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National Geologic Map Database

Geologic Unit: Pond Brook

Usage:

Pond Brook interval (informal) of /Elma submember [informal] of Ledyard Member of Ludlowville Formation (NY)

Informal. The rank or lithologic term should not be capitalized. [Elma submember considered informal until formally publishedd in accord with NACSN (2021). The rank or lithologic term should not be capitalized.]


Subunits:

informal Mount Vernon beds (NY).


Geologic age:

Middle Devonian


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

Not designated. Named from north-flowing tributary of Buffalo Creek in Elma Twp., Erie Co., west-central NY (McCollum, 1991).


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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).