Fig. 3.From: Viscosity of andesitic lava and its implications for possible drain-back processes in the 2011 eruption of the Shinmoedake volcano, JapanBulk rock and glass chemical compositions of white pumice, gray pumice and blocks from the lava that filled the crater. Bulk rock chemical composition is obtained by X-ray fluorescence analyses on bulk rock powder, whereas glass composition is obtained by electron-probe microanalyses.Back to article page