| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL111/93 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: N/A |
| 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 | 9 | grey-green pebbly calcrete,well rounded quartz granules |
| 2. | 9 | 15 | well rounded pebbles of won stained quartz,pebbly calcrete |
| 3. | 15 | 30 | predominantly quartz pebbles,calcreted Conglomerateate |
| 4. | 30 | 35 | mainly white,gritty,Sandy calcrete |
| 5. | 35 | 40 | white nodular calcrete,biotubes,quartz granules |
| 6. | 40 | 45 | kalahari Sandy calcrete,silicified pink arenite |
| 7. | 45 | 50 | cream purple,silicified quartz arenite |
| 8. | 50 | 55 | moderately sorted pink quartz arenite |
| 9. | 55 | 60 | pink quartz arenite,siderefic Silcrete,light grey karoo siltstone |
| 10. | 60 | 65 | light to dark grey siltstosne |
| 11. | 65 | 70 | predominantly dark grey siltstone,not carbonaceous |
| 12. | 70 | 90 | carbonaceous Shale,vitrite,won pyrites |
| 13. | 90 | 95 | as above with light grey micaceous arkose |
| 14. | 95 | 105 | well rounded quartz granules,carbonaceous Shale,arkose |
| 15. | 105 | 110 | dark grey micaceous arkose/silt laminated,iron pyrites |
| 16. | 110 | 115 | laminated micaceous silt,cream arkose, iron pyrites |
| 17. | 115 | 120 | carbonaceous Shale,vitrite Coal |
| 18. | 120 | 125 | light brown micaceous arkose |
| 19. | 125 | 130 | light grey micaceous arkose,quartz granules |
| 20. | 130 | 135 | predominantly well rounded quartz granules |
| 21. | 135 | 140 | dark grey micaceous siltstone,light grey mica arkose |
| 22. | 140 | 145 | micaceous arkose,quartz granules |
| 23. | 145 | 150 | grey siltstone wthrd intrusive |
| 24. | 150 | 155 | light grey brown stained siltstone,fresh black intrusive |
| 25. | 155 | 160 | fresh melanocratic,microcrystalline intrusive(dolerite) |
| 26. | 160 | 165 | microcrystaline dolerite |
| 27. | 165 | 170 | microcrystaline dolerite,light grey siltstone |
| 28. | 170 | 180 | microcrystlline dolerite |
| 29. | 180 | 185 | microcrystalline dolerite,large epidote crystals |
| 30. | 185 | 189 | microcrystalline dolerite |
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