Get our newsletter!
Voyages aux volcans actifs !
Volcanoes & Earthquakes - new app for Android
Volcanoes & Earthquakes - app for iPhone & iPad

Départs garantis:
25 mai - 1 juin 2019: Etna Discovery - Etna volcano (Italy)
15-30 juin 2019: Du Krakatau à Bali - Java (Indonésie)
8-23 juil. 2019: Du Krakatau à Bali - Java (Indonésie)
12-30 août 2019: Kamchatka - Land of Colors - Kamchatka (Russia)
13-29 août 2019: Les volcans actifs de Java - Java (Indonésie)
14-17 août 2019: Spécial Volcan Krakatau - Le Krakatau, détroit de la Sonde
1-19 sept. 2019: Kamchatka - Land of Colors - Kamchatka (Russia)
3-18 sept. 2019: Du Krakatau à Bali - Java (Indonésie)
: Places libres / : Départ garanti / : Quelques places disponibles / : Groupe fermé
Diaporama
Actualités

Pas d'article dans la liste.

 

Socompa volcan

stratovolcan 6051 m / 19,852 ft
Chile / Argentine (nord) + Bolivie, South America, -24.4°S / -68.25°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Socompa livres
Style éruptif tipique: explosive
Eruptions du volcan Socompa: 5250 BC (?)
HeureMag. / DepthDistanceLocation
Sat, 4 May 2019
Sat, 4 May 09:44 UTCM 3.0 / 136.3 km6 km74 km al S de Socaire (Chile)
Socompa is a massive stratovolcano on the Chile/Argentina border. It is located at the southeastern end of the Atacama Basin and immediately north of the only railway line between Chile and Argentina.
The dacite volcano is known for having the world's largest and best preserved debris avalanche deposit in the world.
No historical eruptions are known from Socompa.

Introduction:

Socompa is the youngest and southernmost of a 6000-m-high NE-SW-trending chain of volcanoes including also Pular and Pajonales volcanoes. In contrast to the latter 2 volcanoes, no glacial moraines have been detected on the relatively uneroded Socompa volcano.

The Socompa debris avalanche deposit
Collapse of the NW portion of Socompa volcano occurred about 7200 years ago, during an eruption similar to that at Mount St. Helens in 1980. Before the eruption, the mountain had an estimated height of 6300 m. It produced a debris avalanche that flowed down for 40 km to elevations of between 3100-3400 m into the Monturaqui Basin. The deposit covers a total of 600 sq km. Eruptions after the collapse have constructed dacitic lava domes and filled much of the upper portion of the collapse scarp. It is the largest known of its kind debris avalanche deposit on earth.

High altitude photoautotrophic communities at Socompa
Fumarolic activity between 5750-6060 m at Socompa's summit supports the growth of mat-like photoautotrophic communities. They are the world's highest known autotrophic communities and include mosses, liverworts, algae, fungi, and lichens.
Such extremely harsh environments where hydrothermal systems combine with aridity, cold temperatures, high UV radiation and low atmospheric pressure are unique habitats for life on Earth and represent interesting analogs for habitable zones on Mars.
Source: Costello et al (2009) "Fumarole-Supported Islands of Biodiversity within a Hyperarid, High-Elevation Landscape on Socompa Volcano, Puna de Atacama, Andes" APPLIED AND ENVIRONMENTAL MICROBIOLOGY, Feb. 2009, pp 735–747


Derniers images satellite

 

Plus sur VolcanoDiscovery:

Copyright: VolcanoDiscovery ou autres sources indiquées.
Utilisation des documents: Les textes, les images et les vidéos de ce site internet sont protégées par copyright. Toute reproduction et tout usage sans accord préalable ne sont pas autorisés. Si vous désirez acquérir pour certains documents (photos, vidéos, textes ou autres) le droit de reproduction, d'édition et, plus généralement, de toute utilisation destinée à un usage public, qu'elle soit commerciale ou pas, vous êtes priés de nous contacter.