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National Geologic Map Database

Geologic Unit: Huron

Usage:

Huron Bed of Gassaway Member of Chattanooga Shale (AL*,GA*,KY*,TN*)
Huron Member of Ohio Shale (KY*,OH*,TN*,PA*,VA*,WV*)
Huron Shale (OH)
Huron Shale of New Albany Group (IN,KY)
Huron Shale Member of Chattanooga Shale (VA)


Geologic age:

Late Devonian (Famennian)*


Type section, locality, area and/or origin of name:

Named from exposures on Huron River, from Berea west to Norwalk where the Huron forms cliffs 5 to 70 ft high, Huron and Erie Cos., northern OH (US geologic names lexicons, USGS Bull. 896, 1200).


AAPG geologic province:

Appalachian basin*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).