Fig. 8

On the left: Garnet end-member isopleths expressed as mole fraction of Mn, Mg, Ca and Fe respectively and calculated with the whole rock composition of the sample RM-02-04. The whole rock composition of the sample RM-02-04 is shown on the top of the figure. The dark grey P–T domains correspond to the garnet stability field with respect to the mole fraction measured in the studied garnet. The bottom diagram represents the plagioclase isopleth expressed as mole fraction of albite. The stability field for staurolite as calculated with the whole rock composition of the sample RM-02-04 is illustrated on the diagram for the albite isopleths (bottom left). The rectangle with dashed line corresponds to the P–T stability field for the chemistry of the garnet in sample RM 02-04. The compositional profile for the major divalent cation are shown in the central column. On the right side: X-ray elemental maps of the hosting garnet. The white line crossing the spessartine elemental map corresponds to the location of the compositional profile for Mn, Mg, Ca and Fe (central column). The location of the compositional profile for Na in plagioclase is illustrated in the albite X-ray map. Mineral abbreviations after Kretz (1983)