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Week 9 - 03 Apr 2019 - Due Monday, 08 April 2019

Key Terms
aureoles index mineral  
contact metamorphism migmatite gneiss
confining pressure nonfoliated marble
differential stresses regional metamorphism phyllite
foliation schistosity quartzite
gneissic texture shield schist
hydrothermal metamorphism slaty cleavage/rock cleavage slate

Read
Ch 8

Homework 8
Ch 8: Give it Some Thought # 1 - 4, 6 - 9

Additional questions:

  1. What is meant by the grade of metamorphism?
  2. In what ways does the parent rock determine the characteristics of the metamorphic rock that formed from it?
  3. How is confining pressure different from differential stress?
  4. Briefly describe three ways in which the mineral grains in a metamorphic rock develop a preferred orientation (that is, foliation).
  5. Slate and phyllite resemble each other. How might you distinguish between them?
  6. Describe the different grades of metamorphism that might be encountered moving west to east from Ohio to the crystalline core of the Appalachians.

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