Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited
The Kapp Ekholm site, in central Spitsbergen, shows alternating units of glaciomarine sandy silt and diamicton representing three glacial cycles and is key in reconstructing the Late Pleistocene glacial history of Svalbard. Part of the site is reinvestigated here by focusing on re‐dating two units (...
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crwiley:10.1111/bor.12191 2024-06-02T08:15:06+00:00 Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited Eccleshall, Sarah V. Hormes, Anne Hovland, Alexander Preusser, Frank Svalbard Science Forum Arctic Field Grant Norwegian Research Council to Sarah Eccleshall and Alexander Hovland 2016 http://dx.doi.org/10.1111/bor.12191 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12191 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12191 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Boreas volume 45, issue 4, page 790-803 ISSN 0300-9483 1502-3885 journal-article 2016 crwiley https://doi.org/10.1111/bor.12191 2024-05-03T10:53:54Z The Kapp Ekholm site, in central Spitsbergen, shows alternating units of glaciomarine sandy silt and diamicton representing three glacial cycles and is key in reconstructing the Late Pleistocene glacial history of Svalbard. Part of the site is reinvestigated here by focusing on re‐dating two units (B and F) interpreted as interglacial/interstadial glaciomarine deposits, in order to constrain the controversial chronology. A combination of Optical Stimulated Luminescence ( OSL ) on quartz, infrared stimulated luminescence with a 50 °C readout temperature ( IRSL 50 ) and post infrared‐infrared stimulated luminescence ( pIR ), both on feldspar, was applied. While Formation B was beyond the dateable range of OSL , IRSL 50 and pIR ages lead to the conclusion that this unit represents the Last Interglacial, Marine Isotope Stage ( MIS ) 5e, and the underlying diamicton the MIS 6 glacial. Formation F yielded ages implying that the formation represents the MIS 5a interstadial and the underlying diamicton is interpreted to represent the MIS 5b stadial. This agrees with conclusions drawn concerning the Pleistocene glaciations elsewhere on Svalbard. Article in Journal/Newspaper Svalbard Spitsbergen Wiley Online Library Kapp Ekholm ENVELOPE(16.533,16.533,78.573,78.573) Svalbard Boreas 45 4 790 803 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
The Kapp Ekholm site, in central Spitsbergen, shows alternating units of glaciomarine sandy silt and diamicton representing three glacial cycles and is key in reconstructing the Late Pleistocene glacial history of Svalbard. Part of the site is reinvestigated here by focusing on re‐dating two units (B and F) interpreted as interglacial/interstadial glaciomarine deposits, in order to constrain the controversial chronology. A combination of Optical Stimulated Luminescence ( OSL ) on quartz, infrared stimulated luminescence with a 50 °C readout temperature ( IRSL 50 ) and post infrared‐infrared stimulated luminescence ( pIR ), both on feldspar, was applied. While Formation B was beyond the dateable range of OSL , IRSL 50 and pIR ages lead to the conclusion that this unit represents the Last Interglacial, Marine Isotope Stage ( MIS ) 5e, and the underlying diamicton the MIS 6 glacial. Formation F yielded ages implying that the formation represents the MIS 5a interstadial and the underlying diamicton is interpreted to represent the MIS 5b stadial. This agrees with conclusions drawn concerning the Pleistocene glaciations elsewhere on Svalbard. |
author2 |
Svalbard Science Forum Arctic Field Grant Norwegian Research Council to Sarah Eccleshall and Alexander Hovland |
format |
Article in Journal/Newspaper |
author |
Eccleshall, Sarah V. Hormes, Anne Hovland, Alexander Preusser, Frank |
spellingShingle |
Eccleshall, Sarah V. Hormes, Anne Hovland, Alexander Preusser, Frank Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited |
author_facet |
Eccleshall, Sarah V. Hormes, Anne Hovland, Alexander Preusser, Frank |
author_sort |
Eccleshall, Sarah V. |
title |
Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited |
title_short |
Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited |
title_full |
Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited |
title_fullStr |
Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited |
title_full_unstemmed |
Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re‐visited |
title_sort |
constraining the chronology of pleistocene glaciations on svalbard: kapp ekholm re‐visited |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/bor.12191 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fbor.12191 https://onlinelibrary.wiley.com/doi/pdf/10.1111/bor.12191 |
long_lat |
ENVELOPE(16.533,16.533,78.573,78.573) |
geographic |
Kapp Ekholm Svalbard |
geographic_facet |
Kapp Ekholm Svalbard |
genre |
Svalbard Spitsbergen |
genre_facet |
Svalbard Spitsbergen |
op_source |
Boreas volume 45, issue 4, page 790-803 ISSN 0300-9483 1502-3885 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/bor.12191 |
container_title |
Boreas |
container_volume |
45 |
container_issue |
4 |
container_start_page |
790 |
op_container_end_page |
803 |
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1800739166096457728 |