Fig. 10From: Reconstruction of a phreatic eruption on 27 September 2014 at Ontake volcano, central Japan, based on proximal pyroclastic density current and fallout depositsVariation of grain-size characteristics (M d, σ φ , and FP) with stratigraphic height for locations (d, f). FP finest population obtained from multiple Gaussian fittings as shown in Fig. 9 Back to article page