Age determination of sediment cores off western Spitsbergen
The Late Weichselian glacial history of the continental shelf off western Spitsbergen is discussed, based on acoustic sub-bottom records and sediment cores. The outer part of Isfjorden and the inner shelf to the west of this fjord are characterized by a thin veneer (10-20 m) of glacigenic sediments...
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1992
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.732390 2023-05-15T16:55:56+02:00 Age determination of sediment cores off western Spitsbergen Svendsen, John-Inge Mangerud, Jan Elverhoi, Anders Solheim, Anders Schüttenhelm, Ruud TE MEDIAN LATITUDE: 78.086667 * MEDIAN LONGITUDE: 13.147500 * SOUTH-BOUND LATITUDE: 78.016667 * WEST-BOUND LONGITUDE: 11.690000 * NORTH-BOUND LATITUDE: 78.276667 * EAST-BOUND LONGITUDE: 15.260000 1992-01-19 application/zip, 6 datasets https://doi.pangaea.de/10.1594/PANGAEA.732390 https://doi.org/10.1594/PANGAEA.732390 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.732390 https://doi.org/10.1594/PANGAEA.732390 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Svendsen, John-Inge; Mangerud, Jan; Elverhoi, Anders; Solheim, Anders; Schüttenhelm, Ruud TE (1992): The Late Weichselian glacial maximum on western Spitsbergen inferred from offshore sediment cores. Marine Geology, 104(1-4), 1-17, https://doi.org/10.1016/0025-3227(92)90081-R 87-137PC 87-138 87-144PC 88-PCM-01 88-PCM-2 88-PCM-3 PC Piston corer Quaternary Environment of the Eurasian North QUEEN QUEEN_Exped Dataset 1992 ftpangaea https://doi.org/10.1594/PANGAEA.732390 https://doi.org/10.1016/0025-3227(92)90081-R 2023-01-20T07:31:37Z The Late Weichselian glacial history of the continental shelf off western Spitsbergen is discussed, based on acoustic sub-bottom records and sediment cores. The outer part of Isfjorden and the inner shelf to the west of this fjord are characterized by a thin veneer (10-20 m) of glacigenic sediments and absence of ice-marginal features. Towards the outer shelf the sediment thickness increases significantly, and exceeds 500 m at the shelf edge. Possible moraine complexes were identified in this outer part. Sediment cores from the inner shelf sampled a firm diamicton, interpreted as till, beneath soft glaciomarine sediments. Radiocarbon dates on shells from the clay resting directly on the till, suggest an age of around 12,500 yrs B.P. for the base of the marine sequence. We argue that grounded ice covered the sites shortly before. In contrast to suggestions that the fjords and coast were partly ice free during the Late Weischselian, we conclude that the ice must have reached out onto the continental shelf. Dataset Isfjord* Isfjorden Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(11.690000,15.260000,78.276667,78.016667) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
87-137PC 87-138 87-144PC 88-PCM-01 88-PCM-2 88-PCM-3 PC Piston corer Quaternary Environment of the Eurasian North QUEEN QUEEN_Exped |
spellingShingle |
87-137PC 87-138 87-144PC 88-PCM-01 88-PCM-2 88-PCM-3 PC Piston corer Quaternary Environment of the Eurasian North QUEEN QUEEN_Exped Svendsen, John-Inge Mangerud, Jan Elverhoi, Anders Solheim, Anders Schüttenhelm, Ruud TE Age determination of sediment cores off western Spitsbergen |
topic_facet |
87-137PC 87-138 87-144PC 88-PCM-01 88-PCM-2 88-PCM-3 PC Piston corer Quaternary Environment of the Eurasian North QUEEN QUEEN_Exped |
description |
The Late Weichselian glacial history of the continental shelf off western Spitsbergen is discussed, based on acoustic sub-bottom records and sediment cores. The outer part of Isfjorden and the inner shelf to the west of this fjord are characterized by a thin veneer (10-20 m) of glacigenic sediments and absence of ice-marginal features. Towards the outer shelf the sediment thickness increases significantly, and exceeds 500 m at the shelf edge. Possible moraine complexes were identified in this outer part. Sediment cores from the inner shelf sampled a firm diamicton, interpreted as till, beneath soft glaciomarine sediments. Radiocarbon dates on shells from the clay resting directly on the till, suggest an age of around 12,500 yrs B.P. for the base of the marine sequence. We argue that grounded ice covered the sites shortly before. In contrast to suggestions that the fjords and coast were partly ice free during the Late Weischselian, we conclude that the ice must have reached out onto the continental shelf. |
format |
Dataset |
author |
Svendsen, John-Inge Mangerud, Jan Elverhoi, Anders Solheim, Anders Schüttenhelm, Ruud TE |
author_facet |
Svendsen, John-Inge Mangerud, Jan Elverhoi, Anders Solheim, Anders Schüttenhelm, Ruud TE |
author_sort |
Svendsen, John-Inge |
title |
Age determination of sediment cores off western Spitsbergen |
title_short |
Age determination of sediment cores off western Spitsbergen |
title_full |
Age determination of sediment cores off western Spitsbergen |
title_fullStr |
Age determination of sediment cores off western Spitsbergen |
title_full_unstemmed |
Age determination of sediment cores off western Spitsbergen |
title_sort |
age determination of sediment cores off western spitsbergen |
publisher |
PANGAEA |
publishDate |
1992 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.732390 https://doi.org/10.1594/PANGAEA.732390 |
op_coverage |
MEDIAN LATITUDE: 78.086667 * MEDIAN LONGITUDE: 13.147500 * SOUTH-BOUND LATITUDE: 78.016667 * WEST-BOUND LONGITUDE: 11.690000 * NORTH-BOUND LATITUDE: 78.276667 * EAST-BOUND LONGITUDE: 15.260000 |
long_lat |
ENVELOPE(11.690000,15.260000,78.276667,78.016667) |
genre |
Isfjord* Isfjorden Spitsbergen |
genre_facet |
Isfjord* Isfjorden Spitsbergen |
op_source |
Supplement to: Svendsen, John-Inge; Mangerud, Jan; Elverhoi, Anders; Solheim, Anders; Schüttenhelm, Ruud TE (1992): The Late Weichselian glacial maximum on western Spitsbergen inferred from offshore sediment cores. Marine Geology, 104(1-4), 1-17, https://doi.org/10.1016/0025-3227(92)90081-R |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.732390 https://doi.org/10.1594/PANGAEA.732390 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.732390 https://doi.org/10.1016/0025-3227(92)90081-R |
_version_ |
1766046974148083712 |