Extended Data Figure 3: Fastball (Mars) pressure–temperature pseudosection.
From: The divergent fates of primitive hydrospheric water on Earth and Mars
Pressure–temperature pseudosection calculated for the bulk-rock composition of Fastball19. Some small fields are unlabelled for clarity. Bold dashed line labelled ‘Early Martian aerotherm’ represents the pressure–temperature profile calculated via thermal modelling, and is enveloped by short-dashed lines representing upper and lower confidence intervals on these values. Some small fields are not labelled for clarity, and others are numbered and contain assemblages listed to the right of the phase diagram. Phase abbreviations are as listed for Extended Data Fig. 1.
