1. What is a metamorphic rock? How is it formed? Metamorphic Rock Chapter 6, Section 3 http://earthref.org/SCC Scripps Classroom Connection

2. How to make a metamorphic rock Take any kind of rock  Cook at ______ to ~______°C  Above ~650°C rocks start to melt  Bury to 2-45 km (pressure of 1-15 kb)  Apply water — Remember!?! Water ________ the melting point of rocks http://earthref.org/SCC Scripps Classroom Connection

3. Factors Controlling Metamorphism Primary:  _______________ Secondary:  Presence of __________________ fluids http://earthref.org/SCC Scripps Classroom Connection

4. Pressure Scripps Classroom Connection http://earthref.org/SCC ____________ Pressure: same pressure from all directions. ____________ Pressure: unequal pressure from different directions

5. Directed Pressure http://earthref.org/SCC Scripps Classroom Connection

7. ● __________: minerals are arranged in layers or bands ● __________: not layered; minerals grow in the same size and shape Metamorphic Rock Textures http://earthref.org/SCC Scripps Classroom Connection Animation

8. Foliation becomes more distinct with increased temperature and pressure Crystals grow ______________ Foliation becomes more _______________ Order schist, slate, and gneiss with increasing foliation and explain why. http://earthref.org/SCC Scripps Classroom Connection

9. Effects of Hydrothermal Fluids Heating rock underground can produce _________ and _______. Fluids ___________ and ___________ ions throughout large regions of rock Rocks change ___________________ into different mineralogy and texture. http://earthref.org/SCC Scripps Classroom Connection

10. Three Types of Metamorphism Contact Regional Hydrothermal http://earthref.org/SCC Scripps Classroom Connection

11. http://earthref.org/SCC Relation of Metamorphic Rocks to Plate Tectonics

12. ● Metamorphism involves a change in rock ● Metamorphism occurs under three conditions ● Metamorphic rocks are classified into two main groups ● There are two overall categories of metamorphism according to how they are formed, and the area of rock affected Overview http://earthref.org/SCC Scripps Classroom Connection