Articles | Volume 6, issue 1
https://doi.org/10.5194/gchron-6-77-2024
https://doi.org/10.5194/gchron-6-77-2024
Short communication/technical note
 | 
05 Mar 2024
Short communication/technical note |  | 05 Mar 2024

Short communication: Synchrotron-based elemental mapping of single grains to investigate variable infrared-radiofluorescence emissions for luminescence dating

Mariana Sontag-González, Raju Kumar, Jean-Luc Schwenninger, Juergen Thieme, Sebastian Kreutzer, and Marine Frouin

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gchron-2023-14', Svenja Riedesel, 24 Jul 2023
    • AC1: 'Reply on RC1', Mariana Sontag-González, 25 Aug 2023
  • RC2: 'Comment on gchron-2023-14', Anonymous Referee #2, 25 Jul 2023
    • AC2: 'Reply on RC2', Mariana Sontag-González, 25 Aug 2023

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Publish subject to revisions (further review by editor and referees) (01 Sep 2023) by Sumiko Tsukamoto
AR by Mariana Sontag-González on behalf of the Authors (11 Oct 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (17 Oct 2023) by Sumiko Tsukamoto
RR by Svenja Riedesel (20 Oct 2023)
RR by Anonymous Referee #2 (08 Dec 2023)
ED: Publish subject to minor revisions (further review by editor) (10 Dec 2023) by Sumiko Tsukamoto
AR by Mariana Sontag-González on behalf of the Authors (19 Dec 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (21 Dec 2023) by Sumiko Tsukamoto
ED: Publish subject to technical corrections (10 Jan 2024) by Georgina King (Editor)
AR by Mariana Sontag-González on behalf of the Authors (11 Jan 2024)  Manuscript 
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Short summary
This is a preliminary study using a synchrotron light source to generate elemental maps, incorporating oxidation states, with a spatial resolution of <1 µm for individual grains within the K-feldspar density fraction. The elemental fingerprint characterizing grains with a signal suitable for infrared radiofluorescence dating reveals high levels of K, Pb, and Ba coupled with low levels of Fe and Ca. In contrast, grains exhibiting higher proportions of Fe and Ca produce an odd signal shape.