Usage:
Blue Sphinx Tuff (NV*)
Geologic age:
Miocene*
Oligocene*
Type section, locality, area and/or origin of name:
Blue Sphinx monolith, south of Golden Pen Mine, in sec. 33, T. 11 N., R. 32 E., east flank of Gabbs Valley Range, Mineral Co., NV (Ekren and others, 1980).
Because base is poorly exposed, reference locality is designated just north of Nugent Wash, in sec. 18, T. 11 N., R. 32 E. (Ekren and others, 1980).
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 ([ ]).