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Geologic Unit: Winnebago
Map showing publication footprint
  • Usage in publication:
    • Winnebago shale member
  • Modifications:
    • Named
  • Dominant lithology:
    • Shale
  • AAPG geologic province:
    • Forest City basin
    • Nemaha anticline
Publication:

Condra, G.E., 1935, Geologic cross-section, Forest City, Missouri to south of Du Bois, Nebraska: Nebraska Geological Survey Paper, no. 8, 23 p., Issued late in 1935. See also USGS unpub. corr. charts of Pennsylvanian and Permian rocks of KS and NE, compiled by M.G. Wilmarth, Secretary of Committee on Geologic Names, Oct. 1936


Summary:

Pg. 5, 10. Winnebago shale member of Burlingame limestone formation of Wabaunsee group. Bluish argillaceous shale with some limy fossiliferous seams. Thickness 8 to 12 feet. Middle member of Burlingame. Traced through Kansas to Oklahoma. Age is Late Pennsylvanian (Virgil). [See also under South Fork.]
Type locality: in Missouri River bluffs south of mouth of Winnebago Creek, north of Rulo, Richardson Co., NE.

Source: US geologic names lexicon (USGS Bull. 896, p. 2031, South Fork entry p. 2352); GNC KS-NE Pennsylvanian Corr. Chart, sheet 2, Oct. 1936.


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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