June 18, 2026
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FEATURES

FEATURES

Alake’s tar sands, Umahi’s concrete

By Salisu Na’inna Dambatta  An entry at www.sciencedirect says, “Extensive tar sands with reserves of about 41 billion barrels of oil are known to occur in Cretaceous terrigenous sediments in Ondo and Ogun states. The hydrocarbon occurs in two predominantly sandy zones separated by an eight-metre thick oil shale.”  Another report says Edo and Lagos