~2.2 Ga ripple marks! A day in the life of the early Paleoproterozoic.

Ripple marks


Classic example of a dropstone. The laminated seds containing the dropstone are the Pecors Formation whereas the flat surface below is the top of the Ramsay Lake diamictite.

Big clast (boulder!) in the Gowganda Formation

Gowganda Formation diamictite

Gowganda Formation

These have been interpreted as varve deposits. Gowganda Formation

12RMG036 (1)
12RMG036 (1)

Ramsay Lake Formation