National Geologic Map Database
General Information
- Title: K-bentonites of the Ordovician Decorah Subgroup, upper Mississippi Valley; correlation by chemical fingerprinting
- Author(s): Kolata, D.R., Frost, J.K., and Huff, W.R.
- Publishing Organization: Illinois State Geological Survey
- Series and Number: Circular 537
- Publication Date: 1986
- Map Scale: 1:4,168,423
- Cross Section: Yes
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Geologic units referred to in Geolex
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