ENSIKLOPEDIA Cari Tekan Enter untuk memulai pencarian cepat. Kembali ke Ensiklopedia Arsip Wikipedia Indonesia Birdbear Formation Saskatchewan GroupSaskatchewan GroupStratigraphic range: Frasnian PreꞒ Ꞓ O S D C P T J K Pg N TypeGeological groupSub-unitsBirdbear FormationDuperow FormationUnderliesThree Forks GroupOverliesManitoba GroupThicknessup to 350 metres (1,150 ft)[1]LithologyPrimaryCarbonateOtherEvaporiteLocationCoordinates50°21′18″N 106°54′07″W / 50.355°N 106.902°W / 50.355; -106.902 (Saskatchewan Group)RegionWCSBWilliston BasinCountryCanada, United StatesType sectionNamed forSaskatchewanNamed byA.D Baillie, 1953 The Saskatchewan Group is a stratigraphical unit of Frasnian age in the Western Canadian Sedimentary Basin. It takes the name from the province of Saskatchewan, and was first described in the Mobil Oil Woodley Sinclair Cantuar X-2-21 well by A.D Baillie in 1953.[2] Lithology The Saskatchewan Group is composed of carbonates with thin evaporites. [1] Distribution The Saskatchewan Group reaches a maximum thickness of 350 metres (1,150 ft).[1] It is present in the sub-surface throughout the Williston Basin. Subdivisions The Saskatchewan Group contains the following formations, from top to base: Sub-unitAgeLithologyMax.ThicknessReference Birdbear FormationFrasnianUpper: dolomite with evaporite interbedsLower: non-argillaceous limestone and dolomite45 m (150 ft) [3] Duperow FormationFrasnianlimestone and dolomite, anhydrite, halite; up to 27 depositional cycles300 m (980 ft) [4] Relationship to other units The Saskatchewan Group is conformably overlain by the Three Forks Group and conformably overlays the Manitoba Group carbonates.[1] It is equivalent to the upper Beaverhill Lake Formation, the Woodbend Group and the lower part of the Winterburn Group in central Alberta, and with the Jefferson Group in Montana and North Dakota. References 1 2 3 4 Lexicon of Canadian Geologic Units. "Saskatchewan Group". Retrieved 2010-01-01. ↑ Baillie, A.D., 1953. "Devonian names and correlations of the Williston Basin area; American Association of Petroleum Geologists Bulletin, vol. 37, no. 2 (February), pp. 444-447. ↑ Lexicon of Canadian Geologic Units. "Birdbear Formation". Retrieved 2010-01-09. ↑ Lexicon of Canadian Geologic Units. "Duperow Formation". Retrieved 2010-01-09. vteWestern Canada Sedimentary BasinHydrocarbon history Oil sands and heavy oil Frontier exploration and development Natural gas liquids Natural gas Depositional regions Southern Alberta Central Alberta Northwestern Alberta Plains South-central Canadian Rockies foothills North-east Plains North-central foothills Liard River Fort Nelson Northern Rocky Mountains Fort St. John Saskatchewan Western Manitoba Southern Alberta plains Cypress Hills FM Porcupine Hills FM Ravenscrag FM Edmonton GRP Belly River GRP Oldman FM Foremost FM Pakowki FM Milk River FM Colorado GRP Mannville GRP Ellis GRP Swift FM Rierdon FM Sawtooth FM Rundle GRP Banff FM Exshaw FM Bakken FM Wabamun FM Crowfoot FM Nisku FM Ireton FM Leduc FM Cooking Lake FM Beaverhill Lake GRP Elk Point GRP Canadian Shield Saskatchewan Cypress Hills FM Ravenscrag FM Frenchman FM Whitemud FM Eastend FM Bearpaw FM Judith River GRP Belly River FM Oldman FM Foremost FM Lea Park FM Pakowki FM Milk River FM Colorado GRP Viking FM Mannville GRP Pense FM Cantuar FM Success FM Vanguard FM Ellis GRP Swift FM Rierdon FM Sawtooth FM Shaunavon FM Piper FM Gravelbourg FM Gypsum Springs FM Watrous FM Big Snowy GRP Madison GRP Charles FM Poplar Ratcliffe Midale Mission Canyon FM Kisbey SS Alida Tilston Lodgepole FM Souris Valley Three Forks GRP Bakken FM Big Valley FM Torquay FM Saskatchewan GRP Birdbear FM Duperow FM Manitoba GRP Souris River FM Elk Point GRP Davson Bay FM Prairie FM Winnipegosis FM Ashern FM Interlake FM Stonewall FM Stony Mountain FM Herald FM Yeoman FM Winnipeg FM Deadwood FM Canadian Shield