- Usage in publication:
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- Du Bois limestone bed
- Modifications:
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- Original reference
- Dominant lithology:
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- Limestone
- AAPG geologic province:
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- Forest City basin
Summary:
Pg. 42, 52, 53. Du Bois limestone bed of Topeka limestone member of Shawnee formation. One or two dark blue, dense, fossiliferous limestones forming large flat blocks. Thickness 2 feet-10 inches near Du Bois, Nebraska, 1 foot-1 inch in Kansas and Missouri. Underlies Holt shale and overlies Turner Creek shale, all included in Topeka limestone. Age is Late Pennsylvanian (Missouri age). Report includes cross sections, measured sections, geologic maps, stratigraphic tables.
Named from exposures on Turner Creek southeast of Du Bois, NE.
[This is definition followed by R.C. Moore and G.E. Condra in their Oct. 1932 revised classification chart of Pennsylvanian rocks of Kansas and Nebraska and by R.C. Moore in his 1936 classification (Kansas Geol. Survey Bull., no. 22).]
Source: US geologic names lexicon (USGS Bull. 896, p. 636); GNC KS-NE Pennsylvanian Corr. Chart, sheet 1, Oct. 1936; supplemental information from GNU records (USGS DDS-6; Denver GNULEX).
- Usage in publication:
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- Du Bois limestone member*
- Modifications:
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- Revised
Summary:
Pg. 2035 (fig. 5); 1949, Kansas Geol. Survey Bull., no. 83, p. 126 (fig. 22), 164; F.C. Greene and W.V. Searight, 1949, Missouri Geol. Survey and Water Res. Rpt. Inv., no. 11, p. 18. Du Bois limestone member of Topeka formation of Shawnee group. Underlies Holt shale member; overlies Turner Creek shale member. Age is Late Pennsylvanian (Virgilian). This is classification agreed upon by State Geological Surveys of Iowa, Kansas, Missouri, Nebraska, and Oklahoma, May 1947.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1168).
- Usage in publication:
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- Du Bois limestone member*
- Modifications:
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- Principal reference
Summary:
Pg. 21. Du Bois limestone member of Topeka formation of Shawnee group. Age is Late Pennsylvanian (Virgilian). Type locality stated.
Type locality: about 4 mi southeast of Du Bois, Pawnee Co., northeastern NE. Not definitely identified south of Topeka, KS.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1168).
- Usage in publication:
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- Du Bois limestone member*
- Modifications:
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- Areal extent
Summary:
Pg. 15-16, fig. 5. Du Bois limestone member of Topeka limestone. Commonly single bluish-gray bed; locally divided into two limestone beds separated by shale; fossiliferous. Thickness seldom more than 1 foot; lenses out in some localities. Underlies Holt shale member; overlies Turner Creek shale member. Age is Late Pennsylvanian (Virgilian).
Source: US geologic names lexicon (USGS Bull. 1200, p. 1168).
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 ([ ]).