Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada
Abstract This study combines different methods, including grain size, macrofossil, and pollen analyses, to reconstruct paleogeographical and paleoclimatological conditions for periods before, during, and after the isolation of a small lake (Lake Kachishayoot) in northern Québec. After the retreat of...
Published in: | Quaternary Research |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2003
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1016/s0033-5894(03)00094-2 http://api.elsevier.com/content/article/PII:S0033589403000942?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589403000942?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400012370 |
id |
crcambridgeupr:10.1016/s0033-5894(03)00094-2 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1016/s0033-5894(03)00094-2 2024-06-09T07:46:49+00:00 Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada Miousse, Luc Bhiry, Najat Lavoie, Martin 2003 http://dx.doi.org/10.1016/s0033-5894(03)00094-2 http://api.elsevier.com/content/article/PII:S0033589403000942?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589403000942?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400012370 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 60, issue 2, page 149-161 ISSN 0033-5894 1096-0287 journal-article 2003 crcambridgeupr https://doi.org/10.1016/s0033-5894(03)00094-2 2024-05-15T13:12:35Z Abstract This study combines different methods, including grain size, macrofossil, and pollen analyses, to reconstruct paleogeographical and paleoclimatological conditions for periods before, during, and after the isolation of a small lake (Lake Kachishayoot) in northern Québec. After the retreat of the Laurentide Ice Sheet around 8000 14 C yr B.P., the area was submerged by the Tyrrell Sea. The transition from marine to lacustrine environment occurred about 5400 yr B.P. Two major periods of water-level fluctuations were inferred from organic and mineral sediments: a high water level that occurred after 3200 yr B.P. and a low water level that started before 2200 yr B.P. Our chronological data for the first period are consistent with those from nearby Lac des Pluviers and from other lakes in east central Canada and in the northeastern United States. During the low-water-level period, however, there is no evidence for minor fluctuations, whereas other lakes in northern Québec and east-central Canada underwent several brief lowerings. Long-term changes in atmospheric circulation caused by changing global boundary conditions likely explained long-term water-level fluctuations of Lake Kachishayoot. Article in Journal/Newspaper Ice Sheet Cambridge University Press Canada Tyrrell ENVELOPE(-69.512,-69.512,-69.634,-69.634) Quaternary Research 60 2 149 161 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Abstract This study combines different methods, including grain size, macrofossil, and pollen analyses, to reconstruct paleogeographical and paleoclimatological conditions for periods before, during, and after the isolation of a small lake (Lake Kachishayoot) in northern Québec. After the retreat of the Laurentide Ice Sheet around 8000 14 C yr B.P., the area was submerged by the Tyrrell Sea. The transition from marine to lacustrine environment occurred about 5400 yr B.P. Two major periods of water-level fluctuations were inferred from organic and mineral sediments: a high water level that occurred after 3200 yr B.P. and a low water level that started before 2200 yr B.P. Our chronological data for the first period are consistent with those from nearby Lac des Pluviers and from other lakes in east central Canada and in the northeastern United States. During the low-water-level period, however, there is no evidence for minor fluctuations, whereas other lakes in northern Québec and east-central Canada underwent several brief lowerings. Long-term changes in atmospheric circulation caused by changing global boundary conditions likely explained long-term water-level fluctuations of Lake Kachishayoot. |
format |
Article in Journal/Newspaper |
author |
Miousse, Luc Bhiry, Najat Lavoie, Martin |
spellingShingle |
Miousse, Luc Bhiry, Najat Lavoie, Martin Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada |
author_facet |
Miousse, Luc Bhiry, Najat Lavoie, Martin |
author_sort |
Miousse, Luc |
title |
Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada |
title_short |
Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada |
title_full |
Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada |
title_fullStr |
Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada |
title_full_unstemmed |
Isolation and water-level fluctuations of Lake Kachishayoot, Northern Québec, Canada |
title_sort |
isolation and water-level fluctuations of lake kachishayoot, northern québec, canada |
publisher |
Cambridge University Press (CUP) |
publishDate |
2003 |
url |
http://dx.doi.org/10.1016/s0033-5894(03)00094-2 http://api.elsevier.com/content/article/PII:S0033589403000942?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589403000942?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400012370 |
long_lat |
ENVELOPE(-69.512,-69.512,-69.634,-69.634) |
geographic |
Canada Tyrrell |
geographic_facet |
Canada Tyrrell |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Quaternary Research volume 60, issue 2, page 149-161 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/s0033-5894(03)00094-2 |
container_title |
Quaternary Research |
container_volume |
60 |
container_issue |
2 |
container_start_page |
149 |
op_container_end_page |
161 |
_version_ |
1801376809935175680 |