40Ar/39Ar ages obtained on single K-feldspar grains from the Notarchirico sequence (Venosa, Italy).

Age 1 are calculated using 40K decay constant of Steiger and Jäger [31] and ACs-2 standard at 1.193 Ma according to Nomade et al. and Pereira et al. [16, 32]. Age 2 are calculated using ACs-2 standard at 1.1891 Ma according to Niespolo et al. [33] (this work). And 40K decay constant of Renne et al. [32]. The ages displayed in Pereira et al. [16] were recalculated using the 40K decay constant of Renne et al. [34] and the flux standard ACs-2 at 1.1891 Ma. Ages are only marginally changed (-0.3% younger), but the full external uncertainties are much better than previously reported by [16] due to the improved precision of the optimized K total decay constant of Renne et al. [34]. Levels 2–2 and 2–1 are part of the Notarchirico Tephra Complex (NTC), the only primary volcanic deposit of the section. The other ages should be considered as indicating the last volcanic event recorder in the sediment. Note that only unit 3 and level 1–6 top indicate a volcanic event different to those related to the NTC.