University of Illinois Urbana-Champaign

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Showing 1–30 of 106 items
Thumbnail for Deep-minable coal resources of Illinois
Deep-minable coal resources of Illinois
Treworgy, Colin G.; Bargh, Margaret H.

Thumbnail for Reserves and resources of surface-minable coal in Illinois
Reserves and resources of surface-minable coal in Illinois
Treworgy, Colin G.; Bengal, Lawrence E.; Dingwell, Amy G.

Thumbnail for Coal : Illinois' black treasure
Coal : Illinois' black treasure
Treworgy, Colin G.; Vaiden, Robert C.

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 Availability of the Springfield Coal for mining in Illinois : map summary of Illinois minerals 118
Availability of the Springfield Coal for mining in Illinois : map summary of Illinois minerals 118
Treworgy, Colin G.; Korose, Christopher P.; Chenoweth, Cheri A.; North, Daniel L.

Thumbnail for Availability of the Herrin coal for mining in Illinois
Availability of the Herrin coal for mining in Illinois
Treworgy, Colin G.; Korose, Christopher P.; Wiscombe, Christine L.

Thumbnail for Surface coal mine : major coals of the Carbondale Formation
Surface coal mine : major coals of the Carbondale Formation
Krausse, Hans Friedrich; Cobb, James C.; Treworgy, Colin G.

Thumbnail for Availability of the Springfield Coal for mining in Illinois
Availability of the Springfield Coal for mining in Illinois
Treworgy, Colin G.; Korose, Christopher P.; Chenoweth, Cheri A.; North, Daniel L.

Thumbnail for Availability of coal resources in Illinois : Mt. Carmel Quadrangle, southeastern Illinois
Availability of coal resources in Illinois : Mt. Carmel Quadrangle, southeastern Illinois
Jacobson, Russell J.; Treworgy, Colin G.; Chenoweth, Cheri A.; Bargh, Margaret H.

Thumbnail for Availability of the Danville, Jamestown, Dekoven, Davis, and Seelyville coals for mining in selected areas of Illinois
Availability of the Danville, Jamestown, Dekoven, Davis, and Seelyville coals for mining in selected areas of Illinois
Korose, Christopher P.; Treworgy, Colin G.; Jacobson, Russell J.; Elrick, Scott D.

Thumbnail for Abundance and recovery of sphalerite and fine coal from mine waste in Illinois
Abundance and recovery of sphalerite and fine coal from mine waste in Illinois
Cobb, James C.; Masters, John M.; Treworgy, Colin G.; Helfinstine, Roy John

Thumbnail for The abundance of zinc and cadmium in sphalerite-bearing coals in Illinois
The abundance of zinc and cadmium in sphalerite-bearing coals in Illinois
Cobb, James C.; Steele, John D.; Treworgy, Colin G.; Ashby, Jim F.