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Flashcards - Volcanoes

Flashcards - Volcanoes
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pyroclastic flow
A pyroclastic flow is a fast-moving current of hot gas and rock , which reaches speeds moving away from a volcano of up to 700 km/h
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Composite cone volcanoes
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
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volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface
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Ring of Fire
The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur
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viscosity
The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress
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tsunami
A tsunami , also known as a seismic sea wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake
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tsunami
A tsunami , also known as a seismic sea wave, is a series of waves in a water body caused by the displacement of a large volume of water, generally in an ocean or a large lake
viscosity
The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress
Ring of Fire
The Ring of Fire is a major area in the basin of the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur
volcano
A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface
Composite cone volcanoes
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
pyroclastic flow
A pyroclastic flow is a fast-moving current of hot gas and rock , which reaches speeds moving away from a volcano of up to 700 km/h
lava dome
In volcanology, a lava dome or volcanic dome is a roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano
lava plateau
A volcanic plateau is a plateau produced by volcanic activity
Tephra
Tephra is fragmental material produced by a volcanic eruption regardless of composition, fragment size or emplacement mechanism
volcanic hazard
A Volcanic hazard is the probability that a volcanic eruption or related geophysical event will occur in a given geographic area and within a specified window of time
landslide
A landslide, also known as a landslip, is a form of mass wasting that includes a wide range of ground movements, such as rockfalls, deep failure of slopes, and shallow debris flows
mafic
Mafic is an adjective describing a silicate mineral or rock that is rich in magnesium and iron, and is thus a portmanteau of magnesium and ferric

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