National Geologic Map Database
Geologic Unit: Calloway Well
Usage:
Geologic age:
Type section, locality, area and/or origin of name:
AAPG geologic province:
Usage:
Calloway Well Formation (NV)
Geologic age:
early Tertiary (Oligocene)
Type section, locality, area and/or origin of name:
Notable exposures in Grant Range, Nye Co., east-central NV (Scott, 1965 [abs.], 1966).
AAPG geologic province:
Great Basin 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 ([ ]).