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Branden Alejandrez

Viscosity rapidly moving volcanic material
pluton forms when material ejected high into the air falls back to earth and piles up around the vent.
batholith larger depressions.
stock intrusive igneous rock bodies.
laccolith rock fragments thrown into the air during a volcanic eruption.
sill is a mountain with broad gently sloping sides and a nearly circular base.
dike irregularly shaped masses of coarse-grained igneous rocks cover at least 100 km and take millions of years to form.
vent at the top of a volcano, around the vent, is a bowl shaped depression
crater a mushroom-shaped pluton with a round top and flat bottom
caldera is a pluton that cuts across preexisting rocks
shield volcano the internal resistance of flow
cinder-cone volcano forms when layers of volcanic fragments alternate with lava.
composite volcano an opening in the crust where lava erupts.
tephra is a pluton that forms when magma intrudes parallel to layers of rock
pyroclastic flow hot regions of earths mantle where high temps plumes of mantle material rise toward the surface.
hot spot irregularly shaped plutons that are similar to batholiths but are smaller in size

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