Questions from Day 3 (8/31/04):

1. How would you recognize a hornfels in the field?

2. How would you recognize a hornfels with a petrographic microscope?

3. What is the difference between a porphyroclast and a porphyroblast?

4. What is the difference between schistosity and slaty cleavage?

5. What is the sense of shear on thes two porphyroblasts (each one)?

6. List the 6 Barrovian zones in order of increasing grade.

7. Draw a schematic P-T diagram showing the different metamorphic facies.