Granada

sopka – Fissure vent(s), Nicaragua, Middle America-Caribbean Volcanic Regions

Kde

Nicaragua, Middle America-Caribbean Volcanic Regions

Typ (GVP)

Fissure vent(s)

Nadmořská výška

250 m

Tektonické prostředí

Subduction zone / Continental crust (> 25 km)

Poloha

11,900°, -85,979°

The Granada lineament, also known as the La Joya alignment, is an arcuate fissure extending from about 2 km SE of the Apoyo caldera rim around to N of the city of Granada. Small cinder cones are present about 8 km NNW from the Mombacho summit, and the N-S oriented La Joya maar explosion crater chain stretches over 1 km just SW of Granada city. This feature is structurally distinct from the Apoyo caldera and is analogous to the Nejapa-Miraflores alignment north of Masaya volcano. The lineament, characterized by the eruption of basaltic lavas and tephras compositionally similar to mid-ocean ridge basalts, originated about 12,000 years ago, and the latest eruptions may have occurred as recently as about 2,000 years ago.

Text: Smithsonian Global Volcanism Program.

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