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I-9 • UPPER WHEELER SEAM COAL DEPTH, FT. GEOTECHNICAL DESCRIPTION 1529.6-1553.8 COAL: Upper Wheeler Seam; fairly clean; thinly banded; fairly vitreous; trace resin and calcite; broken intervals: 1534.6' to 1535.8', 1538.0' to 1538.5'(?), 1543.5' to 1544.1' and minor others; bone interval from 1552.7' to 1553.0' and questionable to lower contact; hardness 6; strong cleat set oriented about 20° to core axis along which coal divides easily; lost intervals from 1533.4' to 1534.6', 1535.8' to 1538.0', 1544.1' to 1544.8' and from 1553.0' to 1553.8'; competent; estimated compressive strength 20 MPs; recovery 80X; RQD 29X; IA~134; ID~140; I~~1.0. FLOOR UPPER WHEELER SEAMlR00F LOWER WHEELER SEAM DEPTH, FT. GEOTECHNICAL DESCRIPTION 1553.8-1562.8 CLAYSTONE: Medium gray; silty; local sandy lenses; fairly . homogeneous appearance; abundant scattered carbonaceous or coaly debris; solid interval; well indurated; hardness 6; no observed jointing; fairly smooth bedding separations closely to moderately spaced(a~65°±05°); trace slickensiding observed along bedding planes; competent; estimated compres- sive strength 55 MPs; good bearing capacity; good cavability; should stand well in immediate roof with usual protection; recovery 100X; RQD 86X(?); IA~564; ID~491; I~~1.1. 1562.8-1563.7 CARBONACEOUS CLAYSTONE: Dark gray; friable; coaly; solid interval; well indurated; hardness 5-b; smooth separations closely to very closely spaced(a~b0°-b5°); marginally competent; minor scattered low eagle slickensides; estimated compressive strength 30 MPs; good cavability; may cave with coal if not protected; recovery 100X; RQD OX(?); IA~387; ID~205; IAp~~1.9. LOWER WHEELER SEAM COAL DEPTH, FT. GEOTECHNICAL DESCRIPTION 1563.7-1585.8 COAL: Lover Wheeler Seam; clean; thinly banded; generally SEEGMILLER INTERNATIONAL