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VOLCANOss

VOLCANO-LAST 16

QuestionAnswer
magma chamber the pocket beneath a volcano where magma collects.
pipe a long tube through which magma moves from the magma chamber to Earth's surface
vent the opening through which molten rock and gas leave a volcano
lava flow the area covered by lava as it pours out of a volcano's vent
crater a bowl-shaped area that forms around a volcano's
pyroclastic flow the expulsion of ash, cinders, bombs and gases during an explosive volcanic eruptions
dormant describes a volcano that is not currently active, but that may become active in the future
extinct describes a volcano that is no longer active and is unlikely to erupt again
shield volcano a wide, gently sloping mountain made of layers of lava and formed by quiet eruptions
cinder cone a steep, cone-shaped hill or small mountain made of volcanic ash, cinders and bombs piled up around a volcano's opening
composite volcano a tall, cone-shaped mountain in which layers of lava alternate with layers of ash and other volcanic materials
caldera the large hole at the top of a volcano formed when the roof of a volcano's magma chamber collapses
volcanic neck a deposit of hardened magma in a volcano's pipe
dike a slab of volcanic rock formed when magma forces itself across rock layers
sill a slab of volcanic rock formed when magma squeezes between layers of rock
batholith a mass of rock formed when a large body of magma cools inside the crust
geothermal activity the heating of underground water by magma
geyser a fountain of water and steam that builds up pressure underground and erupts at regular intervals
Created by: 6bscience112
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