| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL111/93 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -20.468919 , 26.380786 |
| Location: Dukwi |
| Start Drill: N/A |
| End Drill: N/A |
| 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: N/A |
| End of Hole (Depth): N/A |
| Hole Diameter: N/A |
| Log Formation: |
| No. | From (m) | To (m) | Log Formation |
|---|
| 1. | 0 | 15 | cream brown Sandy Silcrete |
| 2. | 15 | 19 | fine pink quartz arenite-arkose |
| 3. | 19 | 25 | grey-pink arkose |
| 4. | 25 | 30 | coarse poorly sorted,pink arkose |
| 5. | 30 | 35 | light grey arkose,cream light brown mudstone |
| 6. | 35 | 45 | light brown mudstone |
| 7. | 45 | 50 | dark grey-black carbonaceous mudstone |
| 8. | 50 | 55 | dark grey mudstone,black carbonaceous Shale,vitrinite |
| 9. | 55 | 60 | dark grey mudstone,black Shale-Coal |
| 10. | 60 | 65 | predominantly black Shale-Coal |
| 11. | 65 | 70 | dark grey mudstone,vitrinite-Coal |
| 12. | 70 | 80 | dark grey Shale-Coal |
| 13. | 80 | 90 | vitreous Coal,dark grey Shale |
| 14. | 90 | 95 | dark grey-black Shale,vitreous Coal |
| 15. | 95 | 100 | black Shale,vitreous Coal,won pyrites |
| 16. | 100 | 105 | dark grey Shale,Coal,mid brown Shales |
| 17. | 105 | 110 | carbonaceous Shale,light brown siltstone |
| 18. | 110 | 115 | predominantly carbonaceous Shale/Coal Fes |
| 19. | 115 | 120 | carbonaceous Shale,light brown siltstone |
| 20. | 120 | 130 | Coal light grey,medium grained micaceous arkose |
| 21. | 130 | 135 | cream-pink arkose,buff-pink mudstone,grey Shale |
| 22. | 135 | 140 | dark grey Shale/Coal,micaceous arkose,quartz granules |
| 23. | 140 | 145 | vein quartz gravel lag,some cream arkose |
| 24. | 145 | 150 | dark grey carbonaceous Shale |
| 25. | 150 | 160 | vein quartz gravel lag-sub-well rounded granules |
| 26. | 160 | 165 | dark grey Shale,subrounded quartz granules |
| 27. | 165 | 180 | Coal carbonaceous Shale,grey-brown micaceous arkose |
| 28. | 180 | 190 | subrounded quartz granules,grey micaceous arkose |
| 29. | 190 | 195 | grey siltstone,grey brown arkose,quartz granules |
| 30. | 195 | 200 | dark grey siltstone, quartz granules,micaceous arkose |
| 31. | 200 | 210 | predominantly light grey siltstone,few quartz granules |
| 32. | 210 | 215 | light grey siltstone/grey wacke>15% matrix quartz,feldspar,lithic clasts |
| 33. | 215 | 220 | pink granite gneiss basement |
| 34. | 220 | 225 | grey siltstone,pink gneiss |
| 35. | 225 | 230 | granitic gneiss |
| 36. | 230 | 234 | vitreous Coal(contamination or mislabelled) |
| 37. | 234 | 236 | granitic gneiss |
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