Usage:
/Whalen Group (WY*)
[A "group" consists of 2 or more formations (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005).]
Subunits:
Informal subunits (ascending): "formation of Muskrat Canyon," "metabasalt of Mother Featherlegs," "schist of Silver Springs," and "formation of Wildcat Hills."
Geologic age:
Late Archean or Early Proterozoic*
Type section, locality, area and/or origin of name:
Named from exposures in walls of Whalen Canyon, Goshen Co., WY (Smith, 1903).
AAPG geologic province:
Northern Rocky Mountain region*
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 ([ ]).