Argillite (cherty siltstone),sedimentary rock, from Desbarats, Sault Ste. Marie. This fine grained rock formed in a shallow water environment. Ripple marks, mud cracks and slump structures can be seen.
Argillite (cherty siltstone),sedimentary rock, from Desbarats, Sault Ste. Marie. This fine grained rock formed in a shallow water environment. Ripple marks, mud cracks and slump structures can be seen.
