two plates collide
convergent
a depression in the seafloor that is made casued by subduction
trench
two plates move away from each other
divergent
area in a continental plate that is beginning to separate and large valleys are formed
rift zone
two plates rub against each other
transform
area where a large of percentage of the world's volcanoes belong
ring of fire
example of a large transform boundary
san andreas fault
example of a rift valley
African Rift Valley
created from a continental-continental boundary
mountain ranges
what happens to a subducted plate
melts
occurs at a continental-oceanic
subduction
what plates cause volcanoes
oceanic
what boundary creates new sea floor
divergent
occurs at a transform boundary
earthquake
what creates land but is not a plate boundary
hot spot
a crack in the earth's crust where rocks slide past one another
fault
which plate subducts when there are two oceanic
older
occurs at a divergent boundary (new floor)
seafloor spreading
example of a mountain formed by convergent plates
himalayas
motion in mantle is driven by convection ________
currents