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 (vŏl′kə-nĭz′əm) also vul·ca·nism (vŭl′-)
1. Volcanic force or activity.
2. The phenomena associated with volcanic activity.


(ˈvɒlkəˌnɪzəm) or


(Geological Science) those processes collectively that result in the formation of volcanoes and their products


(ˈvɒl kəˌnɪz əm)

also vulcanism

the phenomena connected with volcanoes and volcanic activity.


the phenomena connected with volcanoes and volcanic activity. Also vulcanism.volcanist, n.
See also: Volcanoes
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.volcanism - the phenomena associated with volcanic activityvolcanism - the phenomena associated with volcanic activity
geological phenomenon - a natural phenomenon involving the structure or composition of the earth
References in periodicals archive ?
Earthquakes can be linked to small volcanic eruptions, so the Chicxulub impact--which would have caused the equivalent of a magnitude 10 quake or greater--could have shifted Deccan volcanism, Renne says.
Contract award: public service delegation for the operation of the european park of volcanism / vulcania.
Together, the impact and volcanism caused a dramatic change in climate as the sun was blanked out in a "nuclear winter".
Courtillot, who is familiar with the Princeton work but had no role in it, led a team that reported in the Journal of Geophysical Research in 2009 that Deccan volcanism occurred in three phases, the second and largest of which coincides with the K-Pg mass extinction.
The researchers were surprised by these findings as the planet wasn't supposed to have explosive volcanism in the first place; they have also said that this could have implications for understanding how Mercury formed.
Understanding Open-Vent Volcanism and Related Hazards
This type of volcanism falls under the umbrella of "Plate hypothesis" volcanism.
To better understand these ancient, mineral-rich deposits, a Laurentian University professor recently travelled half a world away to study deposits currently being formed by volcanism under the ocean.
water view Iceland's Lake Myvatn is in area of active volcanism
The focus for the trip to Italy was to find out more about the volcanism and the impact on the surrounding area.
Known in South America as Volcan Copahue, the volcano formed about 500,000 years ago and contains nine craters, according to the Washington-based Smithsonian museum's Global Volcanism Program.
Among these was basaltic volcanism spread on both sides of the fracture zone during the Late Neogene and Pleistocene.