Montney Formation
| Montney Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Underlies | Doig Formation, Fernie Group |
| Overlies | Belloy Formation |
| Area | 130,000 square kilometres (50,190 sq mi) |
| Thickness | up to 280 metres (920 ft) |
| Lithology | |
| Primary | Siltstone and shale |
| Other | Dolomitic siltstone, sandstone |
| Location | |
| Coordinates | 56°34′18″N 121°13′19″W / 56.57159°N 121.2219°W |
| Region | British Columbia, Alberta |
| Country | Canada |
| Type section | |
| Named for | Montney, British Columbia |
| Named by | J.H. Armitage, 1962 |
The Montney Formation is a stratigraphic unit of Lower Triassic age in the Western Canadian Sedimentary Basin in British Columbia and Alberta.
It takes the name from the hamlet of Montney and was first described in Texaco's Buick Creek No. 7 well by J.H. Armitage in 1962. The well was drilled 41 kilometers (25 mi) north of Fort St. John, immediately east of the Alaska Highway.