A method for U-Th isotopic analysis of saline and geothermal waters

Christophe Innocent (1)

1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)

A method for U-Th isotopic analysis dedicated to saline and geothermal, including Si-rich waters has been performed. It involves a chemical separation step using a Chelex 100® resin, then a further U and Th purification step involving a specific UTEVA® resin. Both elements are analyzed together on a MC/ICP-MS. This method has been successfully applied to different water samples (Bouillante, French Guadalupe ; Vendée, France ; Iceland geothermal waters).

Domaines: Géochimie; Milieux et Changements globaux

Christophe Innocent. A method for U-Th isotopic analysis of saline and geothermal waters. 9th International Symposium on Applied Isotope Geochemistry, Sep 2011, Tarragone, Spain. pp.1. ⟨hal-00602091⟩