Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period
Oxygen isotope composition of carbonates in the sediments of Crawford Lake, southern Canada, reveals multiple climatic events during the last deglaciation, including the Bølling warming, intra-Allerød cold period, Younger Dryas, Preboreal Oscillation, and early-Holocene 8.2-ka cooling. Here we prese...
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Online Access: | http://id.erudit.org/iderudit/008301ar https://doi.org/10.7202/008301ar |
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fterudit:oai:erudit.org:008301ar 2023-05-15T16:30:18+02:00 Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period Yu, Zicheng Eicher, Ulrich 2001 http://id.erudit.org/iderudit/008301ar https://doi.org/10.7202/008301ar en eng Les Presses de l'Université de Montréal Érudit Géographie physique et Quaternaire vol. 55 no. 2 (2001) http://id.erudit.org/iderudit/008301ar doi:10.7202/008301ar Tous droits réservés © Les Presses de l'Université de Montréal, 1998 text 2001 fterudit https://doi.org/10.7202/008301ar 2022-09-24T23:12:24Z Oxygen isotope composition of carbonates in the sediments of Crawford Lake, southern Canada, reveals multiple climatic events during the last deglaciation, including the Bølling warming, intra-Allerød cold period, Younger Dryas, Preboreal Oscillation, and early-Holocene 8.2-ka cooling. Here we present a high-resolution record (~50-yr sampling interval) of oxygen isotopes from this site during the Bølling-Allerød warm period and discuss its significance by comparing it with other records around the North Atlantic. These new data show three century-scale cold events, including the intra-Bølling cold period, Older Dryas, and intra-Allerød cold period. These climatic events correlate well in sequence and relative magnitude with those found in Greenland ice cores, European lacustrine sediments, and Atlantic Ocean sediments. Three similar oscillations in glaciochemical records from GISP2 ice core imply shift in atmospheric circulation patterns. The amphi-Atlantic distribution of these climate events suggests that these events likely originated from the North Atlantic Ocean and that climatic signals were transmitted through the atmosphere. La composition des isotopes de l’oxygène dans les carbonates des sédiments du Crawford Lake, dans le sud du Canada, dévoilent l’existence de multiples phases climatiques survenues au cours de la dernière glaciation, incluant le réchauffement du Bølling, la période froide de l’intra-Allerød, le Dryas récent, l’Oscillation du pré-Boréal et le refroidissement de l’Holocène inférieur, à 8,2 ka. Les auteurs présentent un relevé précis de données (intervalle de ~50 ans) des isotopes de l’oxygène tirés du site à l’étude, au cours de la période chaude, et étudient sa signification par rapport aux autres relevés de l’Atlantique Nord. Ces nouvelles données révèlent l’existence de trois phases froides à échelle séculaire, y compris la période froide de l’intra-Bølling, le Dryas ancien et la période froide de l’intra-Allerød. Ces événements climatiques concordent bien avec la séquence et ... Text Greenland Greenland ice cores ice core North Atlantic Érudit.org (Université Montréal) Canada Crawford ENVELOPE(-86.467,-86.467,-77.717,-77.717) Greenland Géographie physique et Quaternaire 55 2 171 179 |
institution |
Open Polar |
collection |
Érudit.org (Université Montréal) |
op_collection_id |
fterudit |
language |
English |
description |
Oxygen isotope composition of carbonates in the sediments of Crawford Lake, southern Canada, reveals multiple climatic events during the last deglaciation, including the Bølling warming, intra-Allerød cold period, Younger Dryas, Preboreal Oscillation, and early-Holocene 8.2-ka cooling. Here we present a high-resolution record (~50-yr sampling interval) of oxygen isotopes from this site during the Bølling-Allerød warm period and discuss its significance by comparing it with other records around the North Atlantic. These new data show three century-scale cold events, including the intra-Bølling cold period, Older Dryas, and intra-Allerød cold period. These climatic events correlate well in sequence and relative magnitude with those found in Greenland ice cores, European lacustrine sediments, and Atlantic Ocean sediments. Three similar oscillations in glaciochemical records from GISP2 ice core imply shift in atmospheric circulation patterns. The amphi-Atlantic distribution of these climate events suggests that these events likely originated from the North Atlantic Ocean and that climatic signals were transmitted through the atmosphere. La composition des isotopes de l’oxygène dans les carbonates des sédiments du Crawford Lake, dans le sud du Canada, dévoilent l’existence de multiples phases climatiques survenues au cours de la dernière glaciation, incluant le réchauffement du Bølling, la période froide de l’intra-Allerød, le Dryas récent, l’Oscillation du pré-Boréal et le refroidissement de l’Holocène inférieur, à 8,2 ka. Les auteurs présentent un relevé précis de données (intervalle de ~50 ans) des isotopes de l’oxygène tirés du site à l’étude, au cours de la période chaude, et étudient sa signification par rapport aux autres relevés de l’Atlantique Nord. Ces nouvelles données révèlent l’existence de trois phases froides à échelle séculaire, y compris la période froide de l’intra-Bølling, le Dryas ancien et la période froide de l’intra-Allerød. Ces événements climatiques concordent bien avec la séquence et ... |
format |
Text |
author |
Yu, Zicheng Eicher, Ulrich |
spellingShingle |
Yu, Zicheng Eicher, Ulrich Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period |
author_facet |
Yu, Zicheng Eicher, Ulrich |
author_sort |
Yu, Zicheng |
title |
Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period |
title_short |
Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period |
title_full |
Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period |
title_fullStr |
Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period |
title_full_unstemmed |
Three amphi-Atlantic century-scale cold events during the Bølling-Allerød warm period |
title_sort |
three amphi-atlantic century-scale cold events during the bølling-allerød warm period |
publisher |
Les Presses de l'Université de Montréal |
publishDate |
2001 |
url |
http://id.erudit.org/iderudit/008301ar https://doi.org/10.7202/008301ar |
long_lat |
ENVELOPE(-86.467,-86.467,-77.717,-77.717) |
geographic |
Canada Crawford Greenland |
geographic_facet |
Canada Crawford Greenland |
genre |
Greenland Greenland ice cores ice core North Atlantic |
genre_facet |
Greenland Greenland ice cores ice core North Atlantic |
op_relation |
Géographie physique et Quaternaire vol. 55 no. 2 (2001) http://id.erudit.org/iderudit/008301ar doi:10.7202/008301ar |
op_rights |
Tous droits réservés © Les Presses de l'Université de Montréal, 1998 |
op_doi |
https://doi.org/10.7202/008301ar |
container_title |
Géographie physique et Quaternaire |
container_volume |
55 |
container_issue |
2 |
container_start_page |
171 |
op_container_end_page |
179 |
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1766020020960231424 |