sorted circles, Resolute area, Cornwallis Island, Canadian High Arctic |
title_sort |
near-surface soil displacement in sorted circles, resolute area, cornwallis island, canadian high arctic |
publisher |
Canadian Science Publishing |
publishDate |
1989 |
url |
http://dx.doi.org/10.1139/e89-076 http://www.nrcresearchpress.com/doi/pdf/10.1139/e89-076 |
long_lat |
ENVELOPE(-54.464,-54.464,-61.072,-61.072) ENVELOPE(-95.001,-95.001,75.135,75.135) |
geographic |
Arctic Cornwallis Cornwallis Island |
geographic_facet |
Arctic Cornwallis Cornwallis Island |
genre |
Arctic Cornwallis Island |
genre_facet |
Arctic Cornwallis Island |
op_source |
Canadian Journal of Earth Sciences volume 26, issue 5, page 941-955 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e89-076 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
26 |
container_issue |
5 |
container_start_page |
941 |
op_container_end_page |
955 |
_version_ |
1785577480010072064 |