Usage:
No current usage.
(†Bancroft Springs Basalt of Snake River Group (ID) replaced with McKinney Basalt. See McKinney.)
Geologic age:
Quaternary (late Pleistocene)
Type section, locality, area and/or origin of name:
Type locality: Bancroft Springs, which issue from talus slope near base of basalt in northeastern wall of Snake River Canyon, 7 mi east of Glenns Ferry, Elmore Co., southwestern ID (Malde and Powers, 1962).
AAPG geologic province:
Snake River 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 ([ ]).