Plate 3. Selected key textural relationships in the pelitic and migmatite gneiss. 1. Foliation defined by intensely oriented harmonious fibrolite (S) with augen of magnetite (black) and aggregates of quartz (Q) and K-feldspar (K). Sample 161-976B-95R-2, 2

Plate 3. Selected key textural relationships in the pelitic and migmatite gneiss. 3. Relic garnet porphyroblast (garnet I) largely corroded by biotite (b) and K-feldspar (K). Sample 161-976B-98R-1, 38-40 cm. Plane-polarized light. Scale bar is 200 µm.