A. Metamorphism and Metamorphic Rocks

B. Geologic Time and Dating: Study Questions

1. What are the two main metamorphic rock categories?

2. You should be able to list the sequence of foliated metamorphic rocks and be able to relate these to changes in pressure and temperature.

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3. How is the absolute age of a mineral, such as zircon, determined?

4. What is a half life of a radioactive element?