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2.04.6 (2) (a) (i) <br />GEOLOGY OF COAL SEAMS. <br />nce the permit application is for units contained in the shale <br />member above the Rollins Sandstone, further discussion will be <br />limited to these coal units. Specifically, the coal seams within <br />the shale member have been identified in alphabetical order <br />from the "A" coal seam (which lies immediately above the Rollins <br />Sandstone) upward to the "F" coal seam, which in this area is <br />approximately 300 to 350 feet stratigraphically above the Rollins <br />Sandstone. The "D" coal seam is approximately 150 feet above the <br />Rollins and is separated from the "A", "B", and "C" coal seams <br />and the Rollins sandstone by claystone, silts tone and shales, <br />effectively sealing it from any direct hydrologic communication <br />with the other units below it. <br />As can be seen from•the Electric Logs - "D" Coal Seam Map, 2.04.5-3b, <br />the "D' coal seam in this area is underlain by five to ten feet of <br />impervious claystone and shale. The "D" coal seam ranges in thickness <br />from eight to eleven feet, averaging ten feet. The coal itself, <br />enerally, is classified as sub-bituminous A to high-volatile C in rank, <br />~d is suited for power generation. A full chemical analysis of <br />the 'D" coal seam is available on Table 2.04.6(2)(a)(i)-1.. The ,,"D" <br />coal seam is the thickest continuous coal seam in the area. As can <br />be seen on the Isopach Map - "D" Coal Seam, 2.04.6-1a, the "D" coal <br />seam ranges in thickness from approximately 8.5 feet in the east to <br />a maximum thickness of approximately 10.5 feet near the center of <br />the permit area. <br />since the "A" coal seam is not presently being mined, an underground <br />inspection and description of interburden, local fracturing and cleating <br />as well as presence of stringers is not possible at this time. <br />A listing of reserves for the "D" coal seam within coal lease D-036906 <br />is on Table 2.04.6(2)(a)(i)-2. This information was obtained from a <br />report prepared for the U.S. Geological Survey dated April 20, 1981. <br />,I <br />~':' <br />REVISED May 8, 1981 52a ' <br />} <br />~~: <br />