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National Geologic Map Database

Geologic Unit: St. Joe

Usage:

St. Joe Limestone Member of Boone Formation (AR*,OK*)
St. Joe Limestone Member of Fern Glen Limestone (KS*)
St. Joe Limestone (AR-local)


Subunits:

Walls Ferry Limestone Bed (AR*).


Geologic age:

Mississippian, Early*
Kinderhookian*
Osagean*


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

Named from exposures at St. Joe, Searcy Co., north-central AR (Hopkins, 1893).
Principal reference section: in quarry 2 mi northwest of St. Joe, in NE/4 NW/4 sec. 18, T. 16 N., R. 17 W. [From Arkansas Strat. Sum., J.D. McFarland, compiler, 2004]


AAPG geologic province:

Arkoma 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 ([ ]).