Schooler Creek Group
The Schooler Creek Group is a stratigraphic unit of Middle to Late Triassic age in the Western Canadian Sedimentary Basin. It is present in northeastern British Columbia. It was named for Schooler Creek, a left tributary of Williston Lake, and was first described in two oil wells northwest of Fort St. John, by F.H. McLearn in 1921. Exposures along Williston Lake serve as a type locality in outcrop.
Lithology
The Schooler Creek Group is composed of limestone and dolomite, with subordinate siltstone, shale, sandstone, and evaporite minerals such as gypsum and anhydrite.Distribution
The Schooler Creek Group outcrops in the foothills of the northern Canadian Rockies in northeastern British Columbia, where it reaches its maximum thickness of. In the subsurface, it extends throughout the plains of the Peace River Country. The Pardonet Formation has its type locality at Pardonet Hill, on the south shore of the Williston Lake at.Relationship to other units
The Schooler Creek Group is unconformably overlain by the Fernie shale, or by the Bullhead or Fort St. John Group. It conformably overlies the Toad Formation or the Doig Formation.Subdivisions
The Schooler Creek Group has the following sub-divisions from top to base:| Sub-unit | Age | Lithology | Thickness | Reference |
| Bocock Formation | late Norian | aphanitic crystalline and bioclastic limestone | ||
| Pardonet Formation | Norian | limestone, silty limestone, siltstone, rare shale | ||
| Baldonnel Formation | Carnian | limestone, dolomite, with interbeds of siltstone and very fine grained sandstone | ||
| Ludington Formation | Carnian | dolomitic and calcareous siltstone, sandstone, bioclastic limestone | ||
| Charlie Lake Formation | Carnian | aeolian sandstones, limestone, dolomite and evaporite minerals such as anhydrite. Deposited in a series of sand dunes and sabkah environments similar to the modern Coastal Ergs of Namibia. | ||
| Halfway Formation | early Ladinian to Carnian | sandstone, with interbeds of siltstone, dolomite and limestone |