| Borehole Number: |
| Prospecting Company: De Beers Holdings Botswana |
| Prospecting License No.: PL31/88 |
| Coordinates Type: WGS 84 |
| Coordinates Format: Decimal Degrees (DD) |
| Coordinates: -22.70406 , 27.883902 |
| 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. |
| 2. | 1 | 2 | Orange/yellow Clays becoming greener down to 7m - calcretized kimberlite - remnant chips are highly weathered brown. Includes some 2 degrees iron stained qtz basement rubble. |
| 3. | 2 | 6 | 7m - predominantly hard calcrete. |
| 4. | 6 | 9 | Predominantly yellow/green to green kimberlitic Clays with some remnant brown highly weathered kimberlite and abundant inclusions of weathered foliated brown qtz mica - Schist, quartz feldspathic gneiss, Amphiboliteibolite and pink k-fspar. |
| 5. | 9 | 27 | Mod - weathered phlogopite bearing kimberlite breccia - inclusion rich (chlorite Schists, QF gneiss and Amphiboliteibolite) visually confuring. Can only gneiss at 50% k 50% inclusions. |
| 6. | 27 | 32 | Notable abundance of phlogopite. |
| 7. | 32 | 39 | Predominantly green/brown micaceous Schist shattered xenolith. |
| 8. | 39 | 47 | Variuosly inclusion content, fresh, phlogopite bearing kimberlite breccia. Inclusions of Amphiboliteibolite pink gneiss, k-fspar, quartz, qtz - mica Schist and chlorite Schist 20% - 80% inclusions. |
| 9. | 47 | 63 | Pink felsic gneiss - xenolith. |
| 10. | 63 | 78 | 48-78m breccia kimberlite, difficult to define - generally chaotic. Oten difficult to separate kimberlite from various dark grey Schist. Inclusions variable from almost 100% to 5% micaceous Schist, k-fspar gneiss, chlorite Schist. |
| 11. | 78 | 81 | Felsic gneiss. |
| 12. | 81 | 97 | 80-97 highly weathered - drill product is predom, dark grey - green Clays Amphiboliteibolite. |
| 13. | 97 | 101 | Qtz biotite gneiss. |
| 14. | 101 | 110 | 100% phlogopite rich & macrocrystic fresh hypabyssal kimberlite. Nice to see such comincing kimberlite for a change. |
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