Rapid age assessment of glacial landforms in the Pyrenees using Schmidt hammer exposure dating (SHED)
International audience Schmidt hammer (SH) sampling of 54 10 Be-dated granite surfaces from the Pyrenees reveals a clear relationship betweenexposure and weathering through time (n=52, R 2 =0.96, P<0.01) and permits the use of the SH as a numerical datingtool. To test this10 Be-SH calibration cur...
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Online Access: | https://hal.science/hal-02148042 https://doi.org/10.1017/qua.2018.12 |
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ftunivperpignan:oai:HAL:hal-02148042v1 2024-02-11T10:04:54+01:00 Rapid age assessment of glacial landforms in the Pyrenees using Schmidt hammer exposure dating (SHED) Tomkins, Matt Dortch, Jason Hughes, Philip Huck, Jonny Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon University of Manchester Manchester University of Kentucky (UK) Université de Perpignan Via Domitia (UPVD) Histoire naturelle de l'Homme préhistorique (HNHP) Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Departament de Geodinamica i Geofısica, Facultat de Geologia, Universitat de Barcelona (UB) 2018-07 https://hal.science/hal-02148042 https://doi.org/10.1017/qua.2018.12 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1017/qua.2018.12 hal-02148042 https://hal.science/hal-02148042 doi:10.1017/qua.2018.12 ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.science/hal-02148042 Quaternary Research, 2018, 90 (1), pp.26-37. ⟨10.1017/qua.2018.12⟩ Geomorphology Glacier chronology Schmidt hammer exposure dating Terrestrial cosmogenic nuclide dating Last glacial maximum Marteau de Schmidt Pyrénées Chronologie de l'Âge de Glace Géomorphologie Datation des nucléides cosmogènes terrestres Dernier maximum glacial [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2018 ftunivperpignan https://doi.org/10.1017/qua.2018.12 2024-01-23T23:44:29Z International audience Schmidt hammer (SH) sampling of 54 10 Be-dated granite surfaces from the Pyrenees reveals a clear relationship betweenexposure and weathering through time (n=52, R 2 =0.96, P<0.01) and permits the use of the SH as a numerical datingtool. To test this10 Be-SH calibration curve, 100 surfaces were sampled from five ice-front positions in the Têt catchment,eastern Pyrenees, with results verified against independent 10 Be and 14 C ages. Gaussian modelling differentiates Holocene(9.4±0.6ka), Younger Dryas (12.6±0.9ka), Oldest Dryas (16.1±0.5ka), last glacial maximum (LGM; 24.8±0.9ka)and Würmian maximum ice extent stages (MIE; 40.9±1.1ka). These data confirm comparable glacier lengths during theLGM and MIE (~300m difference), in contrast to evidence from the western Pyrenees (≥15km), reflecting the relativeinfluence of Atlantic and Mediterranean climates. Moreover, Pyrenean glaciers advanced significantly during the LGM,with a local maximum at ~25ka, 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 online (http://shed.earth) toenable wider application of this method throughout the Pyrenees. Article in Journal/Newspaper Ice Sheet Université de Perpignan: HAL Quaternary Research 90 1 26 37 |
institution |
Open Polar |
collection |
Université de Perpignan: HAL |
op_collection_id |
ftunivperpignan |
language |
English |
topic |
Geomorphology Glacier chronology Schmidt hammer exposure dating Terrestrial cosmogenic nuclide dating Last glacial maximum Marteau de Schmidt Pyrénées Chronologie de l'Âge de Glace Géomorphologie Datation des nucléides cosmogènes terrestres Dernier maximum glacial [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
Geomorphology Glacier chronology Schmidt hammer exposure dating Terrestrial cosmogenic nuclide dating Last glacial maximum Marteau de Schmidt Pyrénées Chronologie de l'Âge de Glace Géomorphologie Datation des nucléides cosmogènes terrestres Dernier maximum glacial [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Tomkins, Matt Dortch, Jason Hughes, Philip Huck, Jonny Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon Rapid age assessment of glacial landforms in the Pyrenees using Schmidt hammer exposure dating (SHED) |
topic_facet |
Geomorphology Glacier chronology Schmidt hammer exposure dating Terrestrial cosmogenic nuclide dating Last glacial maximum Marteau de Schmidt Pyrénées Chronologie de l'Âge de Glace Géomorphologie Datation des nucléides cosmogènes terrestres Dernier maximum glacial [SDU]Sciences of the Universe [physics] [SDU.STU]Sciences of the Universe [physics]/Earth Sciences [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience Schmidt hammer (SH) sampling of 54 10 Be-dated granite surfaces from the Pyrenees reveals a clear relationship betweenexposure and weathering through time (n=52, R 2 =0.96, P<0.01) and permits the use of the SH as a numerical datingtool. To test this10 Be-SH calibration curve, 100 surfaces were sampled from five ice-front positions in the Têt catchment,eastern Pyrenees, with results verified against independent 10 Be and 14 C ages. Gaussian modelling differentiates Holocene(9.4±0.6ka), Younger Dryas (12.6±0.9ka), Oldest Dryas (16.1±0.5ka), last glacial maximum (LGM; 24.8±0.9ka)and Würmian maximum ice extent stages (MIE; 40.9±1.1ka). These data confirm comparable glacier lengths during theLGM and MIE (~300m difference), in contrast to evidence from the western Pyrenees (≥15km), reflecting the relativeinfluence of Atlantic and Mediterranean climates. Moreover, Pyrenean glaciers advanced significantly during the LGM,with a local maximum at ~25ka, 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 online (http://shed.earth) toenable wider application of this method throughout the Pyrenees. |
author2 |
University of Manchester Manchester University of Kentucky (UK) Université de Perpignan Via Domitia (UPVD) Histoire naturelle de l'Homme préhistorique (HNHP) Muséum national d'Histoire naturelle (MNHN)-Université de Perpignan Via Domitia (UPVD)-Centre National de la Recherche Scientifique (CNRS) Departament de Geodinamica i Geofısica, Facultat de Geologia, Universitat de Barcelona (UB) |
format |
Article in Journal/Newspaper |
author |
Tomkins, Matt Dortch, Jason Hughes, Philip Huck, Jonny Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon |
author_facet |
Tomkins, Matt Dortch, Jason Hughes, Philip Huck, Jonny Stimson, Andrew Delmas, Magali Calvet, Marc Pallas, Raimon |
author_sort |
Tomkins, Matt |
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) |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02148042 https://doi.org/10.1017/qua.2018.12 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
ISSN: 0033-5894 EISSN: 1096-0287 Quaternary Research https://hal.science/hal-02148042 Quaternary Research, 2018, 90 (1), pp.26-37. ⟨10.1017/qua.2018.12⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1017/qua.2018.12 hal-02148042 https://hal.science/hal-02148042 doi:10.1017/qua.2018.12 |
op_doi |
https://doi.org/10.1017/qua.2018.12 |
container_title |
Quaternary Research |
container_volume |
90 |
container_issue |
1 |
container_start_page |
26 |
op_container_end_page |
37 |
_version_ |
1790601656595906560 |