The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 1): Ice flow configuration
A detailed reconstruction of palaeo-ice flow configuration is lacking for the Kola Peninsula and Russian Lapland, northwest Arctic Russia. This study presents, for the first time, a 14-stage reconstruction of the last Fennoscandian Ice Sheet (FIS) flow configuration on the Kola Peninsula and Russian...
Published in: | Quaternary Science Reviews |
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Language: | English |
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2022
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Online Access: | https://research.brighton.ac.uk/en/publications/ddf0725f-c4a5-4d4a-b5c7-1b24adc4f501 https://doi.org/10.1016/j.quascirev.2022.107871 |
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ftunbrightoncris:oai:pure.atira.dk:publications/ddf0725f-c4a5-4d4a-b5c7-1b24adc4f501 2023-05-15T15:18:18+02:00 The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 1): Ice flow configuration Boyes, Ben Linch, Lorna Pearce, Danni Nash, David 2022-11-12 https://research.brighton.ac.uk/en/publications/ddf0725f-c4a5-4d4a-b5c7-1b24adc4f501 https://doi.org/10.1016/j.quascirev.2022.107871 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 1): Ice flow configuration ' , Quaternary Science Reviews . https://doi.org/10.1016/j.quascirev.2022.107871 Fennoscandian Ice Sheet Kola Peninsula Russian Lapland Russia Flowsets Subglacial bedforms Late Weichselian article 2022 ftunbrightoncris https://doi.org/10.1016/j.quascirev.2022.107871 2022-11-21T09:17:34Z A detailed reconstruction of palaeo-ice flow configuration is lacking for the Kola Peninsula and Russian Lapland, northwest Arctic Russia. This study presents, for the first time, a 14-stage reconstruction of the last Fennoscandian Ice Sheet (FIS) flow configuration on the Kola Peninsula and Russian Lapland from build-up to complete deglaciation. Flowsets (n = 102) and cross-cutting bedform assemblages identified from a high-resolution subglacial bedform record (subglacial lineations and subglacial ribs) are combined with subglacially streamlined bedrock data to define ice flow patterns, ice divides, ice margins, and glaciation styles of the last glaciation through relative time. The results demonstrate that the FIS flow configuration was not static. The FIS advanced eastwards across the region from Scandinavia, rather than expanding from local upland areas, and established a predominantly cold-based ice mass on the Kola Peninsula with an extensive adjacent warm-based ice lobe in the White Sea. An east-west aligned ice divide was located on the Kola Peninsula and Russian Lapland during the ice sheet build-up stages. However, this divide was short-lived as the White Sea lobe dominated ice flow on the peninsula during the local-Last Glacial Maximum, and ice predominantly flowed across the region from the main ice dispersal zone that was centred over the Gulf of Bothnia during deglaciation. Deglaciation on the peninsula was initially characterised by cold-based ice sheet retreat on the central eastern Kola Peninsula and warm-based ice lobe retreat in the White Sea. Continued deglaciation was characterised by ice sheet thinning, exposing mountain summits as nunataks behind the ice sheet margin, with topography constraining ice flow around upland areas. Ice streams in the region were drivers and consequences of continued ice sheet configuration change throughout glaciation. Four palaeo ice streams – (i) the Imandra Ice Stream; (ii) the Lovozero Ice Stream; (iii) the Kanozero Ice Stream; and (iv) the Kuusamo Ice ... Article in Journal/Newspaper Arctic Fennoscandian Ice Sheet kola peninsula White Sea Lapland The University of Brighton Research Portal Arctic Imandra ENVELOPE(33.260,33.260,67.849,67.849) Kola Peninsula Kuusamo ENVELOPE(29.183,29.183,65.967,65.967) Lovozero ENVELOPE(35.016,35.016,68.006,68.006) White Sea Quaternary Science Reviews 300 107871 |
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 Flowsets Subglacial bedforms Late Weichselian |
spellingShingle |
Fennoscandian Ice Sheet Kola Peninsula Russian Lapland Russia Flowsets Subglacial bedforms Late Weichselian Boyes, Ben Linch, Lorna Pearce, Danni Nash, David The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 1): Ice flow configuration |
topic_facet |
Fennoscandian Ice Sheet Kola Peninsula Russian Lapland Russia Flowsets Subglacial bedforms Late Weichselian |
description |
A detailed reconstruction of palaeo-ice flow configuration is lacking for the Kola Peninsula and Russian Lapland, northwest Arctic Russia. This study presents, for the first time, a 14-stage reconstruction of the last Fennoscandian Ice Sheet (FIS) flow configuration on the Kola Peninsula and Russian Lapland from build-up to complete deglaciation. Flowsets (n = 102) and cross-cutting bedform assemblages identified from a high-resolution subglacial bedform record (subglacial lineations and subglacial ribs) are combined with subglacially streamlined bedrock data to define ice flow patterns, ice divides, ice margins, and glaciation styles of the last glaciation through relative time. The results demonstrate that the FIS flow configuration was not static. The FIS advanced eastwards across the region from Scandinavia, rather than expanding from local upland areas, and established a predominantly cold-based ice mass on the Kola Peninsula with an extensive adjacent warm-based ice lobe in the White Sea. An east-west aligned ice divide was located on the Kola Peninsula and Russian Lapland during the ice sheet build-up stages. However, this divide was short-lived as the White Sea lobe dominated ice flow on the peninsula during the local-Last Glacial Maximum, and ice predominantly flowed across the region from the main ice dispersal zone that was centred over the Gulf of Bothnia during deglaciation. Deglaciation on the peninsula was initially characterised by cold-based ice sheet retreat on the central eastern Kola Peninsula and warm-based ice lobe retreat in the White Sea. Continued deglaciation was characterised by ice sheet thinning, exposing mountain summits as nunataks behind the ice sheet margin, with topography constraining ice flow around upland areas. Ice streams in the region were drivers and consequences of continued ice sheet configuration change throughout glaciation. Four palaeo ice streams – (i) the Imandra Ice Stream; (ii) the Lovozero Ice Stream; (iii) the Kanozero Ice Stream; and (iv) the Kuusamo Ice ... |
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 1): Ice flow configuration |
title_short |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 1): Ice flow configuration |
title_full |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 1): Ice flow configuration |
title_fullStr |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 1): Ice flow configuration |
title_full_unstemmed |
The last Fennoscandian Ice Sheet glaciation on the Kola Peninsula and Russian Lapland (Part 1): Ice flow configuration |
title_sort |
last fennoscandian ice sheet glaciation on the kola peninsula and russian lapland (part 1): ice flow configuration |
publishDate |
2022 |
url |
https://research.brighton.ac.uk/en/publications/ddf0725f-c4a5-4d4a-b5c7-1b24adc4f501 https://doi.org/10.1016/j.quascirev.2022.107871 |
long_lat |
ENVELOPE(33.260,33.260,67.849,67.849) ENVELOPE(29.183,29.183,65.967,65.967) ENVELOPE(35.016,35.016,68.006,68.006) |
geographic |
Arctic Imandra Kola Peninsula Kuusamo Lovozero White Sea |
geographic_facet |
Arctic Imandra Kola Peninsula Kuusamo Lovozero White Sea |
genre |
Arctic Fennoscandian Ice Sheet kola peninsula White Sea Lapland |
genre_facet |
Arctic 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 1): Ice flow configuration ' , Quaternary Science Reviews . https://doi.org/10.1016/j.quascirev.2022.107871 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.quascirev.2022.107871 |
container_title |
Quaternary Science Reviews |
container_volume |
300 |
container_start_page |
107871 |
_version_ |
1766348502221193216 |