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2.04.6 (2) (a) (i) <br />A copy of this report is available at the Red Canyon #1 Mine and <br />i pzoposed #2 Mine site. The reserve calculations reflect a <br />mile radius from the Belden Hole. Refer to Drawing 2.04.6(2)(a)(i)-1 <br />and 2.04.6(2) (a) (i)-2. <br />"E" COAL SEAM <br />Stratigraphically, the "E" coal seam is approximately 130 feet above <br />the "D" coal seam. The intervening material contains siltstone, <br />claystone and a few thin sandstones, but only one other laterally <br />continuous coal marker bed which is traceable in the area. This <br />coal is approximately two feet in the thickness and is located 50 <br />feet below the "E" coal seam. As can be seen on the Isopach Map- <br />'E" Coal Seam, 2.04.6-1, the "E" coal seam ranges in thickness <br />from approximately 4.9 feet in the north to a maximum thickness <br />of approximately 7.5 feet near the center of the permit area. <br />It can be noted that because of the irregular nature of the "E' <br />coal seam, it appears to be'channelized with thinning of the "E" coal seam trending <br />northeast-sout*~st through the area currently under production. This, however, is <br />• a localized feature and will rot affect the overall mine operation in the future. <br />Although the "E" coal seam varies in thickness throughout the mine <br />area, the coal bed itself is relatively clean and free of either <br />'bone' or interbedded siltstone or clays. in only one location within <br />the present mine workings has an interbedded sandstone lenae been"' <br />observed. This lense was located approximately midway in the seam <br />and was approximatley 10 inches thick, 3 feet long and lenticular <br />in nature. Although sandier in nature, this small lense of interburden <br />would fall within a siltstone classification and does not appear <br />to be continuous in any one direction. Cleating in the "E" seam <br />consists of near vertical fracturing, the order of magnitude appears <br />to be between 8 and 45 millimeters in width, continuous throughout <br />the full thickness of the seam. The upper and lower third of the <br />seam generally appears to be cleated in a more coarse fashion <br />with the middle third cleating frequently <br />• '~ <br />REVISED May 8, 1981 53 f <br />y ~.1'.. ..L `trL~~: .. .'. ~. .. ... ....~"w~.• Mme- <br />' .y!;1' .~'.. ~. .. w A..1 ~. <br />