Fig. 9

Equilibrium phase diagram based on the bulk chemistry of sample RM-02-04. The dashed and dark grey domains correspond to the stability field of garnet and staurolite respectively for the bulk chemistry of the sample RM-02-04. The crosses correspond to P–T estimates for samples from the garnet, staurolite and kyanite and sillimanite zone of the Miyar Valley after Robyr et al. (2002). The black arrow corresponds to the metamorphic field gradient assuming a lithostatic gradient of 2.7 kbar/km (Steck, 2003). Mineral abbreviations after Kretz (1983)