Fossilized lightning bolts reveal when ancient storms struck

12/16/2020
Media credits: CASTRO ET AL., EARTH AND PLANETARY SCIENCE LETTERS (2020) 10.1016/J.EPSL.2020.116595
Media credits: CASTRO ET AL., EARTH AND PLANETARY SCIENCE LETTERS (2020) 10.1016/J.EPSL.2020.116595

(Science) -- When a lightning bolt strikes a mountaintop, it can melt rocks in a ash, leaving a narrow glassy scar called a fulgurite. Now, researchers have shown that these fossilized thunderbolts are geological clocks that record the passage of time...(read more)