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Volcano ... This article is about the geological feature. For other uses, see Volcano (disambiguation) and Volcanic (disambiguation). A volcano is a rupture in ...
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A volcano is a mountain that has lava (hot, liquid rock) coming out from a magma chamber under the ground, or did have in the past. Volcanoes are formed by ...
Magmatic eruptions are the most well-observed type of eruption. They involve the decompression of gas within magma that propels it forward. Phreatic eruptions ...
Volcanic eruptions can generally be characterized as either explosive eruptions, sudden ejections of rock and ash, or effusive eruptions, relatively gentle ...