Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL001/97 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -21.488578 , 25.516931 |
Location: Orapa |
Start Drill: 2005-06-03 |
End Drill: 2005-06-06 |
Borehole Type: Exploration |
Drilling Method: Percussion & Core |
Sample Type: Core & Chips |
Depth of Surface Casing: N/A |
Azimuth: Degrees |
Hole Inclination: -90 Degrees |
Collar Elevation: 1015 Metres |
Borehole Water Strike: 133 Metres |
End of Hole (Depth): 159 Metres |
Hole Diameter: 165 Millimetres |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 1 | Orange to yellowish loose fine weathered Sand |
2. | 1 | 3 | Yellowish brown loose weathered Sand |
3. | 3 | 6 | Light brown silcretised Sandstone. |
4. | 6 | 12 | Reddish brown calcretised basalt with a lot of silcetise. |
5. | 12 | 15 | Reddish brown weathered basalt with about 20% silcretised calcrete. |
6. | 15 | 20 | Reddish brown fresh and competent basalt. |
7. | 20 | 23 | Reddish brown fresh and competent basalt with about 5% silcretised calcite. |
8. | 23 | 29 | Reddish brown fresh and competent basalt. |
9. | 29 | 30 | Brownish red fresh amygdaloidal basalt. |
10. | 30 | 34 | Brownish red fresh and competent basalt. |
11. | 34 | 38 | Greenish brown fresh basalt. |
12. | 38 | 39 | Greenish brown fresh basalt with about 20% reddish brown fresh basalt. |
13. | 39 | 45 | Greenish brown fresh and competent basalt. |
14. | 45 | 47 | Dark brown fresh amygdaloidal basalt. |
15. | 47 | 51 | Brownish green fresh and competent basalt. |
16. | 51 | 53 | Brownish green fresh and competent amygdaloidal basalt. |
17. | 53 | 58 | Brownish green fresh and competent basalt with about 10% Silcrete. |
18. | 58 | 59 | Greenish brown fresh amygdaloidal basalt with 20% Silcrete. |
19. | 59 | 64 | Brownish green fresh basalt. |
20. | 64 | 66 | Dark brown amygdaloidal basalt. |
21. | 66 | 70 | Greenish brown fresh basalt. |
22. | 70 | 71 | Dark brown fresh amygdaloidal basalt. |
23. | 71 | 83 | Brownish green fresh basalt. |
24. | 83 | 85 | Reddish brown amygdaloidal basalt with about 20% calcite. |
25. | 85 | 86 | Reddish brown amygdaloidal basalt. |
26. | 86 | 90 | Greenish brown fresh and competent amygdaloidal basalt. |
27. | 90 | 95 | Greyish green fresh and competent basalt. |
28. | 95 | 96 | Greyish green fresh amygdaloidal basalt. |
29. | 96 | 97 | Greenish grey fresh basalt. |
30. | 97 | 98 | Greenish grey fresh basalt with about 20% yellowish orange Sandstone. |
31. | 98 | 103 | Greenish brown fresh basalt with about 10% amygdales. |
32. | 103 | 104 | Dark brown fresh amygdaloidal basalt. |
33. | 104 | 114 | Greenish brown fresh basalt. |
34. | 114 | 126 | Greyish green fresh and competent basalt with pyrite grains. |
35. | 126 | 128 | Greyish green fresh and competent basalt with about 10% reddish brown basalt. |
36. | 128 | 129 | Greyish green ferricretised basalt. |
37. | 129 | 131 | Greyish green fresh and competent basalt with about 30% brownish green ferricretised basalt. |
38. | 131 | 133 | Reddish brown Sandstone with about greyish green weathered basalt. |
39. | 133 | 136 | Dark orange fine grained Sandstone. |
40. | 136 | 138 | Brownish orange fine grained Sandstone. |
41. | 138 | 151 | Yellowish orange fine grained unconsolidated Sandstone. |
42. | 151 | 159 | Light orange fine grained uncosolidated Sandstone. |
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