Download Convergent and Transform Boundaries

Convergent and Transform
Boundaries
The two types of crust are
oceanic and continental.
Oceanic crust is more dense
than continental crust.
Convergent
boundaries push
together.
Subduction is the sideways and
downward movement of the edge
of a plate of the earth's crust into
the mantle beneath another plate.
The more dense plate will go under
the less dense plate.
The three types of
convergent boundaries
are
Continental-Continental
Oceanic-Oceanic
Oceanic-Continental
When continental crust meets
continental crust at a convergent
boundary, a collision occurs,
resulting in folds, faults, and high
mountains.
Ocean trench is a long narrow trench
that forms when one plate goes
under another at a convergent
boundary. This can be oceanicoceanic OR oceanic-continental.
At convergent boundaries
oceanic plates will go under
continental plates because
oceanic crust is more dense
than continental crust.
Oceanic-continental
convergent boundaries
can form mountains.
At convergent plate boundaries
known as subduction zones, a
trench and deep earthquakes mark
the zone where a slab of oceanic
lithosphere descends into the
mantle, and volcanoes and
mountain ranges form on adjacent
land.
Oceanic crust is younger at an
ocean ridge
(divergent boundary)
and older near a trench
(convergent boundary).
Transform plates
slide past one
another.
Transform
boundaries
connect other
plate
boundaries and
are
characterized by
earthquakes.
The San Andreas
Fault in
California is a
transform
boundary. This
is a very active
boundary
causes
earthquakes .
Earthquakes
represent sudden
breaks in crust
continuously
stressed by plate
movement.
Gradually over
time, the same
movements
result in major
crustal features.