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Page 3 of 6 <br /> Project: Oxbow Mining Hole: EC-10 <br /> <br />• From To Thick. Description <br /> <br /> 415.80 417.00 1.20 Claystone: white to light brown-gray, weak <br /> 417.00 417.80 0.80 Shale: light yellow-brown <br /> 417.80 418.40 0.60 Limestone: light gray, shaley, fractured <br /> 418.40 459.70 41.30 Sandstone: light gray to red-gray, fine grained, well <br /> sorted, trace burned <br /> 459.70 461.00 1.30 Shale: tan, weak, burned <br /> 461.00 461.20 0.20 Claystone: white, very soft,"ash" <br /> 461.20 465.00 3.80 Sandstone: light brown ray, very fine grained <br /> Unstable hole conditions, cemented hole from 270' - 465' <br /> 465.00 470.00 5.00 Shale: red to light red, weak, fractured, burned <br /> Unstable hole conditons, cemented hole from 435' - 470' <br /> 470.00 472.50 2.50 Siltstone: red, fractured, burned <br /> 472.50 474.00 1.50 Burned Coal: (Lost Core) <br /> 474.00 507.90 33.90 Sandstone: red, very fine grained, well sorted, worsens <br /> down to fine grained, burned <br /> 507.90 513.70 5.80 Interbedded Shale/Sandstone: yellow-brown to purple, <br /> very fine grained, fractured, burned <br /> 513.70 515.00 1.30 Claystone: yellow-brown, weak, very soft, burned <br /> 515.00 519.10 4.10 Sandstone: red-gray, fine grained, well sorted, burned <br /> 519.10 526.90 7.80 Interbedded Shale/Sandstone: red-brown to red-gray, <br /> weak, fractured, burned <br /> Unstable hole wnditions, cemented hole from 480' - 520' <br /> 526.90 527.50 0.60 Burned Coal: black with red streaks <br /> 527.50 528.50 1.00 Shale: black to dark gray, weak, burned <br /> 528.50 530.00 1.50 Burned Coal: (Lost Core) <br />r~ <br />~J <br />