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National Geologic Map Database

Geologic Unit: Bergstrom

Usage:

Bergstrom Formation of Taylor Group (TX*)


Geologic age:

Late Cretaceous (Campanian)*


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

Type locality: roadcuts along Farm Road 973, east of Moore and Berry's Crossing (mistakenly shortened to Moore's Crossing on TX Hwy. Dept. Travis Co. Hwy. map and USGS Montopolis quadrangle, topographic) of Onion Creek, just east of Bergstrom Field, Travis Co., central eastern TX (Young, 1965).


AAPG geologic province:

Ouachita folded belt*


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 ([ ]).