2021
DOI: 10.1038/s41598-021-01559-x
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Lightning-induced high temperature and pressure microstructures in surface and subsurface fulgurites

Abstract: Cloud-to-ground lightning causes both high-temperature and high-pressure metamorphism of rocks, forming rock fulgurite. We demonstrate that a range of microstructural features indicative of high temperatures and pressures can form in fulgurites at the surface and in fractures up to several meters below the surface. In comparison to a granite reference sample collected from a borehole at a depth of 138 m, microstructures in both the surface and fracture fulgurite are characterized by: (i) the presence of glass,… Show more

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