Types of Volcanoes
This volcano has gently sloping sides.
What is a shield volcano?
This is the point where the magma leaves the volcano's pipe.
What is the vent?
This is molten rock above ground.
What is lava?
This is what forms when magma hardens in a volcanic pipe.
What is a volcanic neck?
This is a volcano that is unlikely to erupt soon.
What is a dormant volcano?
This type of volcano has layers of ash and lava.
What is a composite volcano?
This is the narrow tube that rises from the magma chamber to the vent.
What is the pipe.
This is molten rock below ground?
What is magma
This is when magma squeezes between relatively horizontal layers of rock.
What is a sill?
A major belt of volcanoes that rims the Pacific Ocean.
What is the Ring of Fire?
This type of volcano is a very steep cone shaped hill or mountain.
What is a cinder cone volcano?
This is the large area underground where the magma is held.
What is the magma chamber?
This material changes the thickness of lava.
What is silica?
This is when magma forces itself into a vertical crack and hardens.
What is a dike?
An area where magma from deep within the mantle melts through the crust above it.
What is a hot spot?
This is a high level area formed by rising underground lava.
What is a lava plateau?
This is the bowl shaped area that forms around the volcano's vent.
What is the crater?
This is fast moving hot lava.
What is pahoehoe?
This is a mass of rock that forms when a large body of magma cools inside the cust.
What is a batholith?
A string of islands formed by the volcanoes along a deep ocean trench.
What is an Island Arc?
This is a hole left by the collapse of a volcanic mountain.
What is a caldera?
This is a crack that lava flows out which is not the main vent.
What is the side vent.
This is cooler and slower moving lava.
What is aa?
These are smaller bodies of magma that form a feature by forcing layers of rock to bend upward.
What is a dome mountain?
This is and explosion of ash cinders and bombs from a violent volcanic eruption.
What is a pyroclastic flow?