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The Trout River Formation is a stratigraphical unit of Late Devonian age in the Western Canadian Sedimentary Basin. It takes the name from the Trout River, and was first described on the banks of the river, upstream from the Mackenzie River, by C.H. Crickmay in 1953.〔Crickmay, C.H., 1953. New Spiriferidae from the Devonian of western Canada. Pub. by author, Imperial Oil Limited, Calgary, 11p.〕〔Crickmay, C.H., 1957. Elucidation of some Western Canada Devonian Formations; published by the author, Imperial Oil Limited, Calgary, Alberta, 14 p.〕 ==Lithology== The Trout River Formation is composed bedded limestone (top), silty limestone and shale (middle), silty limestone and calcareous siltstone (base). 〔 〕 Brachiopod and coral paleo-fauna can be found in outcrops. 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「Trout River Formation」の詳細全文を読む スポンサード リンク
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