English

Noun

lava dome ‎(plural lava domes)

1. (geology) A roughly circular mound-shaped bulge that builds up from the slow eruption of viscous felsic lava from a volcano.

   Lava domes are rarely seen in shield volcanos, but are common in stratovolcanos because the latter have more silicic magmas.

   Mount St. Helens has been building a new lava dome since the May, 1980 eruption.

Translations