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 #4C - Overburden
Nucla Mine, Montrose County, Colorado
Date Drilled: 2/17/77
Depth Thickness
(Feet) Strata (Feet)
0 Start core-surface soil 0.2
0.3 Brown surface sandstone 0.6
0.9 Brown clay and rock 3.1
4.0 Brown gray shale 1.5
5.5 Shale and rock 0.5
6.0 Hard gray shale 1.0
7.0 Gray shale 1.0
8.0 Gray shale 0.5
8.5 Brown gray shale 0.5
9.0 Hard brown shale 1.0
10.0 Gray shale 1.0
11.0 Shale 1.4
12.4 Soft - coal 0.7
13.6 Soft coal #1 (U. Dakota) 1.0
14.6 Shale 1.6
16.2 Shale and sandstone 2.8
19.0 Sandstone 0.4
19.4 Shale and dark shale 0.8
20.2 Dark shale and sandstone 1.3
21.5 Dark shale 0.8
22.3 Coal 0.3
22.6 Shale 0.7
23.3 Coal 2.1
25.4 Shale and coal #2 (L.' Dakota) 0.7
26.1 Coal 2.9
29.0 Dark shale and coal 0.2
29.2 Gray shale 0.8
30.0 Hard sandstone w/shale 4.0
streaks
34.0 WITAL DEPTH
6-1 -10