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Fitur bawah laut · Rekahan erupsi

Southern EPR-Segment I

Southern EPR at 18.5°S (Segment I)

Tipe
Rekahan erupsi
Ketinggian
2600 m (bawah laut)
Letusan terakhir
1915
Black smoker vents emitting low-chlorinity fluids at 374°C were photographed at the "RM28" site at 18°26’S on Segment I of the Southern East Pacific Rise in November 1994 from the Japanese submersible Shinkai 6500. The narrow axial crest of Segment I of the Southern East Pacific Rise in some places is less than 50 m wide. The largest lava flow field in this area is the Animal Farm flow, named after a thriving low-temperature hydrothermal site discovered during a 1993 submersible expedition.
Black smoker vents emitting low-chlorinity fluids at 374°C were photographed at the "RM28" site at 18°26’S on Segment I of the Southern East Pacific Rise in November 1994 from the Japanese submersible Shinkai 6500. The narrow axial crest of Segment I of the Southern East Pacific Rise in some places is less than 50 m wide. The largest lava flow field in this area is the Animal Farm flow, named after a thriving low-temperature hydrothermal site discovered during a 1993 submersible expedition. · Foto: Image courtesy of NOAA Vents Program, 1994 (www.pmel.noaa.gov/vents/chemistry/images/).
Tipe
Rekahan erupsi
Negara
Fitur bawah laut
Wilayah
Pasifik Selatan / Southern East Pacific Rise Volcanic Province
Ketinggian
2600 m (bawah laut)
Koordinat
-18.530, -113.420
Letusan terakhir
1915
Kondisi tektonik
Zona rift / Kerak samudra (< 15 km)
Bentuk lahan
Gugusan gunung api
Batuan utama
Basal / Pikrobasal
Ringkasan geologi

The narrow axial crest of Segment I of the Southern East Pacific Rise in some places is less than 50 m wide. An axial dome is located along the southern part of the segment. The largest lava flow field in this segment is the Animal Farm flow, named after a thriving low-temperature hydrothermal site discovered during a submersible expedition in 1993. The Animal Farm lava flow was dated by magnetic paleointensity measurements at about 1880-1950 CE, and older flows were dated by similar techniques to the 17th and 19th centuries.

Riwayat letusan

3 tercatatGlosarium
Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu · Gunakan tombol panah untuk berpindah batang, Enter untuk membuka
1620~1650 · 1 letusan · VEI maks. 01856~1886 · 1 letusan · VEI maks. 01886~1915 · 1 letusan · VEI maks. 016201679176818271886

Garis waktu rinci

  1. 1915 (±40 tahun)VEI 0Perkiraan geologi
    1915-07-02 – akhir tidak diketahui
  2. 1860VEI 0Perkiraan geologi
    1860-07-02 – akhir tidak diketahui
  3. 1620VEI 0Perkiraan geologi
    1620 – akhir tidak diketahui

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Tautan eksternal

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