Spattering and lava flows of carbonatite lava inside the deep summit crater of Lengai have been recently observed by climbers. The crater which formed during explosive activity in 2008 is gradually being filled by spatter cones and small lava flows.
Our friend Michael Dalton-Smith flew over Lengai 10 Oct 2010 and snapped a few shots of the crater. There were some recent small lava flows inside the new crater. Also there we signs that new cone has had some more minor collapses on the inside. He could not tell 100%, but there looks like a small lava lake. ...
An explosive eruption from Tanzania's Ol Doinyo volcano in 1966. Explosive activity began in August 1966, near the end of an eruption beginning in 1960 that consisted of quiet emission of lava flows in the summit crater. Ash deposits from previous eruptions whiten the volcano's slopes like snow. (Photo by Gordon Davies, 1966 / courtesy of Celia Nyamweru, Kenyatta University).
The active north crater of Ol Doinyo Lengai volcano
Observing strombolian eruptions of black natrocarbonatite lava at Lengai volcano
Night-time scene inside the active crater of Lengai
Whitened natrocarbonatite lava and a steep crater cone,- called hornito
Ol Doinyo Lengai volcano eruptions
Stratovolcano 2890 m Tanzania, -2.75°S / 35.9°E Eruption list: 1550 BC (?), 50 AD (?), 700 AD (?), 1350 (?), 1880, 1882, 1904, 1907, 1914, 1916, 1921, 1926, 1940, 1954, 1955, 1958, 1960, 1967, 1983, 1994, 2006, 2007-ongoing
Activity in 2010 - natrocarbonatite flows on the crater bootom
Similarly to previous phases, new natrocarbonatite lava is being erupted from vents at the bottom of the new crater. If this activity continues, it might once again fill the crater.
Fred Belton's extensive website dedicated to Lengai. Fred visits Lengai (almost) every year and comes back with lots of information and observation about the volcano's activity. Extensive News, other links, expedition infos, photos.
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