1988-04-11_PERMIT FILE - C1981008A ‎(6)‎

• Permit No: C1981008A
• IBM Index Class Name: PERMIT FILE
• Doc Date: 4/11/1988
• Doc Name: Lithologic Descriptions of Core and Bore Holes
• Section_Exhibit Name: Tab 6 Exhibit 4-1
• Media Type: D
• Archive: Yes

Drill Hole #GW-Nl
Nucla Mine, Montrose County, Colorado
Date Drilled: 3/22/77
Depth Thickness
(Feet) Strata (Feet)
0 Brown clay 2.8
2.8 Hard brown sand rock 2.0
4.8 Gray brown shale 2.0
6.8 Gray shale 2.0
8.8 Gray sandstone 1.0
9.8 Gray shale 1.8
11.6 Smut - soft coal #1 (U. Dakota) 2.0
13.6 Dark shale 0.5
14.1 Gray shale and sandstone 1.2
15.3 Brown sand rock 3.0
18.3 Gray shale 2.4
20.7 Coal 0.4
21.1 Shale 0.5
21.6 Coal #2 (L. Dakota) 0.8
22.4 Shale 0.3
22.7 Coal 5.2
27.9 Gray shale 1.0
28.9 Shale and sandstone 0.5
29.4 Gray sandstone 4.4
33.8 Sandstone and shale 0.7
34.5 Gray shale 5.5
40.0 Sandstone and shale 2.0
42.0 Gray shale 4.0
46.0 Shale and sandstone 1.0
47.0 Brown sandstone - damp 3.0
50.0 Hard sandstone 6.0
56.0 Sandstone and shale 2.0
58.0 TOTAL DEPTH
6-1-42