Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL001/97 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -21.292513 , 25.545451 |
Location: Orapa |
Start Drill: 2005-04-16 |
End Drill: 2005-04-18 |
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: 962 Metres |
Borehole Water Strike: 66 Metres |
End of Hole (Depth): 83 Metres |
Hole Diameter: 165 Millimetres |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 5 | Cream white weathered calcrete mixed with cilcrete. |
2. | 5 | 6 | Light yellow weathered calcrete. |
3. | 6 | 9 | Dark brown weathered Basalt with about 30% collapsed calcrete. |
4. | 9 | 10 | Dark brown fresh and competent Basalt. |
5. | 10 | 12 | Dark fresh and competent Basalt with amygdales. |
6. | 12 | 14 | Dark brown weathered Basalt. |
7. | 14 | 16 | Dark brown fresh and competent Basalt. |
8. | 16 | 17 | Reddish brown fresh and competent Basalt. |
9. | 17 | 19 | Reddish brown fresh and competent Basalt 20% amygdales. |
10. | 19 | 20 | Reddish brown fresh and compeetent Basalt with about 20% amygdales. |
11. | 20 | 21 | Greenish brown fresh and competent Basalt with 10% amygdales. |
12. | 21 | 23 | Greenish brown fresh and competent Basalt with some amygdales. |
13. | 23 | 24 | Greenish grey fresh and competent Basalt. |
14. | 24 | 26 | Greenish grey fresh and competent Basalt with some amygdales. |
15. | 26 | 27 | Brownish grey fresh competent Basalt. |
16. | 27 | 29 | Reddish brown fresh and competent Basalt with about 20% sub-rouned to rounded. |
17. | 29 | 30 | Reddish brown fresh and competent Basalt with about 10% amygdales. |
18. | 30 | 31 | Greenish brown fresh and comptent Basalt with about 10% amygdales. |
19. | 31 | 35 | Greenish brown fresh and competent Basalt. |
20. | 35 | 37 | Reddish brown fresh and competent Basalt with about 10% amygdales. |
21. | 37 | 43 | Greenish brown fresh and competent Basalt. |
22. | 43 | 45 | Greenish brown fresh and competent Basalt with about 5% amygdales. |
23. | 45 | 46 | Dark brown fresh and competent Basalt. |
24. | 46 | 48 | Greenish grey fresh and competent Basalt. |
25. | 48 | 49 | Greenish brown fresh and competent Basalt. |
26. | 49 | 51 | Greenish grey fresh and competent Basalt. |
27. | 51 | 52 | Greenish brown fresh competent Basalt. |
28. | 52 | 53 | Dark brown fresh and competent Basalt. |
29. | 53 | 55 | Dark brown fresh and competent Basalt with about 5% amygdales. |
30. | 55 | 58 | Dark brown fresh and competent Basalt. |
31. | 58 | 60 | Reddish brown fresh and competent Basalt with about 20% amygdales. |
32. | 60 | 61 | Reddish brown fresh and competent Basalt. |
33. | 61 | 62 | Dark brown fresh and competent Basalt. |
34. | 62 | 64 | Dark brown weathered Basalt. |
35. | 64 | 66 | Light brown fine grained unconsolidated Sandstone with about 30% brown Basalt. |
36. | 66 | 71 | Light brown fine grained unconsolidated Sandstone. |
37. | 71 | 72 | Dark orange fine grained unconsolidated Sandstone with some collapsed brown Basalt. |
38. | 72 | 76 | Dark orange fine grained unconsolidated Sandstone. |
39. | 76 | 77 | Light orange fine grained unconsolidated Sandstone. |
40. | 77 | 78 | Dark orange fine grained unconsolidated Sandstone. |
41. | 78 | 82 | Light orange fine grained unconsolidated Sandstone. |
42. | 82 | 83 | Yellowish orange fine grained unconsolidated Sandstone. |
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