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Fitur bawah laut · Rekahan erupsi

Cleft Segment

Tipe
Rekahan erupsi
Ketinggian
2140 m (bawah laut)
Letusan terakhir
1986
These black smoker vents are located along the Cleft Segment, the southernmost segment of the Juan de Fuca Ridge. These sustained high-temperature vents were photographed along fissures that fed an older lava flow adjacent to a 1986 lava flow that was erupted during the second of two documented submarine eruptions in the 1980s. The 80-km-long Cleft Segment is located immediately north of the Blanco Fracture Zone about 500 km off the Oregon coast.
These black smoker vents are located along the Cleft Segment, the southernmost segment of the Juan de Fuca Ridge. These sustained high-temperature vents were photographed along fissures that fed an older lava flow adjacent to a 1986 lava flow that was erupted during the second of two documented submarine eruptions in the 1980s. The 80-km-long Cleft Segment is located immediately north of the Blanco Fracture Zone about 500 km off the Oregon coast. · Foto: Image courtesy of National Oceanic and Atmospheric Administration (http://www.pmel.noaa.gov/vents/home.html).
Tipe
Rekahan erupsi
Negara
Fitur bawah laut
Wilayah
Pasifik Timur / Northeast Pacific Rifts Volcanic Province
Ketinggian
2140 m (bawah laut)
Koordinat
44.830, -130.300
Letusan terakhir
1986
Kondisi tektonik
Zona rift / Kerak samudra (< 15 km)
Bentuk lahan
Gugusan gunung api
Batuan utama
Basal / Pikrobasal

Ringkasan geologi

Teks asli bahasa Inggris

The Cleft Segment, the southernmost of the Juan de Fuca Ridge, lies immediately north of the Blanco Fracture Zone.

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

Riwayat letusan

3 tercatatGlosarium

Ringkasan catatan

Letusan terkonfirmasi
3
Letusan tidak pasti
0
Rentang catatan terkonfirmasi
270 SM – 1986
Letusan terkonfirmasi terbesar
VEI 0 (1986, yang terbaru dari 3)
Letusan terkonfirmasi sejak 1900
2
Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu · Gunakan tombol panah untuk berpindah batang, Enter untuk membuka
270 SM~82 SM · 1 letusan · VEI maks. 01798~1986 · 2 letusan · VEI maks. 0270 SM29485812341798

Garis waktu rinci

  1. 1986VEI 0Teramati
    1986-08-16 – akhir tidak diketahui
    N Cleft Segment, S Juan de Fuca Ridge
  2. 1982VEI 0Teramati
    1982-07-02 – akhir tidak diketahui
    N Cleft Segment, S Juan de Fuca Ridge
  3. 270 SMVEI 0Perkiraan geologi
    270 SM – akhir tidak diketahui
    S Cleft Segment, S Juan de Fuca Ridge

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