Stratigraphic range: Meramecian
|Unit of||Rundle Group|
|Thickness||up to 366 metres (1,200 ft)|
|Region||Alberta, British Columbia|
|Named for||Debolt, Alberta|
|Named by||G. Macauley, 1958|
The Debolt Formation consists of bioclastic limestone in the base, with dolomitized areas in the east and with increased shale content in the north. Chert and dolomite are more frequent closer to the Canadian Rockies foothills. The upper Debolt is composed of dolomite and anhydrite and crystalline limestone. The facies is mainly limestone in north-eastern British Columbia.
The Debolt Formation is present in the sub-surface in the Peace River Country in northern Alberta and north-eastern British Columbia. The formation is 366 metres (1,200 ft) thick close to the Rocky Mountains, and thins out northward and eastward. It has a thickness of 244 metres (800 ft) at its type locality near Debolt, Alberta.
Relationship to other units
The Debolt Formation is the upper most component of the Rundle Group. It rests conformably on the Shunda Formation, resting on shale and carbonates. It is overlain conformably by the Golata Formation of the Stoddart Group in the west, and the upper contact becomes unconformable with gradually newer formations to the east and north (Permian, Triassic, Jurassic and Cretaceous beds).