VOLCANO 9

A vent through which molten rock and gas escape from the magma chamber.

Volcano

The mouth of the volcano.

Crater

The region below the surface where magma is stored.

Magma Chamber

A volcano that is currently erupting or expected to erupt in the future.

Active Volcano

The most abundant volcano with steep slope and wide crater, made from ejected lava particles and moderate viscosity.

Cinder Cone Volcano

A volcano that is not currently erupting but is expected to erupt in the future.

Dormant Volcano

The most explosive eruption involving andesitic to rhyolitic magma.

Plinian Eruption

Particles of rock and natural glass produced in the air during an eruption.

Ash

The property of a material’s resistance to flow.

Viscosity

A type of volcano with a flat slope and broad, round shape, formed from repeated eruptions of low-viscosity lava.

Shield Volcano

Composite fluid materials with solid minerals.

Composition of Magma

A violent eruption due to the contact of water and magma.

Phreatomagmatic Eruption

Formed when Earth's pressure and temperatures increase, melting rocks (800°C to 1200°C).

Magma Formation

A type of magma known for low viscosity and usually associated with shield volcanoes.

Basaltic Magma

An eruption that occurs when magma reaches the surface during an explosive event.

Typhoon Eruption

A volcano that is considered dead and is not expected to erupt in the future.

Extinct Volcano