Usage:
Agate Creek Tuff (CO)
Agate Creek Formation (CO)
(†Agate Creek Tuff or †Agate Creek Formation abandoned by the USGS. Replaced with Wall Mountain Tuff. See Wall Mountain.)
Geologic age:
early Tertiary (Oligocene)
Type section, locality, area and/or origin of name:
Type exposures: on south flank of syncline near Agate Creek, in NE/4 SE/4 sec. 7 and NW/4 SW/4 sec. 8, T. 14 S., R. 75 W., Antero Reservoir quadrangle, southwestern South Park, Park Co., central CO (De Voto, 1964).
AAPG geologic province:
South Park 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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).