Résumé
Climate records based on analyses of diatom assemblages, geochemistry and magnetic mineralogy of radiocarbon-dated laminated sediments from Lake Magadi in the E African Rift, detail climatic changes in lowland equatorial Africa through the last glaciation (12 800-10 000 (super 14) C yr B.P.). Lake level and humidity coincide with most rapid ice melting in the N Hemisphere and climate changes were synchronous at low and high latitudes. The effects of abrupt climate change appear to occur at high and low latitudes without a significant time lag.