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Chp 9 Voc
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a vent or fissure in the Earth's surface through which magma and gases are expelled.
Volcano
the body of molten rock that feeds a volcano.
magma chamber
an opening at the surface of the Earth through which volcanic material passes.
vent
a funnel-shaped pit near the top of the central vent of a volcano
crater
a large, semicircular depression that forms when the magma chamber below a volcano partiacally empties and causes the ground above to sink.
caldera
a wide, flat landform that results from repeated nonexplosive eruptions of lava that spread over a large area
lava plateau
the way lava flows
viscosity
an area of deep cracks that forms between two tectonic plates that are pulling away from each other
rift zone
a volcanically active area of Earth's surface far from a tectonic plate boundary
hot spot
magma that is blasted into the air and hardens
pyroclastic material
molten rock underground
magma
magma that flows on the earth's surface
lava
dust size particles of hardened lava
ash
a crack or opening in the Earth's crust
vent
vent on Earth's surface through which magma and gases are expelled
volcano
Author
Anonymous
ID
58372
Card Set
Chp 9 Voc
Description
Chp 9 Voc
Updated
2011-01-06T14:50:11Z
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