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Kenya · Cono di tufo

North Island

Lake Turkana North Island

Tipo: Cono di tufo
Altitudine: 490 m
Ultima eruzione: Sconosciuto

North Island in the north-central part of Lake Turkana is the northernmost and smallest of three volcanic islands in the lake. The two darker lava flows originated from a central tuff ring and formed lava deltas. The broad northern flow (left) originated from a vent on the flank and produced a 900-m-wide, lobate delta. The western flow (lower right) moved from the central vent through a breach in the western crater wall. Fumarolic activity occurs along the light-colored ridge at the top and along the SW coast. — North Island in the north-central part of Lake Turkana is the northernmost and smallest of three volcanic islands in the lake. The two darker lava flows originated from a central tuff ring and formed lava deltas. The broad northern flow (left) originated from a vent on the flank and produced a 900-m-wide, lobate delta. The western flow (lower right) moved from the central vent through a breach in the western crater wall. Fumarolic activity occurs along the light-colored ridge at the top and along the SW coast. · Foto: Photo by Martin Smith, 1993 (copyright British Geological Survey, NERC).

Tipo: Cono di tufo
Paese: Kenya
Regione: Africa orientale / Kenyan Rift Volcanic Province
Altitudine: 490 m
Coordinate: 4.063, 36.046
Ultima eruzione: Sconosciuto
Contesto tettonico: Zona di rift / Crosta continentale (> 25 km)
Forma vulcanica: Minore (basaltico)
Roccia principale: Trachiandesite / Trachiandesite basaltica

Sintesi geologica

Originale in inglese

The 2-km-wide North Island in Lake Turkana is the northernmost and smallest of three volcanic islands in the lake.

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

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Pagina originale Smithsonian GVP

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