Home > Industry/Domain > Natural environment > 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
Add a new termContributors in Volcano
Volcano
rhyodacite
Natural environment; Volcano
An extrusive rock intermediate in composition between dacite and rhyolite.
rhyolite
Natural environment; Volcano
Volcanic rock (or lava) that characteristically is light in color, contains 69% silica or more, and is rich in potassium and sodium.
rift system
Natural environment; Volcano
The oceanic ridges formed where tectonic plates are separating and a new crust is being created; also, their on-land counterparts such as the East African Rift.
rift zone
Natural environment; Volcano
A zone of volcanic features associated with underlying dikes. The location of the rift is marked by cracks, faults, and vents.
ring of fire
Natural environment; Volcano
The regions of mountain-building earthquakes and volcanoes which surround the Pacific Ocean.
scoria
Natural environment; Volcano
A bomb-size (> 64 mm) pyroclast that is irregular in form and generally very vesicular. It is usually heavier, darker, and more crystalline than pumice.