Usage:
Decatur Limestone (KY,TN*)
Decatur Limestone of Brownsport Group (TN)
Geologic age:
Silurian to Early Devonian*
Type section, locality, area and/or origin of name:
Type section: at Tuck's Mill, 1.5 mi north of Decaturville, Decatur Co., west-central TN (Pate and Bassler, 1908).
AAPG geologic province:
Cincinnati arch*
Illinois 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 ([ ]).