In the center of the Rift Valley, about 90 km N of Nairobi.
A Halocene shield volcano that is 2,356 meters (7,730 feet) high. It is the southernmost caldera of the Kenya rift system. Several eruptions have created a variety of interesting features. The latest eruptions may be as recent as 100 years ago. The outer crater is approximately 10km in diameter and is breached on its south and east sides where lava flows poured down the slopes. Many of the less viscous pahoehoe flows are honeycombed with caves. An inner crater is 4 to 5km in diameter and contains a raft-like structure (tilted island block of caldera floor lava flows) surrounded by a deep "moat".
Mineral ListMineral list contains entries from the region specified including sub-localities
22 entries listed. 18 valid minerals.
Localities in this Region
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J. Petrology (1969) 10 (3): 409-439.
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Locality Updated: St Just District, Cornwall, England, UKFrom Peter Haas, 2nd Sep 2014 01:58:55