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Black River Escarpment (Ontario) : ウィキペディア英語版 | Black River Escarpment (Ontario)
The Black River Escarpment is a geological feature in Southeastern Ontario.〔 (mirror ) 〕〔 〕 The escarpment marks the boundary of the older Canadian Shield bedrock and more recent Ordovician limestone. The escarpment runs from Penetanguishene on Georgian Bay to Kingston on Lake Ontario. The cliffs that mark the escarpment, when present, generally average between and high. ==See also==
*Niagara Escarpment *Onondaga Escarpment *Helderberg Escarpment
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「Black River Escarpment (Ontario)」の詳細全文を読む
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