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La Biche Group : ウィキペディア英語版 | La Biche Group
The Labiche Formation is a stratigraphical unit of late Albian to Santonian age in the Western Canadian Sedimentary Basin. It takes the name from La Biche River, a tributary of the Athabasca River, and was first described in outcrop in the Athabasca River valley by R.G. McConnell in 1892.〔McConnell, R.G., 1893. Report on a portion of the district of Athabasca, comprising the country between Peace River and Athabasca River north of Lesser Slave Lake. Geological Survey of Canada, Annual Reptort (new series), 1890-91, v. 5, Part 1, p. 1-67.〕 ==Lithology== The Labiche Formation is composed shale with flakes of coccolithic debris, Inoceramus prisms, pyrite. 〔 〕
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