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National Geologic Map Database

Geologic Unit: Arkansas

Usage:

Arkansas Novaculite (AR*,OK*)


Subunits:

Pinetop Chert [Bed] (OK).


Geologic age:

Devonian*
Mississippian*


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

Named from quarries in Arkansas (especially near Hot Springs, Garland Co.) and for fact that the quarried rocks have long been known to the trade as "Arkansas Novaculite" (US geologic names lexicon, USGS Bull. 896; McFarland, 2004).


AAPG geologic province:

Ouachita folded belt*


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 ([ ]).