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Fig. 1


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Maximum fraction of sulfur that can be converted to sulfates through oxidation by radiolytically produced OH and H2O2, for each chondrite type, using an initial grain density of 3.5 g cm−3, assuming W/R values of 1.2 (CI), 0.4 (CI-67P), 0.1–0.6 (CM), and 0.1–0.2 (CV). The W/R = 0.2 case for CV was run assuming the earliest age of accretion of the parent body (CAI + 2.5 Myr) to obtain a maximum production; all other cases assume an accretion at CAI + 3.0 Myr (Doyle et al. 2015; Krot et al. 2015; Desch et al. 2018).

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