Table 1 Variables and conditions used in thermodynamic and mass balance models.
VariableValueLiterature source
H2S0.01–0.1 m(5)
Temperature200°C(5)
NaCl5 wt %(5) and (14)
CO22 mol %(5)
Reactive Fe in wall rock0.5–2 wt %(13); given as siderite in thermodydnamic modeling
pH~5.6(5) and (14); buffered by calcite and siderite dissolution
LogfO2~−45(5); buffered by calcite and siderite dissolution
Au in fluid0.5–2 μg/g(9) and this study
DAu100–6000This study