Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL51/88 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -20.55253 , 24.28101 |
Location: Kweedom |
Start Drill: 1900-01-02 |
End Drill: 1900-01-02 |
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): 180 Metres |
Hole Diameter: N/A |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 2 | Residual Topsoil. |
2. | 2 | 8 | Lake sediments -calcretised Sandy lake sediments, hosting tabular trace fossils (planelites). |
3. | 8 | 24 | Silcritised Sandy lake sediments (with planelites) glauconitic in part. |
4. | 24 | 29 | Green mudstone,glauconitic. |
5. | 29 | 37 | Green mudstone. |
6. | 37 | 39 | Evaporite deposits (gypsum clusters). |
7. | 39 | 60 | Evaporite deposits(gypsum/dolomite clusters). |
8. | 60 | 65 | Green mudstone. |
9. | 65 | 147 | Evaporite deposits (gypsum and dolomite)intercalated with dark grey carbonaceous Shale.the Shale becomes pyritic with depth. |
10. | 147 | 159 | Evaporite deposits(as above) but becoming increasingly Sandy with depth. |
11. | 159 | 180 | Karoo bslt - melanocratic, fine grained massive. |
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