| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL31/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.704901 , 27.881476 |
| 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 with qtz & fsp fragments. |
| 2. | 1 | 3 | Nodular calcretised & silicified Sand & burnt fragments. |
| 3. | 3 | 9 | Silicified and calcretised Sand - much granular quartz in silicified matrix. Traces of a greenish, black mottled, silicified rock - Amphiboliteibolite. |
| 4. | 9 | 12 | Highly to moderately weathered mica rich, qtz fspar + Amphiboliteibole bearing, foliated rock. |
| 5. | 12 | 13 | Biotite - Amphiboliteibolite Schist. |
| 6. | 13 | 30 | Weathered product as ++ greenish Clays. |
| 7. | 30 | 32 | Fine grained, featureless foliated - easily chewable rock. Chl visible under microscope. |
| 8. | 32 | 34 | Chlorite Schist. |
| 9. | 34 | 37 | Dark grey, medium grained quartzite. |
| 10. | 37 | 47 | Quartzite |
| 11. | 47 | 55 | Quartz - feldspar - biotite Schist. |
| 12. | 55 | 60 | Med grained - equigranular Amphiboliteibolite. |
| 13. | 60 | 69 | Qtz - fspar - bt Schist. |
| 14. | 69 | 71 | Amphiboliteibolite |
| 15. | 71 | 88 | Altered chloritic quartzo - feldspathic rocks. |
| 16. | 88 | 110 | Migmatitic Amphiboliteibolite. |
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