Do this automatically from now on
Fayal volcanstratovolcan, lavadome 1043 m
Azores, Portugal, 38.6°N / -28.83°W Condition actuelle: en sommeil (1 sur 5)
Dernière mise à jour: 4 juin 2012
Style éruptif tipique: Explosive Eruptions du volcan Fayal: 1957-58 Derniers séismes proches:
Introduction:The island is composed of a complex large andesitic-to-trachytic stratovolcano that contains a 2-km-wide summit caldera. Thick deposits of trachytic airfall pumice, pyroclastic flows, and lahars related to formation of the caldera blanket the island. Formation of the steep-walled 500-m-deep caldera was followed by construction of fissure-fed basaltic lava fields and small volcanoes that form a peninsula extending to the west. This area is covered by the youngest volcanic products on the island and has been the source of all historical eruptions. A dramatic submarine eruption at Capelinhos during 1957-58, the best-studied of historical eruptions in the Azores, created a new island that soon merged with the western peninsula.----------------------------------- Source: Smithsonian GVP |
 Cliquez ici pour recommander cette page à un ami
| |||||||||||||||
