Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden
Climatic and environmental changes during the Younger Dryas stadial (GS-1) and preceding and following transitions are inferred from stable carbon and oxygen isotope records obtained from the sediments of ancient Lake Torreberga, southern Sweden. Event GS-1 is represented in the sediment sequence by...
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John Wiley & Sons Inc.
1999
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Online Access: | https://lup.lub.lu.se/record/4157601 https://doi.org/10.1002/(SICI)1099-1417(199902)14:1<17::AID-JQS406>3.0.CO;2-E |
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ftulundlup:oai:lup.lub.lu.se:a9c90769-4efa-4421-b3a2-172843183f5a 2023-05-15T17:35:13+02:00 Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden Hammarlund, Dan Edwards, TWD Bjorck, S Buchardt, B Wohlfarth, B 1999 https://lup.lub.lu.se/record/4157601 https://doi.org/10.1002/(SICI)1099-1417(199902)14:1<17::AID-JQS406>3.0.CO;2-E eng eng John Wiley & Sons Inc. https://lup.lub.lu.se/record/4157601 http://dx.doi.org/10.1002/(SICI)1099-1417(199902)14:1<17::AID-JQS406>3.0.CO;2-E wos:000078682900002 scopus:0032957148 Journal of Quaternary Science; 14(1), pp 17-28 (1999) ISSN: 1099-1417 Geology Younger Dryas GS-1 palaeotemperature estimates stable isotopes lake sediments lacustrine carbonates Sweden contributiontojournal/article info:eu-repo/semantics/article text 1999 ftulundlup https://doi.org/10.1002/(SICI)1099-1417(199902)14:1<17::AID-JQS406>3.0.CO;2-E 2023-02-01T23:27:26Z Climatic and environmental changes during the Younger Dryas stadial (GS-1) and preceding and following transitions are inferred from stable carbon and oxygen isotope records obtained from the sediments of ancient Lake Torreberga, southern Sweden. Event GS-1 is represented in the sediment sequence by 3.5 m of clay containing lacustrine carbonates of various origins. Comparison of isotopic records obtained on mollusc shells, ostracod valves, and Chara encrustations precipitated during specific seasons of the year supports estimates of relative changes in both lake water and mean annual air temperatures. Variations in soil erosion rates can also be estimated from a simple isotope-mass-balance model to separate allochthonous and autochthonous carbonate contributions to the bulk carbonate content of the sediments. The well-known, rapid climatic shifts characterising the Last Termination in the North Atlantic region are clearly reflected in the isotopic data, as well as longer-term changes within GS-1. Following maximum cooling shortly after the Allerod-Younger Dryas (GI-1-GS-1) transition, a progressive warming and a slight increase in aquatic productivity is indicated. At the Younger Dryas-Preboreal (GS-1-PB) transition mean annual air temperature rapidly increased by more than 5 degrees C and summer lake-water temperature increased by ca. 12 degrees C. The subsequent Preboreal oscillation is characterised by an increase in soil erosion and a slight decrease in mean annual air temperature. These results are in harmony with recent findings about large-scale climate dynamics during the Last Termination. Copyright (C) 1999 John Wiley & Sons, Ltd. Article in Journal/Newspaper North Atlantic Lund University Publications (LUP) |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology Younger Dryas GS-1 palaeotemperature estimates stable isotopes lake sediments lacustrine carbonates Sweden |
spellingShingle |
Geology Younger Dryas GS-1 palaeotemperature estimates stable isotopes lake sediments lacustrine carbonates Sweden Hammarlund, Dan Edwards, TWD Bjorck, S Buchardt, B Wohlfarth, B Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden |
topic_facet |
Geology Younger Dryas GS-1 palaeotemperature estimates stable isotopes lake sediments lacustrine carbonates Sweden |
description |
Climatic and environmental changes during the Younger Dryas stadial (GS-1) and preceding and following transitions are inferred from stable carbon and oxygen isotope records obtained from the sediments of ancient Lake Torreberga, southern Sweden. Event GS-1 is represented in the sediment sequence by 3.5 m of clay containing lacustrine carbonates of various origins. Comparison of isotopic records obtained on mollusc shells, ostracod valves, and Chara encrustations precipitated during specific seasons of the year supports estimates of relative changes in both lake water and mean annual air temperatures. Variations in soil erosion rates can also be estimated from a simple isotope-mass-balance model to separate allochthonous and autochthonous carbonate contributions to the bulk carbonate content of the sediments. The well-known, rapid climatic shifts characterising the Last Termination in the North Atlantic region are clearly reflected in the isotopic data, as well as longer-term changes within GS-1. Following maximum cooling shortly after the Allerod-Younger Dryas (GI-1-GS-1) transition, a progressive warming and a slight increase in aquatic productivity is indicated. At the Younger Dryas-Preboreal (GS-1-PB) transition mean annual air temperature rapidly increased by more than 5 degrees C and summer lake-water temperature increased by ca. 12 degrees C. The subsequent Preboreal oscillation is characterised by an increase in soil erosion and a slight decrease in mean annual air temperature. These results are in harmony with recent findings about large-scale climate dynamics during the Last Termination. Copyright (C) 1999 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Hammarlund, Dan Edwards, TWD Bjorck, S Buchardt, B Wohlfarth, B |
author_facet |
Hammarlund, Dan Edwards, TWD Bjorck, S Buchardt, B Wohlfarth, B |
author_sort |
Hammarlund, Dan |
title |
Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden |
title_short |
Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden |
title_full |
Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden |
title_fullStr |
Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden |
title_full_unstemmed |
Climate and environment during the Younger Dryas (GS-1) as reflected by composite stable isotope records of lacustrine carbonates at Torreberga, southern Sweden |
title_sort |
climate and environment during the younger dryas (gs-1) as reflected by composite stable isotope records of lacustrine carbonates at torreberga, southern sweden |
publisher |
John Wiley & Sons Inc. |
publishDate |
1999 |
url |
https://lup.lub.lu.se/record/4157601 https://doi.org/10.1002/(SICI)1099-1417(199902)14:1<17::AID-JQS406>3.0.CO;2-E |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Quaternary Science; 14(1), pp 17-28 (1999) ISSN: 1099-1417 |
op_relation |
https://lup.lub.lu.se/record/4157601 http://dx.doi.org/10.1002/(SICI)1099-1417(199902)14:1<17::AID-JQS406>3.0.CO;2-E wos:000078682900002 scopus:0032957148 |
op_doi |
https://doi.org/10.1002/(SICI)1099-1417(199902)14:1<17::AID-JQS406>3.0.CO;2-E |
_version_ |
1766134292532953088 |