Pg. 69, 98, 127. Brecksville shale member of Orangeville formation. Blackish or bluish black shale, with few thin sandstones, 105 feet thick; forming major part of Orangeville formation. Underlain by Aurora sandstone member of Orangeville [0 to 10 feet thick] and overlain by Royalton formation. Age is Mississippian.
Named from Brecksville, Cuyahoga Co., northeastern OH.
Source: US geologic names lexicon (USGS Bull. 896, p. 258).
ā Brecksville shale member of Orangeville shale abandoned. Corresponds to all of Orangeville shale except basal 10 to 20 feet. (See USGS Bull. 818, 1931).
Source: US geologic names lexicon (USGS Bull. 896, p. 258).
Pg. 137. Noted as Brecksville shale in Orangeville shale member of Cuyahoga formation. Age is Mississippian.
Source: US geologic names lexicon (USGS Bull. 1200, p. 466).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).