data thermo.tdat verify swap O2(g) for O2(aq) swap Calcite for HCO3- swap Hematite for Fe++ pH = 9 8 mg/kg Ca++ 10 mg/kg Na+ 9 mg/kg Cl- 10 mg/kg SO4-- f O2(g) = .2 fix f O2(g) 10 free cm3 Calcite .001 free cm3 Hematite react 1 cm3 Pyrite segregate Calcite oxygen initial = -6, Calcite = +30 sulfur initial = +40, Pyrite = +2 carbon initial = 0, Calcite = -10 go