Ch 22.6 Study Guide Volcanoes
CPC
Ch. 22.6: Volcanoes
Vocabulary: volcano, magma chamber, pipe, vent, crater, caldera, silica, hot spot, shield
volcano, cinder cone, composite volcano, batholiths, sill, dike, volcanic neck.
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Where do most volcanoes occur?
Why do volcanoes erupt? Describe process (Why does magma rise to the surface?)
Volcanic structures: magma chamber; caldera; central pipe
Explain 3 ways can volcanoes form? (Divergent p.b.; Convergent/subduction p.b.; hot
spots)
What is a hot spot? Why are eruptions quiet at hot spot volcanoes?
How were the Hawaiian islands formed?
Quiet vs. Explosive eruptions (silica; water; temps.; & viscosity)
Volcano types: shield; composite; cinder cone; seamount
o Pick out type from picture or description
o Associate type of eruption with each type of volcano
o Identify location where each can be found (Iceland; Hawaii; Japan; E.Africa)
Identify & describe non-volcanic igneous features: lava plateaus (extrusive); sills; dikes;
batholiths; volcanic necks or plugs (all intrusive)
Ch 22.6 Study Guide
Volcanoes
CPC
Ch. 22.6: Volcanoes
Vocabulary: volcano, magma chamber, pipe, vent, crater, caldera, silica, hot spot, shield
volcano, cinder cone, composite volcano, batholiths, sill, dike, volcanic neck.









Where do most volcanoes occur?
Why do volcanoes erupt? Describe process (Why does magma rise to the surface?)
Volcanic structures: magma chamber; caldera; central pipe
What 3 ways can volcanoes form? (Divergent p.b.; Convergent/subduction p.b.; hot
spots)
What is a hot spot? Why are eruptions quiet at hot spot volcanoes?
How were the Hawaiian islands formed?
Quiet vs. Explosive eruptions (silica; water; temps.; & viscosity)
Volcano types: shield; composite; cinder cone; seamount
o Pick out type from picture or description
o Associate type of eruption with each type of volcano
o Identify location where each can be found (Iceland; Hawaii; Japan; E.Africa)
Identify & describe non-volcanic igneous features: lava plateaus (extrusive); sills; dikes;
batholiths; volcanic necks or plugs (all intrusive)