Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record
Abstract The Liard Lobe formed a part of the north‐eastern sector of the Cordilleran Ice Sheet and drained ice from accumulation areas in the Selwyn, Pelly, Cassiar and Skeena mountains. This study reconstructs the ice retreat pattern of the Liard Lobe during the last deglaciation from the glacial l...
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crwiley:10.1002/jqs.2604 2024-06-02T08:08:12+00:00 Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record Margold, Martin Jansson, Krister N. Kleman, Johan Stroeven, Arjen P. 2013 http://dx.doi.org/10.1002/jqs.2604 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2604 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2604 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Quaternary Science volume 28, issue 2, page 180-188 ISSN 0267-8179 1099-1417 journal-article 2013 crwiley https://doi.org/10.1002/jqs.2604 2024-05-03T11:19:12Z Abstract The Liard Lobe formed a part of the north‐eastern sector of the Cordilleran Ice Sheet and drained ice from accumulation areas in the Selwyn, Pelly, Cassiar and Skeena mountains. This study reconstructs the ice retreat pattern of the Liard Lobe during the last deglaciation from the glacial landform record that comprises glacial lineations and landforms of the meltwater system such as eskers, meltwater channels, perched deltas and outwash fans. The spatial distribution of these landforms defines the successive configurations of the ice sheet during the deglaciation. The Liard Lobe retreated to the west and south‐west across the Hyland Highland from its local Last Glacial Maximum position in the south‐eastern Mackenzie Mountains where it coalesced with the Laurentide Ice Sheet. Retreat across the Liard Lowland is evidenced by large esker complexes that stretch across the Liard Lowland cutting across the contemporary drainage network. Ice margin positions from the late stage of deglaciation are reconstructed locally at the foot of the Cassiar Mountains and further up‐valley in an eastern‐facing valley of the Cassiar Mountains. The presented landform record indicates that the deglaciation of the Liard Lobe was accomplished mainly by active ice retreat and that ice stagnation played a minor role in the deglaciation of this region. Copyright © 2013 John Wiley & Sons, Ltd. Article in Journal/Newspaper Ice Sheet Mackenzie mountains Yukon Wiley Online Library Cassiar ENVELOPE(-129.849,-129.849,59.288,59.288) Liard ENVELOPE(-67.417,-67.417,-66.850,-66.850) Selwyn ENVELOPE(-138.287,-138.287,62.799,62.799) Skeena ENVELOPE(-130.198,-130.198,53.646,53.646) Skeena Mountains ENVELOPE(-128.671,-128.671,56.500,56.500) Yukon Journal of Quaternary Science 28 2 180 188 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The Liard Lobe formed a part of the north‐eastern sector of the Cordilleran Ice Sheet and drained ice from accumulation areas in the Selwyn, Pelly, Cassiar and Skeena mountains. This study reconstructs the ice retreat pattern of the Liard Lobe during the last deglaciation from the glacial landform record that comprises glacial lineations and landforms of the meltwater system such as eskers, meltwater channels, perched deltas and outwash fans. The spatial distribution of these landforms defines the successive configurations of the ice sheet during the deglaciation. The Liard Lobe retreated to the west and south‐west across the Hyland Highland from its local Last Glacial Maximum position in the south‐eastern Mackenzie Mountains where it coalesced with the Laurentide Ice Sheet. Retreat across the Liard Lowland is evidenced by large esker complexes that stretch across the Liard Lowland cutting across the contemporary drainage network. Ice margin positions from the late stage of deglaciation are reconstructed locally at the foot of the Cassiar Mountains and further up‐valley in an eastern‐facing valley of the Cassiar Mountains. The presented landform record indicates that the deglaciation of the Liard Lobe was accomplished mainly by active ice retreat and that ice stagnation played a minor role in the deglaciation of this region. Copyright © 2013 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Margold, Martin Jansson, Krister N. Kleman, Johan Stroeven, Arjen P. |
spellingShingle |
Margold, Martin Jansson, Krister N. Kleman, Johan Stroeven, Arjen P. Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record |
author_facet |
Margold, Martin Jansson, Krister N. Kleman, Johan Stroeven, Arjen P. |
author_sort |
Margold, Martin |
title |
Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record |
title_short |
Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record |
title_full |
Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record |
title_fullStr |
Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record |
title_full_unstemmed |
Lateglacial ice dynamics of the Cordilleran Ice Sheet in northern British Columbia and southern Yukon Territory: retreat pattern of the Liard Lobe reconstructed from the glacial landform record |
title_sort |
lateglacial ice dynamics of the cordilleran ice sheet in northern british columbia and southern yukon territory: retreat pattern of the liard lobe reconstructed from the glacial landform record |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1002/jqs.2604 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjqs.2604 https://onlinelibrary.wiley.com/doi/pdf/10.1002/jqs.2604 |
long_lat |
ENVELOPE(-129.849,-129.849,59.288,59.288) ENVELOPE(-67.417,-67.417,-66.850,-66.850) ENVELOPE(-138.287,-138.287,62.799,62.799) ENVELOPE(-130.198,-130.198,53.646,53.646) ENVELOPE(-128.671,-128.671,56.500,56.500) |
geographic |
Cassiar Liard Selwyn Skeena Skeena Mountains Yukon |
geographic_facet |
Cassiar Liard Selwyn Skeena Skeena Mountains Yukon |
genre |
Ice Sheet Mackenzie mountains Yukon |
genre_facet |
Ice Sheet Mackenzie mountains Yukon |
op_source |
Journal of Quaternary Science volume 28, issue 2, page 180-188 ISSN 0267-8179 1099-1417 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/jqs.2604 |
container_title |
Journal of Quaternary Science |
container_volume |
28 |
container_issue |
2 |
container_start_page |
180 |
op_container_end_page |
188 |
_version_ |
1800753404264316928 |