University of Illinois Urbana-Champaign

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Showing 2251–2280 of 7,436 items
Thumbnail for Geologic road map of Illinois : surface deposits and landscapes
Geologic road map of Illinois : surface deposits and landscapes
Grimley, David A.; Stiff, Barbara J.; Andrew, Michael J.

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Introduction
Introduction
Liu, Lewis G.

Thumbnail for Mineralogical and chemical composition of inorganic matter from marketed Illinois coals
Mineralogical and chemical composition of inorganic matter from marketed Illinois coals
Demir, Ilham; Hughes, Randall E.; DeMaris, Philip J.; Ruch, Rodney R.

Thumbnail for News from the Field
News from the Field
Submitter: Howard Ding