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Fort Payne Formation : ウィキペディア英語版 | Fort Payne Formation The Fort Payne Formation, or ''Fort Payne Chert'', is a geologic formation found in the southeastern region of the United States. 〔(USGS.gov: Fort Payne Formation )〕 It is a Mississippian Period cherty limestone, that overlies the Chattanooga Shale (or locally the Maury Formation), and underlies the St. Louis Limestone (lower Tuscumbia Limestone in Alabama). To the north, it grades into the siltstone Borden Formation. 〔 Eugene Allen Smith named the Fort Payne Formation for outcrops at Fort Payne, Alabama. ==See also==
* * * Mississippian (geologic period)
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「Fort Payne Formation」の詳細全文を読む
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