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How do composite volcanoes form?

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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. read more

These composite volcanoes form in chains tens of kilometers long and can have heights up to 3,000 meters. The most popular example of a composite volcano is Mount Vesuvius, whose eruption destroyed the Italian town of Pompeii in 79 A.D. read more

The Evolution of a Composite Volcano : A. Magma, rising upward through a conduit, erupts at the Earth's surface to form a volcanic cone. Lava flows spread over the surrounding area. B. read more

Composite volcanoes Composite volcanoes (also called stratovolcanoes) are much more explosive than shield volcanoes, the other important type of volcano. The large and generally cone-shaped volcanoes form along plate boundaries called subduction zones where one of the Earth's plates moves below another. read more

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