Show:
VOLCANOES /
PLATE TECTONICS
VOLCANIC ERUPTIONS II
VOLCANIC ERUPTIONS
VOLCANIC LANDFORMS
VOLCANIC LANDFORMS II
100
This can lower the melting temperature of rock as it descends into Earth's interior at a subduction boundary?
What is water
100
The formation of the Hawaiian islands is associated this
What is a Hot spot?
100
A volcano that may erupt again sometime in the distant future is said to be
What is Dormant?
100
When magma works in between rock layers and forces them up into a dome shape and then cools, its forms this
What is laccolith
100
A mass of rock formed when a large body of magma cools inside the crust is called
What is batholith
200
This can form on a landmass next to convergent boundary
What is a volcanic arc?
200
This material makes up a pyroclastic flow
What is superheated ash?
200
If the volcano 's magma is high in silica, the volcano will probably
What is erupt explosively
200
When magma hardens in a volcano's pipe, the result will eventually be a landform called
What is a volcanic neck
200
Tall, cone shaped mountains in which layers of lava alternate with layers of ash are called
What is composite or strato volcanoes
300
The major ingredient in magma formed from the melting of continental rock
What is silica?
300
Before lava reaches the surface, the molten material is called
What is magma
300
This type is fast-moving hot lava
What is pahoehoe
300
Huge hole left by collapse of a mountain is called
What is caldera
300
This forms when magma forces itself between rock layers and hardens
What is a sill
400
Volcanoes that occur along a mid-ocean ridge occur at a
What is diverging plate boundary
400
A pyroclastic flow usually occurs in a(n)_________ eruption
What is an explosive
400
These two things determine the violence of a volcanic eruption
What is the water content and silica content of the magma
400
Groundwater heated by a nearby body of magma can spray from the ground under pressure, forming
What is a geyser
400
This type of volcanic structure is forming in the crater of Mt St Helens
What is a volcanic dome
500
A major volcanic belt that circles the Pacific Ocean
What is Ring of Fire
500
Molten material that leaves a volcano's vent is called ________
What is lava
500
A quiet eruption may produce slow moving, cooler lava that hardens to form rough chunks
What is Aa
500
In volcanic areas, groundwater heated by magam is a source of
What is geothermal energy
500
Olympus Mons on Mars is the largest volcano in the Solar System. It is this type of volcano.....
What is a shield volcano