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出典:Wiktionary
From French volcanisme, from volcan (“volcano”); and/or directly from volcan(o) + -ism.
volcanism (countable かつ uncountable, 複数形 volcanisms)
出典:Wikipedia
出典:『Wikipedia』 (2011/06/26 15:02 UTC 版)
Volcanism is the phenomenon connected with volcanoes and volcanic activity. It includes all phenomenon resulting from and causing magma (from the mantle within a planet) to rise through the crust to form volcanic rocks.
Volcanism