Udonejima

sopka (bez známé erupce za posledních ~12 000 let), Japan, Northwestern Pacific Volcanic Regions

Kde

Japan, Northwestern Pacific Volcanic Regions

Typ (GVP)

Stratovolcano

Nadmořská výška

209 m

Poloha

34,469°, 139,297°

Udonejima, though technically part of the Izu Volcanic Arc, is actually considered to be situated just behind the true volcanic front, along a line of volcanoes that is oblique to the Izu Trench. The volcanic rocks of this lineament are characterized by high-alumina basalts, calc-alkaline basalts, andesites, and rhyolites (Onuma et al., 1983). The andesites are rich in pyroxene, and the rhyolites often contain hypersthene, hornblende, and biotite (Onuma et al., 1983).

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.