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Eurasian ice-sheet interaction in northwestern Russia throughout the late Quaternary

Kjaer, Kurt LU ; Larsen, Eiliv ; Funder, Svend ; Demidov, Igor ; Jensen, Maria ; Håkansson, Lena LU and Murray, Andrew (2006) In Boreas 35(3). p.444-475
Abstract
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... (More)
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. (Less)
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Boreas
volume
35
issue
3
pages
444 - 475
publisher
John Wiley and Sons
external identifiers
  • wos:000239192000004
  • scopus:33746499690
ISSN
1502-3885
DOI
10.1080/03009480600781891
language
English
LU publication?
yes
id
1c5651e3-58de-44d8-9037-04d2605138b5 (old id 401427)
date added to LUP
2016-04-01 11:54:46
date last changed
2021-10-06 03:42:08
@article{1c5651e3-58de-44d8-9037-04d2605138b5,
  abstract     = {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.},
  author       = {Kjaer, Kurt and Larsen, Eiliv and Funder, Svend and Demidov, Igor and Jensen, Maria and Håkansson, Lena and Murray, Andrew},
  issn         = {1502-3885},
  language     = {eng},
  number       = {3},
  pages        = {444--475},
  publisher    = {John Wiley and Sons},
  series       = {Boreas},
  title        = {Eurasian ice-sheet interaction in northwestern Russia throughout the late Quaternary},
  url          = {http://dx.doi.org/10.1080/03009480600781891},
  doi          = {10.1080/03009480600781891},
  volume       = {35},
  year         = {2006},
}