Canadá · Cono piroclástico

Crow Lagoon

Tipo: Cono piroclástico
Altitud: 335 m
Última erupción: Desconocido

A geologist observes the contact between a basaltic Plinian fallout lapilli unit overlying marine clay. This deposit is part of thick beds of basaltic Holocene tephra originating from an unknown Quaternary volcanic center found near Crow Lagoon, north of Prince Rupert near the southern tip of the Alaskan panhandle. Ballistically emplaced bombs imply a nearby source. The tephra beds are located along the south side of the Khutzeymateen Inlet, about 40 km N of Prince Rupert. · Foto: Photo by Jack Souther (Geological Survey of Canada, courtesy of Cathie Hickson).

Tipo: Cono piroclástico
País: Canadá
Región: América del Norte / Northern Cordilleran Volcanic Province
Altitud: 335 m
Coordenadas: 54.700, -130.230
Última erupción: Desconocido
Contexto tectónico: Intraplaca / Corteza continental (> 25 km)
Forma volcánica: Menor
Roca principal: Basalto / Picrobasalto

Resumen geológico

Thick deposits of Holocene basaltic tephra originating from an unknown volcanic center have been found near Crow Lagoon, ~40 km N of Prince Rupert near the southern tip of the SE Alaskan panhandle. The deposits are located along the S side of the Khutzeymateen Inlet. Ballistically emplaced bombs imply a nearby source, which remains unidentified (Souther and Weiland, 1993).

Resumen de Wikipedia

Resumen en inglés

Crow Lagoon is a little-known volcanic center located north of Prince Rupert, British Columbia, Canada. There are beds of thick, basaltic tephra that are of Holocene age.

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