Ar/Ar dating of samples from Aluto and Corbetti volcanoes, Ethiopia. Data are referenced in Hutchison et al., 2016b: A pulse of mid-Pleistocene rift volcanism in Ethiopia at the dawn of modern humans; https://doi.org/10.1038/ncomms13192

40Ar/39Ar ages of 37 mica and 21 hornblende from the sand-sized fraction of an iceberg-rafted debris-rich layer deposited in the Scotia Sea at IODP Site U1538 ~1.2 million years ago during the early Pleistocene.