Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P.
Abstract Computer reconstructions of the bathymetry of the lake were used to quantify variations in the size and form of Lake Agassiz during its final two phases (the Nipigon and Ojibway phases), between about 9200 and 7700 14 C yr B.P. (ca. 10,300–8400 cal yr B.P.). New bathymetric models for four...
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Online Access: | http://dx.doi.org/10.1006/qres.2001.2311 http://api.elsevier.com/content/article/PII:S0033589401923117?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589401923117?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400010772 |
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crcambridgeupr:10.1006/qres.2001.2311 2024-06-09T07:46:50+00:00 Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P. Leverington, David W. Mann, Jason D. Teller, James T. 2002 http://dx.doi.org/10.1006/qres.2001.2311 http://api.elsevier.com/content/article/PII:S0033589401923117?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589401923117?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400010772 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 57, issue 2, page 244-252 ISSN 0033-5894 1096-0287 journal-article 2002 crcambridgeupr https://doi.org/10.1006/qres.2001.2311 2024-05-15T13:00:00Z Abstract Computer reconstructions of the bathymetry of the lake were used to quantify variations in the size and form of Lake Agassiz during its final two phases (the Nipigon and Ojibway phases), between about 9200 and 7700 14 C yr B.P. (ca. 10,300–8400 cal yr B.P.). New bathymetric models for four Nipigon Phase stages (corresponding to the McCauleyville, Hillsboro, Burnside, and The Pas strandlines) indicate that Lake Agassiz ranged between about 19,200 and 4600 km 3 in volume and 254,000 and 151,000 km 2 in areal extent at those times. A bathymetric model of the last (Ponton) stage of the lake, corresponding to the period in which Lake Agassiz was combined with glacial Lake Ojbway to the east, shows that Lake Agassiz–Ojibway was about 163,000 km 3 in volume and 841,000 km 2 in areal extent prior to the final release of lake waters into the Tyrrell Sea. During the Nipigon Phase, a number of catastrophic releases of water from Lake Agassiz occurred as more northerly (lower) outlets were made available by the retreating southern margin of the Laurentide Ice Sheet; we estimate that each of the four newly investigated Nipigon Phase releases involved water volumes of between 1600 and 2300 km 3 . The final release of Lake Agassiz waters into the Tyrrell Sea at about 7700 14 C yr B.P. is estimated to have been about 163,000 km 3 in volume. Article in Journal/Newspaper Ice Sheet Cambridge University Press Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Ponton ENVELOPE(67.058,67.058,69.367,69.367) Tyrrell ENVELOPE(-69.512,-69.512,-69.634,-69.634) Quaternary Research 57 2 244 252 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Computer reconstructions of the bathymetry of the lake were used to quantify variations in the size and form of Lake Agassiz during its final two phases (the Nipigon and Ojibway phases), between about 9200 and 7700 14 C yr B.P. (ca. 10,300–8400 cal yr B.P.). New bathymetric models for four Nipigon Phase stages (corresponding to the McCauleyville, Hillsboro, Burnside, and The Pas strandlines) indicate that Lake Agassiz ranged between about 19,200 and 4600 km 3 in volume and 254,000 and 151,000 km 2 in areal extent at those times. A bathymetric model of the last (Ponton) stage of the lake, corresponding to the period in which Lake Agassiz was combined with glacial Lake Ojbway to the east, shows that Lake Agassiz–Ojibway was about 163,000 km 3 in volume and 841,000 km 2 in areal extent prior to the final release of lake waters into the Tyrrell Sea. During the Nipigon Phase, a number of catastrophic releases of water from Lake Agassiz occurred as more northerly (lower) outlets were made available by the retreating southern margin of the Laurentide Ice Sheet; we estimate that each of the four newly investigated Nipigon Phase releases involved water volumes of between 1600 and 2300 km 3 . The final release of Lake Agassiz waters into the Tyrrell Sea at about 7700 14 C yr B.P. is estimated to have been about 163,000 km 3 in volume. |
format |
Article in Journal/Newspaper |
author |
Leverington, David W. Mann, Jason D. Teller, James T. |
spellingShingle |
Leverington, David W. Mann, Jason D. Teller, James T. Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P. |
author_facet |
Leverington, David W. Mann, Jason D. Teller, James T. |
author_sort |
Leverington, David W. |
title |
Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P. |
title_short |
Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P. |
title_full |
Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P. |
title_fullStr |
Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P. |
title_full_unstemmed |
Changes in the Bathymetry and Volume of Glacial Lake Agassiz between 9200 and 7700 14 C yr B.P. |
title_sort |
changes in the bathymetry and volume of glacial lake agassiz between 9200 and 7700 14 c yr b.p. |
publisher |
Cambridge University Press (CUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1006/qres.2001.2311 http://api.elsevier.com/content/article/PII:S0033589401923117?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589401923117?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400010772 |
long_lat |
ENVELOPE(-129.463,-129.463,58.259,58.259) ENVELOPE(67.058,67.058,69.367,69.367) ENVELOPE(-69.512,-69.512,-69.634,-69.634) |
geographic |
Glacial Lake Ponton Tyrrell |
geographic_facet |
Glacial Lake Ponton Tyrrell |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Quaternary Research volume 57, issue 2, page 244-252 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1006/qres.2001.2311 |
container_title |
Quaternary Research |
container_volume |
57 |
container_issue |
2 |
container_start_page |
244 |
op_container_end_page |
252 |
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1801376826730217472 |