A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence
Holocene oceanography and climate were studied in the continuous marine sediment sequence in a piston core from the high-latitude Malangenfjord, north Norway, using benthic foraminifera and stable isotopes. Radiocarbon dates indicate that the investigated sequence covers the period from c. 8000 to 1...
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Language: | English |
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Online Access: | http://dx.doi.org/10.1191/0959683604hl752rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl752rp |
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crsagepubl:10.1191/0959683604hl752rp 2024-09-15T18:24:49+00:00 A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence Husum, Katrine Hald, Morten 2004 http://dx.doi.org/10.1191/0959683604hl752rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl752rp en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license The Holocene volume 14, issue 6, page 877-887 ISSN 0959-6836 1477-0911 journal-article 2004 crsagepubl https://doi.org/10.1191/0959683604hl752rp 2024-07-29T04:25:57Z Holocene oceanography and climate were studied in the continuous marine sediment sequence in a piston core from the high-latitude Malangenfjord, north Norway, using benthic foraminifera and stable isotopes. Radiocarbon dates indicate that the investigated sequence covers the period from c. 8000 to 1600 cal. BP and has a sedimentation rate of 0.3-12.7 m/1000 years. Bottom-water temperatures reconstructed from benthic foraminiferal stable isotopes in the Malangenfjord show a cooling of c. 3°C ranging from 10°C and reaching c. 7°C at 1600 cal. yr BP which is similar to present bottom-water temperature at the core location. A planktic foraminiferal ° 18 O record was established from c. 6400 to 1600 cal. yr BP generally following the same pattem as the benthic record. This long-term cooling correlates to the decreasing insolation at 70°N following the orbital forcing. The long-term cooling also corresponds well with atmospheric proxy records implying a close ocean-atmosphere coupling. It is also indicated both by marine and atmospheric temperature and precipitation proxy records that the climate was more oceanic during the early Holocene. Several cold events are interpreted as decreased influence of Atlantic Water in the fjord. Article in Journal/Newspaper North Norway SAGE Publications The Holocene 14 6 877 887 |
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Open Polar |
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SAGE Publications |
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crsagepubl |
language |
English |
description |
Holocene oceanography and climate were studied in the continuous marine sediment sequence in a piston core from the high-latitude Malangenfjord, north Norway, using benthic foraminifera and stable isotopes. Radiocarbon dates indicate that the investigated sequence covers the period from c. 8000 to 1600 cal. BP and has a sedimentation rate of 0.3-12.7 m/1000 years. Bottom-water temperatures reconstructed from benthic foraminiferal stable isotopes in the Malangenfjord show a cooling of c. 3°C ranging from 10°C and reaching c. 7°C at 1600 cal. yr BP which is similar to present bottom-water temperature at the core location. A planktic foraminiferal ° 18 O record was established from c. 6400 to 1600 cal. yr BP generally following the same pattem as the benthic record. This long-term cooling correlates to the decreasing insolation at 70°N following the orbital forcing. The long-term cooling also corresponds well with atmospheric proxy records implying a close ocean-atmosphere coupling. It is also indicated both by marine and atmospheric temperature and precipitation proxy records that the climate was more oceanic during the early Holocene. Several cold events are interpreted as decreased influence of Atlantic Water in the fjord. |
format |
Article in Journal/Newspaper |
author |
Husum, Katrine Hald, Morten |
spellingShingle |
Husum, Katrine Hald, Morten A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence |
author_facet |
Husum, Katrine Hald, Morten |
author_sort |
Husum, Katrine |
title |
A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence |
title_short |
A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence |
title_full |
A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence |
title_fullStr |
A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence |
title_full_unstemmed |
A continuous marine record 8000-1600 cal. yr BP from the Malangenfjord, north Norway: foraminiferal and isotopic evidence |
title_sort |
continuous marine record 8000-1600 cal. yr bp from the malangenfjord, north norway: foraminiferal and isotopic evidence |
publisher |
SAGE Publications |
publishDate |
2004 |
url |
http://dx.doi.org/10.1191/0959683604hl752rp http://journals.sagepub.com/doi/pdf/10.1191/0959683604hl752rp |
genre |
North Norway |
genre_facet |
North Norway |
op_source |
The Holocene volume 14, issue 6, page 877-887 ISSN 0959-6836 1477-0911 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1191/0959683604hl752rp |
container_title |
The Holocene |
container_volume |
14 |
container_issue |
6 |
container_start_page |
877 |
op_container_end_page |
887 |
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1810465241957400576 |