Articles | Volume 3, issue 1
Geochronology, 3, 123–147, 2021
https://doi.org/10.5194/gchron-3-123-2021
Geochronology, 3, 123–147, 2021
https://doi.org/10.5194/gchron-3-123-2021
Research article
09 Mar 2021
Research article | 09 Mar 2021

U − Pb geochronology of epidote by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) as a tool for dating hydrothermal-vein formation

Veronica Peverelli et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (17 Dec 2020) by Axel Schmitt
AR by Veronica Peverelli on behalf of the Authors (17 Jan 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish subject to technical corrections (20 Jan 2021) by Axel Schmitt
ED: Publish subject to technical corrections (20 Jan 2021) by Philippa Ascough(Editor)
AR by Veronica Peverelli on behalf of the Authors (22 Jan 2021)  Author's response    Manuscript
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Short summary
This work presents LA-ICP-MS U–Pb geochronology of epidote in hydrothermal veins. The challenges of epidote dating are addressed, and a protocol is proposed allowing us to obtain epidote U–Pb ages with a precision as good as 5 % in addition to the initial Pb isotopic composition of the epidote-forming fluid. Epidote demonstrates its potential to be used as a U–Pb geochronometer and as a fluid tracer, allowing us to reconstruct the timing of hydrothermal activity and the origin of the fluid(s).