Ol Doinyo Lengai

Ol Doinyo Lengai is an extraordinary stratovolcano in northern Tanzania (2.751°S, 35.902°E, 2890m, map) producing natro-carbonatitic lava, very rich in sodium and carbonates. It is highly fluid and emerges at 500 to 590°C only. It glows dull red in the dark and is the «coolest» lava of any known volcano. Major ash eruptions were observed in 1917, 1926, 1940 and 1966-67 (image). Since April 1983 lava has been extruded and gradually has been filling up the summit crater: (photos by Bell, Keller and Haefeli).

2001 Normal activity
Paroxysm by day
Paroxysm by night
2003 Fountains and ash
Stalactites
Microcosmos
Life in the Crater
Aerial photos
Rift Valley People
Maasai Market
Video 1
Video 2
QTVR 2001
QTVR 2003
1995 & links