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Turkana Rift Thinning May Split Africa, Preserve Fossils

5/2/2026

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Summary

Story summary

Christian Rowan, a Kenyan geoscientist, says the Turkana Rift will split Africa and form an ocean.
Seismic imaging shows the rift’s crust thins to about 13 km in the center versus over 35 km at the edges, with necking beginning around four million years ago after prolonged volcanic eruptions.
The timing coincides with the earliest hominin fossils, suggesting the tectonics may have enhanced preservation of Turkana’s more than 1,200 fossils.

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Story summary

Christian Rowan, a Kenyan geoscientist, says the Turkana Rift will split Africa and form an ocean.
Seismic imaging shows the rift’s crust thins to about 13 km in the center versus over 35 km at the edges, with necking beginning around four million years ago after prolonged volcanic eruptions.
The timing coincides with the earliest hominin fossils, suggesting the tectonics may have enhanced preservation of Turkana’s more than 1,200 fossils.