Fig. 1From: Redox-controlled mechanisms of C and H isotope fractionation between silicate melt and COH fluid in the Earth’s interiorSimplified liquidus diagram showing the enstatite/forsterite liquidus boundary in portion of the system Mg2SiO4–NaAlSiO4–SiO2 in the presence of excess CO2, CH4, and H2O. Also shown (with dashed line) is the boundary under volatile-free conditions (data from Taylor and Green 1987)Back to article page