Volcano Hunters Vocab 1

Front

A large piece of the earth's crust that moves slowly across the surface is called a

Back

tectonic plate.

Front

A place where two tectonic plates touch.

Back

plate boundary.

Front

Tectonic plates colliding create a:

Back

convergent plate boundary.

Front

When two tectonic plates move apart, they have a

Back

divergent plate boundary.

Front

When two tectonic plates slide past each other, they have a:

Back

transform plate boundary.

Front

Tectonic plate sinking at a convergent boundary.

Back

subduction.

Front

Subduction of converging oceanic plates results in:

Back

a volcanic island arc.

Front

When ocean plates diverge, magma rises, creating new rock through a process called...

Back

seafloor spreading.

Front

When two continental plates diverge, __________ is formed.

Back

a rift valley.

Front

A volcano not near plate boundaries results from ____________, where a mantle plume melts the crust above.

Back

a hot spot.