• Situated on the coast near to Corrie Village, a sandstone hosts a very important fossil artefact. The sandstone is  Permian  in age and is ca. 250 million years old and was originally deposited as wind blown sand . On a outcrop a fossil lightning strike or fulgurite can be found.  Fulgurite is from the Latin  fulgur meaning thunderbolt, or lightning and are natural hollow carrot-shaped glass tubes. Believed to be the first reported recognition of a fossilised lightning strike in the geological and scientific literature, it was described by Harland and Hacker in 1966.

 

  • The fulgurite was formed by a bolt of lightning hitting the surface of a sand dune ca. 250 Million years ago during the Permian Period, the lightning fused the sand into a glassy material, that extends into the sand like a  hollow tube. The tube was then in filled by more wind blown sand. It is estimated the loose sand was fused to make the fulgurite at approximately 1800 oC.  Below we see a close up of the circular entry point, which displays a classic star shaped inner. In the Geology Section of the Heritage Museum, we have a fulgurite that was formed recently in the Sahara desert during a thunderstorm. You can compare  the fossil fulgurite seen in the image below, with the recently formed fulgurite on show in the museum.


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This site was last updated Friday, 13 October 2006