1. Volcanic plugA volcanic plug, also called a volcanic neck or lava neck, is a volcanic landform created when magma hardens within a vent on an active volcano. When forming, a plug can cause an extreme build-up of pressure if volatile-charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption. If a plug is preserved, erosion may remove the surrounding rock while the erosion-resistant plug remains, producing a distinctive upstanding landform.
Read “Volcanic plug” on English Wikipedia
Read “岩頸” on Japanese Wikipedia
Read “Volcanic plug” on DBpedia
Read “Volcanic plug” on English Wikipedia
Read “岩頸” on Japanese Wikipedia
Read “Volcanic plug” on DBpedia
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