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NGMDB

Geologic Unit: Knox

Usage:

Knox Dolomite (AL*,IN,KY*,MS,OH*,TN*)
Knox Group (AL,GA*,IL*,KY*,TN*,VA*,WV)
Knox Supergroup (IN,KY,OH)
/Knox megagroup [informal] (IL,KY)

["Megagroup" not recognized as a formal stratigraphic rank term (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). Considered informal and should not be capitalized.]


Subunits:

GROUP STATUS: Copper Ridge Dolomite, Chepultepec Dolomite, Longview Dolomite, Kingsport Limestone, Mascot Dolomite (TN,VA*); Copper Ridge Dolomite, Chepultepec Dolomite, Longview Dolomite, Newala Dolomite (AL,GA,KY*); Copper Ridge Dolomite, Chepultepec Dolomite, Kingsport Limestone, Mascot Dolomite (TN*); Odenville Limestone (AL); Rose Run Sandstone (KY*).


Geologic age:

Late Cambrian to Early Ordovician*


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

Type area: Knox Co., TN (Safford, 1869).


AAPG geologic province:

Appalachian basin*
Illinois basin*
Black Warrior basin


NGMDB

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 ([ ]).

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Page Last Modified: Tue Jun 3 16:15:34 2014