Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts
Dinoflagellate cysts and XRF core scanning data from two marine sediment cores from embayments north (Bonavista Bay) and south (Placentia Bay) of Newfoundland show significant changes in ocean and atmospheric conditions of the SW Labrador Sea region during the last 5700 years. Fresh and cold conditi...
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crsagepubl:10.1177/0959683610385720 2023-05-15T14:58:47+02:00 Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts Solignac, Sandrine Seidenkrantz, Marit-Solveig Jessen, Catherine Kuijpers, Antoon Gunvald, Anja K. Olsen, Jesper 2011 http://dx.doi.org/10.1177/0959683610385720 http://journals.sagepub.com/doi/pdf/10.1177/0959683610385720 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 21, issue 4, page 539-552 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 2011 crsagepubl https://doi.org/10.1177/0959683610385720 2022-07-03T16:08:46Z Dinoflagellate cysts and XRF core scanning data from two marine sediment cores from embayments north (Bonavista Bay) and south (Placentia Bay) of Newfoundland show significant changes in ocean and atmospheric conditions of the SW Labrador Sea region during the last 5700 years. Fresh and cold conditions, probably accompanied by seasonal sea ice, prevailed both north and south of Newfoundland from c. 5.7 to 4.0 cal. kyr BP. This may be linked to intensified Labrador Current export of cold meltwater and/or sea ice from the Arctic, presumably related to warmer conditions in the northernmost latitudes and the prevalence of strong (north)westerly winds. After c. 4.0 cal. kyr BP, sea-surface conditions warmed up and sea ice decreased northeast of Newfoundland, but conditions were still cold south of Newfoundland. This suggests a decrease in Arctic meltwater export and westerly wind strength. After 2.9—2.5 cal. kyr BP, only minor changes in sea-surface conditions affected the study sites. Sea-surface temperatures increased and sea ice decreased at both sites, which may be related to a more meridional atmospheric circulation pattern associated with the general Northern Hemisphere neoglacial cooling. In Placentia Bay the warmest part of the record corresponds to the Roman Warm Period, while the warmest part of the records in Bonavista Bay notably corresponds to the Dark Ages. Article in Journal/Newspaper Arctic Bonavista Bay Labrador Sea Newfoundland Sea ice SAGE Publications (via Crossref) Arctic Newfoundland The Holocene 21 4 539 552 |
institution |
Open Polar |
collection |
SAGE Publications (via Crossref) |
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language |
English |
topic |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
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Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change Solignac, Sandrine Seidenkrantz, Marit-Solveig Jessen, Catherine Kuijpers, Antoon Gunvald, Anja K. Olsen, Jesper Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
Dinoflagellate cysts and XRF core scanning data from two marine sediment cores from embayments north (Bonavista Bay) and south (Placentia Bay) of Newfoundland show significant changes in ocean and atmospheric conditions of the SW Labrador Sea region during the last 5700 years. Fresh and cold conditions, probably accompanied by seasonal sea ice, prevailed both north and south of Newfoundland from c. 5.7 to 4.0 cal. kyr BP. This may be linked to intensified Labrador Current export of cold meltwater and/or sea ice from the Arctic, presumably related to warmer conditions in the northernmost latitudes and the prevalence of strong (north)westerly winds. After c. 4.0 cal. kyr BP, sea-surface conditions warmed up and sea ice decreased northeast of Newfoundland, but conditions were still cold south of Newfoundland. This suggests a decrease in Arctic meltwater export and westerly wind strength. After 2.9—2.5 cal. kyr BP, only minor changes in sea-surface conditions affected the study sites. Sea-surface temperatures increased and sea ice decreased at both sites, which may be related to a more meridional atmospheric circulation pattern associated with the general Northern Hemisphere neoglacial cooling. In Placentia Bay the warmest part of the record corresponds to the Roman Warm Period, while the warmest part of the records in Bonavista Bay notably corresponds to the Dark Ages. |
format |
Article in Journal/Newspaper |
author |
Solignac, Sandrine Seidenkrantz, Marit-Solveig Jessen, Catherine Kuijpers, Antoon Gunvald, Anja K. Olsen, Jesper |
author_facet |
Solignac, Sandrine Seidenkrantz, Marit-Solveig Jessen, Catherine Kuijpers, Antoon Gunvald, Anja K. Olsen, Jesper |
author_sort |
Solignac, Sandrine |
title |
Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts |
title_short |
Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts |
title_full |
Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts |
title_fullStr |
Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts |
title_full_unstemmed |
Late-Holocene sea-surface conditions offshore Newfoundland based on dinoflagellate cysts |
title_sort |
late-holocene sea-surface conditions offshore newfoundland based on dinoflagellate cysts |
publisher |
SAGE Publications |
publishDate |
2011 |
url |
http://dx.doi.org/10.1177/0959683610385720 http://journals.sagepub.com/doi/pdf/10.1177/0959683610385720 |
geographic |
Arctic Newfoundland |
geographic_facet |
Arctic Newfoundland |
genre |
Arctic Bonavista Bay Labrador Sea Newfoundland Sea ice |
genre_facet |
Arctic Bonavista Bay Labrador Sea Newfoundland Sea ice |
op_source |
The Holocene volume 21, issue 4, page 539-552 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0959683610385720 |
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The Holocene |
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21 |
container_issue |
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