- Usage in publication:
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- Dickeyville Bentonite Bed
- Modifications:
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- Original reference
- Dominant lithology:
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- Bentonite
- AAPG geologic province:
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- Wisconsin arch
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 ([ ]).