University of Illinois Urbana-Champaign

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Showing 421–450 of 2,451 items
Thumbnail for Mississippian stratotypes
Mississippian stratotypes
Collinson, Charles; Baxter, James W.; Norby, R.D.; Lane, H.R.; Brenckle, Paul D.

Thumbnail for ISGS Geonews
ISGS Geonews
Illinois State Geological Survey

Thumbnail for Summary of stratigraphy shown in geologic cross-section of Illinois Basin.
Summary of stratigraphy shown in geologic cross-section of Illinois Basin.
Workman, Lewis Edwin; Swann, D.H.; Atherton, Elwood

Thumbnail for Availability of the Herrin Coal for mining in Illinois : map summary of Illinois minerals 120
Availability of the Herrin Coal for mining in Illinois : map summary of Illinois minerals 120
Treworgy, Colin G.; Korose, Christopher P.; Wiscombe, Christine L.

Thumbnail for Year in review / 2008-09
Year in review / 2008-09
University of Illinois at Urbana-Champaign. Deptartment of Geology

Thumbnail for Illinois River Bluffs Area Assessment
Illinois River Bluffs Area Assessment
Illinois Department of Natural Resources

Thumbnail for Inside Illinois : mineral resources
Inside Illinois : mineral resources
Illinois State Geological Survey