Determination of multiple sulfur isotopes in glasses: A reappraisal of the MORB delta S-34 | INSTITUT DE PHYSIQUE DU GLOBE DE PARIS

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  Determination of multiple sulfur isotopes in glasses: A reappraisal of the MORB delta S-34

Type de publication:

Journal Article

Auteurs:

J. Labidi; Pierre Cartigny; Jean-Louis Birck; N. Assayag; J. J. Bourrand

Source:

Chemical Geology, Volume 334, p.189-198 (2012)

ISBN:

0009-2541

Mots-clés:

UMR 7154 ; Physico-chimie des Fluides Géologiques ; Mid ocean ridge basalts; Sulfur isotopes; Sulfide; Sulfate

Résumé:

We report on improvements to the sulfur extraction method out of silicate glasses by the use of HF + CrCl2 solution for the precise determination of S multi-isotope compositions. This protocol has been designed to be sulfide specific and if needed, can be easily extended to oxidized sulfur. The complete method was validated on a synthetic powder and three laboratory mid-ocean ridge glassy internal standards (CH98 DR12, ED DR46 1-6 and ED DR26 type 1).