Download Types of Plate Boundaries

 Scientists
identify the boundaries
between two plates by the plate
movement.
 There are three types of plate
boundaries:
1. Divergent
2. Convergent
3. Transform
A divergent
boundary is a
boundary
where two
plates are
moving away
from each
other.
This is an
example of a
divergent
boundary.
Bridge across the Alfagaria Rift Valley in southwest Iceland, that is part of
the boundary between the Eurasian and North American continental
tectonic plates.
A
Rift Valley is a deep valley located on
divergent boundaries.
 Remember the mid-ocean ridge? The
middle part of the mid-ocean ridge is
called a rift valley.
 Rift = crack
 As
divergent boundaries widen rift
valleys form and create new crust from
magma that makes its way to the surface.
A
Convergent Boundary is a boundary
between two plates that are moving
toward each other.
One important
feature is a deepsea trench. These
form along the
subduction zone.
Subduction Boundary – When an oceanic plate plunges beneath another plate
it is said to be sub-ducting beneath the overriding plate. This boundary
between the two plates is a subduction boundary.
These boundaries can occur between two ocean plates or and ocean and
continental plate.
 Collision
Boundary – The boundary that
forms when two continents collide is called
a collision boundary.
 Mountain ranges are usually formed along
such boundaries.
A
Transform Boundary is a boundary
between two plates that are sliding past
each other.
 Movement
along transform boundaries is
not uniform and can sometimes cause
earthquakes.
The San Andreas Fault in North
America is an example of a
Transform Boundary.