Objectives for the topic: Metamorphism and Metamorphic Rocks-

Reading: Chapter 7 in Tarbuck and Lutgens

Images to understand: 7.1, 3, 4, 6, 8, 18, 20, 24, 22

After completing this topic, the student will be able to:

1. Describe the changes that occur to rock under metamorphic conditions.
2. Describe those conditions and identify where such conditions exist.
3. Describe the relevance of the composition of the parent rock (AKA protolith) to the metamorphic rock it becomes (provide two examples).
4. Describe the following metamorphic rocks in terms of their protolith and texture:
   • marble
   • slate
   • quartzite
   • anthracite (coal)
   • gneiss
5. Explain the difference between parent rocks in "sensitivity" to metamorphic conditions: what rock types develop changes in texture and mineral content as a result of changes in pressure (depth) and temperature.
6. Distinguish between regional and contact types of metamorphism in terms of where each occur and what rock textures are produced.
7. Explain the relationship between blueschist metamorphic rocks and convergent plate boundaries.
8. List the progression of metamorphic rock types (in order of increasing T&P) starting with a shale composition.
9. Explain the significance of finding schist exposed at the bottom of the Grand Canyon to the geologic story preserved there.
10. Explain the relationship between gems and metamorphism.
11. Define and identify the following textures:
    • cleavage
    • schistosity
    • gneissosity ("gneissic texture")