Usage:
Ash Creek Group (AZ*)
Subunits:
(alphabetical) --all in AZ: Brindle Pup Andestie*, Buzzard Rhyolite*, Cleopatra Formation, Deception Formation or Deception Rhyolite*, Del Monte Formation, Gaddes Basalt*, Grapevine Gulch Formation*, Shea Basalt* or Shea Formation.
Geologic age:
Paleoproterozoic*
Type section, locality, area and/or origin of name:
Named from Ash Creek, which cuts through representative section south of Mingus Mountain, Yavapai Co., central AZ (Anderson and Creasey, 1958).
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 ([ ]).