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Map showing publication footprint
  • Usage in publication:
    • Dickeyville Bentonite Bed
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Bentonite
  • AAPG geologic province:
    • Wisconsin arch
Publication:

Willman, H.B., and Kolata, D.R., 1978, The Platteville and Galena Groups in northern Illinois: Illinois Geological Survey Circular, no. 502, __ p.


Summary:

Pg. 45. Dickeyville Bentonite Bed of Glenhaven Member of Guttenberg Formation. Present in Wisconsin and Illinois. Consists of gray bentonite clay. Thickness 0.05 m at type section; ranges 0.01 to 0.05 m. Overlies and underlies limestone or dolomite units near top of Glenhaven Member. Age is Middle Ordovician.
Type section: Dickeyville Northwest Section, quarry and roadcuts along U.S. Highway 61, 6.5 km northwest of Dickeyville, in NE/4 NE/4 SW/4 sec. 7 and S/2 NW/4 sec. 7, T. 2 N., R. 2 W., Grant Co., south-central WI.

Source: US geologic names lexicon (USGS Bull. 1564, p. 47).


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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