Coarse grained protomylonitic gneiss (fig. 2a) with deformed leucosomes of K-feldspar, plagioclase and quartz in a medium grained biotite and sillimanite matrix with sometimes white mica. The amount of matrix is variable from a maximum of nearly 50% to a minimum of 30% – 40%. S-C fabric and asimmetric and stretched leucosomes are recognizable (fig….
Coarse grained protomylonitic gneiss (fig. 2a) with deformed leucosomes of K-feldspar, plagioclase and quartz in a medium grained biotite and sillimanite matrix with sometimes white mica. The amount of matrix is variable from a maximum of nearly 50% to a minimum of 30% – 40%. S-C fabric and asimmetric and stretched leucosomes are recognizable (fig. 2a), All the kinematic indicators point to a top-to-the SE sense of shear (fig. 2b).