Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL51/88 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -20.68951 , 24.124343 |
Location: Matlapana |
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 | 3 | Upper kalahari - mixed aeolian and lacustrine Sands. |
2. | 3 | 32 | Lake sediments - tuffaceous and nodular calcrete with pedotubes intercalated in part with hardpan calcrete, playa Silcrete and Silcrete gravels. |
3. | 32 | 38 | Lake sediments - predominantly hardpan calcrete. |
4. | 38 | 44 | Lake sediments - predominantly Silcrete (playa). |
5. | 44 | 46 | Lake sediments - massive grey Silcrete breccia. |
6. | 46 | 61 | Lake sediments - Silcreted alluvium, with playa Silcrete and minor amounts of diatomite. |
7. | 61 | 65 | Lake sediments - green pan clay, with hardpan and and Silcreted Sands. |
8. | 65 | 75 | Lake sediments - Silcrete, with pan clay and dolomite concretions, chalcedony concretions, nodular calcrete and pedotubes. |
9. | 75 | 105 | Lake sediments - poor sample recovery - pressure pan clay. |
10. | 105 | 151 | Lake sediments - quartz with concreted Sands (hosting pedotubes). Horizons of tuffaceous calcrete in parts. Intercalated with hardpan calcrete and playa Silcrete at depth. |
11. | 151 | 153 | Karoo bslt - wthrd profile. |
12. | 153 | 167 | Karoo bslt - fresh bslt. |
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