Map showing approximate locations for Sudbury impact-layer localities in Michigan and the surrounding region. Sites in Michigan are new localities reported here. Mesabi Range, Gunflint Range, and Thunder Bay sites are from Addison et al. (2005). Magnetic Rock site is from Jirsa et al. (2008). Concentric circles show distances from the presumed impact point near Sudbury, Ontario. from Cannon et al 2009.
Big Nickel
Gosses Bluff Impact Crater, Northern Territory, Australia
