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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 ...
This article contains a list of volcanoes in the United States and its territories. Contents. 1 Alaska; 2 American Samoa; 3 Arizona; 4 California ...