Whitemud Formation
The Whitemud Formation is a geologic formation of Late Cretaceous (Maastrichtian) age in the Western Canada Sedimentary Basin. it is present through the plains of southern Saskatchewan, southeastern Alberta and south-central Alberta. Named by N.B. Davis in 1918, the formation is characterized by white kaolinitic clay and is a source of high-quality refractory clay. The type locality has been designated as Dempster's clay pit northwest of Eastend, Saskatchewan.
| Whitemud Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Unit of | Edmonton Group |
| Underlies | Frenchman Formation and Battle Formation |
| Overlies | Eastend Formation, Horseshoe Canyon Formation and St. Mary River Formation |
| Thickness | Up to 23 metres (75 ft) |
| Lithology | |
| Primary | Sandstone, siltstone, clay |
| Other | shale, lignite |
| Location | |
| Region | Saskatchewan Alberta |
| Country | Canada |
| Type section | |
| Named by | N.B. Davis, 1918 |
Although fossils are generally lacking in the Whitemud Formation, in southern Saskatchewan the Whitemud contains coprolites (fossilized feces) and fossilized intestines of fish.
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