Usage:
Big Island Formation (ID*,NV*)
Geologic age:
Tertiary, late*
Miocene, late*
Type section, locality, area and/or origin of name:
Type section: west wall of Jarbidge River Canyon, about 122 m west-northwest of confluence of Buck Creek and Jarbridge River, in center N/2 sec. 28, T. 16 S., R. 9 E., Dishpan quadrangle, southeast Owyhee Co., southwestern ID. Named from Big Island, a plateau on east and west sides of Jarbridge River, Elko Co., NV, and Owyhee Co., ID (Coats, 1985).
AAPG geologic province:
Snake River basin*
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 ([ ]).