|
n
<br />LJ
<br />Geologic Description for Drill Hole 873E
<br />Nucla Mine, Montrose County, Colorado
<br />Hole Number: 873E Associzted Wells: GW-,V23(Wid0023)
<br />Date Drilled: 4/20!86 'Location: T47N,R16W, NE},ftE~
<br />Drilled By: Alan Chiles Section 36
<br />Logged By: Gary Wendt Coordinates: 604,735' N
<br />1,117,074' E
<br />Elevation: 5745'
<br />Depth Increment Description of Strata
<br />(feet)
<br /> 0.0- 1.0 SANDSTOi+E, broom to light grayish brown, slightly
<br /> hard to hard, YE ,
<br /> 1.0- 2.0 SHALE, gray, slightly hard, 5-10 percent light
<br /> grayish brown sandstone, VE/i4E
<br /> 2.0- 3.0 SHALE, gray to dark gray, slightly hard, NE
<br />• 3.0- 4.0 SHALE, dark gray, slightly hard, NE
<br /> 4.0- 5.0 SHALE, very dark gray to black, carbonaceous and
<br /> soft black COAL, encountered coal at 4.6 feet, NE
<br /> 5.0- 6.8 COAL, Upper Dakota seam
<br /> 6.8- 8.0 SHALE, gray, slightly hard, light gray slightly hard
<br /> sandstone at 7.5-8.0, NE
<br /> 8.0-10.0 SANDSTONE, light brownish gray, slightly hard to
<br /> hard, NE
<br /> 10.0-13.0 SANDSTONE, brown, hard to very hard, encountered
<br /> dark gray slightly hard shale at 12.9, flE
<br /> 13.0-14.3 SHALE, gray, slightly hard to hard, NE
<br /> 14.3-14.6 SHALE, silty, yellowish brown to reddish brown,
<br /> slightly hard to hard, highly fractured from
<br /> 14.5-14..6, fiE
<br /> 14.6-16.0 SHALE, gray, slightly hard to hard, yellow 0.01 foot
<br /> powdery sulfur deposits (Jarosite) in fractures at
<br /> 0.1 foot intervals, slightly sandy and light gray at
<br /> 15.8-16.0, white to clear gypsum crystals at
<br /> 15.95-16.00, NE
<br /> c7
<br /> 6-1-5t)
<br />
<br />• Revised 11/01/86
<br /> REVISED MARCH 2006 Attachment 2.04.6-1-51
<br />
|