Fig. 1: Macro-to-micro textures of starting materials.
From: Nanoscale silicate melt textures determine volcanic ash surface chemistry
a Photo of the scoriaceous bomb collected from PDC deposits of the 16–17th August 2006 eruption of Tungurahua on a 1 cm grid. The top surface was cut flat, and cores were drilled perpendicular to the cut surface. b, c Orthogonal side views of the starting block, showing the pore texture along the axis of the drilled cores. d Microphotograph in transmitted light and (e) SEM-BSE image, showing pore structure (in white in (b) and in black in (c)), microlite rich matrix glass (mGl) and crystals of plagioclase (Pl) and pyroxene (Px).
