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Doc Date:1211112001 III III I IIIIII'll'll ~ ~ ~NU ~ OS~ C ~f SCE( 1:~~ i d~~S
<br />Geologic Description for Drill Hole 873E ~~ ~ ~
<br />Nucla Mina, Montrose Count;, Colorado
<br />Hole Number: 873E Associated +lells: Gn'-.VG3(bli'10023)
<br />Date Drilled: 4/20/8e Location: T47N,R16vJ, fIE;,Nt}
<br />Drilled 8y: Alan Chiles Section 36
<br />Logyed 6y: Gary Wendt Coordinates: 604,735' fJ
<br />1,117,074' E
<br />Elevation: 5745'
<br />Depth Increment Description of Strata
<br />(feet)
<br />0.0- 1.0 SANDSTONE, brown to light grayish brown, sliyhtly
<br />hard to hard, VE
<br />1.0- 2.0 SHALE, gray, slightly hard, 5-10 percent liyht
<br /> grayish brown sandsione, VE/ME
<br />2,0- 3.0 SHALE, gray to dark gray, slightly hard, fVE
<br />3.0- 4.0 SHALE, dark gray, slightly hard, NE
<br />• 4.0- 5.0 SHALE, very dark gray to black, carbbnaceous and
<br /> soft black COAL, encountered coal at 4.ti 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 tc
<br /> hard, NE
<br />10.0-13.0 SANOSTONE, brown, hard to very hard, encountered
<br />dark gray slightly hard shale at 12.9, NE
<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, NE
<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 />•
<br />6-1-50
<br />Revised 11/01/86
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