Volcano

Volcano

A vent or opening in a planet's surface that lets out pressurized molten rocks or magma, and gases from the inner core. Volcanoes come in various shapes and structure, but the most common ones are mountain-like structures with a crater at the summit.

Industry: Natural environment

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Volcano

Mount Ruapehu

Natural environment; Volcano

Mount Ruapehu is an active statovolcano on the North Island, New Zealand. It is the largest active volcano in New Zealand and erupts at roughly 50 year intervals. The most recent 1995-6 eruptions ...

Nevado del Ruiz

Natural environment; Volcano

The Nevado del Ruiz is a volcano in Columbia, 80 miles (129 kilometres) away from Bogotá. There have been three major eruptions in 1595, 1845 and 1985, the latter resulting in 25,000 deaths when a ...

Krakatoa

Natural environment; Volcano

Krakatoa is a volcanic island made of lava between the islands of Java and Sumatra in Indonesia. In 1883 the volcano exploded, killed 40,000 people and making the loudest sound ever heard in history ...

'a'a

Natural environment; Volcano

Hawaiian word used to describe a lava flow whose surface is broken into rough angular fragments.

accessory

Natural environment; Volcano

A mineral whose presence in a rock is not essential to the proper classification of the rock.

accidental

Natural environment; Volcano

Pyroclastic rocks that are formed from fragments of non-volcanic rocks or from volcanic rocks not related to the erupting volcano.

accretionary lava ball

Natural environment; Volcano

A rounded mass, ranging in diameter from a few centimeters to several meters, (carried) on the surface of a lava flow (e.g., 'a'a) or on cinder-cone slopes (and formed) by the molding of viscous lava ...