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Volcanoes can form in a two different ways. The first is formed at destructive plate boundaries where one plate is subducted underneath the other. This subduction causes the plate to melt due to pressure and heat from the mantle. This newly melted crust is less dense than the surrounding magma which means it rises to the surface in the form of the volcano. The second type of volcano is formed by a concentration of radioactive elements in the mantle creating a magma column which creates an area of the crust which is thinner and creating a volcano at this point (a 'hot spot'). As the crust moves over the top of this hot spot it creates a chain of islands with only one active volcano (for example the Emperor Seamount Chain which Hawaii is part of).
What else can I help you with?
When a volcano erupts quietly what kind of mountains forms?
a shield volcano
What forms when a larger volcano collapse in on itself?
It forms a 'caldera'.
What kind of volcano forms when magma is being forced up?
IT IS A Sheild volcano
What type of volcano forms where plates pull apart?
A shield volcano forms where plates pull apart. This type of volcano has gentle sloping sides and is characterized by its low viscosity lava flows. Examples of shield volcanoes include those in Hawaii.
What crater forms when a volcano erupts?
A divergent
What events occur as a volcano forms?
nothing
What forms in the center of a large volcano?
A caldera may form in the centre of a very large volcano.
This type of volcano forms from lava eruptions and tephra deposits forming a towering volcano.?
Composite
What type of volcano forms a relatively small steep sided cone?
Cinder Cone Volcano
A forms when magma slowly rises up inside the crater of a larger volcano.?
When magma slowly rises up the inside the crater of a larger volcano, it forms a Lava Dome.
Does hardened lava form a vent?
No, it forms a volcano.
What type of land forms are on Saturn?
a volcano landform
