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Belloy Formation : ウィキペディア英語版 | Belloy Formation
The Belloy Formation is a stratigraphical unit of Permian age in the Western Canadian Sedimentary Basin. It takes the name from the hamlet of Belloy, Alberta, and was first described in the Imperial Belloy 12-14-78-1W6M well by H.L. Halbertsma in 1959.〔Halbertsma, Henk Leendert, 1959. Nomenclature of Upper Carboniferous and Permian strata in the subsurface of the Peace River area; Canadian Society of Petroleum Geologists, Journal of the Alberta Society of Petroleum Geologists, vol. 7, no. 5 (May), pp.109-118.〕 ==Lithology and Depositional Setting== The Belloy Formation is composed of mixed carbonate-siliciclastic sequences of cherty dolostone and sandstone, glauconitic and quartz sandstones, phosphorite, siltstones and conglomerate with phosphatic chert pebbles. The Belloy was deposited along a northwest-trending, tidally-influenced, west-prograding shoreline.
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