Facies, geochemistry and diatoms of late Pleistocene Olorgesailie tufas, southern Kenya Rift

► Facies and geochemistry are detailed for multiple Olorgesailie tufas. ► Rare earth elements indicate variable groundwater sources. ► Diatoms indicate ambient to warm waters in fluvial, swamp and pond settings. ► Oxygen isotopes suggest variable evaporation and possibly rainfall. ► Carbon isotopes suggest similar soils and vegetation during deposition of each tufa.