The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics
The pattern, style, and timing of glaciation of the last Fennoscandian Ice Sheet (FIS) on the Kola Peninsula and Russian Lapland (northwest Arctic Russia) is widely debated. This is due, in part, to the lower-resolution empirical data used in previous investigations. In this paper, we present an ice...
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2022
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Online Access: | https://research.brighton.ac.uk/en/publications/0937725f-2928-45ae-8760-8d0ae0bc5aa7 https://doi.org/10.1016/j.quascirev.2022.107872 |
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ftunbrightoncris:oai:pure.atira.dk:publications/0937725f-2928-45ae-8760-8d0ae0bc5aa7 2023-05-15T14:54:29+02:00 The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics Boyes, Ben Linch, Lorna Pearce, Danni Nash, David 2022-11-15 https://research.brighton.ac.uk/en/publications/0937725f-2928-45ae-8760-8d0ae0bc5aa7 https://doi.org/10.1016/j.quascirev.2022.107872 eng eng info:eu-repo/semantics/openAccess Boyes , B , Linch , L , Pearce , D & Nash , D 2022 , ' The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics ' , Quaternary Science Reviews . https://doi.org/10.1016/j.quascirev.2022.107872 Fennoscandian Ice Sheet Kola Peninsula Russian Lapland Russia Late Weichselian article 2022 ftunbrightoncris https://doi.org/10.1016/j.quascirev.2022.107872 2022-11-21T09:17:34Z The pattern, style, and timing of glaciation of the last Fennoscandian Ice Sheet (FIS) on the Kola Peninsula and Russian Lapland (northwest Arctic Russia) is widely debated. This is due, in part, to the lower-resolution empirical data used in previous investigations. In this paper, we present an ice margin reconstruction, an updated database of previously published numerical ages, and a new time-slice reconstruction. The reconstruction, which is presented across a series of 10 maps, documents the spatial evolution of the ice sheet every 1000 years between 16 and 11 ka, and for four selected time periods back to 29 ka (19-17, 21-20, 25-22, and 29-26 ka). Our reconstruction indicates that the Kola Peninsula and Russian Lapland was probably ice-free prior to the advance of the FIS c. 29 ka. The FIS reached its maximum lateral extent in northwest Arctic Russia c. 19-17 ka, later than many other sectors of the ice sheet. This disparity probably arises as a result of both the topography of Fennoscandia and the position of the Kola Peninsula and Russian Lapland in a precipitation shadow of the Scandinavian Mountains. Thus, FIS glaciation in northwest Arctic Russia was strongly influenced by a fluctuating climate. Most of the FIS in northwest Arctic Russia was terrestrial-based, although marine-terminating margins existed in the fjords of northern Russian Lapland. The retreat of the White Sea lobe was probably not influenced by marine transgression until c. 12 ka because palaeo-sea levels during most of the Late Weichselian were considerably lower than present, and a shallow sill in the Mouth of the White Sea would have inhibited ocean waters entering the White Sea basin. Instances of ice margin readvance during deglaciation are also apparent, including a significant readvance of the White Sea lobe c. 14 ka. This study presents the first reconstruction grounded in high-resolution empirical data for the Kola Peninsula and Russian Lapland, and is presented in a time-slice format that is of critical importance for testing ... Article in Journal/Newspaper Arctic Fennoscandia Fennoscandian Ice Sheet kola peninsula White Sea Lapland The University of Brighton Research Portal Arctic Kola Peninsula White Sea Quaternary Science Reviews 300 107872 |
institution |
Open Polar |
collection |
The University of Brighton Research Portal |
op_collection_id |
ftunbrightoncris |
language |
English |
topic |
Fennoscandian Ice Sheet Kola Peninsula Russian Lapland Russia Late Weichselian |
spellingShingle |
Fennoscandian Ice Sheet Kola Peninsula Russian Lapland Russia Late Weichselian Boyes, Ben Linch, Lorna Pearce, Danni Nash, David The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics |
topic_facet |
Fennoscandian Ice Sheet Kola Peninsula Russian Lapland Russia Late Weichselian |
description |
The pattern, style, and timing of glaciation of the last Fennoscandian Ice Sheet (FIS) on the Kola Peninsula and Russian Lapland (northwest Arctic Russia) is widely debated. This is due, in part, to the lower-resolution empirical data used in previous investigations. In this paper, we present an ice margin reconstruction, an updated database of previously published numerical ages, and a new time-slice reconstruction. The reconstruction, which is presented across a series of 10 maps, documents the spatial evolution of the ice sheet every 1000 years between 16 and 11 ka, and for four selected time periods back to 29 ka (19-17, 21-20, 25-22, and 29-26 ka). Our reconstruction indicates that the Kola Peninsula and Russian Lapland was probably ice-free prior to the advance of the FIS c. 29 ka. The FIS reached its maximum lateral extent in northwest Arctic Russia c. 19-17 ka, later than many other sectors of the ice sheet. This disparity probably arises as a result of both the topography of Fennoscandia and the position of the Kola Peninsula and Russian Lapland in a precipitation shadow of the Scandinavian Mountains. Thus, FIS glaciation in northwest Arctic Russia was strongly influenced by a fluctuating climate. Most of the FIS in northwest Arctic Russia was terrestrial-based, although marine-terminating margins existed in the fjords of northern Russian Lapland. The retreat of the White Sea lobe was probably not influenced by marine transgression until c. 12 ka because palaeo-sea levels during most of the Late Weichselian were considerably lower than present, and a shallow sill in the Mouth of the White Sea would have inhibited ocean waters entering the White Sea basin. Instances of ice margin readvance during deglaciation are also apparent, including a significant readvance of the White Sea lobe c. 14 ka. This study presents the first reconstruction grounded in high-resolution empirical data for the Kola Peninsula and Russian Lapland, and is presented in a time-slice format that is of critical importance for testing ... |
format |
Article in Journal/Newspaper |
author |
Boyes, Ben Linch, Lorna Pearce, Danni Nash, David |
author_facet |
Boyes, Ben Linch, Lorna Pearce, Danni Nash, David |
author_sort |
Boyes, Ben |
title |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics |
title_short |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics |
title_full |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics |
title_fullStr |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics |
title_full_unstemmed |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics |
title_sort |
last fennoscandian ice sheet glaciation on the kola peninsula and russian lapland (part 2): ice sheet margin positions, evolution, and dynamics |
publishDate |
2022 |
url |
https://research.brighton.ac.uk/en/publications/0937725f-2928-45ae-8760-8d0ae0bc5aa7 https://doi.org/10.1016/j.quascirev.2022.107872 |
geographic |
Arctic Kola Peninsula White Sea |
geographic_facet |
Arctic Kola Peninsula White Sea |
genre |
Arctic Fennoscandia Fennoscandian Ice Sheet kola peninsula White Sea Lapland |
genre_facet |
Arctic Fennoscandia Fennoscandian Ice Sheet kola peninsula White Sea Lapland |
op_source |
Boyes , B , Linch , L , Pearce , D & Nash , D 2022 , ' The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 2): Ice sheet margin positions, evolution, and dynamics ' , Quaternary Science Reviews . https://doi.org/10.1016/j.quascirev.2022.107872 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2022.107872 |
container_title |
Quaternary Science Reviews |
container_volume |
300 |
container_start_page |
107872 |
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1766326202409156608 |