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NGMDB

Geologic Unit: Monte Cristo

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*


NGMDB

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 ([ ]).

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Page Last Modified: Tue Jun 3 17:19:55 2014