Lightning-Induced Volcanic Spherules

• Published in: Geology
• Main Authors: Genareau, Kimberly, Wardman, John B., Wilson, Thomas M., McNutt, Stephen R., Izbekov, Pavel
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Digital Commons @ University of South Florida 2015
• Subjects: Alaska; igneous rocks; glasses; Eyjafjallajokull; volcanic glass; United States; Europe; pyroclastics; Iceland; Redoubt; volcanic rocks; Western Europe; Earth Sciences; Eyjafjallajökull
• Online Access: https://digitalcommons.usf.edu/geo_facpub/1438; https://doi.org/10.1130/G36255.1

Glass spherules have been documented in many geologic deposits and are formed during high-temperature processes that include cloud-to-ground lightning strikes, volcanic eruptions of low-viscosity magmas, and meteorite impacts. This study reviews the known glass spherule–forming processes and propose...