Colachi

sopka – Stratovolcano, Chile, South America Volcanic Regions

Kde

Chile, South America Volcanic Regions

Typ (GVP)

Stratovolcano

Nadmořská výška

5 631 m

Tektonické prostředí

Subduction zone / Continental crust (> 25 km)

Poloha

-23,236°, -67,645°

Colachi is a andesitic-dacitic stratovolcano that was constructed on an uplifted block of welded ignimbrites. The most recent activity produced pristine silicic lava flows of probable Holocene age, the largest of which covers a 7 km2 area on the saddle between Colachi and the neighboring volcano of Acamarachi (de Silva and Francis, 1991). A smaller flow was erupted on the W flank. The closely spaced Colachi and Acamarachi volcanoes represent different magmatic systems (Gardeweg 1993, pers. comm.).

Text: Smithsonian Global Volcanism Program.

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