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- |category7=Coal |tree3=Murphysboro Coal Member3 KB (412 words) - 17:10, 27 January 2017
- |category7=Coal |tree3=Rock Island Coal Member4 KB (496 words) - 20:00, 27 January 2017
- |tree3=Creal Springs Limestone Member ...ndbook of Illinois Stratigraphy: Illinois State Geological Survey Bulletin 95, 261 p.3 KB (339 words) - 17:07, 27 January 2017
- ...22, Pennsylvanian Subsystem in Illinois: Illinois State Geological Survey, Bulletin (in press). ...his reason local formation names will be applied and the top of the Herrin coal will be used as the formation boundary.<br>21 KB (3,121 words) - 16:14, 9 February 2022
- * Allgaier, G.J., and M.E. Hopkins, 1975, Reserves of the Herrin (No. 6) Coal in the Fairfield Basin in southeastern Illinois: Illinois State Geological ...93, Origin of gray shale lithofacies (clastic wedges) in U.S. Midcontinent coal measures (Pennsylvanian): An alternate explanation: Geological Society of A42 KB (5,903 words) - 13:35, 23 August 2023