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National Geologic Map Database

Geologic Unit: Abrigo

Usage:

Abrigo Formation (AZ*)
Abrigo Limestone (AZ*-recognized locally in Mule Mountains, the type area)


Subunits:

(alphabetical) --all in AZ*: Copper Queen Member, Peppersauce Member, Southern Belle Member, Three C Member.


Geologic age:

Middle and Late Cambrian*


Type section, locality, area and/or origin of name:

Type section: on opposite side of Escabrosa Ridge from Abrigo Canyon, on north slope of Mount Martin, in SW/4 SE/4 sec. 7, T. 23 S., R. 24 E., [Bisbee quadrangle], Cochise Co., AZ (Ransome, 1904; Hayes and Landis, 1965).
Named from exposures in Abrigo Canyon, in southern part of Mule Mountains, 3 mi southwest of Bisbee, Cochise Co., AZ (Ransome, 1904).


AAPG geologic province:

Basin-and-Range province*
Pedregosa 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).