Ludington Formation
| Schooler Creek Group Stratigraphic range: Ladinian to Norian |
|
|---|---|
| Type | Geological formation |
| Sub-units | Bocock Formation, Pardonet Formation, Baldonnel Formation, Ludington Formation, Charlie Lake Formation, Halfway Formation |
| Underlies | Fernie, Bullhead, Fort St. John Group |
| Overlies | Toad Formation, Doig Formation |
| Thickness | up to 730 feet (220 m) |
| Lithology | |
| Primary | Limestone, dolostone |
| Other | Siltstone, shale, evaporite |
| Location | |
| Coordinates | 56°16′37″N 120°59′01″W / 56.2769°N 120.9836°WCoordinates: 56°16′37″N 120°59′01″W / 56.2769°N 120.9836°W |
| Region |
 Alberta,  British Columbia
|
| Country |
 Canada
|
| Type section | |
| Named by | F.H. McLearn, 1921 |
The Schooler Creek Group is a stratigraphical unit of Ladinian to Norian age in the Western Canadian Sedimentary Basin.
It was named for Schooler Creek, a left tributary of the Williston Lake, and was first described north-west of Fort St. John in the Pacific Fort St. John No. 16 and Southern Production No. B-14-1 wells by F.H. McLearn in 1921.
The Schooler Creek Group is composed of limestone and dolostone, with subordinate siltstone, shale, sandstone and evaporite.
The Schooler Creek Group occurs in outcrops in the Canadian Rockies foothills, and a surface type locality for part of the Group can be found along Williston Lake. In the sub-surface it extends east and north from the Liard River throughout the Peace River Country. It reaches a maximum thickness of 730 feet (220 m) in the foothills.
The Pardonet Formation only occurs in the Canadian Rockies, and has its type locality at Pardonel Hill, on the south shore of the Williston Lake at 56°03′12″N 123°01′08″W / 56.05328°N 123.01889°W.
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