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• Drill Hole Lithology Summary <br />Drill Hole Easting Northing Collar To D epth Township Range Section File <br />C -04 -26 1,328,423.80 346, 7,539.04 785 T03N R94W 2 5A <br />.�,,. ._ �.._.. .�.. y <br />Adjusted Depths <br />From To Seam Thickness Lithologic Qualifiers Lithology Type Shade Color <br />Rio Tinto Energy America - Colowyo Mine Page 314 of 1194 <br />275.60 <br />278.99 <br />3.39 dull <br />carbonaceous mudston <br />black <br />278.99 <br />284.93 <br />5.94 interbedded <br />siltstone <br />medium <br />grey <br />284.93 <br />287.10 <br />2.17 interbedded <br />siltstone <br />medium <br />grey <br />287.10 <br />291.00 <br />GA <br />3.90 bright <br />pyritic <br />coal <br />black <br />291.00 <br />291.50 <br />GA <br />0.50 <br />rashy coal <br />291.50 <br />296.00 <br />4.50 dull <br />carbonaceous <br />siltstone <br />black <br />296.00 <br />297.10 <br />1.10 <br />carbonaceous mudston <br />297.10 <br />304.00 <br />GB <br />6.90 dull <br />coal <br />black <br />304.00 <br />307.40 <br />GB <br />3.40 dull <br />coal <br />black <br />307.40 <br />313.31 <br />5.91 <br />carbonaceous mudston <br />black <br />313.31 <br />313.50 <br />ZZ <br />0.18 dull <br />coal <br />black <br />313.50 <br />314.70 <br />1.20 dull <br />carbonaceous mudston <br />black <br />314.70 <br />315.20 <br />GC <br />0.50 bright <br />rashy coal <br />black <br />315.20 <br />319.40 <br />GC <br />4.20 <br />coal <br />319.40 <br />320.00 <br />GC <br />0.60 <br />rashy coal <br />320.00 <br />323.46 <br />3.46 silty <br />interbedded <br />mudstone /siltstone <br />dark <br />grey <br />• <br />323.46 <br />325.60 <br />2.14 silty <br />interbedded <br />mudstone /siltstone <br />dark <br />grey <br />325.60 <br />326.50 <br />HO <br />0.90 bright <br />coal <br />black <br />326.50 <br />327.49 <br />0.99 dull <br />carbonaceous mudston <br />black <br />327.49 <br />329.29 <br />1.79 <br />siltstone <br />329.29 <br />329.98 <br />0.70 <br />carbonaceous mudston <br />329.98 <br />331.28 <br />1.29 dull <br />mudstone <br />black <br />331.28 <br />332.67 <br />1.39 dull <br />silty <br />carbonaceous mudston <br />black <br />332.67 <br />333.46 <br />0.80 <br />mudstone <br />dark <br />grey <br />333.46 <br />334.86 <br />1.39 <br />mudstone <br />dark <br />grey <br />334.86 <br />343.41 <br />8.56 laminated <br />muddy <br />siltstone <br />dark <br />grey <br />343.41 <br />343.91 <br />0.50 laminated <br />muddy <br />siltstone <br />dark <br />grey <br />343.91 <br />350.28 <br />6.37 laminated <br />siltstone /sandstone <br />dark <br />grey <br />350.28 <br />353.36 <br />SH2 <br />3.08 <br />sandstone <br />light <br />grey <br />353.36 <br />358.54 <br />SH2 <br />5.17 <br />sandstone <br />light <br />grey <br />358.54 <br />363.31 <br />4.78 ripple- bedded <br />siltstone /sandstone <br />dark <br />grey <br />363.31 <br />367.59 <br />4.28 dull <br />carbonaceous mudston <br />black <br />367.59 <br />371.17 <br />3.58 <br />siltstone <br />371.17 <br />373.26 <br />2.09 <br />carbonaceous mudston <br />373.26 <br />373.76 <br />0.50 <br />carbonaceous mudston <br />373.76 <br />378.33 <br />4.58 dull <br />laminated <br />siltstone /sandstone <br />black <br />378.33 <br />383.21 <br />4.88 ripple- bedded <br />interlaminated <br />sandstone <br />light <br />grey <br />• <br />383.21 <br />384.30 <br />1.09 <br />sandstone <br />Rio Tinto Energy America - Colowyo Mine Page 314 of 1194 <br />