Figure 3
Estimates of the age of sand sheets TF2 (a), UC3 and UC4 (b), and PA3 (c). Ages of plant macrofossils and insects were used for age estimation. Constrained ages (2σ range) were calculated using OxCal 4.460,61 with the IntCal2062. Age estimation followed the procedure of Lienkaemper and Bronk Ramsey (2009)58. Sample numbers correspond to the numerical superscripts shown in Fig. 2 and listed in Supplementary Table S1. Three anomalous ages, Nos. 12, 16, and 19, were excluded from the age estimation because they are younger or older than those obtained from horizons above and below them. The light and dark gray distributions indicate probability distribution functions (PDFs) of calibrated and modelled ages by OxCal, respectively. Horizontal bars below PDFs indicate 1σ and 2σ ranges of modelled ages.
