University of Illinois Urbana-Champaign

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Showing 601–630 of 2,357 items
Thumbnail for The mica in argillaceous sediments
The mica in argillaceous sediments
Grim, Ralph E.; Bray, Roger Hammond; Bradley, William Frank

Thumbnail for Surface structure map of Shelby, Effingham and Fayette counties,
Surface structure map of Shelby, Effingham and Fayette counties,
Newton, William Albert; Weller, J. Marvin; Bell, Alfred Hannam

Thumbnail for Big Muddy River area assessment
Big Muddy River area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis; Illinois Department of Natural Resources. State Geological Survey Division