Usage:
Apache Group (AZ*)
Subunits:
(alphabetical) --all in AZ: Barnes Conglomerate, Dripping Spring Formation* or Dripping Spring Quartzite*, Mescal Formation* or Mescal Limestone*, Pioneer Formation*, or Pioneer Quartzite* or Pioneer Shale*, Roosevelt Formation*, Scanlan Conglomerate.
Geologic age:
Mesoproterozoic*
Type section, locality, area and/or origin of name:
Named from exposures on western face of Apache Mountains, [Globe quadrangle, Gila Co.], central AZ (US geologic names lexicons, USGS Bull. 896, 1200).
AAPG geologic province:
Southwestern Basin-and-Range region*
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 ([ ]).