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Cooking Lake Formation : ウィキペディア英語版 | Woodbend Group
The Woodbend Group is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin. It was first described in the ''British American Pyrcz No. 1'' well by Imperial Oil geological staff in 1950.〔Imperial Oil Limited, Geological Staff, Western Division, 1950. Devonian nomenclature in Edmonton area, Alberta, Canada. Bull. American Association of Petroleum Geologists, v. 34, p. 1807-1825〕 ==Lithology== The Formation is composed of crystalline and dolomitized limestone (Cooking Lake Formation) in off-reef areas, bituminous shale and argillaceous limestone, detrital limestone (reef fallout), stromatoporoid calcarenite (Duvernay Formation), gray shale, argillaceous limestone, argillaceous dolomite, crystalline dolomite (Ireton Formation). In reef build-ups, it consists of massive limestone and dolomite with porosity (Leduc Formation). 〔 〕
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