Testing OSL failures against a regional glaciation chronology from southern Scandinavia
Optically stimulated luminescence (OSL) is used extensively for dating Quaternary sediments. In stratigraphic successions, inter-till beds dated by OSL constrain ages of periglacial or interglacial episodes, while till testifies to ice-sheet oscillations. The majority of OSL results from southern Sc...
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ftcopenhagenunip:oai:pure.atira.dk:publications/27caa3d0-a36c-11dd-b5e9-000ea68e967b 2024-01-14T10:07:44+01:00 Testing OSL failures against a regional glaciation chronology from southern Scandinavia Houmark-Nielsen, Michael 2008 https://curis.ku.dk/portal/da/publications/testing-osl-failures-against-a-regional-glaciation-chronology-from-southern-scandinavia(27caa3d0-a36c-11dd-b5e9-000ea68e967b).html https://doi.org/10.1111/j.1502-3885.2008.00053.x http://www3.interscience.wiley.com/cgi-bin/fulltext/121390404/PDFSTART eng eng info:eu-repo/semantics/restrictedAccess Houmark-Nielsen , M 2008 , ' Testing OSL failures against a regional glaciation chronology from southern Scandinavia ' , Boreas , vol. 37 , no. 4 , pp. 660-677 . https://doi.org/10.1111/j.1502-3885.2008.00053.x /dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science glaciation chronology article 2008 ftcopenhagenunip https://doi.org/10.1111/j.1502-3885.2008.00053.x 2023-12-20T23:58:41Z Optically stimulated luminescence (OSL) is used extensively for dating Quaternary sediments. In stratigraphic successions, inter-till beds dated by OSL constrain ages of periglacial or interglacial episodes, while till testifies to ice-sheet oscillations. The majority of OSL results from southern Scandinavia agree with the glaciation chronology predicted by numerical and relative ages, but not all. Overestimation of the expected timing seems to arise from an inherited signal acquired prior to the latest depositional episode. Here, the geological context is examined for solifluction deposits that cap Middle Weichselian periglacial strata and Last Glacial Maximum (LGM) ice proximal deposits showing pre-LGM ages. Suggestions are given as to how the depositional environment may influence the dating results. Even though independent dating anchors the marine Cyprina clay and last interglacial peat bogs to the Eemian interglacial, OSL ages show underestimation by up to 60%. It is discussed whether variations in dose rates after burial could be responsible for this discrepancy. Despite these failures, OSL ranks among the most qualified methods for dating Quaternary sedimentary successions. Article in Journal/Newspaper Ice Sheet University of Copenhagen: Research Boreas 37 4 660 677 |
institution |
Open Polar |
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University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science glaciation chronology |
spellingShingle |
/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science glaciation chronology Houmark-Nielsen, Michael Testing OSL failures against a regional glaciation chronology from southern Scandinavia |
topic_facet |
/dk/atira/pure/core/keywords/TheFacultyOfScience Faculty of Science glaciation chronology |
description |
Optically stimulated luminescence (OSL) is used extensively for dating Quaternary sediments. In stratigraphic successions, inter-till beds dated by OSL constrain ages of periglacial or interglacial episodes, while till testifies to ice-sheet oscillations. The majority of OSL results from southern Scandinavia agree with the glaciation chronology predicted by numerical and relative ages, but not all. Overestimation of the expected timing seems to arise from an inherited signal acquired prior to the latest depositional episode. Here, the geological context is examined for solifluction deposits that cap Middle Weichselian periglacial strata and Last Glacial Maximum (LGM) ice proximal deposits showing pre-LGM ages. Suggestions are given as to how the depositional environment may influence the dating results. Even though independent dating anchors the marine Cyprina clay and last interglacial peat bogs to the Eemian interglacial, OSL ages show underestimation by up to 60%. It is discussed whether variations in dose rates after burial could be responsible for this discrepancy. Despite these failures, OSL ranks among the most qualified methods for dating Quaternary sedimentary successions. |
format |
Article in Journal/Newspaper |
author |
Houmark-Nielsen, Michael |
author_facet |
Houmark-Nielsen, Michael |
author_sort |
Houmark-Nielsen, Michael |
title |
Testing OSL failures against a regional glaciation chronology from southern Scandinavia |
title_short |
Testing OSL failures against a regional glaciation chronology from southern Scandinavia |
title_full |
Testing OSL failures against a regional glaciation chronology from southern Scandinavia |
title_fullStr |
Testing OSL failures against a regional glaciation chronology from southern Scandinavia |
title_full_unstemmed |
Testing OSL failures against a regional glaciation chronology from southern Scandinavia |
title_sort |
testing osl failures against a regional glaciation chronology from southern scandinavia |
publishDate |
2008 |
url |
https://curis.ku.dk/portal/da/publications/testing-osl-failures-against-a-regional-glaciation-chronology-from-southern-scandinavia(27caa3d0-a36c-11dd-b5e9-000ea68e967b).html https://doi.org/10.1111/j.1502-3885.2008.00053.x http://www3.interscience.wiley.com/cgi-bin/fulltext/121390404/PDFSTART |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Houmark-Nielsen , M 2008 , ' Testing OSL failures against a regional glaciation chronology from southern Scandinavia ' , Boreas , vol. 37 , no. 4 , pp. 660-677 . https://doi.org/10.1111/j.1502-3885.2008.00053.x |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1111/j.1502-3885.2008.00053.x |
container_title |
Boreas |
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37 |
container_issue |
4 |
container_start_page |
660 |
op_container_end_page |
677 |
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