| Stonewall Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Underlies | Interlake Group |
| Overlies | Stony Mountain Formation |
| Thickness | up to 34 metres (110 ft)[1] |
| Lithology | |
| Primary | dolomite |
| Other | Sandstone, anhydrite |
| Location | |
| Coordinates | 50°07′07″N 97°43′26″W / 50.1186°N 97.7239°W |
| Region | WCSB Williston Basin |
| Country |  Canada |
| Type section | |
| Named for | Stonewall, Manitoba |
| Named by | E.M. Kindle, 1914 |
The Stonewall Formation is a stratigraphical unit of Late Ordovician to Early Silurian age in the Western Canadian Sedimentary Basin.
It takes the name from Stonewall, Manitoba, and was first described in the Stonewall quarry by E.M. Kindle in 1914.[2]
- ^ Cite error: The named reference
lexiconwas invoked but never defined (see the help page). - ^ Kindle, E.M., 1914. The Silurian and Devonian Section of Western Manitoba; Geological Survey of Canada, Summary Report 1912, pp. 247-261.