| Cypress Hills Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Underlies | current erosional surface |
| Overlies | Ravenscrag Formation |
| Thickness | up to 80 metres (260 ft)[1][2] |
| Lithology | |
| Primary | Gravel, sand |
| Other | Conglomerate, sandstone, marl |
| Location | |
| Coordinates | 49°35′38″N 108°47′46″W / 49.594°N 108.796°W |
| Region |  Alberta Saskatchewan |
| Country |  Canada |
| Type section | |
| Named for | Cypress Hills |
| Named by | M.Y. Williams and W.S. Dyer, 1930[3] |
The Cypress Hills Formation is a stratigraphic unit of middle Eocene to early Miocene age[4] in the Western Canada Sedimentary Basin. It is named for the Cypress Hills of southeastern Alberta and southwestern Saskatchewan and was first described from outcrops on the slopes of the Cypress Hills in 1930.[3] It is known for preserving a wealth of vertebrate fossils.[4]
- ^ Cite error: The named reference
lexiconwas invoked but never defined (see the help page). - ^ Glass, D.J. (editor) 1997. Lexicon of Canadian Stratigraphy, vol. 4, Western Canada including eastern British Columbia, Alberta, Saskatchewan and southern Manitoba, p. 331. Canadian Society of Petroleum Geologists, Calgary, 1423 p. on CD-ROM. ISBN 0-920230-23-7.
- ^ a b Williams, M.Y. and Dyer, W.S., 1930. Geology of southern Alberta and southwestern Saskatchewan; Geological Survey of Canada, Memoir 163.
- ^ a b Leckie, D.A. and Cheel, R.J. 1989. The Cypress Hills Formation – A semi-arid braid plain deposit resulting from intrusive uplift. Canadian Journal of Earth Sciences, vol. 26, p. 1918-1931.