lava dome

English

Noun

lava dome (plural lava domes)

(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

Circular mound shaped bulge built up from lava

Spanish: domo de lava m, domo tapón m

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