Usage:
Cooks Formation of El Paso Group (NM,TX?)
Geologic age:
Ordovician, Early
Canadian, middle
Type section, locality, area and/or origin of name:
Type section: in northern end of Cooks Range [Luna Co., NM]. Named from the defunct town of Cooks, 12 mi north of Deming, which is as reasonably close to the type section in the northern end of the Cooks Range as a named place can be found (Flower, 1964).
AAPG geologic province:
Basin-and-Range province
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 ([ ]).