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Barrier

Barrier, The

Gunung api perisai · Kenya · 1032 m

A northward-looking aerial view shows the summit caldera of Kakorinya volcano of The Barrier volcanic complex with Lake Turkana in the distance. The 3.8-km-wide summit caldera was formed about 92,000 years ago, and post-caldera lava domes and flows fill much of the caldera floor. Fresh-looking lava flows and tuff cones occur along the shores of Lake Turkana. Teleki's Cone on the northern flank and Andrew's Cone (lower left foreground) on the southern flank have been the source of historical lava flows.
A northward-looking aerial view shows the summit caldera of Kakorinya volcano of The Barrier volcanic complex with Lake Turkana in the distance. The 3.8-km-wide summit caldera was formed about 92,000 years ago, and post-caldera lava domes and flows fill much of the caldera floor. Fresh-looking lava flows and tuff cones occur along the shores of Lake Turkana. Teleki's Cone on the northern flank and Andrew's Cone (lower left foreground) on the southern flank have been the source of historical lava flows. · Foto: Photo by Martin Smith, 1993 (copyright British Geological Survey, NERC).
Tipe
Gunung api perisai
Negara
Kenya
Wilayah
Eastern Africa Volcanic Regions / Kenyan Rift Volcanic Province
Ketinggian
1032 m
Koordinat
2.320, 36.570
Letusan terakhir
1921
Kondisi tektonik
Rift zone / Continental crust (> 25 km)
Bentuk lahan
Shield
Batuan utama
Trachyte / Trachydacite
Ringkasan geologi

The Barrier volcanic complex separates Lake Turkana from the broad Suguta Trough to the S, the site of a former lake. The volcano is comprised of four overlapping shield volcanoes, with the youngest, Kakorinya, located over the axis of the East African Rift. Kalolenyang volcano lies W of Kakorinya, and Likaiu West and Likaiu East are located to the ENE. A 3.8-km-wide summit caldera was formed at Kakorinya about 92,000 years ago. Youthful-looking trachytic and phonolitic lava domes and flows erupted within the caldera and along its ring fracture fill much of the caldera floor. Early Holocene fissure-related scoria cones and lava flows dot the S and N flanks. Solfataric fields are located within the caldera and on the W and S flanks. Historical eruptions from Teleki's and Andrew's cones on the N and S flanks, respectively, have produced basaltic explosive activity and lava flows during the 19th and 20th centuries.

Ringkasan Wikipedia

Ringkasan Inggris

The Barrier is an active shield volcano located in the north of Kenya. It is last known to have erupted in 1921.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
7710 BCE~7389 BCE · 1 letusan · VEI maks. ?958~1279 · 3 letusan · VEI maks. 01600~1921 · 8 letusan · VEI maks. 27710 BCE5463 BCE2894 BCE647 BCE1600

Garis waktu rinci

  1. 1921VEI 2Teramati
    1921-12-31 – Berlangsung
    North flank (Teleki)
  2. 1920 (±3 tahun)VEI ?Perkiraan geologi
    1920 – Berlangsung
    South flank (Andrew's Volcano)
  3. 1917VEI 2Teramati
    1917 – Berlangsung
    Andrew's or Teleki's Volcanoes
  4. 1906VEI ?Perkiraan geologi
    1906 – Berlangsung
    Andrew's or Teleki's Cones
  5. 1897VEI 2Teramati
    1897-05 – Berlangsung
    North flank (Teleki) and Likaiu
  6. 1895VEI 2Teramati
    1895 – Berlangsung
    North flank (Teleki's Cone)
  7. 1888VEI 0Teramati
    1888 – Berlangsung
    North flank (Teleki's Cone)
  8. 1871 (±3 tahun)VEI 2Teramati
    1871 – Berlangsung
    North flank (Teleki's Cone)
  9. 1090 (±50 tahun)VEI 0Perkiraan geologi
    1090 – Berlangsung
    North flank
  10. 1050 (±150 tahun)VEI 0Perkiraan geologi
    1050 – Berlangsung
    North flank
  11. 1030 (±150 tahun)VEI 0Perkiraan geologi
    1030 – Berlangsung
    North flank
  12. 7710 SM (±200 tahun)VEI ?Perkiraan geologi
    BCE 7710 – Berlangsung
    North (Abili Agituk) and south flanks

Tautan eksternal

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