Articles | Volume 3, issue 1
https://doi.org/10.5194/gchron-3-199-2021
https://doi.org/10.5194/gchron-3-199-2021
Research article
 | 
19 Apr 2021
Research article |  | 19 Apr 2021

Uranium incorporation in fluorite and exploration of U–Pb dating

Louise Lenoir, Thomas Blaise, Andréa Somogyi, Benjamin Brigaud, Jocelyn Barbarand, Claire Boukari, Julius Nouet, Aurore Brézard-Oudot, and Maurice Pagel

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (05 Feb 2021) by Axel Schmitt
AR by Louise Lenoir on behalf of the Authors (15 Feb 2021)  Author's response   Author's tracked changes   Manuscript 
ED: Publish subject to technical corrections (23 Feb 2021) by Axel Schmitt
ED: Publish subject to technical corrections (25 Feb 2021) by Klaus Mezger (Editor)
AR by Louise Lenoir on behalf of the Authors (04 Mar 2021)  Manuscript 
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Short summary
To explore the U–Pb geochronometer in fluorite, the spatial distribution of uranium and other substituted elements in natural crystals is investigated using induced fission-track and synchrotron radiation X-ray fluorescence mapping. LA-ICP-MS U–Pb dating on four crystals, which preserve micrometer-scale variations in U concentrations, yields identical ages within analytical uncertainty. Our results show that fluorite U–Pb geochronology has potential for dating distinct crystal growth stages.