VOLCANO DECK Flashcards
volcano
a vent or fissure in the Earths surface through which magma gases are explelled
magma chamber
the body of molten rock that feeds a volcano
vent
an opening at the surface of the Earth through which volcanic material passes
crater
a funnel-shaped pit near the top of the central vent of a volcano
caldera
a large semicircular depression that forms when the magma chamber below a volcano partially empties and causes the ground above to sink
lava plateu
a wide flat land form that results from repeated nonexplosive eruptions of lava that spread over a large area
rift zone
an area of deep cracks that form between two tectonic plates that are pulling away from each other
hot spot
a volcanically active area of Earths surface far from a tectonic plate boundary
