Volcanoes tend to form mainly along the edges of tectonic plates, or where the magma is particularly thin or weak.
They are concentrated in zones - specifically at or near tectonic plate boundaries.
There is a pattern. Mountains, volcanoes, and earthquakes are found predominantly near plate boundaries. Trenches are found expluxively at subduction zones.
Near subduction zones.
Andesite can be found around volcanoes with magma of intermediate composition, usually near subduction zones.
magma forms in mantle above slab
Volcanoes are in concentrated zones.
Volcanoes are formed by tetonic plates pushing together. Therefore they often form in lines. Such as the Himalyers and the alpes.
Volcanoes are formed by tetonic plates pushing together. Therefore they often form in lines. Such as the Himalyers and the alpes.
They are concentrated in zones and are scattered unevenly.
Volcanoes are distributed in concentrated zones.
They are concentrated in zones - specifically at or near convergent and divergent tectonic plate boundaries. There are a few exceptions that can occur within tectonic plates which are thought to be caused by mantle plumes which create hot spots. An example would be the Hawaiian Island chain which has formed roughly in the centre of the pacific plate.
They are concentrated in zones - specifically at or near tectonic plate boundaries.
Volcanoes are more frequent around the "ring of fire", by japan, California, Australia, and Alaska.
Volcanoes are distributed in concentrated zones.
Explosive volcanoes are most common at subduction zones.
composite volcanoes
Cone volcanoes which are likely to erupt explosively are found at subduction zones. Spreading zones (constructive plate boundaries) and hot spots produce quieter volcanoes because their lava is thinner. The ones at hot spots are shield volcanoes.