Glacial Lake in the Richardson and Rae River Basins, Northwest Territories
Systematic mapping of the surficial deposits in the Richardson River basin, south and west of Coppermine, District of Mackenzie, N.W.T. has yielded strong evidence for the former existence of a glacial lake. A sequence of glacial lakes occupied an extensive portion of the basins drained by the Richa...
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Les Presses de l'Université de Montréal
1984
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fterudit:oai:erudit.org:032538ar 2023-05-15T15:56:46+02:00 Glacial Lake in the Richardson and Rae River Basins, Northwest Territories Mercier, Alain L. 1984 http://id.erudit.org/iderudit/032538ar https://doi.org/10.7202/032538ar en eng Les Presses de l'Université de Montréal Érudit Géographie physique et Quaternaire vol. 38 no. 1 (1984) http://id.erudit.org/iderudit/032538ar doi:10.7202/032538ar Tous droits réservés © Les Presses de l'Université de Montréal, 1984 text 1984 fterudit https://doi.org/10.7202/032538ar 2022-09-24T23:13:36Z Systematic mapping of the surficial deposits in the Richardson River basin, south and west of Coppermine, District of Mackenzie, N.W.T. has yielded strong evidence for the former existence of a glacial lake. A sequence of glacial lakes occupied an extensive portion of the basins drained by the Richardson and Rae rivers. Water bodies were trapped in this large depression to the west of Coronation Gulf by easterly retreating glacier ice. Four lake phases are recognized, each controlled by progressively lower outlets at 330 m, 260 m, 235 m and 165 m a.s.l. It is proposed that the lake which finally drained in a postglacial sea be called Glacial Lake Richardson. The former presence of the glacial lake and the associated deltas and outlets are essential elements in reconstructing the déglaciation history of the area. La cartographie systématique des dépôts meubles du bassin de la rivière Richardson a permis de reconnaître l'existence d'au moins un lac glaciaire d'importance dans la région. Au cours de différentes phases, le lac glaciaire a occupé une partie ou une autre de la dépression topographique formée par les bassins des rivières Rae et Richardson, à l'ouest du golfe du Couronnement. Quatre phases distinctes ont été reconnues, chacune ayant été contrôlée par des exutoires à 330 m, 260 m, 235 m et 165 m a.n.m. On propose de nommer ce lac, qui s'est drainé dans la mer post-glaciaire, « Lac glaciaire Richardson ». L'identification des différentes phases du lac glaciaire a grandement facilité la détermination des modalités de la déglaciation dans la région du bassin de la rivière Richardson. Text Coronation Gulf Northwest Territories Rae River Érudit.org (Université Montréal) Coronation Gulf ENVELOPE(-112.003,-112.003,68.134,68.134) Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Northwest Territories Rae River ENVELOPE(-115.528,-115.528,67.920,67.920) Richardson River ENVELOPE(-110.002,-110.002,57.734,57.734) Géographie physique et Quaternaire 38 1 75 80 |
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Open Polar |
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Érudit.org (Université Montréal) |
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fterudit |
language |
English |
description |
Systematic mapping of the surficial deposits in the Richardson River basin, south and west of Coppermine, District of Mackenzie, N.W.T. has yielded strong evidence for the former existence of a glacial lake. A sequence of glacial lakes occupied an extensive portion of the basins drained by the Richardson and Rae rivers. Water bodies were trapped in this large depression to the west of Coronation Gulf by easterly retreating glacier ice. Four lake phases are recognized, each controlled by progressively lower outlets at 330 m, 260 m, 235 m and 165 m a.s.l. It is proposed that the lake which finally drained in a postglacial sea be called Glacial Lake Richardson. The former presence of the glacial lake and the associated deltas and outlets are essential elements in reconstructing the déglaciation history of the area. La cartographie systématique des dépôts meubles du bassin de la rivière Richardson a permis de reconnaître l'existence d'au moins un lac glaciaire d'importance dans la région. Au cours de différentes phases, le lac glaciaire a occupé une partie ou une autre de la dépression topographique formée par les bassins des rivières Rae et Richardson, à l'ouest du golfe du Couronnement. Quatre phases distinctes ont été reconnues, chacune ayant été contrôlée par des exutoires à 330 m, 260 m, 235 m et 165 m a.n.m. On propose de nommer ce lac, qui s'est drainé dans la mer post-glaciaire, « Lac glaciaire Richardson ». L'identification des différentes phases du lac glaciaire a grandement facilité la détermination des modalités de la déglaciation dans la région du bassin de la rivière Richardson. |
format |
Text |
author |
Mercier, Alain L. |
spellingShingle |
Mercier, Alain L. Glacial Lake in the Richardson and Rae River Basins, Northwest Territories |
author_facet |
Mercier, Alain L. |
author_sort |
Mercier, Alain L. |
title |
Glacial Lake in the Richardson and Rae River Basins, Northwest Territories |
title_short |
Glacial Lake in the Richardson and Rae River Basins, Northwest Territories |
title_full |
Glacial Lake in the Richardson and Rae River Basins, Northwest Territories |
title_fullStr |
Glacial Lake in the Richardson and Rae River Basins, Northwest Territories |
title_full_unstemmed |
Glacial Lake in the Richardson and Rae River Basins, Northwest Territories |
title_sort |
glacial lake in the richardson and rae river basins, northwest territories |
publisher |
Les Presses de l'Université de Montréal |
publishDate |
1984 |
url |
http://id.erudit.org/iderudit/032538ar https://doi.org/10.7202/032538ar |
long_lat |
ENVELOPE(-112.003,-112.003,68.134,68.134) ENVELOPE(-129.463,-129.463,58.259,58.259) ENVELOPE(-115.528,-115.528,67.920,67.920) ENVELOPE(-110.002,-110.002,57.734,57.734) |
geographic |
Coronation Gulf Glacial Lake Northwest Territories Rae River Richardson River |
geographic_facet |
Coronation Gulf Glacial Lake Northwest Territories Rae River Richardson River |
genre |
Coronation Gulf Northwest Territories Rae River |
genre_facet |
Coronation Gulf Northwest Territories Rae River |
op_relation |
Géographie physique et Quaternaire vol. 38 no. 1 (1984) http://id.erudit.org/iderudit/032538ar doi:10.7202/032538ar |
op_rights |
Tous droits réservés © Les Presses de l'Université de Montréal, 1984 |
op_doi |
https://doi.org/10.7202/032538ar |
container_title |
Géographie physique et Quaternaire |
container_volume |
38 |
container_issue |
1 |
container_start_page |
75 |
op_container_end_page |
80 |
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1766392159963971584 |