Viking Formation (Albian) at Eureka, Saskatchewan: a transgressed and degraded shelf sand ridge

The ridge formed from a plume of sand in a shallow sea, with its western end close to a deltaic distributary channel (similar to the plume east of the modern Nile delta). The regional Viking shoreline moved north or northeastward into the basin during a lowstand of relative sea level. During subsequent transgression, the delta was eroded and displaced an unknown distance southwestward. -from Authors