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How Multiple Sulfur Isotopes (δ33S, δ34S, δ36S) Help Unravel the Context of Thermochemical Sulfate Reaction during Metamorphic Events: Application to Subducted Evaporites from the French AlpsNormal access

Authors: G. Barré, E. Thomassot, P. Cartigny, R. Michels, L. Truche, P. Strzerzynski, S. Guillot, C. Lorgeoux and N. Assayag
Event name: First EAGE/IFPEN Conference on Sulfur Risk Management in Exploration and Production
Session: Latest Advances in Modelling and Prediction of H2S
Publication date: 18 September 2018
DOI: 10.3997/2214-4609.201802767
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 416.71Kb )
Price: € 20

Analyses of the multiple sulfur isotopes (δ33S, δ34S, δ36S) on the sulfur-rich minerals from the “Nappe des Gypses” formation (western French Alps), allow a better constrain on the TSR process. Small variations on ∆33S values highlight the conditions evolution of the isotopic signatures of the different sulfur pools during the TSR process. The fate of sulfur in petroleum reservoirs could be better understand with systematic analysis of all the sulfur isotopes.

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