Monteith Formation
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| Monteith Formation | |
|---|---|
| Stratigraphic range: Valanginian | |
| Type | Formation |
| Unit of | Minnes Group |
| Underlies | Beattie Peaks Formation |
| Overlies | Fernie Formation |
| Thickness | maximum 600 m (1,970 ft) |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone, mudstone, coal |
| Location | |
| Coordinates | 55°47′00″N 122°35′00″W / 55.7833°N 122.5833°W |
| Region | British Columbia Alberta |
| Country | Canada |
| Extent | Western Canadian Sedimentary Basin |
| Type section | |
| Named for | Mount Monteith |
| Named by | W.H. Mathews, 1947[1] |
  Monteith Formation (Canada) | |
The Monteith Formation is a geologic formation of Early Cretaceous (Valanginian) age in the Western Canada Sedimentary Basin that consists primarily of sandstone. It is present in the northern foothills of the Canadian Rockies and the adjacent plains in northeastern British Columbia and west-central Alberta.[2][3][4]
Environment of deposition
The Monteith Formation was deposited in marine and nonmarine environments within and adjacent to the Western Interior Seaway. Depositional settings ranged from marine to shoreline, deltaic, river channel, floodplain, and swamp environments.[2]
Paleontology and age
The age of the Monach Formation formations has been determined from its fossil fauna, primarily species of the bivalve Buchia.[2]
Thickness and distribution
The Monteith Formation is present in the foothills of the Canadian Rockies and the adjacent plains from the Prophet River in northeastern British Columbia to the Berland River in west-central Alberta. It attains a maximum thickness of 600 m (1,970 ft) in the foothills of British Columbia and thins eastward.[2][4]
