Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard
Sub‐bottom sediment profiles and sediment cores show that the lacustrine sediments in lake Linnevatnet are underlain by marine sediments and a basal till that mantles the bedrock. The till was probably deposited by the glacier that during the Late Weichselian glacial maximum removed all pre‐existing...
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crwiley:10.1111/j.1502-3885.1990.tb00450.x 2024-09-15T18:07:57+00:00 Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard Mangerund, Jan Svendsen, John Inge 1990 http://dx.doi.org/10.1111/j.1502-3885.1990.tb00450.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1990.tb00450.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1990.tb00450.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 19, issue 3, page 249-272 ISSN 0300-9483 1502-3885 journal-article 1990 crwiley https://doi.org/10.1111/j.1502-3885.1990.tb00450.x 2024-08-22T04:16:57Z Sub‐bottom sediment profiles and sediment cores show that the lacustrine sediments in lake Linnevatnet are underlain by marine sediments and a basal till that mantles the bedrock. The till was probably deposited by the glacier that during the Late Weichselian glacial maximum removed all pre‐existing sediments from the basin. The cores were collected in closed basins, where continuous deposition is expected. The marine sediment in the studied cores is up to 8 m thick and consists of bioturbated clay and silt. Radiocarbon dates on shells from the base of the marine sequence suggest that glacial retreat from the lake basin occurred around 12,500BP. This is more than a thousand years older than basal shell dates from raised marine sediments on the slopes above the lake. Typical ice proximal litbofacies were not identified in the cores. stratigraphic record indicates both a rapid glacial retreat and that no younger glacial re‐advances occurred. During the Younger Dryas local glaciers on western Svalbard were smaller than during the Little Ice Age. This is in sharp contrast to western Europe, where Younger Dryas glaciers were much larger than those the Little Ice Age. Article in Journal/Newspaper glacier Svalbard Spitsbergen Wiley Online Library Boreas 19 3 249 272 |
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Open Polar |
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Wiley Online Library |
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crwiley |
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English |
description |
Sub‐bottom sediment profiles and sediment cores show that the lacustrine sediments in lake Linnevatnet are underlain by marine sediments and a basal till that mantles the bedrock. The till was probably deposited by the glacier that during the Late Weichselian glacial maximum removed all pre‐existing sediments from the basin. The cores were collected in closed basins, where continuous deposition is expected. The marine sediment in the studied cores is up to 8 m thick and consists of bioturbated clay and silt. Radiocarbon dates on shells from the base of the marine sequence suggest that glacial retreat from the lake basin occurred around 12,500BP. This is more than a thousand years older than basal shell dates from raised marine sediments on the slopes above the lake. Typical ice proximal litbofacies were not identified in the cores. stratigraphic record indicates both a rapid glacial retreat and that no younger glacial re‐advances occurred. During the Younger Dryas local glaciers on western Svalbard were smaller than during the Little Ice Age. This is in sharp contrast to western Europe, where Younger Dryas glaciers were much larger than those the Little Ice Age. |
format |
Article in Journal/Newspaper |
author |
Mangerund, Jan Svendsen, John Inge |
spellingShingle |
Mangerund, Jan Svendsen, John Inge Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard |
author_facet |
Mangerund, Jan Svendsen, John Inge |
author_sort |
Mangerund, Jan |
title |
Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard |
title_short |
Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard |
title_full |
Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard |
title_fullStr |
Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard |
title_full_unstemmed |
Deglaciation chronology inferred from marine sediments in a proglacial lake basin, western Spitsbergen, Svalbard |
title_sort |
deglaciation chronology inferred from marine sediments in a proglacial lake basin, western spitsbergen, svalbard |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1111/j.1502-3885.1990.tb00450.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1502-3885.1990.tb00450.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1502-3885.1990.tb00450.x |
genre |
glacier Svalbard Spitsbergen |
genre_facet |
glacier Svalbard Spitsbergen |
op_source |
Boreas volume 19, issue 3, page 249-272 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1502-3885.1990.tb00450.x |
container_title |
Boreas |
container_volume |
19 |
container_issue |
3 |
container_start_page |
249 |
op_container_end_page |
272 |
_version_ |
1810445315611820032 |