Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL107/96 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -21.34985 , 25.460777 |
Location: Orapa |
Start Drill: 2005-05-13 |
End Drill: 2005-05-14 |
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: 984 Metres |
Borehole Water Strike: N/A |
End of Hole (Depth): 60 Metres |
Hole Diameter: 165 Millimetres |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 2 | Cream white weathered calcrete. |
2. | 2 | 4 | Reddish brown weathered basalt. |
3. | 4 | 11 | Dark brown fresh and competent basalt. |
4. | 11 | 12 | Dark brown fresh and competent basalt with about 5% calcite and Silcrete. |
5. | 12 | 17 | Dark brown fresh and competent basalt. |
6. | 17 | 18 | Brownish red weathered very fine grained rock. |
7. | 18 | 19 | Brownish red fresh amygdaloidal basalt. |
8. | 19 | 22 | Brownish ed fresh amygdaloidal basalt. |
9. | 22 | 25 | Greenish brown fresh and competent basalt. |
10. | 25 | 30 | Reddish brown fresh and competent basalt. |
11. | 30 | 35 | Reddish brown fresh basalt with about 5% calcite and Silcrete. |
12. | 35 | 36 | Dark brown weathered basalt wiith about 30% light orange Sandstone. |
13. | 36 | 37 | Light brown unconsolidated Sandstone. |
14. | 37 | 39 | Light brown unconsolidated Sandstone mixed with dark brown weathered mudstone. |
15. | 39 | 40 | Orange unconsolidated Sandstone. |
16. | 40 | 51 | Light orange unconsolidated fine grained Sandstone. |
17. | 51 | 60 | Yellowissh orange unconsolidated fine grained Sandstone. |
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