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National Geologic Map Database

Geologic Unit: Bertie

Usage:

Bertie Dolomite of Bass Islands Group (PA)
Bertie Formation of Salina Group (NY)
Bertie Limestone of Salina Group (NY*)
Bertie Group (NY)


Subunits:

Fort Hill Waterlime (NY), Oatka (NY), Fiddlers Green (NY), Scajaquada (NY), Williamsville (NY), Cobleskill (NY) Formations, Akron Dolostone (NY), and Moran Corner Waterlime (NY)


Geologic age:

Late Silurian*


Type section, locality, area and/or origin of name: (See Canadian Lexicon)

Named from exposures at Bertie (and in Bertie Twp.), Ontario, Canada, about 6 mi west of Buffalo, NY (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 ([ ]).