University of Illinois Urbana-Champaign

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Showing 481–510 of 1,131 items
Thumbnail for Geochemical and petrographic analysis of the Sparks Hill Diatreme and its relationship to the Illinois-Kentucky fluorspar district
Geochemical and petrographic analysis of the Sparks Hill Diatreme and its relationship to the Illinois-Kentucky fluorspar district
Denny, F. Brett; Maria, Anton H.; Mulvaney-Norris, Joseph L.; Guillemette, Renald N.; Cahill, Richard A.; Fifarek, Richard H.; Freiburg, Jared T.; Anderson, Warren, H.

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

Thumbnail for Prairie Parklands area assessment
Prairie Parklands area assessment
Illinois Department of Natural Resources. Office of Scientific Research and Analysis

Thumbnail for Lower Des Plaines River area assessment
Lower Des Plaines River area assessment
Submitter: Steven Mccauley

Thumbnail for Vermilion River area assessment
Vermilion River area assessment
Illinois Department of Natural Resources