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Spray River Formation : ウィキペディア英語版 | Spray River Formation
The Spray River Formation is a geologic formation in Alberta. It preserves fossils〔(【引用サイトリンク】author= Various Contributors to the Paleobiology Database )〕 dating back to the Triassic〔(【引用サイトリンク】author=AAPG Datapages: M. Shafiuddin )〕 period. It is divided into the Sulphur Mountain Member (older) and Whitehorse Member (younger). ==Lithology== The Spray River Formation consists of dolomitic and calcitic siltstones, silty dolomites and dolomitic limestones and dolomitic very fine sandstones (Sulphur Mountain Member) and dolomites, dolomitic siltstones and limestones and dolomitic and calcitic orthoquartzites and protoquartzites (Whitehorse Member).〔
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「Spray River Formation」の詳細全文を読む
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