Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago
A complex of glacial landforms on northeastern Victoria Island records diverse flows within the waning late Wisconsinan Laurentide Ice Sheet over an area now divided by marine straits. Resolution of this ice flow pattern shows that dominant streamlined landforms were built by three radically differe...
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Online Access: | http://dx.doi.org/10.1111/j.1502-3885.1994.tb00582.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1994.tb00582.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1994.tb00582.x |
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crwiley:10.1111/j.1502-3885.1994.tb00582.x 2024-06-02T07:59:57+00:00 Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago HODGSON, DOUGLAS A. 1994 http://dx.doi.org/10.1111/j.1502-3885.1994.tb00582.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1994.tb00582.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1994.tb00582.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 23, issue 1, page 14-28 ISSN 0300-9483 1502-3885 journal-article 1994 crwiley https://doi.org/10.1111/j.1502-3885.1994.tb00582.x 2024-05-03T11:34:42Z A complex of glacial landforms on northeastern Victoria Island records diverse flows within the waning late Wisconsinan Laurentide Ice Sheet over an area now divided by marine straits. Resolution of this ice flow pattern shows that dominant streamlined landforms were built by three radically different ice flows between 11,000 and 9000 BP. Subsequent to the glacial maximum, the marine‐based ice front retreated at least 300 km to reach northeast Victoria Island by 10,400 BP. Disequilibration at the rapidly retreating margin induced minor surges on western Storkerson Peninsula (Flow 1). Next, a readvance into Hadley Bay transported 10,300 BP shells, while a major ice stream over eastern Storkerson Peninsula (Flow 2) remoulded till into a drumlin field several hundred kilometres long and at least 80 km wide until flow ceased prior to 9600 BP. The ice stream surged into Parry Channel, covering 20,000 km 2 with the Viscount Melville Sound Ice Shelf. Finally, Flow 2 drumlins on the northwest shore of M'Clintock Channel were cross‐cut c . 9300 BP by advance of the grounded margin of a buoyant glacier (Flow 3), possibly an analogue of Flow 2 displaced farther south. Article in Journal/Newspaper Arctic Archipelago Arctic Canadian Arctic Archipelago Hadley Bay Ice Sheet Ice Shelf Ice Shelves Parry Channel Victoria Island Viscount Melville Sound Wiley Online Library Arctic Canadian Arctic Archipelago Parry ENVELOPE(-62.417,-62.417,-64.283,-64.283) M'Clintock ENVELOPE(-94.214,-94.214,57.802,57.802) Melville Sound ENVELOPE(-107.002,-107.002,68.168,68.168) Viscount Melville Sound ENVELOPE(-109.836,-109.836,74.046,74.046) M'Clintock Channel ENVELOPE(-102.002,-102.002,72.001,72.001) Storkerson Peninsula ENVELOPE(-106.503,-106.503,72.501,72.501) Boreas 23 1 14 28 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
A complex of glacial landforms on northeastern Victoria Island records diverse flows within the waning late Wisconsinan Laurentide Ice Sheet over an area now divided by marine straits. Resolution of this ice flow pattern shows that dominant streamlined landforms were built by three radically different ice flows between 11,000 and 9000 BP. Subsequent to the glacial maximum, the marine‐based ice front retreated at least 300 km to reach northeast Victoria Island by 10,400 BP. Disequilibration at the rapidly retreating margin induced minor surges on western Storkerson Peninsula (Flow 1). Next, a readvance into Hadley Bay transported 10,300 BP shells, while a major ice stream over eastern Storkerson Peninsula (Flow 2) remoulded till into a drumlin field several hundred kilometres long and at least 80 km wide until flow ceased prior to 9600 BP. The ice stream surged into Parry Channel, covering 20,000 km 2 with the Viscount Melville Sound Ice Shelf. Finally, Flow 2 drumlins on the northwest shore of M'Clintock Channel were cross‐cut c . 9300 BP by advance of the grounded margin of a buoyant glacier (Flow 3), possibly an analogue of Flow 2 displaced farther south. |
format |
Article in Journal/Newspaper |
author |
HODGSON, DOUGLAS A. |
spellingShingle |
HODGSON, DOUGLAS A. Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago |
author_facet |
HODGSON, DOUGLAS A. |
author_sort |
HODGSON, DOUGLAS A. |
title |
Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago |
title_short |
Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago |
title_full |
Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago |
title_fullStr |
Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago |
title_full_unstemmed |
Episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late Wisconsinan Laurentide Ice Sheet over the central Canadian Arctic Archipelago |
title_sort |
episodic ice streams and ice shelves during retreat of the northwesternmost sector of the late wisconsinan laurentide ice sheet over the central canadian arctic archipelago |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1502-3885.1994.tb00582.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1994.tb00582.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1994.tb00582.x |
long_lat |
ENVELOPE(-62.417,-62.417,-64.283,-64.283) ENVELOPE(-94.214,-94.214,57.802,57.802) ENVELOPE(-107.002,-107.002,68.168,68.168) ENVELOPE(-109.836,-109.836,74.046,74.046) ENVELOPE(-102.002,-102.002,72.001,72.001) ENVELOPE(-106.503,-106.503,72.501,72.501) |
geographic |
Arctic Canadian Arctic Archipelago Parry M'Clintock Melville Sound Viscount Melville Sound M'Clintock Channel Storkerson Peninsula |
geographic_facet |
Arctic Canadian Arctic Archipelago Parry M'Clintock Melville Sound Viscount Melville Sound M'Clintock Channel Storkerson Peninsula |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago Hadley Bay Ice Sheet Ice Shelf Ice Shelves Parry Channel Victoria Island Viscount Melville Sound |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago Hadley Bay Ice Sheet Ice Shelf Ice Shelves Parry Channel Victoria Island Viscount Melville Sound |
op_source |
Boreas volume 23, issue 1, page 14-28 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1502-3885.1994.tb00582.x |
container_title |
Boreas |
container_volume |
23 |
container_issue |
1 |
container_start_page |
14 |
op_container_end_page |
28 |
_version_ |
1800743992414961664 |