Using Io's Sulfur Isotope Cycle to Understand the History of Tidal Heating
Ery C. Hughes,
Katherine de Kleer,
John Eiler
et al.
Abstract:Stable isotope fractionation of sulfur offers a window into Io's tidal heating history, which is difficult to constrain because Io's dynamic atmosphere and high resurfacing rates leave it with a young surface. We constructed a numerical model to describe the fluxes in Io's sulfur cycle using literature constraints on rates and isotopic fractionations of relevant processes. Combining our numerical model with measurements of the 34S/32S ratio in Io's atmosphere, we constrain the rates for the processes that move… Show more
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