Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL51/88 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -20.294679 , 24.43929 |
Location: Senagom |
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 | 1 | Residual Topsoil. |
2. | 1 | 20 | Inmature Sandy calcrete with gasteropoda remains. |
3. | 20 | 32 | With nodular calcrete green pan clay. |
4. | 32 | 40 | Buff quartz arenite , Sandy Silcrete. |
5. | 40 | 50 | Predominantly green siltstone, dark grey cryptocrystalline Silcrete (playa Silcrete). |
6. | 50 | 94 | Evaporite deposits gypsum and dolomite euhedra, playa Silcrete, Sandy Silcrete after calcrete. |
7. | 94 | 110 | Pebble horizon 1-5cm clasts. Evaporite deposits. |
8. | 110 | 156 | Green pan clay, dolomite euhedra with fragments of fine, calcretised quartz arenite. Green pan clay, porous quartz arenite, dolomite. |
9. | 156 | 218 | Green pan clay, dolomite concretions. Fine, neutral light green quartz arenite with authigenic pyrite and pedoclasts. Light green fine quartz arenite with authigenic pyrite and pedotubes. |
10. | 218 | 220 | Light green fine quartz arenite. |
11. | 220 | 227 | Samples missing. |
12. | 227 | 251 | Green - brown chloritized bslt. |
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