The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia)
In support of efforts to reconstruct relative sea level ( RSL ), we investigated the utility of foraminifera, diatoms and bulk‐sediment geochemistry (δ 13 C, C:N and parameters measured by Rock‐Eval pyrolysis) as sea‐level indicators in Eurasian sub‐Arctic salt marshes. At three salt marshes (<15...
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crwiley:10.1111/bor.12233 2024-09-15T18:04:06+00:00 The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia) Kemp, Andrew C. Horton, Benjamin P. Nikitina, Daria Vane, Christopher H. Potapova, Marina Weber‐Bruya, Elizabeth Culver, Stephen J. Repkina, Tatyana Hill, David F. National Science Foundation 2017 http://dx.doi.org/10.1111/bor.12233 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12233 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12233 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12233 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/bor.12233 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 46, issue 3, page 562-584 ISSN 0300-9483 1502-3885 journal-article 2017 crwiley https://doi.org/10.1111/bor.12233 2024-09-03T04:24:50Z In support of efforts to reconstruct relative sea level ( RSL ), we investigated the utility of foraminifera, diatoms and bulk‐sediment geochemistry (δ 13 C, C:N and parameters measured by Rock‐Eval pyrolysis) as sea‐level indicators in Eurasian sub‐Arctic salt marshes. At three salt marshes (<15 km apart) in Dvina Bay (White Sea, Russia), we collected surface sediment samples along transects from subtidal to Taiga forest environments. Foraminifera at all sites formed bipartite assemblages, where elevations below mean high higher water ( MHHW ) were dominated by Miliammina spp. and elevations between MHHW and the highest occurrence of foraminifera were dominated by Jadammina macrescens and Balticammina pseudomacrescens . Five high‐diversity groups of diatoms were identified and they displayed pronounced variability amongst the study sites. Bulk‐sediment geochemistry recognized two groups (clastic‐dominated environments below MHHW and organic‐rich environments above MHHW ). As one group included subtidal elevations and the other included supratidal elevations, we conclude that the measured geochemical parameters are not stand‐alone sea‐level indicators. Core JT 2012 captured a regressive sediment succession of clastic, tidal‐flat sediment overlain by salt‐marsh organic silt and freshwater peat. The salt‐marsh sediment accumulated at 2804±52 years before present and preserved foraminifera ( Jadammina macrescens and Balticammina pseudomacrescens ) with good analogy to modern assemblages indicating that RSL was +2.60±0.47 m at this time. Diatoms confirm that marine influence decreased through time, but the lack of analogy between modern and core assemblages limited their utility as sea‐level indicators. Geochemical parameters also indicate a reduction in marine influence through time. We conclude that RSL reconstructions derived from salt‐marsh sediment preserved beneath Eurasian sub‐Arctic peatlands can provide valuable insight into the spatio‐temporal evolution of the Fennoscandian and Eurasian ice sheets. Article in Journal/Newspaper dvina Dvina Bay Fennoscandian Foraminifera* taiga White Sea Wiley Online Library Boreas 46 3 562 584 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
In support of efforts to reconstruct relative sea level ( RSL ), we investigated the utility of foraminifera, diatoms and bulk‐sediment geochemistry (δ 13 C, C:N and parameters measured by Rock‐Eval pyrolysis) as sea‐level indicators in Eurasian sub‐Arctic salt marshes. At three salt marshes (<15 km apart) in Dvina Bay (White Sea, Russia), we collected surface sediment samples along transects from subtidal to Taiga forest environments. Foraminifera at all sites formed bipartite assemblages, where elevations below mean high higher water ( MHHW ) were dominated by Miliammina spp. and elevations between MHHW and the highest occurrence of foraminifera were dominated by Jadammina macrescens and Balticammina pseudomacrescens . Five high‐diversity groups of diatoms were identified and they displayed pronounced variability amongst the study sites. Bulk‐sediment geochemistry recognized two groups (clastic‐dominated environments below MHHW and organic‐rich environments above MHHW ). As one group included subtidal elevations and the other included supratidal elevations, we conclude that the measured geochemical parameters are not stand‐alone sea‐level indicators. Core JT 2012 captured a regressive sediment succession of clastic, tidal‐flat sediment overlain by salt‐marsh organic silt and freshwater peat. The salt‐marsh sediment accumulated at 2804±52 years before present and preserved foraminifera ( Jadammina macrescens and Balticammina pseudomacrescens ) with good analogy to modern assemblages indicating that RSL was +2.60±0.47 m at this time. Diatoms confirm that marine influence decreased through time, but the lack of analogy between modern and core assemblages limited their utility as sea‐level indicators. Geochemical parameters also indicate a reduction in marine influence through time. We conclude that RSL reconstructions derived from salt‐marsh sediment preserved beneath Eurasian sub‐Arctic peatlands can provide valuable insight into the spatio‐temporal evolution of the Fennoscandian and Eurasian ice sheets. |
author2 |
National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Kemp, Andrew C. Horton, Benjamin P. Nikitina, Daria Vane, Christopher H. Potapova, Marina Weber‐Bruya, Elizabeth Culver, Stephen J. Repkina, Tatyana Hill, David F. |
spellingShingle |
Kemp, Andrew C. Horton, Benjamin P. Nikitina, Daria Vane, Christopher H. Potapova, Marina Weber‐Bruya, Elizabeth Culver, Stephen J. Repkina, Tatyana Hill, David F. The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia) |
author_facet |
Kemp, Andrew C. Horton, Benjamin P. Nikitina, Daria Vane, Christopher H. Potapova, Marina Weber‐Bruya, Elizabeth Culver, Stephen J. Repkina, Tatyana Hill, David F. |
author_sort |
Kemp, Andrew C. |
title |
The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia) |
title_short |
The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia) |
title_full |
The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia) |
title_fullStr |
The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia) |
title_full_unstemmed |
The distribution and utility of sea‐level indicators in Eurasian sub‐Arctic salt marshes (White Sea, Russia) |
title_sort |
distribution and utility of sea‐level indicators in eurasian sub‐arctic salt marshes (white sea, russia) |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/bor.12233 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12233 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12233 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/bor.12233 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/bor.12233 |
genre |
dvina Dvina Bay Fennoscandian Foraminifera* taiga White Sea |
genre_facet |
dvina Dvina Bay Fennoscandian Foraminifera* taiga White Sea |
op_source |
Boreas volume 46, issue 3, page 562-584 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/bor.12233 |
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Boreas |
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46 |
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3 |
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562 |
op_container_end_page |
584 |
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1810441598083792896 |