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• <br />From <br />To <br />Seam <br />Thickness Lithologic Qualifiers <br />Lithology Type <br />Shade <br />Color <br />746.50 <br />748.45 <br />KM <br />1.95 <br />tuff /tonstien <br />748.45 <br />751.50 <br />K7 <br />3.05 <br />coal <br />black <br />751.50 <br />752.10 <br />0.60 <br />carbonaceous mudston <br />752.10 <br />755.10 <br />3.00 <br />mudstone /siltstone <br />dark <br />grey <br />755.10 <br />756.00 <br />0.90 <br />carbonaceous mudston <br />756.00 <br />761.60 <br />K9 <br />5.60 <br />coal <br />black <br />761.60 <br />762.10 <br />0.50 <br />carbonaceous mudston <br />762.10 <br />767.70 <br />L3 <br />5.60 <br />coal <br />black <br />767.70 <br />768.50 <br />L5 <br />0.80 <br />boney coal <br />black <br />768.50 <br />770.30 <br />L5 <br />1.80 <br />coal <br />black <br />770.30 <br />773.25 <br />L7 <br />2.95 <br />coal <br />black <br />773.25 <br />773.75 <br />L7 <br />0.50 <br />rashy coal <br />773.75 <br />780.00 <br />6.25 <br />mudstone /siltstone <br />dark <br />grey <br />780.00 <br />795.00 <br />15.00 interbedded <br />sandstone /siltstone <br />medium <br />grey <br />795.00 <br />801.50 <br />6.50 <br />mudstone /siltstone <br />dark <br />grey <br />801.50 <br />808.40 <br />6.90 <br />sandstone /mudstone <br />medium <br />grey <br />808.40 <br />811.00 <br />M5 <br />2.60 <br />coal <br />black <br />811.00 <br />821.20 <br />10.20 <br />mudstone /siltstone <br />dark <br />grey <br />821.20 <br />824.20 <br />M7 <br />3.00 <br />coal <br />black <br />824.20 <br />828.60 <br />4.40 <br />mudstone <br />dark <br />grey <br />828.60 <br />830.60 <br />N1 <br />2.00 <br />coal <br />black <br />830.60 <br />831.20 <br />0.60 <br />carbonaceous mudston <br />black <br />831.20 <br />832.00 <br />N3 <br />0.80 <br />coal <br />black <br />832.00 <br />833.00 <br />1.00 <br />carbonaceous mudston <br />black <br />833.00 <br />836.40 <br />3.40 <br />mudstone /siltstone <br />dark <br />grey <br />836.40 <br />841.60 <br />5.20 <br />sandstone <br />light <br />grey <br />841.60 <br />845.00 <br />3.40 silty <br />mudstone <br />dark <br />grey <br />845.00 <br />849.00 <br />N5 <br />4.00 <br />coal <br />black <br />849.00 <br />857.00 <br />8.00 <br />mudstone /siltstone <br />dark <br />grey <br />857.00 <br />860.00 <br />3.00 <br />not logged <br />Rio Tinto Energy America - Colowyo Mine <br />Page 531 of 1194 <br />