Rhodes, E.J. orcid.org/0000-0002-0361-8637 and Leathard, J.A. (2022) MET-IRSL used to track pre-depositional sediment transport history. Quaternary Geochronology, 70. 101294. ISSN 1871-1014
Abstract
This paper explores a series of single grain MET-IRSL (multiple elevated temperature infra-red stimulated luminescence) determinations undertaken in order to assess the potential of this approach, developed over the last decade and previously applied to a range of applications, in determining how eroded material moves through environments. Three different approaches are explored here, namely: i) an assessment of the potential to use the technique for improving the robustness of IRSL or P-IR-IRSL age estimates by identifying only well-bleached grains, ii) a means to characterise patterns of grain transport within a catchment using a newly established parameter, the “burial-bleach ratio”, and iii) a novel proxy that responds to changes in light availability through time, here referred to as palaeophotochronometry. For the second approach that we explore, a direct comparison of the MET-IRSL results from several sites with particle size analysis (PSA) data for the same sediment is included. This comparison highlights striking similarities between dispersal of single grain (SG) MET-IRSL burial-bleach ratio data and PSA distributions for some samples, suggesting that we may be able to place a timescale on the acquisition of this fundamental sedimentary characteristic. Common to these three SG MET-IRSL approaches is the importance of characterising and interpreting the previous bleaching records for individual grains.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2022 Published by Elsevier B.V. This is an author produced version of a paper subsequently published in Quaternary Geochronology. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
Keywords: | MET-IRSL; Photochronometry; Sediment transport; Glacial |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Social Sciences (Sheffield) > Department of Geography (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 17 Jun 2022 06:45 |
Last Modified: | 09 Apr 2023 00:13 |
Status: | Published |
Publisher: | Elsevier BV |
Refereed: | Yes |
Identification Number: | 10.1016/j.quageo.2022.101294 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:188132 |
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