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National Geologic Map Database

Geologic Unit: Conneaut

Usage:

Conneaut Formation (NY,OH,PA)
Conneaut Group (NY,PA)


Subunits:

GROUP STATUS (alphabetical): Chadakoin Formation (NY), Cotton Formation (NY,PA), Cuba Sandstone (NY), Dexterville Formation (NY), Ellicott Shale (NY), Germania Formation (NY,PA), Girard Formation (PA), Rawson Formation (NY), Sunfish Formation (PA), Wellsville Formation (NY), Whitesville Formation (NY).


Geologic age:

Late Devonian


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

Named from exposures on Conneaut Creek, northwestern PA (Caster, 1934; Chadwick, 1934; Chadwick, 1935).


AAPG geologic province:

Appalachian basin


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