Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada
Three separate advances of Laurentide ice during the preWisconsin and Early Wisconsin led to the formation of proglacial lakes in the Foothills of southwestern Alberta. Lakes formed in both the advance and recessional stages, the most extensive occurring during the latter. Evidence of lakes formed b...
Published in: | Canadian Journal of Earth Sciences |
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Language: | English |
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Canadian Science Publishing
1974
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Online Access: | http://dx.doi.org/10.1139/e74-115 http://www.nrcresearchpress.com/doi/pdf/10.1139/e74-115 |
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crcansciencepubl:10.1139/e74-115 2023-12-17T10:31:45+01:00 Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada Alley, N. F. Harris, S. A. 1974 http://dx.doi.org/10.1139/e74-115 http://www.nrcresearchpress.com/doi/pdf/10.1139/e74-115 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 11, issue 9, page 1220-1235 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1974 crcansciencepubl https://doi.org/10.1139/e74-115 2023-11-19T13:38:27Z Three separate advances of Laurentide ice during the preWisconsin and Early Wisconsin led to the formation of proglacial lakes in the Foothills of southwestern Alberta. Lakes formed in both the advance and recessional stages, the most extensive occurring during the latter. Evidence of lakes formed by the first advance is fragmentary, but for the later advances, the occurrence of extensive glaciolacustrine deposits and related features attests to the presence of former large bodies of water. Two lakes (Glacial Lakes Oldman and Westrup) resulted from the second advance of Laurentide ice into the Foothills. Damming of Cordilleran meltwaters by the third (Early Wisconsin) Laurentide ice sheet to affect the area, led to the formation of Glacial Lake Caldwell and the development of complex flights of valley train terraces along the Oldman and Crowsnest River valleys.The relationship of the proglacial lakes to the ice fronts substantiates the stratigraphic evidence that the Cordilleran and Laurentide ice-maxima during each advance were not synchronous and that the valley glaciers had receded considerably before the Continental ice sheet advanced into the Foothills of southwestern Alberta. Article in Journal/Newspaper Ice Sheet Canadian Science Publishing (via Crossref) Canada Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Caldwell ENVELOPE(-101.500,-101.500,-72.083,-72.083) Crowsnest ENVELOPE(-55.865,-55.865,52.733,52.733) Canadian Journal of Earth Sciences 11 9 1220 1235 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Alley, N. F. Harris, S. A. Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada |
topic_facet |
General Earth and Planetary Sciences |
description |
Three separate advances of Laurentide ice during the preWisconsin and Early Wisconsin led to the formation of proglacial lakes in the Foothills of southwestern Alberta. Lakes formed in both the advance and recessional stages, the most extensive occurring during the latter. Evidence of lakes formed by the first advance is fragmentary, but for the later advances, the occurrence of extensive glaciolacustrine deposits and related features attests to the presence of former large bodies of water. Two lakes (Glacial Lakes Oldman and Westrup) resulted from the second advance of Laurentide ice into the Foothills. Damming of Cordilleran meltwaters by the third (Early Wisconsin) Laurentide ice sheet to affect the area, led to the formation of Glacial Lake Caldwell and the development of complex flights of valley train terraces along the Oldman and Crowsnest River valleys.The relationship of the proglacial lakes to the ice fronts substantiates the stratigraphic evidence that the Cordilleran and Laurentide ice-maxima during each advance were not synchronous and that the valley glaciers had receded considerably before the Continental ice sheet advanced into the Foothills of southwestern Alberta. |
format |
Article in Journal/Newspaper |
author |
Alley, N. F. Harris, S. A. |
author_facet |
Alley, N. F. Harris, S. A. |
author_sort |
Alley, N. F. |
title |
Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada |
title_short |
Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada |
title_full |
Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada |
title_fullStr |
Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada |
title_full_unstemmed |
Pleistocene Glacial Lake Sequences in the Foothills, Southwestern Alberta, Canada |
title_sort |
pleistocene glacial lake sequences in the foothills, southwestern alberta, canada |
publisher |
Canadian Science Publishing |
publishDate |
1974 |
url |
http://dx.doi.org/10.1139/e74-115 http://www.nrcresearchpress.com/doi/pdf/10.1139/e74-115 |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) ENVELOPE(-101.500,-101.500,-72.083,-72.083) ENVELOPE(-55.865,-55.865,52.733,52.733) |
geographic |
Canada Glacial Lake Caldwell Crowsnest |
geographic_facet |
Canada Glacial Lake Caldwell Crowsnest |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Canadian Journal of Earth Sciences volume 11, issue 9, page 1220-1235 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e74-115 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
11 |
container_issue |
9 |
container_start_page |
1220 |
op_container_end_page |
1235 |
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1785585135081488384 |