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Even the mighty crumble

- Wits University

Scientific American interviews Dr Susan Webb.

An article and podcast, titled: Lightning may sink mountain summits, recently published online in the American popular scientific magazine, Scientific American, feature the latest research done by the Wits School of Geosciences on the role lightning plays in mangling mountains in the magnetic signatures of rocks, which go haywire when blasted by bolts.

The magazine interviewed Dr Susan Webb from the School after she presented the results at the annual meeting of the American Geophysical Union in San Francisco: “These magnetic anomalies are huge. And so, we don’t expect to see that, not with ice fracturing rocks. We would see that only with lightning fracturing rocks. And the fact that there’s so many tells you that’s a really important mechanism for weathering rocks.”