Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba
In northern Manitoba, carbonates were glacially dispersed westwards for distances up to 260 km beyond the limit of carbonate bedrock. The dispersal pattern in the surface till reflects the interaction of Keewatin and Hudson – Labrador ice in the region during the Wisconsin glaciation and suggests th...
Published in: | Canadian Journal of Earth Sciences |
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Canadian Science Publishing
1988
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Online Access: | http://dx.doi.org/10.1139/e88-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/e88-073 |
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crcansciencepubl:10.1139/e88-073 2024-09-15T18:11:27+00:00 Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba Dredge, L. A. 1988 http://dx.doi.org/10.1139/e88-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/e88-073 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 25, issue 5, page 783-787 ISSN 0008-4077 1480-3313 journal-article 1988 crcansciencepubl https://doi.org/10.1139/e88-073 2024-07-25T04:10:05Z In northern Manitoba, carbonates were glacially dispersed westwards for distances up to 260 km beyond the limit of carbonate bedrock. The dispersal pattern in the surface till reflects the interaction of Keewatin and Hudson – Labrador ice in the region during the Wisconsin glaciation and suggests the presence of ice streams within the Laurentide Ice Sheet. Pre-Wisconsinan tills show different dispersal and ice-flow patterns. In unfrozen terrain, carbonate till sheets on the Shield buffer the effects of natural lake acidification and acid rain; however, their ability to buffer appears to be severely limited in permafrost terrain. Article in Journal/Newspaper Ice Ice Sheet Keewatin permafrost Canadian Science Publishing Canadian Journal of Earth Sciences 25 5 783 787 |
institution |
Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
In northern Manitoba, carbonates were glacially dispersed westwards for distances up to 260 km beyond the limit of carbonate bedrock. The dispersal pattern in the surface till reflects the interaction of Keewatin and Hudson – Labrador ice in the region during the Wisconsin glaciation and suggests the presence of ice streams within the Laurentide Ice Sheet. Pre-Wisconsinan tills show different dispersal and ice-flow patterns. In unfrozen terrain, carbonate till sheets on the Shield buffer the effects of natural lake acidification and acid rain; however, their ability to buffer appears to be severely limited in permafrost terrain. |
format |
Article in Journal/Newspaper |
author |
Dredge, L. A. |
spellingShingle |
Dredge, L. A. Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba |
author_facet |
Dredge, L. A. |
author_sort |
Dredge, L. A. |
title |
Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba |
title_short |
Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba |
title_full |
Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba |
title_fullStr |
Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba |
title_full_unstemmed |
Drift carbonate on the Canadian Shield. II: Carbonate dispersal and ice-flow patterns in northern Manitoba |
title_sort |
drift carbonate on the canadian shield. ii: carbonate dispersal and ice-flow patterns in northern manitoba |
publisher |
Canadian Science Publishing |
publishDate |
1988 |
url |
http://dx.doi.org/10.1139/e88-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/e88-073 |
genre |
Ice Ice Sheet Keewatin permafrost |
genre_facet |
Ice Ice Sheet Keewatin permafrost |
op_source |
Canadian Journal of Earth Sciences volume 25, issue 5, page 783-787 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e88-073 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
25 |
container_issue |
5 |
container_start_page |
783 |
op_container_end_page |
787 |
_version_ |
1810449052340322304 |