Liard Formation
The Liard Formation is a stratigraphic unit of Middle Triassic to Late Triassic age in the Western Canadian Sedimentary Basin that is present in northeastern British Columbia. It takes its name from the Liard River, and was first described from outcrops on the southern bank of that river, near Hell Gate Rapids in the Grand Canyon of the Liard, by E.D. Kindle in 1946.
| Liard Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Underlies | Charlie Lake Formation Garbutt Formation Buckinghorse Formation |
| Overlies | Toad Formation |
| Thickness | up to about 420 metres (1370 ft) |
| Lithology | |
| Primary | Sandstone, siltstone |
| Other | Limestone, dolomite |
| Location | |
| Coordinates | 59.276461°N 125.239326°W |
| Region | British Columbia |
| Country | Canada |
| Type section | |
| Named for | Liard River |
| Named by | E.D. Kindle, 1946 |
The Liard Formation contains marine index fossils that define its age, but it is less fossiliferous than the underlying Toad Formation. A very diverse ichnofossil assemblage is also known from the upper part of the formation.
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