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 #594C
Nucla Mine, Montrose County, Colorado
Date Drilled: 2/18/77
Depth Thickness
(Feet) Strata (Feet)
0 Surface soil 0.5
0.5 Hard sandstone - rock 1.2
1.7 Clay and rock 2.0
3.7 Hard sandstone - rock 0.7
4.4 Brawn clay and rock 2.6
7.0 Brawn, gray clay 8.0
15.0 Shale and rock 4.0
19.0 Brown sandstone 2.0
21.0 Gray shale and sandstone 6.3
27.3 Brawn sandstone 7.7
35.0 Gray sandstone and shale 4.0
39.0 Hard gray shale 6.0
45.0 Hard gray sandstone and shale 4.0
49.0 Gray shale 5.1
54.1 Coal #1 (U. Dakota) 2.0
56.1 Shale 1.8
57.9 Hard sandstone 2.1
60.0 Dark shale 2.4
62.4 Coal 1.6
64.0 Shale #2 (L. Dakota) 0.5
64.5 Coal 5.2
69.7 Shale 0.3
70.0 TOTAL DEPTH
6-1 -35