Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia
Quaternary glacial stratigraphy and relative sea-level changes reveal at least two glacial expansions over the Chelyuskin Peninsula, bordering the Kara Sea at about 77°N in the Russian Arctic, as indicated from tills interbedded with marine sediments, exposed in stratigraphic superposition, and from...
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Norwegian Polar Institute
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ftjpolarres:oai:journals.openacademia.net:article/2885 2023-05-15T14:24:18+02:00 Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia Möller, Per Fedorov, Grigorij Pavlov, Maxim Seidenkrantz, Marit-Solveig Sparrenbom, Charlotte 2008-08-01 application/pdf https://polarresearch.net/index.php/polar/article/view/2885 https://doi.org/10.3402/polar.v27i2.6178 eng eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/2885/6512 https://polarresearch.net/index.php/polar/article/view/2885 doi:10.3402/polar.v27i2.6178 Copyright (c) 2018 Polar Research Polar Research; Vol. 27 No. 2 (2008): Special issue: Arctic Palaeoclimate and its Extremes (APEX); 222-248 1751-8369 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2008 ftjpolarres https://doi.org/10.3402/polar.v27i2.6178 2021-11-11T19:13:21Z Quaternary glacial stratigraphy and relative sea-level changes reveal at least two glacial expansions over the Chelyuskin Peninsula, bordering the Kara Sea at about 77°N in the Russian Arctic, as indicated from tills interbedded with marine sediments, exposed in stratigraphic superposition, and from raisedbeach sequences mapped to altitudes of at least up to ca. 80 m a.s.l. Chronological control is provided by accelerator mass spectrometry 14C dating, electron-spin resonance and optically stimulated luminescence geochronology. Major glaciations, followed by deglaciation and marine inundation, occurred during marine oxygen isotope stages 6–5e (MIS 6–5e) and stages MIS 5d–5c. These glacial sediments overlie marine sediments of Pliocene age, which are draped by fluvial sediment of a pre-Saalian age, thereby forming palaeovalley/ basin fills in the post-Cretaceous topography. Till fabrics and glacial tectonics record expansions of local ice caps exclusively, suggesting wet-based ice cap advance, followed by cold-based regional ice-sheet expansion. Local ice caps over highland sites along the perimeter of the shallow Kara Sea, including the Byrranga Mountains and the Severnaya Zemlya archipelago, appear to have repeatedly fostered initiation of a large Kara Sea ice sheet, with the exception of the Last Glacial Maximum (MIS 2), when Kara Sea ice neither impacted the Chelyuskin Peninsula nor Severnaya Zemlya, and barely touched the northern coastal areas of the Taymyr Peninsula. Article in Journal/Newspaper Arctic Arctic Cape Chelyuskin Ice cap Ice Sheet Kara Sea Polar Research Sea ice Severnaya Zemlya Taymyr Taymyr Peninsula Polar Research (E-Journal) Arctic Kara Sea Taymyr ENVELOPE(89.987,89.987,68.219,68.219) Severnaya Zemlya ENVELOPE(98.000,98.000,79.500,79.500) Chelyuskin ENVELOPE(104.091,104.091,77.691,77.691) Polar Research 27 2 |
institution |
Open Polar |
collection |
Polar Research (E-Journal) |
op_collection_id |
ftjpolarres |
language |
English |
description |
Quaternary glacial stratigraphy and relative sea-level changes reveal at least two glacial expansions over the Chelyuskin Peninsula, bordering the Kara Sea at about 77°N in the Russian Arctic, as indicated from tills interbedded with marine sediments, exposed in stratigraphic superposition, and from raisedbeach sequences mapped to altitudes of at least up to ca. 80 m a.s.l. Chronological control is provided by accelerator mass spectrometry 14C dating, electron-spin resonance and optically stimulated luminescence geochronology. Major glaciations, followed by deglaciation and marine inundation, occurred during marine oxygen isotope stages 6–5e (MIS 6–5e) and stages MIS 5d–5c. These glacial sediments overlie marine sediments of Pliocene age, which are draped by fluvial sediment of a pre-Saalian age, thereby forming palaeovalley/ basin fills in the post-Cretaceous topography. Till fabrics and glacial tectonics record expansions of local ice caps exclusively, suggesting wet-based ice cap advance, followed by cold-based regional ice-sheet expansion. Local ice caps over highland sites along the perimeter of the shallow Kara Sea, including the Byrranga Mountains and the Severnaya Zemlya archipelago, appear to have repeatedly fostered initiation of a large Kara Sea ice sheet, with the exception of the Last Glacial Maximum (MIS 2), when Kara Sea ice neither impacted the Chelyuskin Peninsula nor Severnaya Zemlya, and barely touched the northern coastal areas of the Taymyr Peninsula. |
format |
Article in Journal/Newspaper |
author |
Möller, Per Fedorov, Grigorij Pavlov, Maxim Seidenkrantz, Marit-Solveig Sparrenbom, Charlotte |
spellingShingle |
Möller, Per Fedorov, Grigorij Pavlov, Maxim Seidenkrantz, Marit-Solveig Sparrenbom, Charlotte Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia |
author_facet |
Möller, Per Fedorov, Grigorij Pavlov, Maxim Seidenkrantz, Marit-Solveig Sparrenbom, Charlotte |
author_sort |
Möller, Per |
title |
Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia |
title_short |
Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia |
title_full |
Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia |
title_fullStr |
Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia |
title_full_unstemmed |
Glacial and palaeoenvironmental history of the Cape Chelyuskin area, Arctic Russia |
title_sort |
glacial and palaeoenvironmental history of the cape chelyuskin area, arctic russia |
publisher |
Norwegian Polar Institute |
publishDate |
2008 |
url |
https://polarresearch.net/index.php/polar/article/view/2885 https://doi.org/10.3402/polar.v27i2.6178 |
long_lat |
ENVELOPE(89.987,89.987,68.219,68.219) ENVELOPE(98.000,98.000,79.500,79.500) ENVELOPE(104.091,104.091,77.691,77.691) |
geographic |
Arctic Kara Sea Taymyr Severnaya Zemlya Chelyuskin |
geographic_facet |
Arctic Kara Sea Taymyr Severnaya Zemlya Chelyuskin |
genre |
Arctic Arctic Cape Chelyuskin Ice cap Ice Sheet Kara Sea Polar Research Sea ice Severnaya Zemlya Taymyr Taymyr Peninsula |
genre_facet |
Arctic Arctic Cape Chelyuskin Ice cap Ice Sheet Kara Sea Polar Research Sea ice Severnaya Zemlya Taymyr Taymyr Peninsula |
op_source |
Polar Research; Vol. 27 No. 2 (2008): Special issue: Arctic Palaeoclimate and its Extremes (APEX); 222-248 1751-8369 |
op_relation |
https://polarresearch.net/index.php/polar/article/view/2885/6512 https://polarresearch.net/index.php/polar/article/view/2885 doi:10.3402/polar.v27i2.6178 |
op_rights |
Copyright (c) 2018 Polar Research |
op_doi |
https://doi.org/10.3402/polar.v27i2.6178 |
container_title |
Polar Research |
container_volume |
27 |
container_issue |
2 |
_version_ |
1766296732386197504 |