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East Gakkel Ridge at 85 E

East Gakkel Ridge at 85°E

Tipe: Rekahan erupsi
Ketinggian: 3800 m (bawah laut)
Letusan terakhir: 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.

Tipe: Rekahan erupsi
Negara: Fitur bawah laut
Wilayah: Samudra Atlantik / Arctic Ridge Volcanic Province
Ketinggian: 3800 m (bawah laut)
Koordinat: 85.608, 85.250
Letusan terakhir: 1999
Kondisi tektonik: Zona rift / Kerak samudra (< 15 km)
Bentuk lahan: Gugusan gunung api
Batuan utama: Tidak ada data

Ringkasan geologi

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

Kutipan dari Global Volcanism Program, Smithsonian Institution · Baca ringkasan lengkap di GVP →

Riwayat letusan

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Ringkasan catatan

Letusan terkonfirmasi: 1
Letusan tidak pasti: 0
Rentang catatan terkonfirmasi: 1999 – 1999
Letusan terkonfirmasi terbesar: VEI 2 (1999)
Letusan terkonfirmasi sejak 1900: 1

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Garis waktu rinci

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

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