Geochronology of sediment cores from the Vefsnfjord, Norway
The sedimentary environment is a repository and carrier for a variety of pollutants, and sediment transport from land to coastal areas is an important environmental process. In the present study, we use 210Pb/226Ra and 137Cs in sediment cores to assess sediment supply rates at four sites within the...
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Online Access: | https://hdl.handle.net/11250/2823801 https://doi.org/10.1016/j.marpolbul.2021.112683 |
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ftimr:oai:imr.brage.unit.no:11250/2823801 2023-05-15T17:24:37+02:00 Geochronology of sediment cores from the Vefsnfjord, Norway Heldal, Hilde Elise Helvik, Lena Appleby, Peter G. Haanes, Hallvard Volynkin, Andrey Sergeevich Jensen, Henning Lepland, Aivo 2021 application/pdf https://hdl.handle.net/11250/2823801 https://doi.org/10.1016/j.marpolbul.2021.112683 eng eng Marine Pollution Bulletin. 2021, 170:112683 1-10. urn:issn:0025-326X https://hdl.handle.net/11250/2823801 https://doi.org/10.1016/j.marpolbul.2021.112683 cristin:1922912 1-10 170:112683 Marine Pollution Bulletin Peer reviewed Journal article 2021 ftimr https://doi.org/10.1016/j.marpolbul.2021.112683 2022-03-30T22:39:51Z The sedimentary environment is a repository and carrier for a variety of pollutants, and sediment transport from land to coastal areas is an important environmental process. In the present study, we use 210Pb/226Ra and 137Cs in sediment cores to assess sediment supply rates at four sites within the Vefsnfjord in Nordland county, Norway. This area was highly affected by fallout from the Chernobyl accident in 1986 and inventories of 137Cs in the fjord are much higher than in many other Norwegian fjords. Sedimentation rates between 0.042 and 0.25 g cm−2 y−1 (0.060 and 0.38 cm y−1) were determined using a combination of the Constant Rate of Supply (CRS) and Constant Flux:Constant Sedimentation rate (CF:CS) models. Well-defined 137Cs concentration peaks were used as a supplementary tool to the 210Pb dating methods. publishedVersion Article in Journal/Newspaper Nordland Nordland Nordland Institute for Marine Research: Brage IMR Norway Marine Pollution Bulletin 170 112683 |
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Open Polar |
collection |
Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
The sedimentary environment is a repository and carrier for a variety of pollutants, and sediment transport from land to coastal areas is an important environmental process. In the present study, we use 210Pb/226Ra and 137Cs in sediment cores to assess sediment supply rates at four sites within the Vefsnfjord in Nordland county, Norway. This area was highly affected by fallout from the Chernobyl accident in 1986 and inventories of 137Cs in the fjord are much higher than in many other Norwegian fjords. Sedimentation rates between 0.042 and 0.25 g cm−2 y−1 (0.060 and 0.38 cm y−1) were determined using a combination of the Constant Rate of Supply (CRS) and Constant Flux:Constant Sedimentation rate (CF:CS) models. Well-defined 137Cs concentration peaks were used as a supplementary tool to the 210Pb dating methods. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Heldal, Hilde Elise Helvik, Lena Appleby, Peter G. Haanes, Hallvard Volynkin, Andrey Sergeevich Jensen, Henning Lepland, Aivo |
spellingShingle |
Heldal, Hilde Elise Helvik, Lena Appleby, Peter G. Haanes, Hallvard Volynkin, Andrey Sergeevich Jensen, Henning Lepland, Aivo Geochronology of sediment cores from the Vefsnfjord, Norway |
author_facet |
Heldal, Hilde Elise Helvik, Lena Appleby, Peter G. Haanes, Hallvard Volynkin, Andrey Sergeevich Jensen, Henning Lepland, Aivo |
author_sort |
Heldal, Hilde Elise |
title |
Geochronology of sediment cores from the Vefsnfjord, Norway |
title_short |
Geochronology of sediment cores from the Vefsnfjord, Norway |
title_full |
Geochronology of sediment cores from the Vefsnfjord, Norway |
title_fullStr |
Geochronology of sediment cores from the Vefsnfjord, Norway |
title_full_unstemmed |
Geochronology of sediment cores from the Vefsnfjord, Norway |
title_sort |
geochronology of sediment cores from the vefsnfjord, norway |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2823801 https://doi.org/10.1016/j.marpolbul.2021.112683 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Nordland Nordland Nordland |
genre_facet |
Nordland Nordland Nordland |
op_source |
1-10 170:112683 Marine Pollution Bulletin |
op_relation |
Marine Pollution Bulletin. 2021, 170:112683 1-10. urn:issn:0025-326X https://hdl.handle.net/11250/2823801 https://doi.org/10.1016/j.marpolbul.2021.112683 cristin:1922912 |
op_doi |
https://doi.org/10.1016/j.marpolbul.2021.112683 |
container_title |
Marine Pollution Bulletin |
container_volume |
170 |
container_start_page |
112683 |
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1766115715404791808 |