| Coalspur Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Unit of | Saunders Group |
| Sub-units | Coalspur coal zone, Entrance conglomerate |
| Underlies | Paskapoo Formation |
| Overlies | Brazeau Formation |
| Thickness | Up to about 550 metres (1,800 ft) |
| Lithology | |
| Primary | Sandstone, siltstone, shale |
| Other | Coal, conglomerate, bentonite |
| Location | |
| Coordinates | 53°00′N 116°48′W / 53.0°N 116.8°W |
| Approximate paleocoordinates | 60°36′N 91°36′W / 60.6°N 91.6°W |
| Region |  Alberta |
| Country |  Canada |
| Extent | Western Canada Sedimentary Basin |
| Type section | |
| Named for | Coalspur, Alberta |
| Named by | B.R. MacKay[1] |
| Year defined | 1949 |
  Coalspur Formation (Canada)  Coalspur Formation (Alberta) | |
The Coalspur Formation is an Upper Cretaceous to lower Palaeocene stratigraphic unit of the Western Canada Sedimentary Basin in the foothills of southwestern Alberta.[2] Its deposition spanned the time interval from latest Cretaceous (Maastrichtian) to early Palaeocene, and it includes sediments that were deposited before, during, and after the Cretaceous-Paleogene (K-Pg) extinction event. It includes the economically important coal deposits of the Coalspur Coal Zone, as well as nonmarine plant and animal fossils.
- ^ Mackay, B.R. 1949. Coal areas of Alberta. Geological Survey of Canada, Atlas to accompany estimate of coal reserves for the Royal Commission on Coal.
- ^ Mossop, G.D. and Shetsen, I. (compilers), Canadian Society of Petroleum Geologists (1994). "The Geological Atlas of the Western Canada Sedimentary Basin, Chapter 24: Upper Cretaceous and Tertiary strata of the Western Canada Sedimentary Basin". Archived from the original on 2016-07-01. Retrieved 2016-06-20.
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