Smoking Gun of Permian Extinction (1 of 3) (IMAGE)

University of Calgary

Smoking Gun of Permian Extinction (1 of 3)

Caption

Dr. Stephen Grasby at Buchanan Lake, Axel Heiberg Island, Nunavut, where recent discovery of coal ash layers provide the first direct evidence of significant coal fires at the Latest Permian Extinction.

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Courtesy of University of Calgary

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