1. Metamorphic Rock Classification

2. Rock cycle

3. General Features metamorphic means “after change”
metamorphic rocks can come from any other kind of rock (called the “parent rock”)
rocks are changed (undergo metamorphosis) due to heat and pressure

4. Texture for Metamorphic Rocks is Alignment and Size of Crystals
foliated texture = parallel alignment
foliated texture = flat or wavy bands or stripes
can be coarse, medium, or fine
non-foliated texture = not pressed into sheets
also called “massive”

5. Rock Cycle

6. Types of Metamorphism Contact Metamorphism
parent rock came into contact with a heat source
what could heat up surrounding rock?

7. Types of Metamorphism ctd.
Regional Metamorphism
the parent rock changes over a widespread area
what could change a lot of rock at once?

8. Types of Metamorphism ctd.

9. Summary Questions What are heat and pressure changing?
What can texture tell you about a metamorphic rock?