Calculate fO2 Buffer

Excel spreadsheet. Tool to calculate oxygen fugacity in terms of the common buffers when logfO2 is known or for translating between fO2 values expressed in terms of various buffers. This is useful for converting calculated oxygen fugacity values into and between delta buffer values (e.g. ΔNNO, ΔQFM…). References: B. R. Frost in Mineralogical Society of America “Reviews in Mineralogy” Volume 25. Version 1.4 19 July 2021 Added equation for Mn-MnO buffer. Also flagged which reactions are calibrated only for 1 bar ( these equations have no pressure dependence).

{"references": ["B. R. Frost in Mineralogical Society of America \"Reviews in Mineralogy\" Volume 25."]}

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