| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL31/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.702593 , 27.897864 |
| 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): 101 Metres |
| Hole Diameter: Millimetres |
| Log Formation: |
| No. | From (m) | To (m) | Log Formation |
|---|
| 1. | 0 | 1 | Brown Topsoil. |
| 2. | 1 | 5 | Green macrocrystic kimberlite + kfs gneiss 2 degrees Fe stain qtz rubble. |
| 3. | 5 | 21 | Olive green fresh (serpentinized) macrocrystic hypabyssal kimberlite inclusions 5-15% kfspar gneiss. |
| 4. | 21 | 31 | Biotite bearing quartz - feldspathic gneiss. |
| 5. | 31 | 35 | Dark grey macrocrystic kimberlite. Inclusions variable 95-40% pink kfs gneiss. Inclusions often small & angular possible hypabyssal breccia. |
| 6. | 35 | 38 | Amphiboliteibolite. |
| 7. | 38 | 44 | Dark grey macrocrystic hypabyssal brecciated kimberlite, 50% inclusions kfs gneiss. |
| 8. | 44 | 49 | Green phlogopite rich macrocrystic hypabyssal kimberlite, 5% inclusions. |
| 9. | 49 | 52 | Coarse grain Amphiboliteibolite. |
| 10. | 52 | 91 | Olive green weakly macrocrystic hypabyssal kimberlite. Inclusions variable 60% small inclusions (often of order of 1mm). Appears brecciated at times. |
| 11. | 91 | 101 | Brown grey evenly textured weakly macrocrystic, phlogopite bearing hypabyssal kimberlite 0-2% inclusions. |
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