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volcanism Definition

vol·can·ism (välkə niz′əm, vôl-)

noun

volcanic activity or phenomena

Etymology: Fr volcanisme

volcanism Usage Examples

Adjective modifier

  • active: Discovery of active volcanism on the satellite Io was probably the greatest surprise.
  • explosive: It outlines how results from research at Soufriere Hills, Montserrat and Mount St Helens are beginning to transform the understanding of explosive volcanism.
  • recent: A reanalysis of the Mariner data provides some preliminary evidence of recent volcanism on Mercury.

Modifies a noun

  • program: A link is provided to the Smithsonian's Global Volcanism Program for information on active volcanoes.

Noun used with modifier

  • intra-plate: A common explanation for the hot-spots that cause intra-plate volcanism is the existence of steady plumes rising from the core-mantle boundary.