Description
Macroscopic: Biotite, muscovite schist. Parts of the outcrop are migmatic as a result of intrusion by various phases of the Port Mouton Pluton. Microscopic: Coarse grained biotite, muscovite and quartz. Thin section pictures in XPL unless otherwise noted in the title of the picuture. Thin sections are 3mm across.
Migmatites: They are created when a metamorphic rock spartially melts, and then that melt recrystallizes. This creates a mixture of the unmelted metamorphic sections with the recrystallized section.