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In Part 1 of this activity, students are provided with a map of metamorphic zones, where they are asked to label each zone with the appropriate type of metamorphism (regional or contact) and grade (high, intermediate, low). Helpful mineral assemblage and P-T diagrams are provided (From Earth: Portrait of a Planet 4th edition by Stephan Marshak. Copyright Â 2012, 2008, 2005, 2001 by W.W. Norton & Company, Inc. Used by permission of W. W. Norton & Company, Inc.). In Part 2, students must provide the type of foliation that occurs in each regional metamorphic zone (from chlorite to sillimanite), as well provide two other metamorphic minerals that would be found in each zone, on the basis of a shale protolith. Part 3 asks students to describe the metamorphic history of the area shown on the map, starting from the tectonic setting in which metamorphism would have been initiated to how the rocks got exposed at the surface today. Details such as associated igneous processes, depth of burial, mineral-scale processes etc. must also be included.
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