Crustal sequestration of magmatic sulfur dioxide
Volcanism is responsible for copious discharge of sulfur-bearing magmatic gases. A dominant sulfur-bearing species is SO2, yet sulfite (S4+) minerals are rare in geological settings, testifying to the reactivity of SO2. Disproportionation of SO2 to reduced (sulfide), neutral (elemental sulfur), and oxidized (sulfate) species is one expression of this reactivity. Previous studies of SO2 disproportionation reactions have focused on low-pressure, low-temperature conditions involving SO2 gas and...[Show more]
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