Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden
Diatom-rich sediment in a small subarctic lake (Lake 850) was investigated in a 9400 cal. yr BP sediment record in order to explore the impact of Holocene climate evolution on silicon cycling. Diatom stable silicon isotopes (δ30SiBSi ) and biogenic silica (BSi) indicate that high BSi concentrations...
Published in: | The Holocene |
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Language: | English |
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SAGE Publications
2021
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Online Access: | https://lup.lub.lu.se/record/b827c0c9-017d-4122-8e35-eaa0ebc30174 https://doi.org/10.1177/09596836211025973 |
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ftulundlup:oai:lup.lub.lu.se:b827c0c9-017d-4122-8e35-eaa0ebc30174 2023-05-15T17:44:40+02:00 Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden Zahajská, Petra Cartier, Rosine Fritz, Sherilyn Claire Stadmark, Johanna Opfergelt, Sophie Yam, Ruth Shemesh, Aldo Conley, Daniel 2021-06-29 https://lup.lub.lu.se/record/b827c0c9-017d-4122-8e35-eaa0ebc30174 https://doi.org/10.1177/09596836211025973 eng eng SAGE Publications https://lup.lub.lu.se/record/b827c0c9-017d-4122-8e35-eaa0ebc30174 http://dx.doi.org/10.1177/09596836211025973 scopus:85108881904 The Holocene; 31(10), pp 1582-1592 (2021) ISSN: 0959-6836 Geosciences Multidisciplinary diatom lake Holocene isotope sediment silicon contributiontojournal/article info:eu-repo/semantics/article text 2021 ftulundlup https://doi.org/10.1177/09596836211025973 2023-02-22T23:27:32Z Diatom-rich sediment in a small subarctic lake (Lake 850) was investigated in a 9400 cal. yr BP sediment record in order to explore the impact of Holocene climate evolution on silicon cycling. Diatom stable silicon isotopes (δ30SiBSi ) and biogenic silica (BSi) indicate that high BSi concentrations in sediment throughout the Holocene are associated with a lighter Si isotope source of dissolved silica (DSi), such as groundwater or freshly weathered primary minerals. Furthermore, higher BSi concentrations were favoured during the mid-Holocene by low detrital inputs and possibly a longer ice-free period allowing for more diatom production to occur. The diatom δ30SiBSi signature shows a link to changes in regional climate and is influenced by length of diatom growth period and hydrological fluctuations. Lighter Si isotopic values occur during the mid Holocene, when climate is inferred to be more continental and drier, with pronounced seasonality. In contrast, a heavier Si isotopic signature is observed in the early and late Holocene, when oceanic influences are thought to be stronger and the climate wetter. The δ30SiBSi values have generally lighter signatures as compared with other studies, which supports a light DSi source. Article in Journal/Newspaper Northern Sweden Subarctic Lund University Publications (LUP) The Holocene 31 10 1582 1592 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geosciences Multidisciplinary diatom lake Holocene isotope sediment silicon |
spellingShingle |
Geosciences Multidisciplinary diatom lake Holocene isotope sediment silicon Zahajská, Petra Cartier, Rosine Fritz, Sherilyn Claire Stadmark, Johanna Opfergelt, Sophie Yam, Ruth Shemesh, Aldo Conley, Daniel Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden |
topic_facet |
Geosciences Multidisciplinary diatom lake Holocene isotope sediment silicon |
description |
Diatom-rich sediment in a small subarctic lake (Lake 850) was investigated in a 9400 cal. yr BP sediment record in order to explore the impact of Holocene climate evolution on silicon cycling. Diatom stable silicon isotopes (δ30SiBSi ) and biogenic silica (BSi) indicate that high BSi concentrations in sediment throughout the Holocene are associated with a lighter Si isotope source of dissolved silica (DSi), such as groundwater or freshly weathered primary minerals. Furthermore, higher BSi concentrations were favoured during the mid-Holocene by low detrital inputs and possibly a longer ice-free period allowing for more diatom production to occur. The diatom δ30SiBSi signature shows a link to changes in regional climate and is influenced by length of diatom growth period and hydrological fluctuations. Lighter Si isotopic values occur during the mid Holocene, when climate is inferred to be more continental and drier, with pronounced seasonality. In contrast, a heavier Si isotopic signature is observed in the early and late Holocene, when oceanic influences are thought to be stronger and the climate wetter. The δ30SiBSi values have generally lighter signatures as compared with other studies, which supports a light DSi source. |
format |
Article in Journal/Newspaper |
author |
Zahajská, Petra Cartier, Rosine Fritz, Sherilyn Claire Stadmark, Johanna Opfergelt, Sophie Yam, Ruth Shemesh, Aldo Conley, Daniel |
author_facet |
Zahajská, Petra Cartier, Rosine Fritz, Sherilyn Claire Stadmark, Johanna Opfergelt, Sophie Yam, Ruth Shemesh, Aldo Conley, Daniel |
author_sort |
Zahajská, Petra |
title |
Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden |
title_short |
Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden |
title_full |
Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden |
title_fullStr |
Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden |
title_full_unstemmed |
Impact of Holocene climate change on silicon cycling in Lake 850, Northern Sweden |
title_sort |
impact of holocene climate change on silicon cycling in lake 850, northern sweden |
publisher |
SAGE Publications |
publishDate |
2021 |
url |
https://lup.lub.lu.se/record/b827c0c9-017d-4122-8e35-eaa0ebc30174 https://doi.org/10.1177/09596836211025973 |
genre |
Northern Sweden Subarctic |
genre_facet |
Northern Sweden Subarctic |
op_source |
The Holocene; 31(10), pp 1582-1592 (2021) ISSN: 0959-6836 |
op_relation |
https://lup.lub.lu.se/record/b827c0c9-017d-4122-8e35-eaa0ebc30174 http://dx.doi.org/10.1177/09596836211025973 scopus:85108881904 |
op_doi |
https://doi.org/10.1177/09596836211025973 |
container_title |
The Holocene |
container_volume |
31 |
container_issue |
10 |
container_start_page |
1582 |
op_container_end_page |
1592 |
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1766146934702080000 |