The Dwight mineralogical zone of the Yorkville Till Member, northeastern Illinois
By: Myrna M. Killey
Contributors: Illinois State Geological Survey
Series: Circular / Illinois State Geological Survey -- 526; Circular (Illinois State Geological Survey) -- 526.
Publisher: Illinois State Geological Survey
Published: 1982
Place of publication: Champaign, IL
Language: eng
Number of pages: 25
Subjects: Geology
Notes: Includes bibliographical references (p. 21).