1 December 2011
OBJECTIVE: Describe the difference between foliated and
nonfoliated metamorphic rock.
INTRO
•Check and Hand-in Missing Assignments
•Write Q&A in notebook:
•What are some things you know of that can morph
(change)?
Metamorphic Rock
Metamorphic Rocks
• Metamorphic rocks
• Morph means to change
• These rocks change under
heat & pressure
• Contact metamorphism
– nearby magma can change
the rocks
• Regional metamorphism
– Deep underground a wide
area of rocks are changed
due to the heat & pressure
Metamorphic Rocks
• 2 types:
– Foliated Metamorphic
Rock
• Mineral grains are
arranged in plans or
bands
Metamorphic Rocks
– Nonfoliated
Metamorphic Rock
• Minerals grains are not
arranged in planes or
bands
Metamorphic Rocks
• Summary:
– Where do metamorphic rocks form?
– What is the difference between foliated and
nonfoliated?
1 December 2011
OBJECTIVE: Describe the difference between foliated and
nonfoliated metamorphic rock.
OUTRO
Which do you think would be easier to break, a foliated rock,
such as slate, or a nonfoliated rock, such as quartzite?
Explain.