| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL31/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.704448 , 27.883129 |
| 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 | 2 | Dark brown clayey Topsoil. |
| 2. | 2 | 5 | Yellow calc/silc basement frag + qtz, Amphibolite, kfspar. |
| 3. | 5 | 23 | Predominantly olive green clay highly weathered green/brown, mottled, gritty kimberlite (gritty in sense that it looks like immature Sandstone) inclusions variable 20-80% kfspar, Amphiboliteibolite. |
| 4. | 23 | 29 | Kimberlite is mod fresh - fresh below 23m, olive green - grey generally features hypabyssal kimberlite. Inclusions variable 95-5% k-fspar and Amphiboliteibolite. Kimberlite is phlogopite bearing books up to 5mm observed. |
| 5. | 29 | 30 | 5% inclusions. |
| 6. | 30 | 32 | 20% inclusions |
| 7. | 32 | 33 | 10% inclusions. |
| 8. | 33 | 38 | 5% inclusions. |
| 9. | 38 | 40 | Fresh grey - green, features hypabyssal kimberlite. |
| 10. | 40 | 46 | 90% inclusions pale green chloritic qtz. |
| 11. | 46 | 48 | 95% inclusions. |
| 12. | 48 | 50 | Amphiboliteibolite and k-fspar - xenolith. |
| 13. | 50 | 51 | 52m 20% inclusions. |
| 14. | 51 | 53 | Amphiboliteibolite - xenolith. |
| 15. | 53 | 59 | 20% inclusions |
| 16. | 59 | 62 | 20% inclusions - green layered microcrystalline qtz. |
| 17. | 62 | 65 | 5% inclusions. |
| 18. | 65 | 70 | 20% inclusions. |
| 19. | 70 | 72 | 40% inclusions. |
| 20. | 72 | 79 | Grey, features, phlogopite bearing hypabyssal kimberlite. |
| 21. | 79 | 82 | 20% inclusions. |
| 22. | 82 | 85 | 50% inclusions. |
| 23. | 85 | 89 | 95% inclusions. |
| 24. | 89 | 97 | 30% inclusions. |
| 25. | 97 | 110 | Fine, grey, features, phlogopite bearing hypabyssal kimberlite. Inclusions variable 95-5% Amphiboliteibolite and k-feldspar. |
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