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National Geologic Map Database

Geologic Unit: Big Dome

Usage:

Big Dome Formation (AZ*)


Geologic age:

Tertiary, late*
Miocene, early* or Miocene, middle*


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

Big Dome, on west side of Mineral Creek, in W/2 sec. 25, T. 3 S., R. 13 E., Sonora quadrangle, Pinal Co., southeastern AZ (Krieger and others, 1974).


AAPG geologic province:

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 ([ ]).