Type Geological formation Named by A.D. Baillie, 1953 Primary Slate, Evaporite | ||
Sub-units Souris River FormationHubbard EvaporiteDawson Bay Formation Underlies Duperow Formation 9Saskatchewan Group Thickness up to 244 metres (800 ft) Region Western Canadian Sedimentary Basin Overlies | ||
Zipline vemont 5 louisiana minnesota manitoba group
The Manitoba Group is a stratigraphical unit of middle to late Devonian age in the Western Canadian Sedimentary Basin.
Contents
- Zipline vemont 5 louisiana minnesota manitoba group
- Lithology
- Distribution
- Subdivisions
- Relationship to other units
- References
It takes the name from the province of Manitoba, and was first defined by A.D. Baillie in 1953.
Lithology
The Manitoba Group is composed of alternating cycles of shale, carbonate and evaporite.
Distribution
The Manitoba Group occurs in outcrop in southwestern Manitoba and in the sub-surface in southern Saskatchewan, North Dakota and Montana. It reaches a maximum thickness of 150 metres (490 ft) in outcrop and up to 244 metres (800 ft) in the sub-surface.
Subdivisions
The following formationas are recognised, from top to bottom:
Relationship to other units
The Manitoba Group is conformably overlain by the Duperow Formation and disconformably overlays the Prairie Evaporite Formation or Winnipegosis Formation of the Elk Point Group.
The lower Manitoba Group is equivalent to the Muskeg Formation in northern Alberta, while the upper part correlates with the Beaverhill Lake Formation.