Download metamorphic rocks

Meta=change
Morphic=form/shape
I. Parent Rocks
Rocks that
have been
changed
from an
original
“parent”
rock
II. How are Metamorphic Rocks
Formed?
Formed under tremendous heat, great
pressure, and chemical reactions
 Can make new minerals
 Most are found on or near plate
boundaries
 Metamorphism is changing one type of
rock into another as a result of heat(from
mantle), Pressure (from layers above)
and/or chemical reactions.

III. Where does the Heat Come
From?
The heat comes from:
1. Mantle
2. Pressure of the
layers
3. Movement of the
Plates on Earth
IV. What does Metamorphism
change?
Metamorphic rocks can
change:
1. a rocks appearance,
texture
2. crystal structure
3.
mineral content
 It can form from a/an:
1.
Igneous
2. Sedimentary
3. Another
metamorphic rock!

V. Types of Metamorphic Rocks
a. Foliated – mineral crystals are
arranged in parallel layers or bands
Examples: Schist, slate, and gneiss
b. Nonfoliated
– rocks are not banded and
do not break into layers
Examples: Marble and quartizite
Foliated
NON-Foliated
Non-foliated
VI. Contact vs. Regional
Metamorphism
Contact
Small Area
Regional
Large Area
Used in
construction of
buildings and
walkways
Used in tables,
floors, and roofing
Metamorphic Rock
http://www.youtube.com
/watch?v=UrimDbTUalg
Tier 1 Metamorphic
Picture
1 picture of foliated
 1 picture of nonfoliated
 Must have correct
rock names
 Must be presented in
an organized/colorful
way

Chart
Complete chart
 Must do research
 DOES NOT have to
be colorful
