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(2020) Petrographic and Geochemical Controls on δ34S of Pyrite and the Growth of the TAG Hydrothermal Mound, 26°N Mid Atlantic Ridge

Pujatti S, Klyukin Y, Steele-MacInnis M & Tutolo B


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14e: Plenary Hall, Wednesday 24th June 00:51 - 00:54

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Submitted by Drew Syverson on Tuesday 23rd June 22:10
The model demonstrating d34S versus W/R ratio used equilibrium fractionation estimates between pyrite and H2S. Have you considered the "kinetic" fractionation associated with pyrite formation through the FeS mechanism, as suggested for MOR vent systems, or does the replacement of anhydrite to pyrite not produced such effect with regards to S isotope disequilibrium?

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