University of Illinois Urbana-Champaign

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Showing 1–30 of 200 items
Thumbnail for Seismicity of Illinois
Seismicity of Illinois
Heigold, Paul C.; Larson, Timothy H.

Thumbnail for Regional maps of vertical magnetic intensity in Illinois.
Regional maps of vertical magnetic intensity in Illinois.
McGinnis, Lyle David; Heigold, Paul C.

Thumbnail for Properties of chert related to its reactivity in an alkaline environment
Properties of chert related to its reactivity in an alkaline environment
Fraser, Gordon S.; Harvey, Richard David; Heigold, Paul C.

Thumbnail for Computer-calculated Lambert conformal conic projection tables for Illinois (7.5-minute intersections)
Computer-calculated Lambert conformal conic projection tables for Illinois (7.5-minute intersections)
DuMontelle, Paul B.; Heigold, Paul C.; Heidari, Manoutchehr; Swann, David H.

Thumbnail for Ground-water resources of northern Vermilion County, Illinois
Ground-water resources of northern Vermilion County, Illinois
Kempton, John P.; Ringler, Robert W.; Heigold, Paul C.; Cartwright, Keros; Poole, Vickie L.

Thumbnail for Simple Bouguer gravity anomaly map of extreme southern Illinois:  south of 38° latitude
Simple Bouguer gravity anomaly map of extreme southern Illinois: south of 38° latitude
Heigold, Paul C.; McGinnis, Lyle D.; Ervin, C. Patrick; Kucks, Robert P.