Figure 6
From: The size range of bubbles that produce ash during explosive volcanic eruptions
Profiles of vesicle imprints measured with Alicona MeX software. User-selected profiles across a vesicle imprint in a complex ash particle from Volcán Fuego, which allows BubbleMaker software to calculate the volume of the original bubble based on vesicle diameter and depth provided by the digital elevation model. (a) A secondary electron image of a complex ash particle from the Fuego eruption with a single vesicle imprint indicated by the red rectangle; (b) en enlarged view of the vesicle imprint with the selected profile across the imprint running from A to B; (c) length and depth of imprint as determined by the digital elevation model of the ash particle constructed using the MeX software package.