翻訳と辞書 Words near each other ・ Caire ・ Cairell mac Fiachnai ・ Cairell mac Muiredaig Muinderg ・ Cairenn ・ Caires ・ Caires Parish ・ Cairina ・ Cairine Wilson ・ Cairine Wilson Secondary School ・ Cairistìona ・ Cairn ・ Cairn (disambiguation) ・ Cairn Bannoch ・ Cairn Curran Reservoir ・ Cairn Energy ・ Cairn Formation ・ Cairn Gorm ・ Cairn Hill ・ Cairn in Snow ・ Cairn India ・ Cairn Island ・ Cairn Lee ・ Cairn Magazine ・ Cairn Mon Earn ・ Cairn na Burgh Beag ・ Cairn na Burgh Mòr ・ Cairn O' Mounth ・ Cairn of Claise ・ Cairn Ridge ・ Cairn Rouge Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Cairn Formation ： ウィキペディア英語版 Cairn Formation The Cairn Formation is a geologic formation of Late Devonian (Frasnian) age in the Western Canada Sedimentary Basin. It was named for the Cairn River near its junction with the Southesk River in Jasper National Park by D.J. McLaren in 1955.〔McLaren, D.J. 1955. Devonian formations in the Alberta Rocky Mountains between the Bow and Athabasca Rivers. Geological Survey of Canada, Bulletin 35.〕 The Cairn Formation is stratigraphically equivalent to the Leduc Formation, which is a major oil-producing formation in central Alberta. Like the Leduc Formation, it was deposited in reef environments and is highly fossiliferous.〔Shields, M.J. and Geldsetzer, H.H.J. 1992. The MacKenzie margin, Southesk-Cairn carbonate complex: depositional history, stratal geometry and comparison with other Late Devonian platform-margins. Bulletin of Canadian Petroleum Geology, vol. 40, no. 3, p. 274-293.〕〔Bloy, G.R., Hunter, I.G. and Leggett, S.R. 1984. Depositional environments of the Devonian Cairn Formation, Rocky Mountain front ranges, Canmore, Alberta. Carbonates in subsurface and outcrop: 1984 CSPG Core Conference, Canadian Society of Petroleum Geologists, p. 148.〕 Extensive outcrops of the Cairn Formation near Canmore, Alberta are a popular field trip destination for those wishing to learn about Devonian reefs. They are also popular with rock climbers who enjoy the challenges presented by its extremely irregular surfaces. ==Lithology== The Cairn Formation was originally deposited as limestones and mudstones in intertidal to subtidal reef environments, and was extensively dolomitized during later diagenesis. It now consists primarily of buff to dark grey, very fine to medium grained crystalline dolostone with good intercrystalline, biomoldic and vuggy porosity. Most of it is classified as floatstone, with stromatoporoids and other fossils supported in a dolostone matrix. 〔〔Bloy, G.R., Leggett, S.R. and Hunter, I.G. 1989. The lower Fairholme reef complex (Cairn Formation), White Man Gap area, Canmore, Alberta. In: Reefs, Canada and adjacent areas. Canadian Society of Petroleum Geologists, Memoir 13, p. 399-402.〕 The Cairn also includes minor amounts of undolomitized limestone and chert.〔 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「Cairn Formation」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.