What is Lava dome?
[[File:MSH06 aerial crater from north high angle 09-12-06.jpg|right|300px|thumbnail|Lava domes in the crater of [[Mount St. Helens]].]] In [[volcanology]], a '''lava dome''' or '''plug dome''' is a round-shaped mound created by the [[Volcanic eruption|eruption]] of [[viscosity|viscous]] [[lava]] by a [[volcano]]. Lava domes are formed when erupting lava is too thick to flow and makes a steep-sided mound as the lava piles up near the volcanic vent. Lava domes have formed in Mount St. Helens and experts say a lava dome is growing inside the Shinmoedake volcano in Japan. {{sci-stub}} [[Category:Volcanology]]