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1 <br />2.09.6 (2) (a) (i) <br />The lithologies within the overburden above the F seam, the <br />interval referred to as the barren member in Section 2.04.612), <br />consist of shales, siltstones, and sandstones with local thin <br />coals. Sandstones are predominantly massive and lenticular. <br />' Shale and silts tone intervals often occur as thin interbedded <br />sequences which show distorted bedding. Carbonaceous plant <br />fragments occur occasionally within all lithologies in the <br />' overburden. <br />' The stratum immediately below the C seam consists of 5 to <br />12 feet of competent shales underlain by massive sandstone. <br />' Refer to Figure 2.09.6(2)(a).Generalizec~. Stratigraphic Column <br />for a graphical representation of available data. <br />1 (ii) Maps <br />~' Refer to Figure 2.04.6(2)(a)-1, Drawings 2.04.6(2)(a)-1 and 2 <br />and to maps 2.04.6(2)(a)-3 and 2.04.6(2)(a)(i)-1, -2, and -3 <br />' for the stratigraphic column, the geologic cross sections <br />the overburden isopach, and the strike and dip. <br />' <br /> The following maps are portions of maps submitted by ARCO. The <br /> Geology b:ap, 2.04.6(2)(a)-4 the geology within and adjacent to <br /> the Bear Mine permit area. The Fracture [•lap, 2.04.6(2)(a)-5, <br /> illustrates the fractures within and adjacent to the Bear Mine <br />t permit area. The Slope Failure P]ap, 2.04.6(2)(a)-6, illustrates <br /> the slope failures and rockfalls in the area. <br /> <br /> Logs of a few of the drillholes indicated. on maps 2.04.6(2)-1. <br /> and 2.04.6(2)-2 are included. .°.e fer to the Litholoaic Map, <br /> 04.6(2)~(a)-7, and the Electric <br />2 Log D"ap, 2.n4.6(2)(a)-8. <br /> . <br />1 <br /> Y <br />' REVISED bray 15, 1981 <br />43 <br />