U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: Chepultepec

Usage:

Chepultepec Dolomite (AL*)
Chepultepec Dolomite of Beekmantown Group (KY,OH,TN)
Chepultepec Dolomite of Knox Group (AL,GA*,KY*,TN*,VA*)
Chepultepec Formation (GA,WV)
Chepultepec Formation of Knox Group (TN,VA)
Chepultepec Dolomite Member of Beekmantown Formation of Knox Group (VA)


Geologic age:

Early Ordovician*; locally latest Cambrian*


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

Named from exposures near Chepultepec [now Allgood], 30 mi northeast of Birmingham, Blount Co., north-central AL (US geologic names lexicons, USGS Bull. 896, 1200).


AAPG geologic province:

Appalachian 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 ([ ]).