| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL31/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.705195 , 27.882771 |
| Location: Lerala |
| Start Drill: 0000-00-00 |
| End Drill: 0000-00-00 |
| 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: Metres |
| End of Hole (Depth): N/A |
| Hole Diameter: Millimetres |
| Log Formation: |
| No. | From (m) | To (m) | Log Formation |
|---|
| 1. | 0 | 1 | Topsoil |
| 2. | 0 | 6 | Calcretes + Silcretes. |
| 3. | 1 | 2 | Mixture of basement fragments & Silcretes & calcretes. |
| 4. | 2 | 13 | Pink felsic basement intercalated with fine grained grey crystalline siliceous material. |
| 5. | 6 | 10 | Basement |
| 6. | 10 | 50 | Pink felsic basement. |
| 7. | 13 | 39 | Small piece of identifiable kimberlite - blue featureless, no texture or metamorphine texture present. |
| 8. | 39 | 45 | Pink felsic basement intercalated with fine grained grey crystalline siliceous material. |
| 9. | 45 | 55 | Rapid change to soft blue kimberlite chews to blue clay. No texture or metamorphic texture present. Felsic basement fragments rare. |
| 10. | 50 | 56 | Pink felsic basement, 1 piece of kimberlite at 40m. |
| 11. | 55 | 65 | Hypabyssal kimberlite. |
| 12. | 56 | 70 | Basement |
| 13. | 65 | 98 | Kimberlite progressively becomes darker with introduction of black Amphiboliteibolite fragments. |
| 14. | 70 | 90 | Kimberlite |
| 15. | 90 | 106 | Kimberlite with Amphiboliteibolite fragments. |
| 16. | 98 | 107 | Kimberlite dark, associated with Amphiboliteibolite fragments. |
| 17. | 106 | 110 | Wallrock basement. |
| 18. | 107 | 110 | Wallrock - basement consisting of felsic basement. |
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