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Cutting Description <br />Drill Hole 310134-4 <br />Page 5 of 8 <br /> interval <br />• From To <br /> 400' 405' Siltstone, gray to black; carbonaceous fragments; <br /> few coal fragments. <br /> 405' 410' Siltstone-sandstone, gray, powdery. <br /> 410' 415' Sandstone-mudstone, gray; carbonaceous fragments in <br /> mudstone. (powdery) <br /> 415' 420' Siltstone, brown to black. <br /> 420' 425' Sandstone, fine grained, gray to black; all broken <br /> up, powdery. <br /> 425' 430' Coal, good shiny luster; shale-Siltstone fragments, <br /> carbonaceous, black. <br /> 430' 435' Siltstone, gray to black. <br /> 435' 440' Siltstone, gray to black; few carbonaceous fragments; <br /> few coal fragments. <br /> 440' 450' Sandstone, fine grained, gray to brown; all broken <br /> up, powdery. <br />• <br /> 450' 455' Sandstone-Siltstone, fine grained, light gray to gray. <br /> 455' 460' Siltstone, brown to black, hard; carbonaceous frag- <br /> ments and lenses. <br />460' 465' Sandstone, fine grained, gray to brown; all broken <br />up, powdery. <br />465' 470' Sandstone-Siltstone, very fine grained, light gray <br />to gray; few coal fragments. <br />470' 480' Sandstone-Siltstone, fine grained, gray to grayish <br />brown; carbonaceous lenses and fragments in sandstone. <br />480' 485' Siltstone, brown to black; carbonaceous fragments <br />and lenses; few pyrite lenses. <br />485' 490' Siltstone, brown to black; carbonaceous fragments <br />and lenses. <br />490' 495' Siltstone-sandstone, brown; few carbonaceous frag- <br />ments and lenses. <br />495` 500' Sandstone-Siltstone, fine grained, gray to brown, <br />. good cementation (very hard). <br />