Does coal ever catch fire in nature?



  1. 0 Votes

    Natural coal fires in the Powder River Basin of Wyoming, over the course of the past couple million years, baked the overlying rocks into hard reddish metamorphic rock called clinker. It covers many tens of square miles and since it is so much more resistant than the unbaked rock, it forms local mesas and buttes over much of the Powder River Basin. Similar natural fires have occurred in other coal basins around the world.

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