Fig. 5
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Mineral chemistry results from electron microprobe analyses in micaschist (PG21-04), paragneiss (PG20-01, PG20-02, PG21-28) and diatexite (PG20-04) samples. (A) Feldspar ternary diagram. (B) Fe + Mg versus Si contents in muscovite. (C–D) Biotite Si and Ti a.p.f.u. compositions versus Mg# (100 × Mg/[Mg + Fe2+]). (E) Garnet composition shown as molar proportions of end-member compositions (Alm = almandine, Grs = grossular, Prp = pyrope, Sps = spessartine) across a crystal profile.
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