| Subordinate rocks include thin units of dolomite, evaporite, Varangerian tillite and Precambrian crystalline rocks. |
| Ichnofossils and tillite layers, indicative of the Vendian, occur in the lower part of the unit. |
| Complete the experience with a quiet low-tide walk around the fossil bluff that has an ancient glacial deposit, Wynyard Tillite, next to it. |
| The Earth's oldest glacial rocks were reported from Gowganda in northern Ontario and in 1906 Albrecht Penck introduced the term tillite for ancient lithified tills. |
| Both the tillite and the rock surface are demonstrably Pre-Cambrian. |
| One of the classical Late Pre-Cambrian tillites is the Bigganjargga tillite of northern Norway. |
