U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Nounan
Search archives
Map showing publication footprint
  • Usage in publication:
    • Nounan formation*
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Wasatch uplift
Publication:

Walcott, C.D., 1908, Cambrian geology and paleontology, I; No. 1, Nomenclature of some Cambrian Cordilleran formations: Smithsonian Miscellaneous Collections, v. 53, no. 1804, p. 1-12.


Summary:

Pg. 6. Nounan formation. Light-gray to dark lead-colored arenaceous limestones, 1,041 feet thick in Blacksmith Fork Canyon, Cache County, northeastern Utah, and 814 feet west of Liberty, Beark Lake County, southeastern Idaho. Overlies Bloomington formation and underlies St. Charles formation. Age is Middle Cambrian.
Type locality: east slope of Soda Peak, west of Nounan, Bear Lake Co., southeastern ID. Nounan Creek Canyon cuts through the formation.

Source: US geologic names lexicon (USGS Bull. 896, p. 1518).


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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 04:04:15 PM MDT