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National Geologic Map Database

Geologic Unit: Union

Usage:

No current usage.
(†Union Limestone (NE) abandoned. Replaced with Coal Creek Limestone Bed of Topeka Limestone Member of Shawnee Formation. See Coal Creek.)


Geologic age:

Pennsylvanian
Virgilian


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

Exposed in old quarry at Union, Cass Co., in valley side in NW/4 sec. 22, T. 10 N., R. 13 E., and 1.5 mi southwest of Union, in secs. 33 and 28, T. 10 N., R. 13 E., southeastern NE. Named from Union, Cass Co., NE (Condra and Bengtson, 1915).


AAPG geologic province:

Nemaha anticline


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 ([ ]).