White River Ash

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

The White River Ash is a 1,200-year-old ash deposit. It was formed by two large (VEI 6) explosive eruptions from the stratovolcano of Mount Churchill that blanketed 340,000 km2 (130,000 sq mi) of Yukon and Northwest Territories, Canada and the U.S. state of Alaska with ash.[1]

See also[edit]


  1. ^ West, K.D.; Donaldson, J.D. (2000). "Evidence for winter eruption of the White River Ash (eastern lobe), Yukon Territory". CGRG Bibliography of Canadian Geomorphology. The Canadian Geomorphology Research Group. Archived from the original on 2009-04-08. Retrieved 2007-07-09. 

Transatlantic distribution of the Alaskan White River Ash