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Ring of Fire area around the Pacific Ocean where a lot of volcanoes are found
volcano opening in Earth that erupts gases, ash, and lava
acid raid created from sulfuric gases from volcanos; kills animals and pollutes water
vent what magma flows out of
crater depression (low spot) around a vent
plates move together or apart to form volcanoes
divergent plate spread apart
convergent plate push together
hot spot created at boundary between mantle and core
# of volcanoes in Hawaii 5
Hawaiian volcanoes Mauna Koa, Kilawea, Mauna Loa, Kohala, Hualalai
explosive eruption trapped gas, water vapor, granitic or andesitic magma
quiet eruption basaltic magma
Pahoehoe lava runs down the side of a volcano
Aa lava stiff, slow moving lava
shield volcano quiet eruption with gently sloping sides
cinder cone volcano tephra falls to the ground; steep sides
tephra bits of rocks or solidified lava
composite volcano alternating layers of quiet lava and explosive tephra
batholith magma being forced upward that cools slowly and solidifies before reaching the surface
dike magma that hardens after filling a crack that cuts across rock layers
sill magma that hardens after filling a crack parallel to rock layers
volcanic neck formed when cone erodes away leaving solid igneous core
caldera large depression formed when the top of a volcano collapses
weathering wears down surface rock to expose igneous features
Created by: GarrisonWAHS
Popular Earth Science sets




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