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  • Usage in publication:
    • Bernadotte cyclical formation
  • Modifications:
    • Original reference
  • AAPG geologic province:
    • Illinois basin
Publication:

Wanless, H.R., 1931, Pennsylvanian cycles in western Illinois, IN Papers presented at the Quarter centennial celebration of the Illinois State Geological Survey: Illinois Geological Survey Bulletin, no. 60, p. 179-193.


Summary:

Bernadotte cyclical formation. [A name applied to a middle portion of Pottsville formation (Pennsylvanian) of central-western Illinois, based upon the rhythmic-cycle theory of sedimentation. Origin of name not stated.]

Source: US geologic names lexicon (USGS Bull. 896, p. 169).


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 ([ ]).

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