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

Départs garantis:
30 mars - 6 avril 2019: Land of Theseus - Saronic Gulf (Greece)
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
18-26 mai 2019: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
25 mai - 1 juin 2019: Etna Discovery - Etna volcano (Italy)
7-12 juin 2019: Expédition au Volcan Yasur - Vanuatu (Mer du Sud)
8-23 juil. 2019: Du Krakatau à Bali - Java (Indonésie)
3-18 sept. 2019: Du Krakatau à Bali - Java (Indonésie)
12-20 oct. 2019: Montagnes de Feu - du Stromboli à l'Etna - Eoliennes + Etna
: Places libres / : Départ garanti / : Quelques places disponibles / : Groupe fermé
Diaporama
Actualités
vendredi, févr. 03, 2017
Volcanic Ash Advisory Center Montreal (VAAC) issued the following report: ... [details]
 

Fort Selkirk volcan

champ volcanique 1239 m / 4,065 ft
Canada, 62.93°N / -137.38°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
Fort Selkirk livres
Last update: 31 juil. 2017
Style éruptif tipique: Explosive
Eruptions du volcan Fort Selkirk: none in historic times No recent earthquakes
HeureMag. / DepthDistanceLocation
Fort Selkirk is a volcanic field near the junction of the Yukon and Pelly rivers in central Yukon. It is the northernmost young volcanic field in Canada.
The volcano consists of large valley-filling lava flows and 3 cinder cones.
The volcanic field developed at the intersection of two prominent fault lines, one running east-west, marked by the Pelly River and the lower Yukon River, and the other one NW-SE, defined by the upper Yukon River.
The first activity of the volcanic field were effusive, valley-filling eruptions of fluid basalt lava, followed by the construction of 3 cinder cones during strombolian-type eruptions and related emplacement of viscous aa lava flows.

Introduction:

Effusive valley-filling eruptions
The lava flows of the Wolverine Creek Sequence fill the Wolverine Creek. They were probably erupted from a fissure vent at the prominent lobe located at the southeast contact of the Wolverine Sequence. A second vent may be located southeast of Wootton's Cone.

Construction of cinder cones
The filling of Wolverine Creek with basaltic lava was followed by the construction of 3 cinderr cones:
Wootton's Cone (Ne Che Ddhawa) is a sub-glacial pyroclastic cone overlying the older Wolverine Creek Sequence lavas. It is composed primarily of hyaloclastite tuffs, breccias, and pillow breccias, witnesses of the subglacial nature of its formation.
Fort Selkirk Vent is located 4 km downstream from the junction of the Yukon and Pelly Rivers.
Volcano Mountain is a cinder cone containing 3 summit craters and thick blocky aa lava flows spreading at its base. The lack of vegetation suggests a young age, probably only a few hundreds or thousands years.
---
Source: GVP


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.