Types of Volcanoes
Volcano Stuff
Lava
Magma
Other Stuff
100
This volcano has gently sloping sides.
What is a shield volcano?
100
This is the point where the magma leaves
What is the vent?
100
This causes magma to rise
What is density?
100
These are the three conditions neede to form magma
What are increase in pressure, decrease in temperature, and addition of water?
100
This is a volcano that is unlikely to erupt but could.
What is a dormant volcano?
200
This type of volcano has layers of ash and lava.
What is a composite volcano?
200
Mount Saint Helens in the Cascade Range is an example of this type of volcano
What is a composite cone (stratovolcano)?
200
This is a lava flow found underwater.
What is pillow magma?
200
Most of the magma that reaches earth's surface is found here.
What is a divergent boundary (spreading center)?
200
Hardened material that erupts from a volcano
What is tephra (pyroclastic material)?
300
This type of volcano is a very steep cone shaped hill or mountain.
What is a cinder cone volcano?
300
This is the large area underground where the magma is held.
What is the magma chamber?
300
This material changes the thickness of lava.
What is silica?
300
This magma is associated with relatively nonexplosive eruptions.
What is basaltic?
300
This is a mudflow created by a volcanic eruption.
What is a lahar?
400
This process causes chains of volcanic islands to form
What is subduction?
400
This is the bowl shaped area that forms around the volcano's vent.
What is the crater?
400
This is wrinkled lava that forms from fast moving hot lava .
What is pahoehoe?
400
This type of magma erupts from the Hawaiian Island volcanoes.
What is basaltic?
400
This is the general movement of the Pacific plate
What is north?
500
This is a large hole left by the collapse of a volcanic mountain.
What is a caldera?
500
This is an example of a caldera in the cascade Mountain range
What is Crater Lake?
500
This is chunky lava formed from cooler and slower moving lava.
What is aa?
500
This type of magma erupts from the volcanoes in the Cascade Mountain Range
What is andesitic?
500
This is an explosion of ash cinders and bombs from a violent volcanic eruption.
What is a pyroclastic flow?
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