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National Geologic Map Database

Geologic Unit: Dripping Spring

Usage:

Dripping Spring Quartzite of Apache Group (AZ*)
Dripping Spring Formation of Apache Group (AZ*)


Subunits:

Barnes Conglomerate Member (AZ*).


Geologic age:

Middle Proterozoic*


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

Named from Dripping Spring Mountains, Globe quadrangle, which owe their boldly scarped outlines to these quartzites and the underlying Barnes conglomerate (US geologic names lexicons, USGS Bull. 896, 1200).
Reference section: in Deep Spring Canyon, 3,500 ft north of its confluence with Bull Canyon, Gila Co., AZ (Granger and Raup, 1964).
Reference section: in SW/4 SW/4 sec. 18 T. 5 N., R. 15 E., Gila Co., AZ (Shride, 1967).


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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).