~2.2 Ga ripple marks! A day in the life of the early Paleoproterozoic.
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
These have been interpreted as varve deposits. Gowganda Formation
Ramsay Lake Formation