The Last Glacial Maximum on Spitsbergen, Svalbard
Abstract Most scientists have concluded previously that the west coast of Spitsbergen, Svalbard, remained ice-free during the late Weichselian, between 25,000 and 10,000 yr B.P. We conclude that the glaciation was more extensive. Terraces that were postulated to have been ice-free are covered by a t...
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Cambridge University Press (CUP)
1992
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crcambridgeupr:10.1016/0033-5894(92)90027-g 2024-09-15T18:07:57+00:00 The Last Glacial Maximum on Spitsbergen, Svalbard Mangerud, Jan Bolstad, Magne Elgersma, Anne Helliksen, Dag Landvik, Jon Y. Lønne, Ida Lycke, Anne Katrine Salvigsen, Otto Sandahl, Tom Svendsen, John Inge 1992 http://dx.doi.org/10.1016/0033-5894(92)90027-g http://api.elsevier.com/content/article/PII:003358949290027G?httpAccept=text/xml http://api.elsevier.com/content/article/PII:003358949290027G?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400023875 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 38, issue 1, page 1-31 ISSN 0033-5894 1096-0287 journal-article 1992 crcambridgeupr https://doi.org/10.1016/0033-5894(92)90027-g 2024-07-31T04:01:02Z Abstract Most scientists have concluded previously that the west coast of Spitsbergen, Svalbard, remained ice-free during the late Weichselian, between 25,000 and 10,000 yr B.P. We conclude that the glaciation was more extensive. Terraces that were postulated to have been ice-free are covered by a thin, late Weichselian till. Sudden drop in the marine limit and basal radiocarbon dates of raised glaciomarine sediments demonstrates that the glaciers in the main fjords, Isfjorden and Van Mijenfjorden, terminated west (outside) of the fjord mouths. Basal radiocarbon dates from glaciomarine clay above till in cores from the continental shelf west of Spitsbergen yielded ages of about 12,500 yr B.P., from which we conclude that the ice extended to the shelf edge. Based on the extent of amino acid diagenesis in radiocarbon-dated molluscs, the duration of the maximum extension of the late Weichselian glaciation was short, certainly less than 10,000 years. During the ice-free period preceding that glaciation, at least back to 40,000 yr B.P., the glaciers on Svalbard were not significantly larger than at present, as shown by marine deposits close to the glacier snouts. Many radiocarbon dates place deglaciation of the outer coast at about 12,500 yr B.P. At about 10,000 yr B.P., the rest of the archipelago rapidly became ice-free. Article in Journal/Newspaper glacier Isfjord* Isfjord* Isfjorden Isfjorden Svalbard Van Mijenfjorden Spitsbergen Cambridge University Press Quaternary Research 38 1 1 31 |
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English |
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Abstract Most scientists have concluded previously that the west coast of Spitsbergen, Svalbard, remained ice-free during the late Weichselian, between 25,000 and 10,000 yr B.P. We conclude that the glaciation was more extensive. Terraces that were postulated to have been ice-free are covered by a thin, late Weichselian till. Sudden drop in the marine limit and basal radiocarbon dates of raised glaciomarine sediments demonstrates that the glaciers in the main fjords, Isfjorden and Van Mijenfjorden, terminated west (outside) of the fjord mouths. Basal radiocarbon dates from glaciomarine clay above till in cores from the continental shelf west of Spitsbergen yielded ages of about 12,500 yr B.P., from which we conclude that the ice extended to the shelf edge. Based on the extent of amino acid diagenesis in radiocarbon-dated molluscs, the duration of the maximum extension of the late Weichselian glaciation was short, certainly less than 10,000 years. During the ice-free period preceding that glaciation, at least back to 40,000 yr B.P., the glaciers on Svalbard were not significantly larger than at present, as shown by marine deposits close to the glacier snouts. Many radiocarbon dates place deglaciation of the outer coast at about 12,500 yr B.P. At about 10,000 yr B.P., the rest of the archipelago rapidly became ice-free. |
format |
Article in Journal/Newspaper |
author |
Mangerud, Jan Bolstad, Magne Elgersma, Anne Helliksen, Dag Landvik, Jon Y. Lønne, Ida Lycke, Anne Katrine Salvigsen, Otto Sandahl, Tom Svendsen, John Inge |
spellingShingle |
Mangerud, Jan Bolstad, Magne Elgersma, Anne Helliksen, Dag Landvik, Jon Y. Lønne, Ida Lycke, Anne Katrine Salvigsen, Otto Sandahl, Tom Svendsen, John Inge The Last Glacial Maximum on Spitsbergen, Svalbard |
author_facet |
Mangerud, Jan Bolstad, Magne Elgersma, Anne Helliksen, Dag Landvik, Jon Y. Lønne, Ida Lycke, Anne Katrine Salvigsen, Otto Sandahl, Tom Svendsen, John Inge |
author_sort |
Mangerud, Jan |
title |
The Last Glacial Maximum on Spitsbergen, Svalbard |
title_short |
The Last Glacial Maximum on Spitsbergen, Svalbard |
title_full |
The Last Glacial Maximum on Spitsbergen, Svalbard |
title_fullStr |
The Last Glacial Maximum on Spitsbergen, Svalbard |
title_full_unstemmed |
The Last Glacial Maximum on Spitsbergen, Svalbard |
title_sort |
last glacial maximum on spitsbergen, svalbard |
publisher |
Cambridge University Press (CUP) |
publishDate |
1992 |
url |
http://dx.doi.org/10.1016/0033-5894(92)90027-g http://api.elsevier.com/content/article/PII:003358949290027G?httpAccept=text/xml http://api.elsevier.com/content/article/PII:003358949290027G?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400023875 |
genre |
glacier Isfjord* Isfjord* Isfjorden Isfjorden Svalbard Van Mijenfjorden Spitsbergen |
genre_facet |
glacier Isfjord* Isfjord* Isfjorden Isfjorden Svalbard Van Mijenfjorden Spitsbergen |
op_source |
Quaternary Research volume 38, issue 1, page 1-31 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(92)90027-g |
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Quaternary Research |
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38 |
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1 |
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1 |
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31 |
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1810445306837336064 |