| Labiche Formation | |
| Type: | Geological group |
| Prilithology: | Shale |
| Namedfor: | La Biche River |
| Namedby: | R.G. McConnell, 1892 |
| Region: | WCSB |
| Country: |  Canada |
| Coordinates: | 55.0102°N -112.726°W |
| Underlies: | Belly River Formation |
| Overlies: | Pelican Formation |
| Thickness: | up to 420m (1,380feet) |
The Labiche Formation is a stratigraphical unit of late Albian to Santonian age in the Western Canadian Sedimentary Basin.
It takes the name from La Biche River, a tributary of the Athabasca River, and was first described in outcrop in the Athabasca River valley by R.G. McConnell in 1892.[1]
The Labiche Formation is composed shale with flakes of coccolithic debris, Inoceramus prisms, pyrite.[2]
The Labiche Formation reaches a maximum thickness of 420m (1,380feet) in the sub-surface of northern Alberta.[2]
The Labiche Formation is overlain by the Belly River Formation and conformably overlays the Pelican Formation.[2]
It is equivalent to the parts of the Colorado Group in central Alberta and to the sum of Smoky Group, Dunvegan Formation and Shaftesbury Formation in north-western Alberta.