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Crowfoot Formation
From Wikipedia, the free encyclopedia
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The Crowfoot Formation is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin.
It takes the name from Crowfoot Creek, a tributary of the Bow River and was first described in the Royalite Crowfoot No. 2 well, located near the creek by H.R. Belyea and D.J. McLaren in 1957. [2]
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Lithology
The Crowfoot Formation consists of anhydrite, silty dolomite, with minor shale. [1]
Distribution
The Crowfoot Formation is typically 4 metres (10 ft) thick, but can reach up to 38 metres (120 ft).[1]
Relationship to other units
The Crowfoot Formation is overlain by the Stettler Formation and overlays the Southesk Formation.[1]
It is equivalent to the Calmar Formation and part of the Graminia Formation in central Alberta and to the Torquay Formation in Saskatchewan, Manitoba and Montana.
References
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