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 n340
Nucla Mine, Montrose County, Colorado
Date Drilled: 11/6/73
Depth Thickness
(Feet) Strata (Feet)
0 Sandstone 3.8
3.8 Shale 1.5
5.3 Dark shale 2.0
7.3 Soft Coal #1 (U. Dakota) 1.2
8.5 Dark shale 0.5
9.0 Shale 0.8
9.8 Hard sandstone rock 5.2
15.0 Shale 1.5
16.5 Dark shale 1.2
17.7 Coal 0.5
18.2 Shale 0.5
18.7 Coal 1.0
19.7 Shale #2 (L. Dakota) 0.2
19.9 Coal 5.0
24.9 Coal 0.4
25.3 Sandstone 4.1
29.4 Shale 3.6
33.0 Hard sandstone 5.4
38.4 Shale 1.9
40.3 Sandstone 9.7
50.0 Dark shale 2.4
52.4 Coal 2.1
54.5 Shale 2.2
56.7 Wet coal #3 (Nucla) 0.5
57.2 Shale 2.5
59.7 Coal 1.6
61.3 Shale & sandstone 5.3
66.6 Shale - dry 10.4
77.0 Iiard shale and shale 3.0
80.0 Shale 2.0
6-1 -21