Baldonnel Formation
| Baldonnel Formation Stratigraphic range: Carnian |
|
|---|---|
| Type | Geological formation |
| Unit of | Schooler Creek Group |
| Sub-units | Ducette Member |
| Underlies | Pardonet Formation, Fernie Formation |
| Overlies | Charlie Lake Formation |
| Thickness | up to 146 metres (480 ft) |
| Lithology | |
| Primary | Limestone, dolostone |
| Other | Siltstone, sandstone |
| Location | |
| Coordinates | 56°06′51″N 122°48′39″W / 56.11404°N 122.81095°WCoordinates: 56°06′51″N 122°48′39″W / 56.11404°N 122.81095°W |
| Region |
 Alberta,  British Columbia
|
| Country |
 Canada
|
| Type section | |
| Named for | Baldonnel, British Columbia |
| Named by | L.M. Clark, 1957 |
The Baldonnel Formation is a stratigraphical unit of Carnian age in the Western Canadian Sedimentary Basin.
It takes the name from the hamlet of Baldonnel, British Columbia, and was first described in the Pacific Fort St. John No. 16 well by L.M. Clark in 1957. A surface type locality can be found at Brown Hill, on the north shore of Williston Lake, at 56°06′51″N 122°48′39″W / 56.11404°N 122.81095°W.
The upper unit of the Baldonnel Formation consists of grey massive limestone and dolostone in the Canadian Rockies foothills and in the western range between the Liard River and Peace River. Siltstone and fine grained sandstone occur as interbeds.
In the sub-surface of the Peace River Country, the Baldonnel Formation is represented by porous and permeable dolostone.
Gas is produced from the Baldonnel Formation in north-eastern British Columbia.
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