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National Geologic Map Database

Geologic Unit: McNairy

Usage:

McNairy Formation (IL,MO,TN,KY*)
McNairy Sand (IL*,KY*,MO*,TN*)
McNairy Sand Member of Ripley Formation (MO*)


Subunits:

Levings Member (IL). Zadoc Member (MO).


Geologic age:

Late Cretaceous*


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

Cut on the Southern RR, 1.5 mi west of Cypress Station, McNairy Co., TN (Stephenson, 1914).


AAPG geologic province:

Upper Mississippi embayment*
Illinois 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 ([ ]).