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Cinder Cone A steep cone made of volcanic ash,cinders,and bombs around a volcanoes opening
Composite Volcano A tall cone where layers of lava alternate with layers of ash and other volcanic material
Caldera The hole at the top of a volcano formed when the roof of a volcanoes opening collapses
Volcanic Neck A deposit of hardened magma in a volcanoes pipe
Geothermal Activity When underground water is heated by magma
Geyser Water and steam which build up pressure underground and erupts
Island Arc A stream of islands formed by volcanoes along a deep ocean trench
Hot Spot Where magma from within the magma melts through the crust above it
Lava Flow Area covered by lava as it flows out of a volcanoes vent
Dormant A volcano that isn't active ,but can become active in the future
Extinct a volcano that is inactive and most likely will never erupt again
Volcano A weak spot in the crust where magma has come to the surface
Magma A molten mixture of rock which forms substances,gases,and water from the mantle
Lava Liquid magma that reaches the surface
Ring of Fire a line of volcanoes surrounding the pacific ocean
Magma Chamber a pocket beneath a bolcon a pocket beneath a volcano where magma collects
Pipe a tube where magma moves form the magma chamber to earth's surface
Vent an opening where molten rock and gas leave a volcano
crater an area which forms around a volcano's opening
viscosity a liquid's resistance to flowing
Cilica material found in magma that is formed from the elements of oxygen and silicone
Shield Volcano a gently sloping mountain made by layers of lava and formed by quiet eruptions
Batholith a mass of rock formed when a large body of magma cools inside the crust
Pyroclastic flow the explosion of ash cinders bombs and gases during an explosive volcanic eruption
Created by: 114437