This paper explores the cost attributed to mining of coal under adverse geologic conditions, in order to derive the costs that the geologic conditions generate. Both surface and underground models will be developed for ideal mining conditions. The two models will represent a reference point to which all costs are related. The underground model will consider such factors as roof and floor conditions, the effect of faults, and split coal. The surface model will include the effects of total overburden, hydrogeology, total thickness, and structure. These items of geologic information will be compared with geology of ideal mining conditions to determine the cost differential resulting from adverse conditions.

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