The set of geological processes that result in the expulsion of lava, pyroclastics, and the volcanic venting effects associated with volcanoes: hot springs, smoking, and fumaroles. Synonym to vulcanism.
The processes by which magma and gases are transferred from Earth's interior to the surface.
The set of geological processes that result in the expulsion of lava, pyroclastics, and gases at the Earth's surface.
The process whereby magma and its associated gases rise through the crust and are extruded onto the surface or into the atmosphere.
The processes that form volcanoes; the progress of magma as it rises up through the crust, emerges onto the surface as lava, and solidifies into volcanic rocks and landforms.
Geological process which involved the eruption of molten rock.
n. The process by which magma and associated gases rise to the Earth's crust and are extruded, or expelled, onto the surface and into the atmosphere.
The eruption of molten material or gas-driven solid fragments onto the surface of a planetary body. On icy moons the phenomenon is sometimes called cryovolcanism to distinguish it from silicate or sulfur volcanism.
Pertaining to the phenomena of volcanic eruption, the explosive or quiet emission of lave, pyroclastic ejecta or volcanic gases at the earthâ€(tm)s surface, usually from a volcano.
The movement of molten rock, by way of volcanoes, fissures, vents, etc., to the Earth's surface, where it cools into extrusive (volcanic) igneous rocks.