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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pottsville Formation ： ウィキペディア英語版 Pottsville Formation The Pennsylvanian Pottsville Formation is a mapped bedrock unit in Pennsylvania, western Maryland, West Virginia, and Ohio. The formation is also recognized in Alabama. It is a major ridge-former in the Ridge-and-Valley Appalachians of the eastern United States. The Pottsville Formation is conspicuous at many sites along the Allegheny Front, the eastern escarpment of the Allegheny or Appalachian Plateau. ==Description== The Pottsville Formation consists of a gray conglomerate, fine to coarse grained sandstone, and is known to contain limestone, siltstone and shale, as well as anthracite and bituminous coal.〔(【引用サイトリンク】title=GeoLex: Geologic Unit: Pottsville )〕 It is considered a classic orogenic molasse. The formation was first described from a railroad cut south of Pottsville, Pennsylvania.〔 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「Pottsville 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.