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Element can not be broken down into other substances.
Viscosity a liquids resistance of flowing.
Silica a material found in magma that is formed from the elements oxygen and silicon.
Pahoehoe a hot, fast moving type of lava that hardens to form smooth rope like coils.
AA A slow moving type of lava that hardens to form rough chunks; cooler than Pahoehoe.
Compound a thing that is composed of two or more separate elements; a mixture
lava hot molten or semifluid rock erupted from a volcano or fissure, or solid rock resulting from cooling of this.
dike a long wall or embankment built to prevent flooding from the sea.
magma hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed by cooling
vent an opening that allows air, gas, or liquid to pass out of or into a confined space.
sheild a broad, domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava.
volcano a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.
pipe a tube of metal, plastic, or other material used to convey water, gas, oil, or other fluid substances.
cinder con volcano A cinder cone or scoria cone is a steep conical hill of tephra that accumulates around and downwind from a volcanic vent.
hot spring a spring of naturally hot water, typically heated by subterranean volcanic activity.
composite volcano A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash.
ring of fire Ring of Fire is a 1961 Metrocolor Drama directed by Andrew L. Stone, starring David Janssen, Joyce Taylor and Frank Gorshin. The film was shot in Vernonia, Oregon and Wynoochee River, Washington, featuring footage from two real forest fires.
crater a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion or the impact of a meteorite or other celestial body.
lava flow a mass of flowing or solidified lava.
caldera a large volcanic crater, typically one formed by a major eruption leading to the collapse of the mouth of the volcano.
magma chamber A magma chamber is a large underground pool of liquid rock found beneath the surface of the Earth.
batholith a very large igneous intrusion extending deep in the earth's crust.
geyser a hot spring in which water intermittently boils, sending a tall column of water and steam into the air.
lava plateau An elevated tableland or flat-topped highland that is several hundreds to several thousands of square kilometers in area; underlain by a thick succession of lava flows
volcanic ash Volcanic ash consists of fragments of pulverized rock, minerals and volcanic glass, created during volcanic eruptions
sill tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or even along the direction of foliation in metamorphic rock
active a volcano that erupts whenever
extinct a volcano that will not erupt again
subduction the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
Created by: 1962111940