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National Geologic Map Database

Geologic Unit: Roberts

Usage:

No current usage.
(Rocks of †Roberts Formation (CA) reallocated to Wyman Formation. See Wyman.)


Geologic age:

Precambrian


Type section, locality, area and/or origin of name:

Notable exposures in Wyman Canyon [Wyman Creek], Inyo Range, [Blanco Mountain 15-min quadrangle], Inyo Co., central eastern CA (Maxson [abs.], 1934, 1935).


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 ([ ]).