(Further information: Magma) Lava is the molten rock expelled by a volcano during an eruption. More

A lava tube is a natural conduit formed by flowing lava which moves beneath the hardened surface of a lava flow. More

A volcanic plateau is a plateau produced by volcanic activity. More

In volcanology, a lava dome or volcanic dome is a roughly circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. More