Microscopic study shows magma breaks and heals repeatedly during eruptions
A team led by Jacopo Taddeucci published a study in Geology showing how pyroclasts form from three volcanoes including Mount Etna.
New evidence on particle formation
The research indicates that the fragmentation process creating volcanic debris is more extensive than simplified models assume. Scientists used scanning electron microscopy and X-ray microtomography to analyze samples from Etna, Stromboli, and Cumbre Vieja. Microscopic textures linked to these conditions reveal how magma repeatedly breaks and heals during explosive events.
Hazards for traffic and crops
Volcanic ash disrupts air and road traffic while damaging vegetation and wildlife in surrounding areas. Jacopo Taddeucci from Italy's Istituto Nazionale di Geofisica e Vulcanologia notes that understanding particle formation controls their features. The size of erupted fragments determines how far they travel and the specific hazards they pose.
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