Gerster Formation (UT*)
Gerster Formation of Park City Group (NV*,UT*)
Gerster Limestone of Park City Group (NV*,UT*)
Middle Permian (Guadalupian; Wordian)*
Named from exposures in Gerster Gulch, in northwestern corner of Gold Hill 15-min quadrangle [1975 ed.], Gold Hill district, Tooele Co., western UT (Nolan, 1930; see also Nolan's USGS Prof. Paper 177, 1935).
Great Basin province*
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.
"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 ([ ]).