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National Geologic Map Database

Geologic Unit: Curzon

Usage:

Curzon Limestone Member of Topeka Formation of Shawnee Group (IA*,MO*,NE*)
Curzon Limestone Member of Topeka Limestone of Shawnee Group (KS*)
Spelled Curzons, Curzen, and Curzen's in early reports.


Geologic age:

Late Pennsylvanian (Virgilian)*


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

East of Curzon Station, southeast of Forest City, Holt Co., MO. Named from Curzon, Holt Co., MO (Condra, 1927; Condra and Reed, 1937).


AAPG geologic province:

Forest City basin*
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 ([ ]).