Richard Thiessen, Kevin Burke, W.S.F. Kidd; African hotspots and their relation to the underlying mantle. Geology ; 7 (5): 263–266. doi: https://doi.org/10.1130/0091-7613(1979)7<263:AHATRT>2.0.CO;2
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Several lines of evidence indicate that Africa has been stationary relative to the underlying mantle since Miocene time. If so, it may provide a unique window to the underlying mantle convection systems. One possible hotspot population indicates a polygonal cell system that correlates with laboratory models in both plan form and scale.