U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database

Geologic Unit: White Knob

Usage:

White Knob Group (ID,MT)
White Knob Limestone (ID*)


Subunits:

GROUP STATUS --all in (ID,MT): Middle Canyon Formation, Scott Peak Formation, South Creek Formation, Surrett Canyon Formation.


Geologic age:

Mississippian, Late*
Chesterian*
Meramecian*
Namurian*
Visean*


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

On ridge above Cabin Creek, Custer Co., ID (Ross, 1962).


AAPG geologic province:

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