Apoyeque

sopka – Caldera, Nicaragua, Middle America-Caribbean Volcanic Regions

Kde

Nicaragua, Middle America-Caribbean Volcanic Regions

Typ (GVP)

Caldera

Nadmořská výška

518 m

Tektonické prostředí

Subduction zone / Continental crust (> 25 km)

Poslední známá erupce

50 př. n. l.

Poloha

12,242°, -86,342°

The Apoyeque volcanic complex occupies the broad Chiltepe Peninsula, which extends into south-central Lake Managua. The peninsula is part of the Chiltepe pyroclastic shield volcano, one of three large ignimbrite shields on the Nicaraguan volcanic front. A 2.8-km wide, 400-m-deep, lake-filled caldera whose floor lies near sea level truncates the low Apoyeque edifice, which rises only about 500 m above the lake shore. The caldera was the source of a thick deposit of dacitic pumice that covers the surrounding area. The 2.5 x 3 km lake-filled Xiloá (Jiloá) maar is located immediately SE of Apoyeque. The Talpetatl lava dome was constructed between Laguna Xiloá and Lake Managua. Pumiceous pyroclastic flows from Laguna Xiloá were erupted about 6,100 years ago and overlie deposits of comparable age from the Masaya Plinian eruption.

Text: Smithsonian Global Volcanism Program.

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