Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL57/98 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -21.506601 , 24.470885 |
Location: Kedia |
Start Drill: 2004-09-10 |
End Drill: 2004-09-13 |
Borehole Type: Exploration |
Drilling Method: Percussion & Core |
Sample Type: Core & Chips |
Depth of Surface Casing: N/A |
Azimuth: Degrees |
Hole Inclination: -90 Degrees |
Collar Elevation: 939 Metres |
Borehole Water Strike: N/A |
End of Hole (Depth): 141 Metres |
Hole Diameter: 165 Millimetres |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 5 | Grey-fine Sand & Topsoil with cream-white calcrete. |
2. | 5 | 8 | Cream-white calcrete. |
3. | 8 | 16 | Dark-grey fine but massive Silcrete & minor Sandy calcrete. |
4. | 16 | 26 | Cream-white calcareous Sandstone. Note green "pan material" (Chlorite ? At 25m). |
5. | 26 | 33 | Grey-pink fine grained calcretised Sandstone. Cream-white medium grained Sandy calcrete (but with) some pinkish input. |
6. | 33 | 37 | Cream-white & pink calcareous Sandstone, pinkish fine to medium grained Sandstone.( colour intensity increases slightly downward. |
7. | 37 | 62 | Reddish colour intensity increases downward, red-brown fine grained Sandstone, becomes coarser and bioturbated. Abundant Garnets seen in concentrate from this layer of lower Kalahari in +0.425-1.0mm fraction. |
8. | 62 | 68 | Red-brown-yellowish siltstone, red-brown mudstone. |
9. | 68 | 119 | Red-brown-greyish siltstone becomes dark-brown then greyish siltstone. |
10. | 119 | 142 | Dark-grey fine grained pyritic -magnetic igneous rock (Basalt?). |
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