Get our newsletter!
Voyages aux volcans actifs !
Volcanoes & Earthquakes - new app for Android
Départs garantis:
16-20 janv. 2019: Etna Volcan Spécial - Etna
9-22 févr. 2019: Désert, sels et volcans - Désert de Danakil (Éthiopie)
2-17 mai 2019: Du Krakatau à Bali - Java (Indonésie)
4-11(12) mai 2019: Fascinant Volcan et la Légende de l'Atlantide - Île de Santorin, Grèce
4-12 mai 2019: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
11-19 mai 2019: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
7-12 juin 2019: Expédition au Volcan Yasur - Vanuatu (Mer du Sud)
8-16 juin 2019: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
14-30 juin 2019: Volcans et Épices - Mer des Moluques (Sulawesi, Indonésie)
8-23 juil. 2019: Du Krakatau à Bali - Java (Indonésie)
: Places libres / : Départ garanti / : Quelques places disponibles / : Groupe fermé
Diaporama

Tromen volcan

stratovolcan 3978 m / 13,051 ft
Argentine/Chili (centre), South America, -37.14°S / -70.03°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Tromen livres
Style éruptif tipique: explosive
Eruptions du volcan Tromen: 1822, 1751No recent earthquakes
HeureMag. / DepthDistanceLocation
Tromen volcano is a stratovolcano in NW Argentina, and lies at the northern end of an elongated volcanic massif. The summit of Tromen is cut by two overlapping 3.5-km-wide calderas.

Introduction:

Tromen is part of a andesitic-to-rhyolitic volcanic massif with several centers aligned N-S. The older Pleistocene Volcán Cerro Negro del Tromen with a 5-km-wide caldera lies immediately north of Tromen. Lava flows from Tromen have partially overtopped the northern caldera rim.
At the SSW end this chain is Cerro Tilhue, of Pleistocene-Holocene age, also with a caldera. Post-caldera vents at Tromen have erupted inside both calderas and on the flanks of the NE-most caldera.
The youngest lava flows at Tromen originated from flank vents and descended the north and NE sides of the volcanic complex. Other Holocene vents are also located in the Cerro Michico area on the lower NE flank.
Historical eruptions of Tromen were reported in the mid-18th century and in 1822.

Tromen volcano and the Neuquén back-arc bassin
Tromem is a back-arc volcano, in the eastern Neuquén back-arc basin and located some 150 km E of the current main volcanic arc. The lavas from the Tromen massif are mainly basaltic as typical for back-arc volcanoes. The basement sedimentary rock is more deformed than its thin volcanic cover.
Since the Late Cretaceous, the Neuquen basin has undergone compression and significant E-W shortening, along folds and faults trending in N-S direction. Volcanic activity in the basin has been almost continuous for 2 million years, and Tromen is one of the first studied examples where magma reaches the surface in a strongly compressional setting.
---
Sources:
- GVP Tromen volcano information
- O. Galland, E. Hallot, P. R. Cobbold, G. Ruffet, & J. de Brémond d'Ars (2005) "Coeval volcanic activity and tectonic shortening, Tromen volcano, Neuquén province, Argentina", 6th International Symposium on Andean Geodynamics (ISAG 2005, Barcelona), Extended Abstracts: 293-296

Tromen Photos:




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.