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National Geologic Map Database

Geologic Unit: Bailey

Usage:

Bailey Formation (MO)
Bailey Limestone (IL*,KY*,MO*)
Bailey Limestone of Bainbridge Group (IN)


Geologic age:

Late Silurian to Early Devonian (late Pridoli to Lochkovian)*


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

Named from settlement of Bailey's Landing on Mississippi River, Perry Co., eastern MO, a short distance above present Red Rock Landing (US geologic names lexicons, USGS Bull. 896, 1200).
Neotype area: outcrops in river bluffs at and north of Red Rock Landing, [Salem Twp., in T. 35 N., R. 12 E., Altenburg and Campbell Hill 15-min quadrangles], Perry Co., MO, where beds crop out in a fault block tilted toward river and exposed southeastward along fault zone in a narrow discontinous band almost to Brazeau Creek, in NW/4 sec. 11, T. 34 N., R. 13 E., [Brazeau Twp., Altenburg 15-min quadrangle, Perry Co., MO] (Croneis, 1944).


AAPG geologic province:

Illinois basin*
Upper Mississippi embayment*


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 ([ ]).