| Blairmore Group | |
|---|---|
| Stratigraphic range: Early Cretaceous | |
| Type | Group |
| Sub-units | Cadomin Formation, Gladstone Formation, Beaver Mines Formation, Ma Butte Formation |
| Underlies | Crowsnest Formation, Alberta Group |
| Overlies | Kootenay Group |
| Thickness | up to 2,000 m (6,560 ft)[1] |
| Lithology | |
| Primary | Sandstone, siltstone, mudstone |
| Other | Conglomerate, limestone |
| Location | |
| Region |  Alberta  British Columbia |
| Country | Canada |
| Type section | |
| Named for | Blairmore, Alberta |
| Named by | W.W. Leach, 1914[2] |
The Blairmore Group, originally named the Blairmore Formation, is a geologic unit of Early Cretaceous age in the Western Canada Sedimentary Basin that is present in southwestern Alberta and southeastern British Columbia.[1][3] It is subdivided into four formations: Cadomin Formation, Gladstone, Beaver Mines and Ma Butte, all of which are defined by type sections, most of which contain plant fossils.[4] In some areas the Blairmore contains significant reservoirs of natural gas.
- ^ a b Glass, D.J. (editor) 1997. Lexicon of Canadian Stratigraphy, vol. 4, Western Canada including eastern British Columbia, Alberta, Saskatchewan and southern Manitoba. Canadian Society of Petroleum Geologists, Calgary, 1423 p. on CD-ROM. ISBN 0-920230-23-7.
- ^ Leach, W.E. 1914. Blairmore map-area, Alberta. Geological Survey of Canada, Summary Report 1912, Map 107A.
- ^ Canadian Society of Petroleum Geologists and Alberta Geological Survey (1994). "The Geological Atlas of the Western Canada Sedimentary Basin, Chapter 19: Cretaceous Mannville Group of the Western Canada Sedimentary Basin". Compiled by Mossop, G.D. and Shetsen, I. Archived from the original on 1 July 2016. Retrieved 20 June 2016.
- ^ Lexicon of Canadian stratigraphy (4 ed.). Canadian Society of Petrologists. 1981. pp. 74–75.