Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark
We conducted multi-proxy geochemical analyses (including measurements of organic carbon, nitrogen and sulphur stable isotope composition, and carbonate carbon and oxygen isotope composition) on a 13.5 m sediment core from Lake Bliden, Denmark, which provide a record of shifting hydrological conditio...
Published in: | Journal of Paleolimnology |
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Online Access: | https://curis.ku.dk/portal/da/publications/mid-to-late-holocene-climate-variability-and-anthropogenic-impacts(d9670560-5f0b-11de-a8de-000ea68e967b).html https://doi.org/10.1007/s10933-009-9334-7 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/d9670560-5f0b-11de-a8de-000ea68e967b 2024-01-14T10:07:24+01:00 Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark Olsen, J. Noe-Nygaard, Nanna Wolfe, B. B. 2010 https://curis.ku.dk/portal/da/publications/mid-to-late-holocene-climate-variability-and-anthropogenic-impacts(d9670560-5f0b-11de-a8de-000ea68e967b).html https://doi.org/10.1007/s10933-009-9334-7 eng eng info:eu-repo/semantics/restrictedAccess Olsen , J , Noe-Nygaard , N & Wolfe , B B 2010 , ' Mid to Late Holocene climate variability and anthropogenic impacts : multi proxy evidence from Lake Bliden, Denmark ' , Journal of Paleolimnology , vol. 43 , no. 2 , pp. 323-43 . https://doi.org/10.1007/s10933-009-9334-7 article 2010 ftcopenhagenunip https://doi.org/10.1007/s10933-009-9334-7 2023-12-20T23:59:04Z We conducted multi-proxy geochemical analyses (including measurements of organic carbon, nitrogen and sulphur stable isotope composition, and carbonate carbon and oxygen isotope composition) on a 13.5 m sediment core from Lake Bliden, Denmark, which provide a record of shifting hydrological conditions for the past 6,700 years. The early part of the stratigraphic record (6,700–5,740 cal year BP) was wet, based on d18Ocarb and lithology, and corresponds to the Holocene Thermal Maximum. Shifts in primarily d18Ocarb indicate dry conditions prevailed from 5,740 to 2,800 cal year BP, although this was interrupted by very wet conditions from 5,300 to 5,150, 4,300 to 4,050 and 3,700 to 3,450 cal year BP. The timing of the latter two moist intervals is consistent with other Scandinavian paleoclimatic records. Dry conditions at Lake Bliden between 3,450 and 2,800 cal year BP is consistent with other paleolimnological records from southern Sweden but contrasts with records in central Sweden, possibly suggesting a more northerly trajectory of prevailing westerlies carrying moisture from the North Atlantic at this time. Overall, fluctuating moisture conditions at Lake Bliden appear to be strongly linked to changing sea surface temperatures in the Greenland, Iceland and Norwegian seas. After 2,800 cal year BP, sedimentology, magnetic susceptibility, d13CORG, d13Ccarb and d18Ocarb indicate a major reduction on water level, which caused the depositional setting at the coring site to shift from the profundal to littoral zone. The Roman Warm Period (2,200–1,500 cal year BP) appears dry based on enriched d18Ocarb values. Possible effects of human disturbance in the watershed after 820 cal year BP complicate attempts to interpret the stratigraphic record although tentative interpretation of the d18Ocarb, magnetic susceptibility, d13CORG, d13Ccarb and d18Ocarb records suggest that the Medieval Warm Period was dry and the Little Ice Age was wet. We conducted multi-proxy geochemical analyses (including measurements of organic ... Article in Journal/Newspaper Greenland Iceland North Atlantic University of Copenhagen: Research Greenland Journal of Paleolimnology 43 2 323 343 |
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Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
description |
We conducted multi-proxy geochemical analyses (including measurements of organic carbon, nitrogen and sulphur stable isotope composition, and carbonate carbon and oxygen isotope composition) on a 13.5 m sediment core from Lake Bliden, Denmark, which provide a record of shifting hydrological conditions for the past 6,700 years. The early part of the stratigraphic record (6,700–5,740 cal year BP) was wet, based on d18Ocarb and lithology, and corresponds to the Holocene Thermal Maximum. Shifts in primarily d18Ocarb indicate dry conditions prevailed from 5,740 to 2,800 cal year BP, although this was interrupted by very wet conditions from 5,300 to 5,150, 4,300 to 4,050 and 3,700 to 3,450 cal year BP. The timing of the latter two moist intervals is consistent with other Scandinavian paleoclimatic records. Dry conditions at Lake Bliden between 3,450 and 2,800 cal year BP is consistent with other paleolimnological records from southern Sweden but contrasts with records in central Sweden, possibly suggesting a more northerly trajectory of prevailing westerlies carrying moisture from the North Atlantic at this time. Overall, fluctuating moisture conditions at Lake Bliden appear to be strongly linked to changing sea surface temperatures in the Greenland, Iceland and Norwegian seas. After 2,800 cal year BP, sedimentology, magnetic susceptibility, d13CORG, d13Ccarb and d18Ocarb indicate a major reduction on water level, which caused the depositional setting at the coring site to shift from the profundal to littoral zone. The Roman Warm Period (2,200–1,500 cal year BP) appears dry based on enriched d18Ocarb values. Possible effects of human disturbance in the watershed after 820 cal year BP complicate attempts to interpret the stratigraphic record although tentative interpretation of the d18Ocarb, magnetic susceptibility, d13CORG, d13Ccarb and d18Ocarb records suggest that the Medieval Warm Period was dry and the Little Ice Age was wet. We conducted multi-proxy geochemical analyses (including measurements of organic ... |
format |
Article in Journal/Newspaper |
author |
Olsen, J. Noe-Nygaard, Nanna Wolfe, B. B. |
spellingShingle |
Olsen, J. Noe-Nygaard, Nanna Wolfe, B. B. Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark |
author_facet |
Olsen, J. Noe-Nygaard, Nanna Wolfe, B. B. |
author_sort |
Olsen, J. |
title |
Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark |
title_short |
Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark |
title_full |
Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark |
title_fullStr |
Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark |
title_full_unstemmed |
Mid to Late Holocene climate variability and anthropogenic impacts:multi proxy evidence from Lake Bliden, Denmark |
title_sort |
mid to late holocene climate variability and anthropogenic impacts:multi proxy evidence from lake bliden, denmark |
publishDate |
2010 |
url |
https://curis.ku.dk/portal/da/publications/mid-to-late-holocene-climate-variability-and-anthropogenic-impacts(d9670560-5f0b-11de-a8de-000ea68e967b).html https://doi.org/10.1007/s10933-009-9334-7 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Iceland North Atlantic |
genre_facet |
Greenland Iceland North Atlantic |
op_source |
Olsen , J , Noe-Nygaard , N & Wolfe , B B 2010 , ' Mid to Late Holocene climate variability and anthropogenic impacts : multi proxy evidence from Lake Bliden, Denmark ' , Journal of Paleolimnology , vol. 43 , no. 2 , pp. 323-43 . https://doi.org/10.1007/s10933-009-9334-7 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s10933-009-9334-7 |
container_title |
Journal of Paleolimnology |
container_volume |
43 |
container_issue |
2 |
container_start_page |
323 |
op_container_end_page |
343 |
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1788061804356698112 |