University of Illinois Urbana-Champaign

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Showing 3391–3420 of 4,983 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 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

Thumbnail for The expeditions of John Charles Frémont. Volume 1: Travels from 1838 to 1844
The expeditions of John Charles Frémont. Volume 1: Travels from 1838 to 1844
Frémont, John Charles; Jackson, Donald Dean; Spence, Mary Lee