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Why volcanic crystals are black boxes for tracking magma’s journey to the Earth’s surface

By Alberto Caracciolo, Postdoctoral researcher, University of Iceland
Maurizio Petrelli, Professor of Igneous Petrology, Università degli Studi di Perugia
Teresa Ubide, ARC Future Fellow and Associate Professor in Igneous Petrology/Volcanology, The University of Queensland

By observing the tree-ring-like growth records present in volcanic crystals, geologists are able to track volcanic activity and reconstruct the steps leading up to eruptions.

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