Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary
Sediment successions from the Kanin Peninsula and Chyoshskaya Bay in northwestern Russia contain information on the marginal behaviour of all major ice sheets centred in Scandinavia, the Barents Sea and the Kara Sea during the Eemian - Weichselian. Extensive luminescence dating of regional lithostra...
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Language: | English |
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2006
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Online Access: | https://pure.au.dk/portal/da/publications/eurasian-icesheet-interaction-in-northwestern-russia-throughout-the-late-quaternary(7bf808ae-78d3-46ef-bfea-f45c6f59187f).html https://doi.org/10.1080/03009480600781891 http://www.scopus.com/inward/record.url?scp=33746499690&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/7bf808ae-78d3-46ef-bfea-f45c6f59187f 2023-05-15T15:23:58+02:00 Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary Kjær, Kurt Larsen, Eiliv Funder, Svend Demidov, Igor Jensen, Maria Håkansson, Lena Murray, Andrew 2006-08-01 https://pure.au.dk/portal/da/publications/eurasian-icesheet-interaction-in-northwestern-russia-throughout-the-late-quaternary(7bf808ae-78d3-46ef-bfea-f45c6f59187f).html https://doi.org/10.1080/03009480600781891 http://www.scopus.com/inward/record.url?scp=33746499690&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Kjær , K , Larsen , E , Funder , S , Demidov , I , Jensen , M , Håkansson , L & Murray , A 2006 , ' Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary ' , Boreas , vol. 35 , no. 3 , pp. 444-475 . https://doi.org/10.1080/03009480600781891 article 2006 ftuniaarhuspubl https://doi.org/10.1080/03009480600781891 2022-01-26T23:49:38Z Sediment successions from the Kanin Peninsula and Chyoshskaya Bay in northwestern Russia contain information on the marginal behaviour of all major ice sheets centred in Scandinavia, the Barents Sea and the Kara Sea during the Eemian - Weichselian. Extensive luminescence dating of regional lithostratigraphical units, supported by biostratigraphical evidence, identifies four major ice advances at 100-90, 70-65, 55-45 and 20-18 kyr ago interbedded with lacustrine, glaciolacustrine and marine sediments. The widespread occurrence of marine tidal sediments deposited c. 65-60 kyr ago allows a stratigraphical division of the Middle Weichselian Barents Sea and Kara Sea ice sheets into two shelf-based glaciations separated by almost complete deglaciation. The first ice dispersal centre was in the Barents Sea and thereafter in the Kara Sea. It is possible to extract both flow patterns from ice marginal landforms inside the southward termination. Accordingly, it is proposed that the Markhida line and its western continuation are asynchronous and originate from two separate glaciations before and after the marine transgression. The marine sedimentation occurred during a eustatic sea-level rise of up to 20 m/1000 yr, i.e. the Mezen Transgression. We speculate that the rapid eustatic sea-level rise triggered a collapse of the Barents Sea Ice Sheet at the MIS (Marine Isotope Stage) 4 to 3 transition. This is motivated by lack of an early marine highstand, the timing of events, and the marginal position of Arkhangelsk relative to open marine conditions. Article in Journal/Newspaper Arkhangelsk Barents Sea Ice Sheet Kanin peninsula Kara Sea Mezen Mezen' Sea ice Aarhus University: Research Barents Sea Kara Sea Markhida ENVELOPE(52.414,52.414,67.115,67.115) Boreas 35 3 444 475 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
Sediment successions from the Kanin Peninsula and Chyoshskaya Bay in northwestern Russia contain information on the marginal behaviour of all major ice sheets centred in Scandinavia, the Barents Sea and the Kara Sea during the Eemian - Weichselian. Extensive luminescence dating of regional lithostratigraphical units, supported by biostratigraphical evidence, identifies four major ice advances at 100-90, 70-65, 55-45 and 20-18 kyr ago interbedded with lacustrine, glaciolacustrine and marine sediments. The widespread occurrence of marine tidal sediments deposited c. 65-60 kyr ago allows a stratigraphical division of the Middle Weichselian Barents Sea and Kara Sea ice sheets into two shelf-based glaciations separated by almost complete deglaciation. The first ice dispersal centre was in the Barents Sea and thereafter in the Kara Sea. It is possible to extract both flow patterns from ice marginal landforms inside the southward termination. Accordingly, it is proposed that the Markhida line and its western continuation are asynchronous and originate from two separate glaciations before and after the marine transgression. The marine sedimentation occurred during a eustatic sea-level rise of up to 20 m/1000 yr, i.e. the Mezen Transgression. We speculate that the rapid eustatic sea-level rise triggered a collapse of the Barents Sea Ice Sheet at the MIS (Marine Isotope Stage) 4 to 3 transition. This is motivated by lack of an early marine highstand, the timing of events, and the marginal position of Arkhangelsk relative to open marine conditions. |
format |
Article in Journal/Newspaper |
author |
Kjær, Kurt Larsen, Eiliv Funder, Svend Demidov, Igor Jensen, Maria Håkansson, Lena Murray, Andrew |
spellingShingle |
Kjær, Kurt Larsen, Eiliv Funder, Svend Demidov, Igor Jensen, Maria Håkansson, Lena Murray, Andrew Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary |
author_facet |
Kjær, Kurt Larsen, Eiliv Funder, Svend Demidov, Igor Jensen, Maria Håkansson, Lena Murray, Andrew |
author_sort |
Kjær, Kurt |
title |
Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary |
title_short |
Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary |
title_full |
Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary |
title_fullStr |
Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary |
title_full_unstemmed |
Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary |
title_sort |
eurasian ice-sheet interaction in northwestern russia throughout the late quaternary |
publishDate |
2006 |
url |
https://pure.au.dk/portal/da/publications/eurasian-icesheet-interaction-in-northwestern-russia-throughout-the-late-quaternary(7bf808ae-78d3-46ef-bfea-f45c6f59187f).html https://doi.org/10.1080/03009480600781891 http://www.scopus.com/inward/record.url?scp=33746499690&partnerID=8YFLogxK |
long_lat |
ENVELOPE(52.414,52.414,67.115,67.115) |
geographic |
Barents Sea Kara Sea Markhida |
geographic_facet |
Barents Sea Kara Sea Markhida |
genre |
Arkhangelsk Barents Sea Ice Sheet Kanin peninsula Kara Sea Mezen Mezen' Sea ice |
genre_facet |
Arkhangelsk Barents Sea Ice Sheet Kanin peninsula Kara Sea Mezen Mezen' Sea ice |
op_source |
Kjær , K , Larsen , E , Funder , S , Demidov , I , Jensen , M , Håkansson , L & Murray , A 2006 , ' Eurasian ice-sheet interaction in northwestern Russia throughout the late quaternary ' , Boreas , vol. 35 , no. 3 , pp. 444-475 . https://doi.org/10.1080/03009480600781891 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1080/03009480600781891 |
container_title |
Boreas |
container_volume |
35 |
container_issue |
3 |
container_start_page |
444 |
op_container_end_page |
475 |
_version_ |
1766354546942017536 |