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Geologic Description for Drill Hole 876E
<br /> Nucla Mine, Montrose County, Colorado
<br /> Hole Number: 876E Associated 'Wells : None
<br /> Date Drilled: 4/20/86 Location: T47N,R16W, NE4 ,NE4
<br /> Drilled By: Alan Chiles Section 36
<br /> Logged By: Gary Wendt Coordinates: 605,504' h
<br /> 1,116,837' E
<br /> Elevation: 5731'
<br /> Depth Increment Description of Strata
<br /> (feet)
<br /> 0.0- 0.5 TOPSOIL, sandy clay loam, reddish brown, friable ,
<br /> many fine roots, SE/ME, 5-10 percent yellowish brown
<br /> sandstone rock fragments up to 1 foot diameter
<br /> 0.5- 2.0 SANDSTONE, light grayish brown, slightly hard to
<br /> hard, ME/SE
<br /> 2.0- 5.6 SANDSTONE, brown, hard, NE
<br /> 5.6- 7.0 SHALE, gray, slightly hard to hard, sandy shale from
<br /> 5.6-5.9, NE
<br /> 7.0- 8.8 SHALE, gray to very dark gray, slightly hard to
<br /> hard, red shale streak at 7.2-7.5, NE
<br /> 8.8- 9.4 SHALE, silty, light gray, soft and dark gray
<br /> slightly hard SHALE and 25 percent yellow sulfur
<br /> stains (Jarosite) at 8.9-9.0, coal at 8.8-8.9, NE
<br /> 9.4-14.8 COAL, Lower Dakota seam, grayish brown and yellowish
<br /> brown slightly hard shale partings at 10.25-10.35
<br /> and 10.45-10.50, NE
<br /> 14.8-16.2 SHALE, sandy grading to shaley SANDSTONE, gray SHALE
<br /> and light gray SANDSTONE, slightly hard shale and
<br /> hard sandstone, NE
<br /> 16.2-18.3 SANDSTONE, light gray, extremely hard, soft dark
<br /> grayish brown shale streaks at 17. 18-17.22,
<br /> 17.43-17.47, 17.83-17.87 and 18.18-18.22, sandstone
<br /> is light grayish brown surrounding shale streaks
<br /> (fractures) , NE
<br /> 6-1 -56
<br /> Revised 11/01/86
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