A fine-grained augen orthogneiss, the composition
of sample 03MW0112 is estimated to be plagioclase (55%), K-feldspar
(15%), quartz (20%), biotite (5%), sericite (5%) and trace epidote.
Large (1-3mm), lenticluar plagioclase porphyroclasts are aligned in the
foliation and wrapped by the quartz-biotite matrix. Minor gneissic
banding is present as preferred bands of K-feldspar porphyroclasts
aligned in the foliation.