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By: Jiae G7B
Earth Sci. Volcanoes Vocabulary
A vent or fissure in the Earth’s surface through
which magma and gasses are expelled
Magma chamber
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 partially
empties and causes the ground above to sink
Lava Plateau
A wide, flat landform that results from a repeated
non explosive 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
Hot spot
A volcanically active area of Earth’s surface far
from a tectonic plate boundary