Fig. 11.From: Precursory activity and evolution of the 2011 eruption of Shinmoe-dake in Kirishima volcano—insights from ash samplesTemporal change in bulk ash SiO2 content. Different symbols indicate the total percentage (in number) of juvenile material and fresh lava in the analyzed sample (Fig. 2 and Table 2). See “second phreatomagmatic stage” in Subsection 5.1.2 for the reason why the total ratios could not be determined in and after June 2011.Back to article page