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 #1C - Overburden
Nucla Mine, Montrose County, Colorado
Date Drilled: 2/10/77
Depth Thickness
(Feet) Strata (Feet)
0 Start core grass roots 0.2
0.2 Clay and grass roots 0.3
0.5 Brown damp clay 0.5
1.0 Sandy clay and rock 1.0
2.0 Rock & gray sandstone 1.0
3.0 Gray soft sandstone 2.2
5.2 Brown sandstone 2.8
8.0 Shale & sandstone 2.0
10.0 Brown shale & sandstone 3.0
13.0 Shale (lost) 1.0
14.0 Brown shale 0.5
14.5 Brown sandstone 1.0
15.5 Brown shale 1.2
16.7 Damp shale (lost) 0.3
17.0 Shale 0.5
17.5 Hard sandstone - rock 1.5
19.0 Sandstone 1.0
20.0 Rock - sandstone 0.7
20.7 Shale (lost) 0.5
21.2 Dark gray shale 1.7
22.9 Sandstone 0.3
23.2 Shale (lost) 0.3
23.5 Shale 0.1
23.6 Sandstone 0.8
24.4 Shale 0.1
24.5 Sandstone 0.5
25.0 Damp gray shale 1.0
26.0 Shale (lost) 0.6
26.6 Gray shale 1.7
6-1 -4