| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL31/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.703636 , 27.883524 |
| 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. | 1 | 3 | Calcretised Sand and basement fragments + some free quartz, feldspar and mica Schist. |
| 3. | 3 | 6 | Highly weathered brown kimberlite (difficult to distinguish from weathered Schist despite foliation in latter). Variable proportions of inclusions (95-50%) pink granite gneiss, micaceous - Amphiboliteibolite Schist, quartz. |
| 4. | 6 | 23 | Fresh to moderately fresh grey, greenish grey or brown grey fine grained featureless hypabyssal kimberlite - rare macrocrystic phlogopite. |
| 5. | 23 | 27 | Variable inclusions content 80-50% quartz, k-feldspar, Amphiboliteibolite. |
| 6. | 27 | 34 | Moderately fresh hypabyssal kimberlite 80-50% inclusions. |
| 7. | 34 | 43 | 44m - no sample recorved. |
| 8. | 43 | 48 | Qtz and feldspar veined Amphiboliteibolite. |
| 9. | 48 | 67 | Amphiboliteibolite |
| 10. | 67 | 75 | 76m - water. |
| 11. | 75 | 81 | 82m - chlorite bearing feldspar and Amphiboliteibolite. |
| 12. | 81 | 83 | Fine grained light grey featureless hypabyssal kimberlite - occasional |
| 13. | 83 | 86 | 86-88m no sample. |
| 14. | 86 | 89 | 89m - 95% inclusions. |
| 15. | 89 | 90 | 90m no sample. |
| 16. | 90 | 94 | 91m - 40% inclusions (Amphiboliteibolite). |
| 17. | 94 | 96 | Fine light grey featureless hypabyssal kimberlite. Occasional |
| 18. | 96 | 102 | Inclusions 40% to >95% of sample - predominantly Amphiboliteibolite and chloritic feldspar. |
| 19. | 102 | 107 | 95% + inclusions. |
| 20. | 107 | 109 | 108m - 90% inclusions. |
| 21. | 109 | 110 | 110m - 95% + inclusions. |
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