1. By: G.C.

2. How
Metamorphi
c is Formed
•
•
•
Great
Temperatures
Pressures
Mechanical
Stress

3. Pressures and Mechanical Stress
Two plates collide; great temperatures
and pressures can be produced.
 Metamorphic rocks form along the
margins of continents, where plates
carrying continental crust collide with
plates carrying oceanic crust.
 plate collisions can cause new mountain
ranges to form.


4. Great
Temperatures

- Metamorphic rock
can also result when hot,
molten rock called
magma is forced up
through existing rocks in
the crust, heating the
rocks and increasing the
pressure.
Insane

- layers of overlying
rocks put huge pressure
on them to turn to
metamorphic rock.

5. Examples of Metamorphic
Rock
Slate
Gneiss
Schist
Marble
Phyllite

6. Bibliography
http://library.eb.com/kids/comptons/article-9329895
Pictures
Schist
greenschist. Photograph. Encyclopedia Britannica. Web. 8 May 2013.
<http://school.eb.com/elementary/art-174629>.
Gniess
gneiss. Photograph. Encyclopedia Britannica. Web. 8 May 2013.
<http://school.eb.com/elementary/art-174628>.
Slate
slate. Photograph. Encyclopedia Britannica. Web. 8 May 2013.
<http://school.eb.com/elementary/art-174630>. slate. [Photograph]. In
Encyclopedia Britannica. Retrieved from
http://school.eb.com/elementary/art-174630 slate, Photograph, from
Encyclopedia Britannica, accessed May 8, 2013,
http://school.eb.com/elementary/art-174630. slate [Photograph].
Encyclopedia Britannica. Retrieved 8 May 2013, from
http://school.eb.com/elementary/art-174630
Marble
marble. Photograph. Encyclopedia Britannica. Web. 8 May 2013.
<http://school.eb.com/elementary/art-149184>.
Phyllite
phyllite. Photograph. Encyclopedia Britannica. Web. 8 May 2013.
<http://school.eb.com/elementary/art-122663>. phyllite. [Photograph]. In
Encyclopedia Britannica. Retrieved from
http://school.eb.com/elementary/art-122663 phyllite, Photograph, from
Encyclopedia Britannica, accessed May 8, 2013,
http://school.eb.com/elementary/art-122663. phyllite [Photograph].
Encyclopedia Britannica. Retrieved 8 May 2013, from
http://school.eb.com/elementary/art-122663