Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL109/88 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -22.763756 , 26.096669 |
Location: Moralane |
Start Drill: 1900-01-02 |
End Drill: N/A |
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: 1197 Metres |
Borehole Water Strike: N/A |
End of Hole (Depth): 289 Metres |
Hole Diameter: N/A |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 7 | U Kalahari - Buff grey massive and mottled calcreted Silcrete |
2. | 7 | 25 | U Kalahari - L Kalahari - buff white fine grained, sub to mature argillaceous and calcareous Sandstone |
3. | 25 | 27 | L Kalahari - buff red tinged/stained fine grained, sub to mature argillaceous and calcareous Sandstone |
4. | 27 | 32 | Mosolotshane Fm - purplish mature gritstone comprising predominantly dark grey Silcrete fragments and buff white calcareous Sandstone |
5. | 32 | 39 | Mosolotshane Fm - purplish mauve mature and very fine grained well sorted argillaceous mudstone |
6. | 39 | 47 | Mosolotshane Fm - Purple grey sub mature gritstone comprising predominantly mottled dark grey Silcrete and minor amounts of mauve argillaceous mudstone |
7. | 47 | 53 | Mosolotshane Fm - mauve greenish grey tinted feldspathic and mature greywacke |
8. | 53 | 57 | Mosolotshane Fm - buff grey, moderately sorted, sub to mature argillaceous and massive siltstone |
9. | 57 | 58 | Mosolotshane Fm - Purple mauve sub mature gritstone dominated by mottled grey Silcrete clasts/fragments |
10. | 58 | 60 | Mosolotshane Fm - cream - white sub to mature, moderate to well sorted siltstone |
11. | 60 | 74 | Mosolotshane Fm - purple mauve platy mud/Claystone with argillaceous siltstone lenses |
12. | 74 | 76 | Mosolotshane Fm - light purple - brown, massive and mature, well sorted siltstone/Shale |
13. | 76 | 96 | Mosolotshane Fm - purple - mauve massive and mature mudstone with upward fining sequences. The sediment exhibits greyish lamination bands towards base. |
14. | 96 | 148 | Mosolotshane Fm - buff pale grey - brown massive and mottled siltstones, Shales, mud and Claystones |
15. | 148 | 278 | Tlapana Fm - grey - black massive and mature carbonaceous Shales with intermittent vitreous Coaly layers at 215-221m, 227-233m, 245-248m, and 250-262m depths |
16. | 278 | 289 | Basement - weathered/altered dark brown probable Amphiboliteibolite becoming dark grey black and fresh at depth |
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