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DC Field | Value | Language |
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dc.contributor.author | Tomkins, Matt D. | - |
dc.contributor.author | Dortch, Jason M. | - |
dc.contributor.author | Hughes, Philip D. | - |
dc.contributor.author | Huck, Jonny J. | - |
dc.contributor.author | Stimson, Andrew | - |
dc.contributor.author | Delmas, Magali | - |
dc.contributor.author | Calvet, Marc | - |
dc.contributor.author | Pallàs i Serra, Raimon | - |
dc.date.accessioned | 2019-11-06T11:23:17Z | - |
dc.date.available | 2020-07-31T05:10:30Z | - |
dc.date.issued | 2018-07 | - |
dc.identifier.issn | 0033-5894 | - |
dc.identifier.uri | http://hdl.handle.net/2445/144064 | - |
dc.description.abstract | 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, R 2=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 five 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 online (http://shed.earth) to enable wider application of this method throughout the Pyrenees. | - |
dc.format.extent | 12 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1017/qua.2018.12 | - |
dc.relation.ispartof | Quaternary Research, 2018, vol. 90, num. 1, p. 26-37 | - |
dc.relation.uri | https://doi.org/10.1017/qua.2018.12 | - |
dc.rights | cc-by-nc-nd (c) Elsevier, 2018 | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es | - |
dc.source | Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) | - |
dc.subject.classification | Granit | - |
dc.subject.classification | Pirineus | - |
dc.subject.other | Granite | - |
dc.subject.other | Pyrenees | - |
dc.title | Schmidth Hammer exposure dating (SHED): Rapid age assessment of glacial landforms in the Pyrenees | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 677671 | - |
dc.date.updated | 2019-11-06T11:23:18Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Dinàmica de la Terra i l'Oceà) |
Files in This Item:
File | Description | Size | Format | |
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677671.pdf | 2.28 MB | Adobe PDF | View/Open |
This item is licensed under a Creative Commons License