Chp 9 Voc

a vent or fissure in the Earth's surface through which magma and gases are expelled.

the body of molten rock that feeds a volcano.

an opening at the surface of the Earth through which volcanic material passes.

a funnel-shaped pit near the top of the central vent of a volcano

a large, semicircular depression that forms when the magma chamber below a volcano partiacally empties and causes the ground above to sink.

a wide, flat landform that results from repeated nonexplosive eruptions of lava that spread over a large area

the way lava flows

an area of deep cracks that forms between two tectonic plates that are pulling away from each other

a volcanically active area of Earth's surface far from a tectonic plate boundary

magma that is blasted into the air and hardens

molten rock underground

magma that flows on the earth's surface

dust size particles of hardened lava

a crack or opening in the Earth's crust

vent on Earth's surface through which magma and gases are expelled