Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia
The early Russian researchers working in central Siberia seem to have preferred scenarios in which glaciations, in accordance with the classical glaciological concept, originated in the mountains. However, during the last 30 years or so the interest in the glacial history of the region has concentra...
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ftulundlup:oai:lup.lub.lu.se:a7d0f287-8e7c-4c34-8bdd-a96995b02d10 2023-05-15T16:41:59+02:00 Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia Hjort, Christian Funder, Svend 2008 https://lup.lub.lu.se/record/1253838 https://doi.org/10.1111/j.1751-8369.2008.00068.x eng eng Wiley-Blackwell https://lup.lub.lu.se/record/1253838 http://dx.doi.org/10.1111/j.1751-8369.2008.00068.x wos:000257757800013 scopus:48049089566 Polar Research; 27(2), pp 273-279 (2008) ISSN: 0800-0395 Geology glacial history Siberian geology glacial inception contributiontojournal/article info:eu-repo/semantics/article text 2008 ftulundlup https://doi.org/10.1111/j.1751-8369.2008.00068.x 2023-02-01T23:32:33Z The early Russian researchers working in central Siberia seem to have preferred scenarios in which glaciations, in accordance with the classical glaciological concept, originated in the mountains. However, during the last 30 years or so the interest in the glacial history of the region has concentrated on ice sheets spreading from the Kara Sea shelf. There, they could have originated from ice caps formed on areas that, for eustatic reasons, became dry land during global glacial maximum periods, or from grounded ice shelves. Such ice sheets have been shown to repeatedly inundate much of the Taymyr Peninsula from the north-west. However, work on westernmost Taymyr has now also documented glaciations coming from inland. On at least two occasions, with the latest one dated to the Saale glaciation (marine isotope stage 6 [MIS 6]), warm-based, bedrock-sculpturing glaciers originating in the Byrranga Mountains, and in the hills west of the range, expanded westwards, and at least once did such glaciers, after moving 50-60 km or more over the present land areas, cross today's Kara Sea coastline. The last major glaciation affecting south-western Taymyr did, however, come from the Kara Sea shelf. According to optically stimulated luminescence dates, this was during the Early or Middle Weichselian (MIS 5 or 4), and was most probably not later than 70 Kya. South-western Taymyr was not extensively glaciated during the last global glacial maximum ca. 20 Kya, although local cold-based ice caps may have existed. Article in Journal/Newspaper Ice Shelves Kara Sea Polar Research Taymyr Taymyr Peninsula Siberia Lund University Publications (LUP) Kara Sea Kya ENVELOPE(8.308,8.308,63.772,63.772) Taymyr ENVELOPE(89.987,89.987,68.219,68.219) Polar Research 27 2 273 279 |
institution |
Open Polar |
collection |
Lund University Publications (LUP) |
op_collection_id |
ftulundlup |
language |
English |
topic |
Geology glacial history Siberian geology glacial inception |
spellingShingle |
Geology glacial history Siberian geology glacial inception Hjort, Christian Funder, Svend Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia |
topic_facet |
Geology glacial history Siberian geology glacial inception |
description |
The early Russian researchers working in central Siberia seem to have preferred scenarios in which glaciations, in accordance with the classical glaciological concept, originated in the mountains. However, during the last 30 years or so the interest in the glacial history of the region has concentrated on ice sheets spreading from the Kara Sea shelf. There, they could have originated from ice caps formed on areas that, for eustatic reasons, became dry land during global glacial maximum periods, or from grounded ice shelves. Such ice sheets have been shown to repeatedly inundate much of the Taymyr Peninsula from the north-west. However, work on westernmost Taymyr has now also documented glaciations coming from inland. On at least two occasions, with the latest one dated to the Saale glaciation (marine isotope stage 6 [MIS 6]), warm-based, bedrock-sculpturing glaciers originating in the Byrranga Mountains, and in the hills west of the range, expanded westwards, and at least once did such glaciers, after moving 50-60 km or more over the present land areas, cross today's Kara Sea coastline. The last major glaciation affecting south-western Taymyr did, however, come from the Kara Sea shelf. According to optically stimulated luminescence dates, this was during the Early or Middle Weichselian (MIS 5 or 4), and was most probably not later than 70 Kya. South-western Taymyr was not extensively glaciated during the last global glacial maximum ca. 20 Kya, although local cold-based ice caps may have existed. |
format |
Article in Journal/Newspaper |
author |
Hjort, Christian Funder, Svend |
author_facet |
Hjort, Christian Funder, Svend |
author_sort |
Hjort, Christian |
title |
Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia |
title_short |
Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia |
title_full |
Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia |
title_fullStr |
Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia |
title_full_unstemmed |
Mountain-derived versus shelf-based glaciations on the western Taymyr Peninsula, Siberia |
title_sort |
mountain-derived versus shelf-based glaciations on the western taymyr peninsula, siberia |
publisher |
Wiley-Blackwell |
publishDate |
2008 |
url |
https://lup.lub.lu.se/record/1253838 https://doi.org/10.1111/j.1751-8369.2008.00068.x |
long_lat |
ENVELOPE(8.308,8.308,63.772,63.772) ENVELOPE(89.987,89.987,68.219,68.219) |
geographic |
Kara Sea Kya Taymyr |
geographic_facet |
Kara Sea Kya Taymyr |
genre |
Ice Shelves Kara Sea Polar Research Taymyr Taymyr Peninsula Siberia |
genre_facet |
Ice Shelves Kara Sea Polar Research Taymyr Taymyr Peninsula Siberia |
op_source |
Polar Research; 27(2), pp 273-279 (2008) ISSN: 0800-0395 |
op_relation |
https://lup.lub.lu.se/record/1253838 http://dx.doi.org/10.1111/j.1751-8369.2008.00068.x wos:000257757800013 scopus:48049089566 |
op_doi |
https://doi.org/10.1111/j.1751-8369.2008.00068.x |
container_title |
Polar Research |
container_volume |
27 |
container_issue |
2 |
container_start_page |
273 |
op_container_end_page |
279 |
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1766032457743728640 |