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• Because the stratigraphy within the permit area is so highly <br />interbedded and individual litho logic units so lenticular, it is <br />necessary to combine many of these units together in order to <br />better visualize lateral continuity. A generalized statement of <br />the stratigraphy in the area would be to say that the sediments <br />overlying the Sudduth Coal consist of two units. The lower unit <br />immediately above the coal consists of interbedded sandstone, sandy <br />siltstones and mudstones, whereas the upper unit is predominately <br />"sand free", consisting of highly interbedded shales, mudstones <br />and siltstones. <br />As previously stated, the present permit area (Pit 1) lies <br />on the eastern flank of the McCallum Anticline near the nose. The <br />Sudduth Coal Seam subcrops around the nose of the anticline being <br />covered in most places by several feet of unconsolidated quarternary <br />deposits. The coal seam changes strike as it curves around the nose <br />of the anticline to the south, varying from about N20°E at the <br />• north boundary of the permit area to about NSO°E at the southwest <br />boundary. The coal dips to the southeast and varies from a maximum <br />of 35° at the southern limit of the original pit to a minimum of <br />24° near the southwest boundary of Federal Lease Co. C-27931. <br />Exhibit C-SA is a structure map on top of the Sudduth Coal which <br />illustrates the subcrop of the seam as well as the strike and dip <br />of coal through the present permit area. <br />A system of at lease three major faults occur in the middle <br />of Federal Lease No. C-27931. These faults are probably the result <br />of tension associated with the McCallum Anticline fold. The faults <br />strike approximately N45°W and have displacements of from 10 feet <br />to well over 100 feet. This fault system and the rapidly thinning <br />coal thickness within the faulted area form the southern terminus <br />of Pit 1. <br /> <br />-10- <br />