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 4GW-N6
Nucla Mine, Montrose County, Colorado
Date Drilled: 4/1/77
Depth Thickness
(Feet) Strata (Feet) Formation
0 Boulders and gravel 3.5
3.5 Shale 1.5
5.0 Hard rock 3.0
8.0 Sandstone and yellow clay 1.0
9.0 Hard rock 2.0
11.0 Sandstone - soft 2.4
13.4 Hard rock 0.4
13.8 Sandstone and shale streaks 4.2
18.0 Hard rock - boulder - water 0.8
18.8 Shale 18.7
37.5 Sandstone - hard 2.1
39.6 Shale 8.4
48.0 Shale and sandstone 1.0
49.0 Hard sandstone 2.0
51.0 Gray shale 10.5
61.5 Hard sandstone 11.7
73.2 Gray shale and sandstone streaks 6.6
79.8 Hard sandstone 0.7
80.5 Sandstone and shale 7.8
88.3 Dark shale ? 1.3
89.6 Coal #1 (U. Dakota) 2.0
91.6 Hard sandstone 2.9
94.5 Dark shale 3.5
98.0 Coal ? #2 (L. Dakota) 6.4
104.4 Shale and sandstone 1.0
105.4 Hard sandstone and shale streaks 3.0
108.4 Coal ? 1.2
109.6 Sandstone and shale streaks 5.4
115.0 Hard shale 3.7
118.7 Shale and hard streaks 6.9
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