Winterburn Group
The Winterburn Group is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin.
| Winterburn Group | |
|---|---|
| Stratigraphic range: | |
| Type | Geological group |
| Sub-units | Nisku Formation, Calmar Formation, Graminia Formation, Blue Ridge Member |
| Underlies | Wabamun Group |
| Overlies | Ireton Formation |
| Thickness | up to 150 metres (490 ft) |
| Lithology | |
| Primary | dolomite, limestone, siltstone |
| Other | Anhydrite, shale |
| Location | |
| Coordinates | 53.3451°N 113.6949°W |
| Region | Alberta |
| Country | Canada |
| Type section | |
| Named for | Winterburn, Edmonton |
| Named by | Imperial Oil Limited, 1950 |
It takes the name from Winterburn area located west of Edmonton, and was first described in well P.A. Pyrcz No. 1 by Imperial Oil Limited in 1950.
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