fO2 in LEPR & traceDs - earthchem/PyLEPR GitHub Wiki

The fO2 conditions column may contain modifiers of the form: <= just below, < less than, <-> between, ˜ approximately. Each buffer may be suffixed with a +[number] or -[number], denoting a relative offset in log10 units. Examples: NNO-2<->NNO+2, <QFM.

Abbreviation	Buffer
[number]	log10 oxygen fugacity
CCO	Graphite-carbon monoxide buffer
Cu+Cu2O	Copper-copper oxide buffer
GCH	Graphite-methane buffer
HM	Hematite-magnetite buffer
IW	Iron-wustite buffer
MMO	MnO-Mn3O4 buffer
MW	Magnetite-wustite buffer
NNO	Nickel-nickel oxide buffer
QFM	Quartz-fayalite-magnetite buffer

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