Onoharajima

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

Kde

Japan, Northwestern Pacific Volcanic Regions

Typ (GVP)

Lava dome

Nadmořská výška

114 m

Poloha

34,045°, 139,387°

Onoharajima is considered to be situated behind the true front of the Izu Volcanic Arc, 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). Onoharajima is dominated by andesites of calc-alkaline composition (Onuma et al., 1983).

Text: Smithsonian Global Volcanism Program.

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