Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL107/96 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -21.114748 , 24.723596 |
Location: Sesunda |
Start Drill: N/A |
End Drill: N/A |
Borehole Type: Exploration |
Drilling Method: Core |
Sample Type: Core |
Depth of Surface Casing: N/A |
Azimuth: 0 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 | 1 | Greyish, fine-grained weathered cohesive Sand and calcrete. |
2. | 1 | 5 | Cream white to greenish, weathered calcrete. |
3. | 5 | 8 | Olive green, calcretised Silcrete (pan-sediments). |
4. | 8 | 20 | Olive green, calcretised Silcrete mixed with elongated tabular shaped calcretised Silcrete fragments (longer than 10cm) and loose rubbles (pan sediments). |
5. | 20 | 25 | Light green, fine to medium grained, calcretised Sandstone (very hard), mixed with loose Silcrete fragmments from above. |
6. | 25 | 30 | Light greyish green, calcretised mudstone contaminated by Silcrete fragment from above. |
7. | 30 | 35 | Olive greenish to orangish yellow, thinly laminated mudstone, Silcrete fragments from above lithology are persistent. |
8. | 35 | 41 | Greyish to reddish brown, thinly laminated mudstone. |
9. | 41 | 48 | Greyish oxidised (coated with orangish tint-oxide), thinly laminated mudstone. |
10. | 48 | 59 | Reddish brown, thinly laminated mudstone. |
11. | 59 | 62 | Orangish yellow to reddish brown, thinly laminated mudstone. |
12. | 62 | 105 | Very black, thinly laminated carbonaceous mudstone, with superabundant pyrite. |
13. | 105 | 120 | Cream white (whitish), weathered, very coarse grained (gritty) Sandstone. |
14. | 120 | 126 | Cream white, medium to coarse grained, weathered Sandstone. |
15. | 126 | 128 | Cream white, thinly laminated silty mudstone. |
16. | 128 | 154 | Dark greyish to black, very fresh and competent igneous mafic rock. |
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