This group collects the Volcanic Formations subcategory's members whose own description identifies them as a volcanic plug, volcanic neck or hardened magma plug, the solidified core of magma left standing after the softer volcanic cone that once surrounded it has eroded away. Shiprock, Sigiriya Rock and Wolf Rock are among this group's named plugs and necks, each the resistant remnant of an otherwise vanished volcanic edifice.
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Defining ProcessCreated when magma hardens within a vent on an active volcano. 1 Browse By
Volcanic Plugs and Necks
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Sources
1. Wikipedia: Volcanic plug
WikipediaVolcanic plug, lead sectionQuote, Volcanic plug, lead section
A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano.
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