Usage:
No current usage.
(†Hedwig Breccia Member of Esmeralda Formation or †Hedwig Breccia (NV) replaced with "megabreccia unit of Sloppy Gulch" and assigned to lower member of Round Rock Formation. See Round Rock.)
Geologic age:
Tertiary
Oligocene, late
Type section, locality, area and/or origin of name:
Named from outcrops in vicinity of Hedwig claim, Manhattan district, Toquima Range, Nye Co., NV (Ferguson, 1924).
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 ([ ]).