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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ftunivwollongong:oai:ro.uow.edu.au:smhpapers-5163 2023-05-15T18:29:32+02:00 Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re-visited Eccleshall, Sarah Hormes, Anne Hovland, Alexander Preusser, Frank 2016-01-01T08:00:00Z https://ro.uow.edu.au/smhpapers/4139 unknown Research Online https://ro.uow.edu.au/smhpapers/4139 Faculty of Science, Medicine and Health - Papers: part A chronology pleistocene ekholm kapp constraining visited svalbard re glaciations Medicine and Health Sciences Social and Behavioral Sciences article 2016 ftunivwollongong 2020-02-25T11:31:45Z 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 (IRSL50) and post infrared-infrared stimulated luminescence (pIR), both on feldspar, was applied. While Formation B was beyond the dateable range of OSL, IRSL50 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 University of Wollongong, Australia: Research Online Kapp Ekholm ENVELOPE(16.533,16.533,78.573,78.573) Svalbard |
institution |
Open Polar |
collection |
University of Wollongong, Australia: Research Online |
op_collection_id |
ftunivwollongong |
language |
unknown |
topic |
chronology pleistocene ekholm kapp constraining visited svalbard re glaciations Medicine and Health Sciences Social and Behavioral Sciences |
spellingShingle |
chronology pleistocene ekholm kapp constraining visited svalbard re glaciations Medicine and Health Sciences Social and Behavioral Sciences Eccleshall, Sarah Hormes, Anne Hovland, Alexander Preusser, Frank Constraining the chronology of Pleistocene glaciations on Svalbard: Kapp Ekholm re-visited |
topic_facet |
chronology pleistocene ekholm kapp constraining visited svalbard re glaciations Medicine and Health Sciences Social and Behavioral Sciences |
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 (IRSL50) and post infrared-infrared stimulated luminescence (pIR), both on feldspar, was applied. While Formation B was beyond the dateable range of OSL, IRSL50 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. |
format |
Article in Journal/Newspaper |
author |
Eccleshall, Sarah Hormes, Anne Hovland, Alexander Preusser, Frank |
author_facet |
Eccleshall, Sarah Hormes, Anne Hovland, Alexander Preusser, Frank |
author_sort |
Eccleshall, Sarah |
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 |
Research Online |
publishDate |
2016 |
url |
https://ro.uow.edu.au/smhpapers/4139 |
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 |
Faculty of Science, Medicine and Health - Papers: part A |
op_relation |
https://ro.uow.edu.au/smhpapers/4139 |
_version_ |
1766212658566004736 |