divergent boundary
Post on 17-Feb-2016
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Divergent Boundary A plate boundary
where the plates
pull away from each other
As the plates pull away, magma rises to fill the gap. The molten
material cools and forms a type of mountain called a mid-ocean ridge.
EXAMPLE: MID-ATLANTIC RIDGE
Mid-Atlantic Ridge – world’s longest mountain chain
WHEN THE SEA FLOOR GETS LARGER,
THIS ISCALLED SEA-FLOOR
SPREADING
Transform Boundary
This boundary is where two plates slide past each other.
The two plates grinding past each other, creating seismic waves,
resulting in earthquakes!
EXAMPLE: SAN ANDREAS FAULTLINE
San Andreas Fault
Convergent Boundaries
This boundary occurs whentwo plates push against one another.
WHAT FORMS DEPENDS ON THE TYPE OF CRUST.
Continental/Continental CollisionWhen two pieces of continental
Crust collide, this causes the rock layers to buckle upward, creating FOLDED MOUNTAINS.
EXAMPLE: HIMALAYAN MOUNTAINS
Continental/Oceanic Collision - Subduction Zones
If a piece of continental crust collides with a piece of oceanic crust,
the denser oceanic crust subducts or dives under the continental crust. The oceanic plate melts and creates
a volcano! Subduction Zone Animation
Make page ____ look like this:Movement of
PlatesType of
BoundaryCrust + or
Crust-Feature Formed
Feature Example
Convergent
Convergent
Convergent
Transform
Divergent
Create a bubble map about Plate Tectonics and the Three Boundaries.
Plate Tectonics
What the Theory Says
What the original
Theory was
Three Plate Boundaries
and the landforms
they create
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