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From To Seam Thickness Lithologic Qualifiers <br />interbedded <br />sandy <br />Lithology Type Shade Color <br />mudstone /siltstone <br />246.20 <br />248.00 <br />sandstone <br />1.80 <br />grey <br />mudstone <br />248.00 <br />254.60 <br />sandstone <br />6.60 <br />silty <br />mudstone <br />254.60 <br />260.60 <br />coal <br />6.00 <br />black <br />coal <br />260.60 <br />262.00 <br />carbonaceous mudston <br />1.40 <br />mudstone <br />262.00 <br />266.00 <br />siderite <br />4.00 <br />brown <br />mudstone <br />266.00 <br />269.50 <br />F5 <br />3.50 <br />coal <br />269.50 <br />273.55 <br />F6 <br />4.05 <br />grey <br />mudstone <br />273.55 <br />275.20 <br />siderite <br />1.65 <br />siltstone <br />275.20 <br />279.45 <br />mudstone <br />4.25 <br />grey <br />carbonaceous mudston <br />279.45 <br />280.85 <br />coal <br />1.40 <br />carbonaceous mudston <br />280.85 <br />282.05 <br />mudstone <br />1.20 <br />grey <br />mudstone <br />282.05 <br />283.25 <br />mudstone /siltstone <br />1.20 <br />siltstone /mudstone <br />283.25 <br />284.80 <br />F7 <br />1.55 <br />grey <br />siltstone /mudstone <br />284.80 <br />286.95 <br />mudstone /siltstone <br />2.15 <br />coal <br />286.95 <br />288.15 <br />coal <br />1.20 <br />black <br />carbonaceous mudston <br />288.15 <br />288.80 <br />coal <br />0.65 <br />black <br />• <br />288.80 <br />289.40 <br />coal <br />0.60 <br />black <br />carbonaceous mudston <br />289.40 <br />294.45 <br />mudstone <br />5.05 <br />grey <br />carbonaceous mudston <br />294.45 <br />298.50 <br />coal <br />4.05 <br />black <br />298.50 <br />300.10 <br />F9 <br />1.60 <br />300.10 <br />301.20 <br />1.10 <br />301.20 <br />309.60 <br />8.40 <br />309.60 <br />312.10 <br />2.50 <br />312.10 <br />316.40 <br />4.30 <br />316.40 <br />344.50 <br />28.10 <br />sandy <br />344.50 <br />353.50 <br />9.00 <br />interbedded <br />353.50 <br />374.40 <br />20.90 <br />interbedded <br />374.40 <br />404.90 <br />30.50 <br />404.90 <br />410.30 <br />FA <br />5.40 <br />410.30 <br />420.25 <br />FB <br />9.95 <br />420.25 <br />421.45 <br />1.20 <br />421.45 <br />429.60 <br />G7 <br />8.15 <br />429.60 <br />437.00 <br />G8 <br />7.40 <br />437.00 <br />438.90 <br />G9 <br />1.90 <br />438.90 <br />440.50 <br />1.60 <br />440.50 <br />445.05 <br />4.55 <br />445.05 <br />445.55 <br />0.50 <br />• <br />445.55 <br />448.85 <br />GA <br />3.30 <br />interbedded <br />sandy <br />Lithology Type Shade Color <br />mudstone /siltstone <br />sandstone <br />medium <br />grey <br />mudstone <br />dark <br />grey <br />sandstone <br />light <br />grey <br />mudstone <br />dark <br />grey <br />coal <br />black <br />coal <br />carbonaceous mudston <br />mudstone <br />dark <br />grey <br />siderite <br />light <br />brown <br />mudstone <br />dark <br />grey <br />carbonaceous mudston <br />coal <br />black <br />carbonaceous mudston <br />dark <br />grey <br />mudstone <br />siderite <br />siltstone <br />mudstone <br />dark <br />grey <br />carbonaceous mudston <br />coal <br />carbonaceous mudston <br />mudstone <br />dark <br />grey <br />mudstone <br />light <br />grey <br />mudstone /siltstone <br />siltstone /mudstone <br />dark <br />grey <br />sandstone /siltstone <br />medium <br />grey <br />siltstone /mudstone <br />dark <br />grey <br />mudstone /siltstone <br />coal <br />black <br />coal <br />black <br />carbonaceous mudston <br />coal <br />black <br />coal <br />black <br />coal <br />black <br />carbonaceous mudston <br />mudstone <br />dark <br />grey <br />carbonaceous mudston <br />coal <br />black <br />Rio Tinto Energy America - Colowyo Mine Page 513 of 1194 <br />