Twitya Formation
| Twitya Formation | |
|---|---|
| Stratigraphic range: Cryogenian | |
| Type | Formation |
| Unit of | Hay Creek Group |
| Underlies | Keele Formation |
| Overlies | Shezal Formation |
| Thickness | 900 m (2,952 ft) |
| Lithology | |
| Primary | Cap carbonate |
| Other | Mudstone, Siltstone, Shale, Sandstone |
| Location | |
| Region | Northwest Territories |
| Country | Canada |
The Twitya Formation is a geologic formation in Canada’s Northwest Territories. It mainly consists of cap carbonate rocks, shales and Sandstone-siltstone, with finely laminated mudstone and siltstones. It preserves fossils dating back to the Cryogenian period.