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National Geologic Map Database

Geologic Unit: Wood River

Usage:

Wood River Formation of Sun Valley Group (ID*)


Subunits:

(alphabetical) --all in ID: /Eagle Creek Member*, Hailey Conglomerate Member or Hailey Member*, Wilson Creek Member*.


Geologic age:

Pennsylvanian, Middle*
Desmoinesian*
Pennsylvanian, Late*
Missourian*
Virgilian*
Permian, Early*
Wolfcampian*
Leonardian(?)*


Type section, locality, area and/or origin of name:

Not designated; probably named from the Wood River, Blaine Co., ID (Lindgren, 1900).


AAPG geologic province:

Snake River basin*
Idaho Mountains 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 does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).