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a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt

Magma Chamber

the body of molten rock that feeds a volcano


an opening the surface of the earth through which volcanic material passes.


a bowl-shaped depression formed by the impact of a meteorite or bomb


the large hole at the top of a volcano formed when the roof of a volcano's magma chamber collapses

lava plateau

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

rift zone

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


molten rock in the earth's crust


A weak spot in the middle of a tectonic plate where magma surfaces; forms a volcano

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