| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL78/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.944341 , 21.631488 |
| Location: Ghanzi |
| 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 | 4 | 3m- Semi consolidated orange/yellow calcareous Sands. |
| 2. | 4 | 6 | 5m- Sandy calcrete- celimiar structure. |
| 3. | 6 | 12 | 7m- Becomes light buff- red-coarse sub rounded, Sand grains within 8m- black Sands (?). |
| 4. | 12 | 14 | 14m- Light grey calcareous silts, very fine laminations. |
| 5. | 14 | 18 | 15m- Red calcareous Sands. |
| 6. | 18 | 20 | 20m- Calcareous silts and Sands. |
| 7. | 20 | 22 | 22m- Becoming red and grey. |
| 8. | 22 | 26 | 23m- Some very coarse well rounded quartz grains. |
| 9. | 26 | 28 | 27m- Silty calcrete red/orange/brown limonitic staining, some Silcrete- dark grey- ( flint like). |
| 10. | 28 | 30 | 30m- Calcareous Sands- mottled orange/red/brown. Fine- medium grained. |
| 11. | 30 | 34 | 31m- Silty calcareous Sands- sugary texture white. Becoming pink/light red. Vuggy calcite crystals. |
| 12. | 34 | 38 | 36m- Pale grey/off white homogenous Sandy calcrete occasionally speckled (black/red flecks). |
| 13. | 38 | 44 | 40m- As above- mottled pink- becoming a calcretised Sand rather than Sandy calcrete. Coarse grained. |
| 14. | 44 | 45 | 45m- Very coarse calcareous grits- well sorted. |
| 15. | 45 | 52 | 46m- Very Sandy calcrete, off white, pink, brown with minor Silcretes- (calcretised Sandstone?). |
| 16. | 52 | 60 | Same as above- many minor colour variations. |
| 17. | 60 | 64 | Calcareous fine to coarse Sandstone with minor Silcrete persistant throughout. |
| 18. | 64 | 78 | Colour variations only. |
| 19. | 78 | 80 | 80m- Dark pink/red calcareous Sandstone. |
| 20. | 80 | 88 | 81m- Orangey/pink calcareous Sandstone. |
| 21. | 88 | 90 | 90m- Light grey mottled pink calc Sandstone. |
| 22. | 90 | 98 | Light pink calcareous fine grained Sandstone. |
| 23. | 98 | 100 | 100m- Off white very light pink med grained calc Sandstone. |
| 24. | 100 | 120 | Colour and grain size variations but otherwise very homogenous. |
| 25. | 120 | 138 | Homogenous calcareous Sandstone- colour varies frequently, pink/grey/off white, cream. |
| 26. | 138 | 146 | 139m- Light grey mottled to dark grey/black coarse- medium grained calcareous Sandstone. |
| 27. | 146 | 148 | 148m- Very coarse/gritty calc Sandstone. Limonitic red/orange/brown wthrd staining. |
| 28. | 148 | 150 | 150m- Coarse pink- light brown calc Sandstone. |
| 29. | 150 | 155 | 151m- Very gritty Sandstone/Conglomerateerate- pink /opaque qtz grains. |
| 30. | 155 | 157 | 156m- Light grey/brown finely laminated siltstone. |
| 31. | 157 | 159 | 158m- Dark red/green/grey iron stained wthrd dolerite. Thin veining- possibly qtz- highly magnetic. |
| 32. | 159 | 161 | 160m- Light brown/grey silty mudstone + wthrd dolerite. |
| 33. | 161 | 165 | 162m- Coarsening to muddy siltstone. |
| 34. | 165 | 167 | 167m- Pink/red/brown highly wthrd dolerite fragments. |
| 35. | 167 | 171 | 168m- Laminated siltstone. |
| 36. | 171 | 173 | 170m- Light-med grey very fine laminated mudstone - but with a perculiar mottled/speckled rock:- dark- med green with light green spots- possibly metamorphosed mudstone adjacent to dolomite sill (hornfels). |
| 37. | 173 | 178 | 174m- Light green laminated mudstone. |
| 38. | 178 | 180 | 180m- Light grey (occ slightly pink) mudstone- many tiny black flecks. |
| 39. | 180 | 184 | 181m- Medium brown/grey mudstone. |
| 40. | 184 | 188 | 185m- Becomes pink- light green. |
| 41. | 188 | 190 | 189m- Silty laminated light grey/green/pink mudstone. |
| 42. | 190 | 192 | 191m- Light grey to pink brown siltstone (some quartz + pyrite veins) laminated siltstone. |
| 43. | 192 | 193 | 193m- wthrd red/brown very coarse gritty Sandstone. |
| 44. | 193 | 195 | 194m- Light grey/brown laminated siltstone- speckled with tiny black flecks. |
| 45. | 195 | 196 | 196m- As above with fractured/veining poss qtz/calcite? |
| 46. | 196 | 202 | 197m- Highly wthrd red/brown- dark grey fine grained dolerite. |
| 47. | 202 | 210 | Becoming coarser and progressively less wthrd. |
| 48. | 210 | 225 | Crystalline medium grained dark green to black fresh dolerite. |
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