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volcanoes

TermDefinition
a weak spot in the crust where magma comes to the surface volcano
magma that reaches the surface lava
a major volcanic belt formed by the many volcanoes that rim the Pacific Ocean Ring of Fire
an area where material from deep within the mantle rises and melts, forming magma hot spot
a molten mixture of rock-forming substance magma
thins layers of lava flow gradually to build a wide, gently sloping mountain shield volcano
tall, cone-shaped mountains in which layers of lava alternate with layers of ash composite volcano
ash, cinders, and lava bombs build up around a vent in a steep, cone-shaped hill or small mountain cinder core volcano
material found in magma that is formed from oxygen and silicon silica
hot fast moving lava pahoehoe
cool slow moving lava aa
type of hot spring that erupts as a fountain of water and steam geyser
mass of rock formed when magma cooled inside the crust batholith
slab that forms when magma forces itself across rock layers dike
slab that forms when magma squeezes between layers of rock sill
unlikely to erupt again extinct
showing signs of erupting in the near future dormant
erupting active
a land form produced when magma in a volcanic pipe hardens volcanic neck
large hole formed when a volcano's magma chamber empties and collapses caldera
bowl shaped area that forms around a volcanoes central vent crater
high level area that was formed by layers of lava lava plateau
substance that cannot be broken down into other substances element
a substance made of two or more elements that have been chemically combined compound
the physical property of liquids viscosity
a long tube that connects the magma chamber to the earths surface pipe
an opening in the volcano vent
magma collects in a pocket magma chamber
formed when expanding gases exert an enormous amount of energy volcanic ash
a type of geothermal activity that collects in a natural pool hot spring
Created by: rxwhdsa
 

 



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