Aerial View of red-brown Oltulelei Formation Channel Deposits (IMAGE)

Geological Society of America

Aerial View of red-brown Oltulelei Formation Channel Deposits

Caption

Aerial view of red-brown Oltulelei Formation channel deposits superimposed on white lacustrine deposits of the Olorgesailie Formation. Base level shifts in the southern Kenya rift valley transformed the Olorgesailie Basin from lake to land multiple times over the past 500,000 years, requiring early humans and other inhabitants to adapt to rapidly changing physical landscapes.

Credit

A.K. Behrensmeyer

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Credit A.K. Behrensmeyer

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