Menengai Caldera

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Menengai Caldera Cohabo 7/29/11 1:32 AM
Menengai volcano is located on the floor of the Rift Valley, 24 km south of the equator, immediately north of Nakuru. It is one of five recent volcanoes in the central Kenya Rift valley. The volcano was formed about 200,000 years ago with the growth of a 30 cubic km volume lava shield.

The 12 x 8 km caldera formed 8000 years ago. More than 70 post caldera lava flows cover the caldera floor. Cinder cones are rare at the volcano.

Menengai is considered one of the best-preserved Krakatau-style calderas in the world.
Re: Menengai Caldera Stratigrapher 7/29/11 10:55 AM
Web Pages

Menengai (Global Volcanism Program)
http://www.volcano.si.edu/world/volcano.cfm?vnum=0202-06=

Menengai Satellite Images
http://ava.jpl.nasa.gov/volcano.asp?vnum=0202-06=

Menengai (Volcano World)
http://volcano.oregonstate.edu/menengai

Friends of Menengai
http://friendsofmenengai.org/
http://friendsofmenengai.org/index.php?option=com_content&view=article&id=47&Itemid=53

Papers

Leat, P. T., 1984, Geological evolution of the trachytic caldera
volcano Menengai, Kenya Rift Valley. Journal of the Geological
Society, vol. 141, no. 6, pp. 1057-1069.
http://jgs.geoscienceworld.org/cgi/content/abstract/141/6/1057
http://jgs.geoscienceworld.org/cgi/content/abstract/142/4/711

Leat, P., R. MacDonald, and R. Smith, 1984, Geochemical
evolution of the Menengai caldera volcano, Kenya. Journal of
Geophysical Research. vol. 89, no. B10, pp. 8571-8592.
http://europa.agu.org/?uri=/journals/jb/JB089iB10p08571.xml&view=article

Williams, L., R. MacDonald, and G. Chapman, 1984, Late
Quaternary caldera volcanoes of the Kenya rift valley, Journal
of the Geological Society. vol. 89, no. B10, pp. 8553-8570.
http://europa.agu.org/?uri=/journals/jb/JB089iB10p08553.xml&view=article