Usage:
Nomlaki Tuff (CA)
Nomlaki Tuff Member of Tuscan Formation (CA*)
Nomlaki Tuff Member of Tehama Formation (CA*)
Nomlaki Tuff Member of Laguna Formation (CA*)
Geologic age:
late Tertiary (Pliocene)*
Type section, locality, area and/or origin of name:
Type locality: at former headquarters of old Nomlaki Indian Reservation about 6 mi northeast of Paskenta, Tehama Co., northwestern CA (Anderson and Russell, 1939).
Named from exposures on old Nomlaki Indian Reservation, Tehama Co., northwestern CA (Russell and Vander Hoof, 1931).
AAPG geologic province:
Sacramento basin*
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 ([ ]).