Extended Data Fig. 8: T–H2O diagram for the median-enriched Archaean basalt.
From: Earth’s early continental crust formed from wet and oxidizing arc magmas
This diagram is calculated at 1.1 GPa, at which the solidus temperature is the lowest (about 637 °C). The thick red line shows the solidus, whereas the dashed red line corresponds to fluid saturation. The dotted black line shows the H2O content used in the modelling in Fig. 3b,d, which slightly oversaturates the solidus at the lowest temperature. The dashed white lines show the melt isopleths in wt%.
