Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL31/88 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -22.704075 , 27.883817 |
Location: Lerala |
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 | 16 | No recovery- non coring tri-cone bit. |
2. | 16 | 34.6 | Weathered TKB. |
3. | 34.6 | 67.6 | TKB. Point count inclusions:32% and 34%. |
4. | 67.6 | 80.4 | Inclusion free hypabyssal kimberlite. |
5. | 80.4 | 107.8 | TKB. Point count inclusions:37% and 61%. |
6. | 107.8 | 118.3 | Xenolithic breccia. Point count inclusions: 83%. |
7. | 118.3 | 128.25 | TKB. Point count inclusion: 76%. |
8. | 128.25 | 133 | Felsic gneiss. |
9. | 133 | 136.4 | Inclusion free hypabyssal kimberlite. |
10. | 136.4 | 160.9 | Xenolithic breccia. ->95% xenolithic content. |
11. | 160.9 | 164.25 | Hypabyssal kimberlite- point count 29% inclusions. |
12. | 164.25 | 205.7 | Wall rock? Breccia. |
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