Usage:
Monte Cristo Group (NV*)
Monte Cristo Limestone (AZ*,CA*,NV?,UT*)
Monte Cristo Dolomite (NV*-recognized locally in Sloan district)
Subunits:
GROUP STATUS (alphabetical): Anchor Limestone (NV), Arrowhead Limestone (NV), Bullion Dolomite (NV), Dawn Limestone (NV), Yellowpine Limestone (NV).
FORMATION STATUS (alphabetical): Anchor Member (AZ*,CA*,NV*), Arrowhead Member (AZ*,CA*,NV*), Bullion Dolomite Member (CA*,NV*) or Bullion Member (AZ*,NV*), Dawn Member (AZ*,CA,NV*), Yellowpine Member (AZ*,CA*,NV*).
Geologic age:
Early to Middle Mississippian (Tournaisian to Visean; Kinderhookian to Meramecian)*
Type section, locality, area and/or origin of name:
Named from exposures near Monte Cristo Mine, Goodsprings [special] quadrangle, Clark Co., NV (Hewett, 1931; 1956).
AAPG geologic province:
Plateau sedimentary province*
Great Basin province*
Mojave 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 ([ ]).