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Depositional history of the North Taymyr ice-marginal zone, Siberia - a landsystem approach

Alexanderson, Helena LU ; Adrielsson, Lena LU ; Hjort, Christian LU ; Möller, Per LU ; Antonov, O; Eriksson, S and Pavlov, M (2002) In Journal of Quaternary Science 17(4). p.361-382
Abstract
The sediment-landform associations of the northern Taymyr Peninsula in Arctic Siberia tell a tale of ice sheets advancing from the Kara Sea shelf and inundating the peninsula, probably three times during the Weichselian. In each case the ice sheet had a margin frozen to its bed and an interior moving over a deforming bed. The North Taymyr ice-marginal zone (NTZ) comprises ice-marginal and supraglacial landsystems dominated by thrust-block moraines 2-3 km wide and large-scale deformation of sediments and ice. Large areas are still underlain by remnant glacier ice and a supraglacial landscape with numerous ice-walled lakes and kames is forming even today. The proglacial landsystem is characterised by subaqueous (e.g. deltas) or terrestrial... (More)
The sediment-landform associations of the northern Taymyr Peninsula in Arctic Siberia tell a tale of ice sheets advancing from the Kara Sea shelf and inundating the peninsula, probably three times during the Weichselian. In each case the ice sheet had a margin frozen to its bed and an interior moving over a deforming bed. The North Taymyr ice-marginal zone (NTZ) comprises ice-marginal and supraglacial landsystems dominated by thrust-block moraines 2-3 km wide and large-scale deformation of sediments and ice. Large areas are still underlain by remnant glacier ice and a supraglacial landscape with numerous ice-walled lakes and kames is forming even today. The proglacial landsystem is characterised by subaqueous (e.g. deltas) or terrestrial (e.g. sandar) environments, depending on location/altitude and time of formation. Dating results (OSL, C-14) indicate that the NTZ was initiated ca. 80 kyr BP during the retreat of the Early Weichselian ice sheet and that it records the maximum limit of a Middle Weichselian glaciation (ca. 65 kyr BP). During both these events, proglacial lakes were dammed by the ice sheets. Part of the NTZ was occupied by a thin Late Weichselian ice sheet (20-12 kyr BP), resulting in subaerial proglacial drainage. Copyright (C) 2002 John Wiley Sons, Ltd. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
glaciation, ice-marginal zone, landsystem, Weichselian, Siberia
in
Journal of Quaternary Science
volume
17
issue
4
pages
361 - 382
publisher
John Wiley & Sons
external identifiers
  • wos:000177142100007
  • scopus:0036326714
ISSN
1099-1417
DOI
10.1002/jqs.677
language
English
LU publication?
yes
id
188dfd8f-7803-40dd-a736-454c2b141a0b (old id 332267)
date added to LUP
2007-08-06 14:36:58
date last changed
2017-10-01 04:53:57
@article{188dfd8f-7803-40dd-a736-454c2b141a0b,
  abstract     = {The sediment-landform associations of the northern Taymyr Peninsula in Arctic Siberia tell a tale of ice sheets advancing from the Kara Sea shelf and inundating the peninsula, probably three times during the Weichselian. In each case the ice sheet had a margin frozen to its bed and an interior moving over a deforming bed. The North Taymyr ice-marginal zone (NTZ) comprises ice-marginal and supraglacial landsystems dominated by thrust-block moraines 2-3 km wide and large-scale deformation of sediments and ice. Large areas are still underlain by remnant glacier ice and a supraglacial landscape with numerous ice-walled lakes and kames is forming even today. The proglacial landsystem is characterised by subaqueous (e.g. deltas) or terrestrial (e.g. sandar) environments, depending on location/altitude and time of formation. Dating results (OSL, C-14) indicate that the NTZ was initiated ca. 80 kyr BP during the retreat of the Early Weichselian ice sheet and that it records the maximum limit of a Middle Weichselian glaciation (ca. 65 kyr BP). During both these events, proglacial lakes were dammed by the ice sheets. Part of the NTZ was occupied by a thin Late Weichselian ice sheet (20-12 kyr BP), resulting in subaerial proglacial drainage. Copyright (C) 2002 John Wiley Sons, Ltd.},
  author       = {Alexanderson, Helena and Adrielsson, Lena and Hjort, Christian and Möller, Per and Antonov, O and Eriksson, S and Pavlov, M},
  issn         = {1099-1417},
  keyword      = {glaciation,ice-marginal zone,landsystem,Weichselian,Siberia},
  language     = {eng},
  number       = {4},
  pages        = {361--382},
  publisher    = {John Wiley & Sons},
  series       = {Journal of Quaternary Science},
  title        = {Depositional history of the North Taymyr ice-marginal zone, Siberia - a landsystem approach},
  url          = {http://dx.doi.org/10.1002/jqs.677},
  volume       = {17},
  year         = {2002},
}