Fig. 9From: Reconstruction of a phreatic eruption on 27 September 2014 at Ontake volcano, central Japan, based on proximal pyroclastic density current and fallout depositsGrain-size histograms for representative samples from the proximal and distal locations. All grain-size data are characterized by multi-populations and can be fitted by multiple Gaussian curves. The coefficient of determination (R 2) for the sum of all the populations is also indicatedBack to article page