Phase Relations of Peralkaline Silicic Magmas and Petrogenetic Implications

The phase relationships of three peralkaline rhyolites from the Kenya Rift have been established at 150 and 50 MPa, at oxygen fugacities of NNO − 1·6 and NNO + 3·6 (log fO2 relative to the Ni–NiO solid buffer), between 800 and 660°C and for melt H2O contents ranging between saturation and nominally ... View More