Articles | Volume 4, issue 2
Geochronology, 4, 665–681, 2022
https://doi.org/10.5194/gchron-4-665-2022
Geochronology, 4, 665–681, 2022
https://doi.org/10.5194/gchron-4-665-2022
Research article
22 Nov 2022
Research article | 22 Nov 2022

U and Th content in magnetite and Al spinel obtained by wet chemistry and laser ablation methods: implication for (U–Th) ∕ He thermochronometer

Marianna Corre et al.

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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 egusphere-2022-520', Emily Cooperdock, 09 Sep 2022
  • RC2: 'Comment on egusphere-2022-520', Florian Hofmann, 17 Sep 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (17 Oct 2022) by Daniela Rubatto
AR by Marianna Corre on behalf of the Authors (26 Oct 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (31 Oct 2022) by Daniela Rubatto
ED: Publish subject to technical corrections (08 Nov 2022) by Greg Balco(Editor)
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Short summary
This study is focused on the accurate measurement of U and Th by wet chemistry and laser ablation methods to improve (U–Th)/He dating of magnetite and spinel. The low U–Th content and the lack of specific U–Th standards significantly limit the accuracy of (U–Th)/He dating. Obtained U–Th results on natural and synthetic magnetite and aluminous spinel samples analyzed by wet chemistry methods and LA-ICP-MS sampling have important implications for the (U–Th)/He method and dates interpretation.