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 EemianWeichselian. Extensive luminescence dating of regional lithostratig...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.568.8250 2023-05-15T15:23:56+02:00 Eurasian ice-sheet interaction in northwestern Russia throughout the late Quaternary Kurt H. Kjær Eiliv Larsen Svend Funder Igor N. Demidov Maria Jensen Lena Håkansson Andrew Murray The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.8250 en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.8250 Metadata may be used without restrictions as long as the oai identifier remains attached to it. https://notendur.hi.is/~oi/AG-326 2006 readings/Scandinavia and White Sea area/Kjaer et al 2006.pdf text 2006 ftciteseerx 2016-01-08T12:23:29Z 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 EemianWeichselian. Extensive luminescence dating of regional lithostratigraphical units, supported by biostratigraphical evidence, identifies four major ice advances at 10090, 7065, 5545 and 2018 kyr ago interbedded with lacustrine, glaciolacustrine and marine sediments. The widespread occurrence of marine tidal sediments deposited c. 6560 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 Text Arkhangelsk Barents Sea Ice Sheet Kanin peninsula Kara Sea Mezen Mezen' Sea ice Unknown Barents Sea Kara Sea Markhida ENVELOPE(52.414,52.414,67.115,67.115) |
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Open Polar |
collection |
Unknown |
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ftciteseerx |
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 EemianWeichselian. Extensive luminescence dating of regional lithostratigraphical units, supported by biostratigraphical evidence, identifies four major ice advances at 10090, 7065, 5545 and 2018 kyr ago interbedded with lacustrine, glaciolacustrine and marine sediments. The widespread occurrence of marine tidal sediments deposited c. 6560 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 |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Kurt H. Kjær Eiliv Larsen Svend Funder Igor N. Demidov Maria Jensen Lena Håkansson Andrew Murray |
spellingShingle |
Kurt H. Kjær Eiliv Larsen Svend Funder Igor N. Demidov Maria Jensen Lena Håkansson Andrew Murray Eurasian ice-sheet interaction in northwestern Russia throughout the late Quaternary |
author_facet |
Kurt H. Kjær Eiliv Larsen Svend Funder Igor N. Demidov Maria Jensen Lena Håkansson Andrew Murray |
author_sort |
Kurt H. Kjær |
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 |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.8250 |
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 |
https://notendur.hi.is/~oi/AG-326 2006 readings/Scandinavia and White Sea area/Kjaer et al 2006.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.568.8250 |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766354526124638208 |