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Most composite volcanoes have a crater at the summit which contains a central vent or a clustered group of vents. Lavas either flow through breaks in the crater wall or issue from fissures on the flanks of the cone. Lava, solidified within the fissures, forms dikes that act as ribs which greatly strengthen the cone. The essential feature of a composite volcano is a conduit system through which magma from a reservoir deep in the Earth's crust rises to the surface. The volcano is built up by the accumulation of material erupted through the conduit and increases in size as lava, cinders, ash, etc., are added to its slopes. When a composite volcano becomes dormant, erosion begins to destroy the cone. As the cone is stripped away, the hardened magma filling the conduit (the volcanic plug) and fissures (the dikes) becomes exposed, and it too is slowly reduced by erosion. Finally, all that remains is the plug and dike complex projecting above the land surface -- a telltale remnant of the vanished volcano.

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What type of vocanoes are there?

There are four main types of volcanoes: shield volcanoes, cinder cone volcanoes, stratovolcanoes (composite volcanoes), and calderas. Each type has distinct characteristics based on their eruption style, shape, and composition.


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The three main types of volcanoes are shield volcanoes, cinder cone volcanoes, and composite (or stratovolcanoes) volcanoes. Shield volcanoes have gently sloping sides and are formed by layers of lava, while cinder cone volcanoes are steep-sided with a conical shape and are made of pyroclastic material. Composite volcanoes are a mix of both lava and pyroclastic material, with a classic symmetrical cone shape.


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What are the three different volcanoes?

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Yes. Composite volcanoes often produce violent eruptions.


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What are 3 kind of volcanoes?

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