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Geologic Unit: Dunlap
Map showing publication footprint
  • Usage in publication:
    • Dunlap limestone
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Limestone
  • AAPG geologic province:
    • Forest City basin
    • Nemaha anticline
Publication:

Kirk, M.Z., 1896, A geologic section along the Neosho and Cottonwood Rivers [Kansas], Chapter III, IN Haworth, Erasmus, and others, [Stratigraphy of the Carboniferous of Kansas and allied subjects]: Kansas Geological Survey [Report], v. 1, p. 72-85.


Summary:

Pg. 81, 82. Dunlap limestone. Two limestones, separated by 9 to 20 feet of shale. Separated from overlying Cottonwood Falls limestone by 25 to 30 feet of shale and from underlying Americus limestone by 50 feet of shale. Age is Pennsylvanian. Report includes cross section.

Source: US geologic names lexicon (USGS Bull. 896, p. 643).


Map showing publication footprint
  • Usage in publication:
    • Dunlap limestone†
  • Modifications:
    • Abandoned
Publication:

Wilmarth, M.G., 1935, [Selected Geologic Names Committee remarks (ca. 1930-1935) on Carboniferous and Permian rocks of the Midcontinent], IN Wilmarth, M.G., 1938, Lexicon of geologic names of the United States (including Alaska): U.S. Geological Survey Bulletin, 896, pts. 1-2, 2396 p., See also Wilmarth, M.G., compiler, USGS unpub. corr. charts of Missouri (Mar. 1930); Iowa (Apr. 1930); Texas (Sept. 1930); Oklahoma (Jan. 1931, Feb. 1931); Kansas and Nebraska (Oct. 1936)


Summary:

†Dunlap limestone. For many years considered same as later but better-established name Neva limestone. According to Condra (Nebraska Geol. Survey Paper, no. 1, 1933, p. 8) it includes more than true Neva limestone and is = his Grenola formation. See under Grenola formation and Neva limestone.

Source: US geologic names lexicon (USGS Bull. 896, p. 643).


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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