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Lightning Reshapes Rocks at the Atomic Level, EES Study Finds

Using extremely high-resolution microscopy, Reto Gieré, professor and chair of the Department of Earth and Environmental Science in Penn’s School of Arts & Sciences, and his coauthors found that not only had the lightning melted the rock’s surface, resulting in a distinctive black “glaze,” but had transferred enough pressure to deform a thin layer of quartz crystals beneath the surface, resulting in distinct atomic-level structures called shock lamellae.

 

http://www.upenn.edu/pennnews/news/lightning-reshapes-rocks-atomic-level-penn-study-finds

Department of Earth and Environmental Science / University of Pennsylvania, 251 Hayden Hall, 240 South 33rd Street, Philadelphia, PA 19104-6316