Figure 4. ACF diagram with the mineral assemblages from different reaction zones (light gray fields) found in Sample 161-976B-76R-1 (Piece 9A, 66-87 cm). Dark gray fields represent chemical analyses of minerals from reaction zones; open circles are chemical analyses from secondary amphibole and relics of garnet. Solid squares represent whole-rock analyses from metapelites and marbles. A = Al2O3 + Fe2O3; C = CaO; F = FeO + MgO; An = anorthite; Czo = clinozoisite; Grs = grossular; Cal = calcite; Grt = garnet; Amph = amphibole; Di = diopside; Hd = hedenbergite; Act = actinolite; Tr = tremolite; Alm = almandine; Prp = pyrope; Bt = biotite; mineral abbreviations are after Kretz (1983).

Figure 4. ACF diagram with the mineral assemblages from different reaction zones (light gray fields) found in Sample 161-976B-76R-1 (Piece 9A, 66-87 cm). Dark gray fields represent chemical analyses of minerals from reaction zones; open circles are chemical analyses from secondary amphibole and relics of garnet. Solid squares represent whole-rock analyses from metapelites and marbles. A = Al₂O₃ + Fe₂O₃; C = CaO; F = FeO + MgO; An = anorthite; Czo = clinozoisite; Grs = grossular; Cal = calcite; Grt = garnet; Amph = amphibole; Di = diopside; Hd = hedenbergite; Act = actinolite; Tr = tremolite; Alm = almandine; Prp = pyrope; Bt = biotite; mineral abbreviations are after Kretz (1983).