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Formazioni sottomarine · Frattura eruttiva

East Gakkel Ridge at 85 E

East Gakkel Ridge at 85°E

Tipo: Frattura eruttiva
Altitudine: 3800 m (sottomarino)
Ultima eruzione: 1999

Detailed bathymetry of the East Gakkel Ridge at 85°E in the Arctic Ocean. The inset map shows the location of the 85°E segment (yellow star) along the Gakkel Ridge (red line). The main panel shows illuminated color bathymetry (30-m grid spacing) of the 85°E segment acquired during the AGAVE expedition. The axial valley contains large numbers of distinctive, cratered volcanoes, including a cone on a fault terrace of the northern valley wall. Named features include two volcanic ridges in the center of the axial valley (Jessica’s Hill and Duque’s Hill), and three cratered volcanoes along a ridge-parallel fissure to the south (Oden, Thor, and Loke). The bathymetry data were plotted with Generic Mapping Tools. — Detailed bathymetry of the East Gakkel Ridge at 85°E in the Arctic Ocean. The inset map shows the location of the 85°E segment (yellow star) along the Gakkel Ridge (red line). The main panel shows illuminated color bathymetry (30-m grid spacing) of the 85°E segment acquired during the AGAVE expedition. The axial valley contains large numbers of distinctive, cratered volcanoes, including a cone on a fault terrace of the northern valley wall. Named features include two volcanic ridges in the center of the axial valley (Jessica’s Hill and Duque’s Hill), and three cratered volcanoes along a ridge-parallel fissure to the south (Oden, Thor, and Loke). The bathymetry data were plotted with Generic Mapping Tools. · Foto: Sohn et al., 2008. Explosive volcanism on the ultraslow-spreading Gakkel ridge, Arctic Ocean. Nature, v. 453, p. 1236-1238.

Tipo: Frattura eruttiva
Paese: Formazioni sottomarine
Regione: Oceano Atlantico / Arctic Ridge Volcanic Province
Altitudine: 3800 m (sottomarino)
Coordinate: 85.608, 85.250
Ultima eruzione: 1999
Contesto tettonico: Zona di rift / Crosta oceanica (< 15 km)
Forma vulcanica: Gruppo vulcanico
Roccia principale: Nessun dato

Sintesi geologica

Originale in inglese

During January-September 1999 global seismic networks detected an earthquake swarm along the East Gakkel Ridge (near 86°N, 85°E).

Estratto dal Global Volcanism Program, Smithsonian Institution · Leggi la sintesi completa sul GVP →

Storia delle eruzioni

1 registrateGlossario

Sintesi del registro

Eruzioni confermate: 1
Eruzioni incerte: 0
Arco del registro confermato: 1999 – 1999
Eruzione confermata più grande: VEI 2 (1999)
Eruzioni confermate dal 1900: 1

Riepilogo (VEI nel tempo)

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Cronologia dettagliata

1999VEI 2Osservata
1999-04-05 – 1999-04-15
East Gakkel Ridge

Vulcani nelle vicinanze

Link esterni

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Pagina originale Smithsonian GVP

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