Metamorphic Rock Textures

These lecture notes discuss metamorphic textures and the mechanisms that create them. A discussion of foliation covers types of stress and the development of foliated rocks from slate to gneiss. Five modes of metamorphic differentiation are introduced including preservation of original compositional layering, transposition of original bedding, solution and re-precipitation, preferential nucleation, and migmatization. There are a number of helpful instructional diagrams included in the notes. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops/petrology03/index.html Educational levels: Undergraduate lower division, Undergraduate upper division