1. Rocks The Geologic Dictionary

2. Metamorphic Rocks Rocks Under Stress

3. Metamorphism Recrystalization Solid-State Chemical Reactions No Melting

4. Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism

5. Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism

6. Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism Lithostatic pressure Directional Pressure

7. Directed Pressure Results in: Foliation

8. Foliation Under a Microscope

9. Metamorphic Grade

10. Parent Rock Composition Temperature Pressure Fluids Factors that affect Metamorphism

11. Metamorphic Rocks - Identification

12. Metamorphic Textures (All Crystalline) Foliated Nonfoliated

13. Foliation

14. Composition - Index Minerals

16. Mineral Composition - Geothermometers Rock Forms: 500-550°C Staurolite - Forms 500-750°C Garnet - Forms 450-700°C Muscovite - Forms 300-550°C

17. Foliated Metamorphic Rocks Parent Rock - Shale Slate (Low Grade) Schist (Medium Grade)

18. Foliated Rocks (cont.) Felsic Parent Rock Gneiss (High Grade) Migmatite (Very High Grade)

19. NonFoliated Rocks Parent Rock Limestone Marble (Low to High Grade)

20. Nonfoliated Rocks (cont.) Quartzite Metacoglomerate Parent Rocks Sandstone Conglomerate

21. Metamorphic Rocks - Interpretation

22. Metamorphic Environments = Metamorphic Facies

25. Metamorphic Rock “Translations” Chemical Composition Mineral Composition Foliation Parent Rock (Protolith) T & P of Formation (Depth / Facies)