Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves
Twenty-one uplift curves from Arctic Canada indicate a similar proportional response through time. The time/altitude relationship can thus be expressed as a per cent of uplift within a specific time period. A graph of the results is a smoothly decelerating curve. Uplift curves can be approximated by...
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1968
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Online Access: | http://dx.doi.org/10.1139/e68-004 http://www.nrcresearchpress.com/doi/pdf/10.1139/e68-004 |
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crcansciencepubl:10.1139/e68-004 2024-09-15T18:04:19+00:00 Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves Andrews, J. T. 1968 http://dx.doi.org/10.1139/e68-004 http://www.nrcresearchpress.com/doi/pdf/10.1139/e68-004 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 5, issue 1, page 39-47 ISSN 0008-4077 1480-3313 journal-article 1968 crcansciencepubl https://doi.org/10.1139/e68-004 2024-08-15T04:09:29Z Twenty-one uplift curves from Arctic Canada indicate a similar proportional response through time. The time/altitude relationship can thus be expressed as a per cent of uplift within a specific time period. A graph of the results is a smoothly decelerating curve. Uplift curves can be approximated by the formula: U = A(1 − i t )/(1 − i) where U is uplift, t is time with 0.0 years being the moment of site deglaciation, i is a constant for Arctic Canada equal to 0.677, and A varies with time and amount of recorded uplift. Tables and a figure are presented so that uplift curves can be predicted on the basis of: (1) elevation of the marine limit; and (2) date of site deglaciation. A comparison between Arctic Canada, east Greenland, and Fennoscandia indicates that relaxation times for a comparable period (10 × 10 3 years) are 2.5, 1.7, and 3.0 × 10 3 years respectively. Velocities derived from uplift curves allow the amount of residual uplift to be calculated. A figure of 100 m is suggested for a sector of Hudson Bay. Article in Journal/Newspaper East Greenland Fennoscandia Greenland Hudson Bay Canadian Science Publishing Canadian Journal of Earth Sciences 5 1 39 47 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Twenty-one uplift curves from Arctic Canada indicate a similar proportional response through time. The time/altitude relationship can thus be expressed as a per cent of uplift within a specific time period. A graph of the results is a smoothly decelerating curve. Uplift curves can be approximated by the formula: U = A(1 − i t )/(1 − i) where U is uplift, t is time with 0.0 years being the moment of site deglaciation, i is a constant for Arctic Canada equal to 0.677, and A varies with time and amount of recorded uplift. Tables and a figure are presented so that uplift curves can be predicted on the basis of: (1) elevation of the marine limit; and (2) date of site deglaciation. A comparison between Arctic Canada, east Greenland, and Fennoscandia indicates that relaxation times for a comparable period (10 × 10 3 years) are 2.5, 1.7, and 3.0 × 10 3 years respectively. Velocities derived from uplift curves allow the amount of residual uplift to be calculated. A figure of 100 m is suggested for a sector of Hudson Bay. |
format |
Article in Journal/Newspaper |
author |
Andrews, J. T. |
spellingShingle |
Andrews, J. T. Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves |
author_facet |
Andrews, J. T. |
author_sort |
Andrews, J. T. |
title |
Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves |
title_short |
Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves |
title_full |
Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves |
title_fullStr |
Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves |
title_full_unstemmed |
Postglacial rebound in Arctic Canada: similarity and prediction of uplift curves |
title_sort |
postglacial rebound in arctic canada: similarity and prediction of uplift curves |
publisher |
Canadian Science Publishing |
publishDate |
1968 |
url |
http://dx.doi.org/10.1139/e68-004 http://www.nrcresearchpress.com/doi/pdf/10.1139/e68-004 |
genre |
East Greenland Fennoscandia Greenland Hudson Bay |
genre_facet |
East Greenland Fennoscandia Greenland Hudson Bay |
op_source |
Canadian Journal of Earth Sciences volume 5, issue 1, page 39-47 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e68-004 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
5 |
container_issue |
1 |
container_start_page |
39 |
op_container_end_page |
47 |
_version_ |
1810441811488931840 |