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Drill Hole Lithology Summary <br />Drill Hole Easting No rthing Collar Total Depth To wnship Range Section File <br />C-04-20 <br />1,3 <br />350 928 2 <br />7,46 8 57.00 <br />T04N R94W <br />35 <br />5A <br />Adjusted Depths <br />From <br />To <br />Seam <br />Thickness <br />Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />584.40 <br />584.55 <br />GB <br />0.15 <br />carbonaceous mudston <br />dark <br />grey /bro <br />584.55 <br />587.15 <br />GB <br />2.60 <br />bright <br />coal <br />black <br />587.15 <br />587.65 <br />GB <br />0.50 <br />rashy coal <br />587.65 <br />589.33 <br />1.68 <br />carbonaceous mudston <br />dark <br />grey /bro <br />589.33 <br />592.59 <br />3.26 <br />mudstone <br />dark <br />grey <br />592.59 <br />599.93 <br />7.34 <br />mudstone /siltstone <br />medium <br />grey <br />599.93 <br />603.45 <br />3.52 <br />mudstone <br />dark <br />grey <br />603.45 <br />605.70 <br />GC <br />2.25 <br />bright <br />coal <br />black <br />605.70 <br />607.53 <br />1.83 <br />carbonaceous <br />mudstone <br />dark <br />grey <br />607.53 <br />614.43 <br />6.90 <br />interlaminated <br />mudstone /siltstone <br />light <br />grey <br />614.43 <br />622.60 <br />SH2 <br />8.17 <br />sandstone <br />light <br />grey <br />622.60 <br />622.80 <br />SH2 <br />0.20 <br />sandstone <br />medium <br />grey <br />622.80 <br />632.64 <br />SH2 <br />9.84 <br />sandstone <br />light <br />grey <br />632.64 <br />634.32 <br />1.67 <br />interlaminated <br />siltstone /sandstone <br />dark <br />grey <br />634.32 <br />637.46 <br />3.15 <br />muddy <br />siltstone <br />medium <br />grey <br />637.46 <br />637.77 <br />H2 <br />0.30 <br />coal <br />black <br />• <br />637.77 <br />639.04 <br />1.27 <br />carbonaceous mudston <br />dark <br />grey <br />639.04 <br />640.10 <br />1.07 <br />silty <br />mudstone <br />medium <br />grey <br />640.10 <br />641.12 <br />1.01 <br />carbonaceous <br />mudstone <br />dark <br />grey <br />641.12 <br />648.88 <br />7.76 <br />mudstone <br />medium <br />grey <br />648.88 <br />649.34 <br />H4 <br />0.46 <br />coal <br />black <br />649.34 <br />650.96 <br />1.62 <br />coaly laminated <br />mudstone <br />medium <br />grey <br />650.96 <br />651.52 <br />0.56 <br />siltstone <br />medium <br />grey <br />651.52 <br />652.53 <br />1.01 <br />sandstone <br />medium <br />grey <br />652.53 <br />652.74 <br />0.20 <br />sandstone <br />medium <br />grey <br />652.74 <br />653.50 <br />0.76 <br />interlaminated <br />siltstone /sandstone <br />medium <br />grey <br />653.50 <br />654.31 <br />0.81 <br />carbonaceous mudston <br />dark <br />grey /bro <br />654.31 <br />654.61 <br />0.30 <br />bone <br />black <br />654.61 <br />655.38 <br />0.76 <br />carbonaceous mudston <br />dark <br />grey /bro <br />655.38 <br />655.88 <br />H6 <br />0.51 <br />coal <br />black <br />655.88 <br />658.67 <br />2.79 <br />carbonaceous <br />mudstone <br />dark <br />grey <br />658.67 <br />663.55 <br />4.87 <br />interlaminated <br />mudstone /siltstone <br />medium <br />grey <br />663.55 <br />665.68 <br />2.13 <br />interlaminated <br />mudstone /sandstone <br />medium <br />grey <br />665.68 <br />667.30 <br />1.62 <br />interlaminated <br />siltstone / mudstone <br />medium <br />grey <br />667.30 <br />667.60 <br />H8 <br />0.30 <br />bright <br />coal <br />black <br />667.60 <br />669.85 <br />H8 <br />2.25 <br />bright <br />coal <br />black <br />669.85 <br />670.30 <br />H8 <br />0.45 <br />rashy coal <br />670.30 <br />672.58 <br />2.28 <br />carbonaceous mudston <br />dark <br />grey /bro <br />Rio Tinto Energy America - Colowyo Mine <br />Page <br />253 of 1194 <br />