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Geological Formation

Volcanic Plug

Volcanic Formations

A volcanic plug, also called a volcanic neck or lava neck, forms when magma hardens within the vent of an active volcano. A plug can trap rising, volatile-charged magma beneath it, allowing gas pressure to build to extreme levels and sometimes triggering an explosive eruption; in a Plinian eruption, the plug itself is destroyed and ejected as ash.

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Volcanism, Processes
Source Wikipedia: Volcanic plug

In Discipline

Source Wikipedia: Volcanic plug
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Wikipedia: Volcanic plug
Wikipedia
  • In Discipline: Volcanology, Lead paragraph
    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
  • Caused By: Volcanism, Lead paragraph
    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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