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Location
Age
Rock Cycle
Composition
Formation
The Future
Bibliography
Click screen for a
diagram of the
countries that the
Andes' run through.
Click the
Geographic
screen to go
 Entire Western Coast of South America back
 Spans through seven countries
-Venezuela, Columbia, Ecuador, Peru, Bolivia,
Chile, and Argentina
 4500 miles long
The seven
 Tectonic Location
countries that

the Andes
Runs
Mountains
run the entire western
coast of South America
through
Click for Tectonic
Location
Click for picture
Andes Mountains
•Andes Mountains are on the South American
plate.
South American
Plate
•Nazca and South American plate collided
causing the Andes Mountains
•Nazca plate is subducting below the South
Nazca Plateplate
American
Andes
aerial view
•Nazca crust is scraped off adding height
Click the
Back to Location screen to go
back
Tectonic Diagram
This diagram shows how
over a long period of
time, the Nazca plate
 subductes
Nazcaunder
plate collided with South American
slowly
the South American
plate
plate. The farther it
Click For Picture
subductes, the
bigger
the
-Nazca plate-Oceanic Crust
Andes mountains grow
and they begin
to formAmerican plate-Continental
-South
around 60 million years
ago. As
crust melts,
it
 the
Nazca
subducted
under South American plate
becomes less dense and
 to
Volcanic
moves
the surface mountains formed
creating a volcano.
-Crust melted creating magma that rose to
surface creating volcanos
Click the screen to go
back.
 Andes
Mountains were created
Boundary where the
plates meet creating
the Andes
Mountains
Back to
Tectonic
Location
MYA= Millions of Years Ago



140 MYA-Nazca plate subducted under South
American Plate
Andes Mountains began to from 45 MYA
Formed 95 MYA after the subduction process
happened
Andes Mountains
in Chile.
Destructive Force
Subduction is occurringNazca plate subducting
under South American plate.
Convection currents cause the
plates to move.
The force of the oceanic
and continental plates are
causing mountains to
form.
The quick melting
of the crust causes it
to become less
dense and rise to
the surface creating
volcanic mountains.

Sedimentary Rocks make up the majority of the
range.
-Sandstone (Clastic)
-Siltstone (Clastic)
-Shale (Clastic)
-Limestone (Chemical)
Limestone on a mountain
Layers of sandstone
create parts of the
Andes Mountains.

I think that the Andes Mountains will continue
to slowly grow because the Nazca Plate is still
slowly subducting under the South American
Plate. Also weathering will erode the
mountains making them smaller. As long as
the Nazca plate is still subducting below the
South American Plate, then I think there will be
volcanoes forming in the Andes Mountains and
erupting.




"Geological History of the Andes." Andean
Summits. Portable Design, n.d. Web. 26 Oct. 2013.
LiveScience. N.p., 14 Mar. 2103. Web. 1 Oct. 2013.
<http://www.livescience.com/27897-andesmountains.html>.
Plate Tectonics. N.p., 1 Oct. 2013. Web. 1 Oct. 2013.
<http://www.platetectonics.com/oceanfloors/an
des.asp>.
Science Daily. N.p., 2013. Web. 10 Oct. 2013.
<http://www.sciencedaily.com/releases/2009/05
/090515191558.htm>.