A plate that contains oceanic lithosphere may descend into the mantle beneath another plate.

At tectonic plates boundaries several process cause rock to melt at lower crustal or upper mantle

Forms in the deeper parts of earths crust

Are a large,angular pieces of solid rock that erupt from volcano.

The boundary between two tectonic plates that are pulling away from one another.

It forms in the deeper parts of the mantle.

Are the smallest type of volcanoes.

Volcanically active places that are not located at tectonic plates.

Used to describe lava and rocks.

In which one plate move beneath another plate

Material particles of lava that form when magma explodes.

Hot spots are thought to lie directly above columns of hot rocks that rise through earth's mantle.