Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED)
Schmidt Hammer (SH) sampling of 54 10Be dated granite surfaces from the Pyrenees reveals a clear relationship between exposure and weathering through time (n = 52, R2 = 0.96, p < 0.01) and permits the use of the SH as a numerical dating tool. To test this 10Be-SH calibration curve, 100 surfaces w...
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Online Access: | https://research.manchester.ac.uk/en/publications/b5b130eb-9273-4886-8bcb-0f8ea1ca523c https://doi.org/10.1017/qua.2018.12 https://pure.manchester.ac.uk/ws/files/70315048/Tomkinsetal2018_QuaternaryResearch.pdf |
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ftumanchesterpub:oai:pure.atira.dk:publications/b5b130eb-9273-4886-8bcb-0f8ea1ca523c 2023-11-12T04:18:47+01:00 Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) Tomkins, Matthew Dortch, Jason Hughes, Philip Huck, Jonathan Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon 2018-07 application/pdf https://research.manchester.ac.uk/en/publications/b5b130eb-9273-4886-8bcb-0f8ea1ca523c https://doi.org/10.1017/qua.2018.12 https://pure.manchester.ac.uk/ws/files/70315048/Tomkinsetal2018_QuaternaryResearch.pdf eng eng info:eu-repo/semantics/openAccess Tomkins , M , Dortch , J , Hughes , P , Huck , J , Stimson , A , Delmas , M , Calvet , M & Pallas , R 2018 , ' Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) ' , Quaternary Research , vol. 90 , no. 1 , pp. 26-37 . https://doi.org/10.1017/qua.2018.12 article 2018 ftumanchesterpub https://doi.org/10.1017/qua.2018.12 2023-10-30T09:12:58Z Schmidt Hammer (SH) sampling of 54 10Be dated granite surfaces from the Pyrenees reveals a clear relationship between exposure and weathering through time (n = 52, R2 = 0.96, p < 0.01) and permits the use of the SH as a numerical dating tool. To test this 10Be-SH calibration curve, 100 surfaces were sampled from 5 ice-front positions in the Têt catchment, Eastern Pyrenees, with results verified against independent 10Be and 14C ages. Gaussian modelling differentiates Holocene (9.4 ± 0.6 ka), Younger Dryas (12.6 ± 0.9 ka), Oldest Dryas (16.1 ± 0.5 ka), Last Glacial Maximum (LGM: 24.8 ± 0.9 ka) and Würmian Maximum Ice Extent stages (MIE: 40.9 ± 1.1 ka). These data confirm comparable glacier lengths during the LGM and MIE (~300 m difference), in contrast to evidence from the Western Pyrenees (≥15 km), reflecting the relative influence of Atlantic and Mediterranean climates. Moreover, Pyrenean glaciers advanced significantly during the LGM, with a local maximum at ~25 ka, driven by growth of the Laurentide Ice Sheet, southward advection of the polar front and a solar radiation minimum in the Northern Hemisphere. This calibration curve is available at http://shed.earth to enable wider application of this method throughout the Pyrenees. Article in Journal/Newspaper Ice Sheet The University of Manchester: Research Explorer Quaternary Research 90 1 26 37 |
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Open Polar |
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The University of Manchester: Research Explorer |
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ftumanchesterpub |
language |
English |
description |
Schmidt Hammer (SH) sampling of 54 10Be dated granite surfaces from the Pyrenees reveals a clear relationship between exposure and weathering through time (n = 52, R2 = 0.96, p < 0.01) and permits the use of the SH as a numerical dating tool. To test this 10Be-SH calibration curve, 100 surfaces were sampled from 5 ice-front positions in the Têt catchment, Eastern Pyrenees, with results verified against independent 10Be and 14C ages. Gaussian modelling differentiates Holocene (9.4 ± 0.6 ka), Younger Dryas (12.6 ± 0.9 ka), Oldest Dryas (16.1 ± 0.5 ka), Last Glacial Maximum (LGM: 24.8 ± 0.9 ka) and Würmian Maximum Ice Extent stages (MIE: 40.9 ± 1.1 ka). These data confirm comparable glacier lengths during the LGM and MIE (~300 m difference), in contrast to evidence from the Western Pyrenees (≥15 km), reflecting the relative influence of Atlantic and Mediterranean climates. Moreover, Pyrenean glaciers advanced significantly during the LGM, with a local maximum at ~25 ka, driven by growth of the Laurentide Ice Sheet, southward advection of the polar front and a solar radiation minimum in the Northern Hemisphere. This calibration curve is available at http://shed.earth to enable wider application of this method throughout the Pyrenees. |
format |
Article in Journal/Newspaper |
author |
Tomkins, Matthew Dortch, Jason Hughes, Philip Huck, Jonathan Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon |
spellingShingle |
Tomkins, Matthew Dortch, Jason Hughes, Philip Huck, Jonathan Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) |
author_facet |
Tomkins, Matthew Dortch, Jason Hughes, Philip Huck, Jonathan Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon |
author_sort |
Tomkins, Matthew |
title |
Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) |
title_short |
Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) |
title_full |
Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) |
title_fullStr |
Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) |
title_full_unstemmed |
Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) |
title_sort |
rapid age assessment of glacial landforms in the pyrenees using schmidt hammer exposure dating (shed) |
publishDate |
2018 |
url |
https://research.manchester.ac.uk/en/publications/b5b130eb-9273-4886-8bcb-0f8ea1ca523c https://doi.org/10.1017/qua.2018.12 https://pure.manchester.ac.uk/ws/files/70315048/Tomkinsetal2018_QuaternaryResearch.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
Tomkins , M , Dortch , J , Hughes , P , Huck , J , Stimson , A , Delmas , M , Calvet , M & Pallas , R 2018 , ' Rapid age assessment of glacial landforms in the Pyrenees using Schmidt Hammer exposure dating (SHED) ' , Quaternary Research , vol. 90 , no. 1 , pp. 26-37 . https://doi.org/10.1017/qua.2018.12 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1017/qua.2018.12 |
container_title |
Quaternary Research |
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90 |
container_issue |
1 |
container_start_page |
26 |
op_container_end_page |
37 |
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1782335350625009664 |