| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL31/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.704827 , 27.883137 |
| 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 | Brown Topsoil. |
| 2. | 2 | 4 | Weakly calcretised kimberlite, Amphiboliteibolite. |
| 3. | 4 | 5 | Olive green weathered kimberlite. |
| 4. | 5 | 7 | 40% inclusions (k-fspar) |
| 5. | 7 | 12 | Greenish kimberlite (chloritisation) and pink (kfs) fibre gneiss - xenolith. |
| 6. | 12 | 19 | 40% incl (kfs, Amphibolitei). |
| 7. | 19 | 23 | Olive green, weathered, black mottled, non - macrocrystic, phlogopite bearing hypabyssal kimberlite. 30% incl (kfs Amphiboliteib). |
| 8. | 23 | 24 | 95% incl (fibre gneiss). |
| 9. | 24 | 26 | 100% incl (fibre gneiss in k coatings). |
| 10. | 26 | 27 | Moderately weathered green/brown inclusion rich kimberlite. |
| 11. | 27 | 29 | 20% incl (kfs Amphiboliteib). |
| 12. | 29 | 32 | 10% incl (kfs Amphiboliteib). |
| 13. | 32 | 33 | Fresh dark grey - green features, phlogopite bearing hypabyssal kimberlite. |
| 14. | 33 | 36 | 50% incl (kfs, Amphibolite, green cryptocrystalline silica). |
| 15. | 36 | 39 | 90% incl (kfs, Amphiboliteib). |
| 16. | 39 | 41 | Pink & green felsic gneiss - xenolith. |
| 17. | 41 | 43 | 40% incl (kfs, gneiss). |
| 18. | 43 | 44 | 10% incl (kfs ). |
| 19. | 44 | 46 | 60% incl (kfs, green fsp, Amphibolite). |
| 20. | 46 | 49 | 40% icl (kfs, Amphibolite). |
| 21. | 49 | 53 | Significant drop in % inclusions otherwise k remain same. |
| 22. | 53 | 55 | 5% incl (kfs). |
| 23. | 55 | 59 | 0% incl |
| 24. | 59 | 64 | 50% incl (kfs, Amphibolite, green cryptocrystalline silica). |
| 25. | 64 | 69 | 0% incl |
| 26. | 69 | 70 | Dark grey, phlogopite beaing, evenly textured, inclusion poor hypabyssal kimberlite. |
| 27. | 70 | 79 |
| 28. | 79 | 89 | 20% incl (grey coated (k) quartz). |
| 29. | 89 | 94 | 2% incl. |
| 30. | 94 | 96 | Dark grey, features, hypabyssal kimberlite as described above. |
| 31. | 96 | 99 | 5% incl (kfs, Amphibolite). |
| 32. | 99 | 104 | 1% incl (kfs, Amphibolite). |
| 33. | 104 | 111 | 20% incl (kfs, Amphibolite). |
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