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The Duvernay Formation is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin. It was first described in well Anglo Canadian Beaverhill Lake No. 2 in LSD 11-11-50-17W4M by Imperial Oil staff in 1950.〔Geological Staff, Imperial Oil Ltd. Western Division, 1950. Devonian nomenclature in Edmonton area. Bulletin of American Association of Petroleum Geologists, v. 34, p. 1807-1825.〕 The Formation was named by Andrichuk and Wonfor in 1954〔Andrichuk, J.M. and Wonfor, J.S., 1954. Late Devonian geologic history in Stettler area, Alberta, Canada Bulletin of American Association of Petroleum Geologists, v. 38, p. 2500-2536.〕 for Duvernay, Alberta. According to Canada’s Alberta Energy Regulator, the Duvernay Formation "holds an estimated 443 trillion cubic feet of gas and 61.7 billion barrels of oil (Penny China Institute 2012-12)."〔 〕 Calgary-based, Athabasca Oil Corporation (formerly Athabasca Oil Sands Corporation), holds 640,000 acres, the largest publicly disclosed Duvernay rights.〔 ==Lithology== The Duvernay Formation is composed of laminated bituminous shale, calcareous shale and dense argillaceous limestone. Pyrite disseminations are common. Calcarenite and coral rich mudstone are also present. 〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Duvernay Formation」の詳細全文を読む スポンサード リンク
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