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Crelling, 1981, Effects of overbank deposi- tion on the quality and maceral composition of the Herrin (No. 6) Coal (Pennsylvanian)of southern Illinois: International Journal of Coal Geology, v. 1, p. 195-212.Kravits, C. M.; Crelling, J. C. Effects of overbank deposition on the ...
Relationship between the clay fabric of roof shales and roof collapse in mines of the Herrin coal, Southern Illinois : Bodus, T M Rock Mechanics as a Guide for Efficinet Utilization of Natural Resources: Proc 30th U.S. Symposium, Morgantown, 19–22 June 1989 P605–612. Publ Rotterdam: A...