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 #346
Nucla Mine, Montrose County, Colorado
Date Drilled: 11/12/73
Depth Thickness
(Feet) Strata (Feet)
0 Clay and loose rock 5.0
5.0 Shale 12.0
17.0 Dark shale 0.5
17.5 Sand rock 1.7
19.2 Shale and sandstone 1.8
21.0 Shale 2.8
23.8 Dark shale 0.8
24.6 Coal #1 (U. Dakota) 1.7
26.3 Dark shale 0.7
27.0 Shale 1.3
28.3 Sandstone 5.0
33.3 Dark shale 2.0
35.3 Coal 0.5
35.8 Shale 0.3
36.1 Coal #2 (L. Dakota) 0.9
�7.0 Shale and coal 0.2
37.2 Coal 5.0
42.2 Shale and sandstone streaks 17.2
59.4 Hard sandstone 2.4
61.8 Dark shale 2.0
63.8 Shale 4.5
68.3 Dark shale 0.4
68.7 Coal 2.1
70.8 Shale - dark shale #3 (Nucla) 0.6
71.4 Slate 1.6
73.0 Coal 1.5
74.5 Slate 0.5
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