Usage:
Big Hole Basalt (ID*)
Big Hole Basalt of Snake River Group (ID*)
Geologic age:
late Pleistocene*
Type section, locality, area and/or origin of name:
Type locality: Big Hole, a basalt-rimmed inlet on west side of the American Falls Reservoir, about 3 mi east of Aberdeen, [in T. 5 S., R. 32 E.], American Falls quadrangle, Bingham Co., southeastern ID (Carr and Trimble, 1963).
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 ([ ]).