Usage:
No current usage.
(Rocks of †Arrey Formation of †Green Canyon Group (NM-nobably in Derry area) reallocated to Red House Formation. See Red House.)
Geologic age:
Middle Pennsylvanian (Atokan)
Type section, locality, area and/or origin of name:
Type section: measured on west-facing slope of hill about 0.75 mi east of village of Derry, in sec. 32, T. 17 S., R. 4 W., [Garfield 7.5-min quadrangle], Sierra Co., southwestern NM. Named from small village of Arrey, on west side of Rio Grande on Highway 85, 4.5 mi northwest of Derry, Sierra Co., southwestern NM (Thompson, 1942).
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 ([ ]).