Usage:
/Big Valley Mountains volcanic series [informal] (CA)
[When referring to the Big Valley Mountains volcanic series of CA Dept. Water. Res. (1963), please use informally. Or, see NACSN (2021, Art. 29a, 38) for suggestions on replacement terms. The practice of employing "Series" for lithostratigraphic or lithodemic nomenclature is now regarded as improper (ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). The term "Series" is applied formally only to chronostratigraphic units.]
Geologic age:
Tertiary, late
Miocene to Pliocene
Type section, locality, area and/or origin of name:
Not synopsized to date.
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 ([ ]).