Usage:
Hachita Formation of Escabrosa Group (AZ*,NM*)
Hachita Member of Escabrosa Limestone (NM*-recognized locally in Big Hatchet Mountains)
Geologic age:
Mississippian, Early*
Mississippian, Late*
Type section, locality, area and/or origin of name:
Type section: south end of Blue Mountain, Chiricahua Mountains, in S/2 sec. 20, T. 16 S., R. 30 E., Cochise Co., southeastern AZ (Armstrong, 1962).
AAPG geologic province:
Pedregosa basin*
Basin-and-Range province*
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 ([ ]).