Longavi, Nevado de

sopka – Stratovolcano, Chile, South America Volcanic Regions

Kde

Chile, South America Volcanic Regions

Typ (GVP)

Stratovolcano

Nadmořská výška

3 175 m

Tektonické prostředí

Subduction zone / Continental crust (> 25 km)

Poslední známá erupce

4 890 př. n. l.

Poloha

-36,196°, -71,164°

The conical Nevado de Longaví is a late-Pleistocene to Holocene, dominantly andesitic stratovolcano constructed over a basement of Tertiary volcaniclastic and granitic rocks. Two edifice-collapse events modified the E and SW flanks of a pre-Holocene edifice, and Holocene activity has been concentrated at the summit and on the E flanks. Andesitic-to-dacitic lava domes occupy the summit region. The latest eruptions produced a lava dome in the upper part of the collapse scarp and summit region that partially collapsed to the E, forming block-and-ash flow deposits. Fumarolic activity has been reported.

Text: Smithsonian Global Volcanism Program.

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