White River Ash
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Template:Short description The White River Ash is a 1,500-year-old tephra deposit found in the southern part of the Yukon Territory, Canada and eastern Alaska.[1] The deposit is bilobate,[2] formed by two large (VEI 6) explosive eruptions from the stratovolcano of Mount Churchill that occurred around 850 AD and blanketed Script error: No such module "convert"..[3] While originally believed to only exist within North America, recent observations (2014) have found crypto-tephra from the eruption across northern Europe.
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