Usage:
Nunn Member of Lake Valley Limestone (NM*)
Nunn Member of Lake Valley Formation (NM*)
Geologic age:
Early Mississippian (Tournaisian; Osagean)*
Type section, locality, area and/or origin of name:
Type section: on Apache Hill, at the type section of Lake Valley Formation, near Lake Valley, in NE/4 NW/4 sec. 21, T. 18 S., R. 7 W., Sierra Co., NM (Laudon and Bowsher, 1949).
AAPG geologic province:
Orogrande 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 ([ ]).