In any case, the deposition of coarse-grained sands and pebbles at ~3e4 m AHD
clearly suggests a proximal sediment source e likely related to active sediment supply and runoff from the nearby creeks e and a lake level probably not significantly higher than ~3 and ~4 m AHD around 26e17 ka and 11 ka, respectively. In addition, Unit 2a shows
good evidence for prolonged subaerial exposure and pedogenic overprinting, which would explain the relative resistivity to erosion and cliffed morphology (Figs. 2 and 4).