K-Bentonites of the Ordovician Decorah subgroup, Upper Mississippi Valley
Subtitle: correlation by chemical fingerprinting
By: Dennis R. Kolata, Joyce K. Frost, Warren D. Huff.
Contributors: Frost, Joyce K.; Huff, Warren D., 1937-
Series: Circular / Illinois State Geological Survey ;; 537; Circular (Illinois State Geological Survey) ;; 537.
Publisher: Illinois State Geological Survey
Published: 1986
Place of publication: Champaign, Ill
Language: eng
Number of pages: 30
Subjects: Bentonite -- Mississippi River Valley.; Geology, Stratigraphic -- Ordovician.
Notes: Bibliography: p. 25-30.