Usage:
Bullion Limestone of Monte Cristo Group (NV*)
Bullion Dolomite of Monte Cristo Group (NV*-recognized locally near "type")
Bullion Member of Monte Cristo Dolomite (NV*-recognized locally in Sloan district)
Bullion Member of Monte Cristo Limestone (AZ*,CA*,NV?)
Bullion Dolomite Member of Monte Cristo Limestone (AZ*,CA*,NV?)
[?] Bullion Member of Redwall Limestone (UT)
Geologic age:
late Early to Middle Mississippian (late Tournaisian to Visean; Osagean to Meramecian)*
Type section, locality, area and/or origin of name:
Named from exposures near Bullion Mine, in sec. 23, T. 25 S., R. 58 E., Goodsprings [special] quadrangle, Clark Co., NV (Hewett, 1931).
AAPG geologic province:
Great Basin province*
Plateau sedimentary 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 ([ ]).