Alexo Formation
The Alexo Formation a stratigraphic unit of Late Devonian (late Frasnian to early Famennian) age. It is present on the western edge of the Western Canada Sedimentary Basin in the central Rocky Mountains and foothills of Alberta. The formation consists primarily of dolomite. It is locally fossiliferous and includes remains of marine animals such as brachiopods and conodonts.
| Alexo Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Underlies | Palliser Formation |
| Overlies | Southesk Formation, Mount Hawk Formation |
| Thickness | Up to about 100 metres (330 ft) |
| Lithology | |
| Primary | Dolomite |
| Other | Siltstone |
| Location | |
| Coordinates | 52°26′00″N 115°54′00″W |
| Region | Alberta |
| Country | Canada |
| Type section | |
| Named for | Alexo, Alberta |
| Named by | R. de Wit and D.J. McLaren, 1950. |
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