| Bluesky Formation Stratigraphic range: Lower Albian |
|
|---|---|
Bluesky Sandstone |
|
| Type | Geological formation |
| Unit of | Bullhead Group |
| Underlies | |
| Overlies | |
| Thickness | up to 46 metres (150 ft)[1] |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Named for | Bluesky, Alberta |
| Named by | Peter C. Badgley, 1952 |
| Region | Western Alberta |
| Country | Canada |
The Bluesky Formation is a stratigraphical unit of Lower Cretaceous age in the Western Canadian Sedimentary Basin.
It takes the name from the hamlet of Bluesky, and was first described in Shell's Bluesky No. 1 well by Badgley in 1952.[2].
Contents |
The formation is composed of sandstone which can be quartzose or contain chert grains.[1] It is very porous and contains heavy oil in the Peace River area. Gas is produced from the formation in central Alberta.
The Bluesky Formation reaches a thickness of 46 meters (151 ft) in the Pouce Coupe area, and thins to the south and southeast[3]. Thin sands can be found in the Peace River area.
The Bluesky Formation is conformably overlain by the Wilrich Member of the Spirit River Formation and conformably underlain by the Gething Formation. North-east of the town of Peace River it is deposited unconformably on the Mississippian limestone. It is equivalent with the Glauconitic Sandstone of the Mannville Group in central and southern Alberta, as well as with the Wabiskaw Member of the Clearwater Formation in the eastern part of northern Alberta.