Usage:
Fourmile Draw Member of San Andres Formation (NM)
Geologic age:
early Permian (Leonardian)
Type section, locality, area and/or origin of name:
Type locality: Fourmile Draw, in T. 18 S., R. 19 through 21 E., [approx. Lat. 42 deg. 30 min. N., and btw. Long. 104 deg. 45 min. and Long. 105 deg. 00 min., Holt Tank and Encino Draw 7.5-min quadrangles, Chaves and Eddy Cos.], southeastern NM. Named from Fourmile Draw (Kelley, 1971).
AAPG geologic province:
Permian 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 ([ ]).