Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL78/88 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -22.422567 , 21.645046 |
Location: Ghanzi |
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 | 15 | U Kalahari - loose, poor to unconsolidated aeolian Sandstone, very few +2mm chips recovered, mostly Silcrete and quartz fragments. |
2. | 15 | 16 | Buff Silcrete. |
3. | 15 | 21 | L Kalahari - massive and competent and mottled mature playa Silcrete pervasively calcreted and buff white very fine grained moderately sorted calcareous Sandstone plus hardpan mature calcrete. |
4. | 16 | 17 | Sandy Silcrete and brown, mottled cryptocrystalline Silcrete. |
5. | 17 | 18 | Brown mottled cryptocrystalline Silcrete. |
6. | 18 | 19 | Mottled cryptocrystalline Silcrete. |
7. | 19 | 20 | Partially silicified buff nodular calcrete. |
8. | 20 | 21 | As above with fragments of pink gneiss. |
9. | 21 | 22 | Mesocratic pink porphyritic granitic gneiss. |
10. | 21 | 35 | Karoo - mauve brown /purplish massive mature and competent microcrystalline Silcrete/siltstone. |
11. | 22 | 31 | k-feldspar phenocrysts, accessory biotite and hornblende. |
12. | 31 | 36 | Porphyritic granitic gneiss |
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