Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL2/97 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -21.501865 , 25.583485 |
Location: Letlhakane |
Start Drill: 2006-04-05 |
End Drill: 2006-04-06 |
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: 1016 Metres |
Borehole Water Strike: 75 Metres |
End of Hole (Depth): 84 Metres |
Hole Diameter: 165 Millimetres |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 2 | Brownish orange unconsolidated Sand. |
2. | 2 | 12 | Brownish orange to light brown silcretised Sandstone with a few calcrete chips. |
3. | 12 | 14 | Light orange silcretised calcrete with a lot of clay material. |
4. | 14 | 18 | Reddish brown slightly weathered basalt. |
5. | 18 | 22 | Reddish brown slightly weathered amygdaloidal basalt. |
6. | 22 | 30 | Greenish brown slightly weathered basalt with some calcite veins. |
7. | 30 | 32 | Reddish brown ferricretised amygdaloidal basalt. |
8. | 32 | 39 | Greenish brown fresh and competent basalt. |
9. | 39 | 52 | Greenish grey fresh competent basalt. |
10. | 52 | 55 | Greenish grey fresh and competent basalt with about 20% ferricretised reddish brown basalt. |
11. | 55 | 70 | Greenish grey fresh and competent basalt. |
12. | 70 | 76 | Reddish brown ferricretised and competent basalt. |
13. | 76 | 77 | Reddish brown chilled (heated) Sandstone. |
14. | 77 | 83 | Yellowish orange fine-medium grained consolidated Sandstone. |
15. | 83 | 84 | Light orange fine grained unconsolidated Sandstone. |
© Botswana Geoscience Institute 2024 | www.bgi.org.bw | Disclaimer