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Choose Ca ++ as the main species to diagram, then swap in mineral Calcite. Choose SO 4 2 − for x-axis, then swap in a fugacity ratio. Activity or fugacity ratios can be used as axes. H 2 S(g)/CH 4 (g) fugacity ratio is selected. Choose an appropriate range of values.
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Choose Ca++ as the main species to diagram, then swap in mineral Calcite. Choose SO42− for x-axis, then swap in a fugacity ratio.
Activity or fugacity ratios can be used as axes.
H2S(g)/CH4(g) fugacity ratio is selected. Choose an appropriate range of values.
Equilibrium point of the methane souring reaction, calculated as a function of temperature. CH4(g) + Anhydrite ↔ Calcite + H2O + H2S(g)