| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL51/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -20.72961 , 24.12966 |
| Location: Matlapana |
| Start Drill: 1900-01-02 |
| End Drill: 1900-01-02 |
| Borehole Type: Exploration |
| Drilling Method: Core |
| Sample Type: Core |
| Depth of Surface Casing: N/A |
| Azimuth: Degrees |
| Hole Inclination: N/A |
| Collar Elevation: N/A |
| Borehole Water Strike: N/A |
| End of Hole (Depth): 145 Metres |
| Hole Diameter: N/A |
| Log Formation: |
| No. | From (m) | To (m) | Log Formation |
|---|
| 1. | 1 | 4 | Upper Kalahari - Sandy calcrete. |
| 2. | 4 | 19 | Predominantly white pan clay, some playa Silcrete Sandy calcrete with minor brown playa Silcrete. |
| 3. | 19 | 27 | Tuffaceous calcrete. |
| 4. | 27 | 32 | Tuffaceous calcrete, with Silcrete pebbles. |
| 5. | 32 | 36 | Tuffaceous calcrete, some pan clay. |
| 6. | 36 | 46 | Green brown Silcreted calcrete, playa Silcrete (cryptocrystalline) grey black Sandy Silcrete. |
| 7. | 46 | 59 | White cryptocrystalline Silcrete, some pan clay.Cryptocrystalline Silcrete. . Rhumbohedral concretions after dolomite. |
| 8. | 59 | 62 | Green pan clay with cryptocrystalline Silcrete. |
| 9. | 62 | 102 | Green pan clay, cryptocrystalline Silcrete, quartz arenite. Rhombohedral concretes after dolomite Silcreted calcrete. |
| 10. | 102 | 105 | Concretions, quartz arenite, pan clay massive bioturbated quartz arenite with Silcrete. |
| 11. | 105 | 110 | Massive Silcrete concretions, playa Silcrete. |
| 12. | 110 | 120 | As above with pyrite unfilled padotubes Quartz arenite. |
| 13. | 120 | 123 | Silcreted calcrete or Silcretezd quartz wache. |
| 14. | 123 | 145 | Green highly silicified and serpentinised dolerite veined with quartz and epidote (?) evident plagrodase laths |
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