| Stony Mountain Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Underlies | Stonewall Formation |
| Overlies | Red River Formation |
| Thickness | up to 45 metres (150 ft)[1] |
| Lithology | |
| Primary | dolomite, shale |
| Other | Anhydrite, limestone |
| Location | |
| Coordinates | 49°55′06″N 97°31′35″W / 49.9184°N 97.5265°W |
| Region | WCSB Williston Basin |
| Country |  Canada United States |
| Type section | |
| Named for | Stony Mountain, Manitoba |
| Named by | D.B. Dowling, 1900 |
The Stony Mountain Formation is a stratigraphical unit of Ashgill age in the Western Canadian Sedimentary Basin.
It takes the name from the community Stony Mountain, Manitoba, and was first described in the town quarry by D.B. Dowling in 1900.[2]
- ^ Cite error: The named reference
lexiconwas invoked but never defined (see the help page). - ^ Dowling, D.B., 1900. Report on the Geology of the West Shore and Islands of Lake Winnipeg; Geological Survey of Canada, Annual Report 1898, Volume XI, Part F, with Map 664.