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
Part of the Cutting Edge collection. The NAGT/DLESE On the Cutting Edge project helps geoscience faculty stay up-to-date with both geoscience research and teaching methods.
Subject: Geoscience:Geology:Igneous and Metamorphic Petrology:Metamorphic Processes Resource Type: Audio/Visual:Images/Illustrations, Scientific Resources, Overview/Reference Work, Course Information:Course Site, Course Site:Course Notes Grade Level: College Upper (15-16), College Lower (13-14) Classes of Earth Materials: Metamorphic Rocks Solid Earth Processes: Metamorphism Theme: Teach the Earth:Course Topics:Petrology