TY - BOOK AU - Johnson, W. Hilton CN - QE581 .D46 CN - QE581 CY - Champaign, Ill. : DA - [1985]. ID - 103724 KW - Sedimentation and deposition KW - Geology, Stratigraphic N1 - "Nineteenth annual meeting, North-Central Section of the Geological Society of America, Northern Illinois University, DeKalb, Illinois, April 25-27, 1985." -- Cover. PB - Illinois State Geological Survey, PP - Champaign, Ill. : PY - [1985]. T1 - Depositional environments and correlation problems of the Wedron Formation (Wisconsin) in northeastern Illinois / TI - Depositional environments and correlation problems of the Wedron Formation (Wisconsin) in northeastern Illinois / ER -