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Volcanoes Study Guide 7
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basaltic
low-silica magma
crater
steep-walled depression around the vent
tephra
bits of rock or solidified lava
composite
a ____ volcano forms from alternating layers of quiet lava and ore explosive tephra
granitic
high-silica magma
cinder cone
as tephra falls to the ground, it forms a steep-sided, loosely packed ___ volcano
shield
as lava spreds out in flat layers, they form a broad volcano with gently sloping sides called a ___ volcano
andesitic
intermediate silica magma
Connie Fontenot
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