Metamorphic Rocks

1
Metamorphic Rocks
2
Metamorphic Rock

• Rock that has been changed (metamorphosed) into a
  different rock type, without actually melting, by
  an increase in temperature and/or pressure,
  and/or the action of chemical fluids.

3
How does the temperature increase?

• The temperature increases either from being
  buried deeper into the earth or if the
  surrounding rock is heated.
• Rocks can get moved along faults.
• Faults A fracture or fracture zone of rock,
  along which rock masses have moved relative to
  one another parallel to the fracture.

4
Deformation in Metamorphism

• Regional Metamorphism a general term for
  metamorphism affecting an extensive region.
• Rock can become extremely deformed during
  metamorphism. When plates collide, it can cause
  extreme change in the rock around the boundary,
  thus the changes.

5
The original rock

• Protolith the original rock that metamorphic
  rocks are formed from. Either the igneous rock
  or sedimentary rock that it used to be.