There are two main types of volcano - composite and shield. The two types of volcano form in different places and have very different characteristics. Ash released from shield volcanoes often ...

Magma is the name given to molten material inside the earth (volcano) whereas lava is the name given to molten material which is often ejected from a volcano and then cools and solidifies.

Four types of volcanoes—shield, composite, cinder cone, and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

but stratovolcanoes or composite volcanoes like Bárdarbunga are the most common. These look like conical, concave mountains ...