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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Cited articles

Barker, S. L. L., Cox, S. F., Eggins, S. M., and Gagan, M. K.: Microchemical evidence for episodic growth of antitaxial veins during fracture-controlled fluid flow, Earth Planet. Sci. Lett., 250, 331–344, https://doi.org/10.1016/j.epsl.2006.07.051, 2006. 
Barker, S. L. L., Bennett, V. C., Cox, S. F., Norman, M. D., and Gagan, M. K.: Sm-Nd, Sr, C and O isotope systematics in hydrothermal calcite-fluorite veins: Implications for fluid-rock reaction and geochronology, Chem. Geol., 268, 58–66, https://doi.org/10.1016/j.chemgeo.2009.07.009, 2009. 
Barth, S., Oberli, F., and Meier, M.: Th-Pb versus U-Pb isotope systematics in allanite from co-genetic rhyolite and granodiorite: implications for geochronology, Earth Planet. Sci. Lett., 124, 149–159, https://doi.org/10.1016/0012-821X(94)00073-5, 1994. 
Berger, A., Mercolli, I., Herwegh, M., and Gnos, E.: Geological Map of the Aar Massif, Tavetsch and Gotthard Nappes, Geol. spec. Map 1:100000, explanatory notes 129, Federal Office of Topography swisstopo, Bern, Switzerland, 2017. 
Bird, D. K. and Spieler, A. R.: Epidote in Geothermal Systems, Rev. Mineral. Geochem., 56, 235–300, https://doi.org/10.2138/gsrmg.56.1.235, 2004. 
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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).