Natrocarbonatite lava flowing from hornito T51 in July 2000 |
Nighttime lava flow from hornito T58B in July 2004 |
Hornitos on crater floor seen from E rim, July 2004. Dark lava flow is only hours old. |
Front of flows on right image, older flow (hydrated so white), new flow (dark grey) |
.View from summit ridge of Oldoinyo Lengai, July 2004. |
Elevated central portion of crater viewed from E, July 2004 |
Nighttime eruption of hornito T58B in center of crater, July 2004 |
Nighttime eruption of hornito T58B in center of crater, July 2004 |
Nighttime eruption of hornito T58B in center of crater, July 2004 |
Nighttime eruption of vent on SW side of hornito T58B, July 2004 |
Lava flow from vent in flank of hornito T58B, July 2004 |
Dark-coloured recent flow field from T58B, July 2004 |
T58B shows mild spattering, older almost buried cone in foreground |
Lava flow from T58B, people provide scale |
Strombolian activity of vent in flank of hornito T58B, July 2004 |
Lava violently jetting from vent on T58B (1/4) |
Lava violently jetting from vent on T58B (1/4) |
Lava violently jetting from vent on T58B (1/4) |
Lava violently jetting from vent on T58B (1/4) |
Flow field from overnight eruption of T49G, July 2004 |
Lava cascading down flank of hornito T49G, July 2004 |
Lava cascading down flank of hornito T49G, July 2004 |
Channeled carbonatite Pahoehoe flow, Crater floor, July 2004 |
Lava from T49G emerges from underground channel on flank of volcano |
View N from summit, July 2000. Dark area is huge flow emplaced on July 22 (day before expedition reached crater) |
Lapilli / Lava deposits from July 22 eruption (presumably of T37E) |
T49B on morning of July 23 |
T37N1 exploding (center of image) on July 23, 13:04 local. Foreground is T51 with fresh flow field, T49B on left |
Flow field from T37N1 eruption after hydrating for a few days (hence white colour) |
T51 flow field on July 29, Note steeper cone compared to above image. T49B has also grown significantly. |
T51 cone erupting and emplacing small lava flows |
Active lava flows from T51 in 2002 with mini hornito in top right corner |
T45 from outside, arrow indicates hole in flank |
Top of hornito T45 viewed from inside, July 2004. |
Stalagtites inside hornito T45, July 2004. |
Fumarolic deposits formed on fresh lava within 24 hours |
Fumarolic deposits formed on fresh lava within 24 hours |
Colourful deposits - Lava around them is spotted by hydration of fresh deposit by raindrops |
Sulfurous fumarolic deposits (from deeper degassing source) |
July 2004 camp - due to proximity to active vents a 24 hour lava watch was performed |
View from tent (in foreground on left image) to center of crater, 2004 |
View of Lengai from Engaro Sero village |
View with giraffe from near Lake Natron |