Borehole Number: |
Prospecting Company: De Beers Holdings Botswana |
Prospecting License No.: PL109/88 |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -22.758756 , 26.24168 |
Location: Moralane |
Start Drill: 1996-01-01 |
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: N/A |
Collar Elevation: N/A |
Borehole Water Strike: N/A |
End of Hole (Depth): 286 Metres |
Hole Diameter: N/A |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 4 | Unconsolidated,coarse-grained,aeolian granitic sands dominated by quartz,feldspar,silcrete,ferricrete clasts. |
2. | 4 | 10 | Dark grey-black,massive,mottled,mature calcreted silcrete. |
3. | 10 | 22 | Buff-white,massive,sub to mature,well sorted,argillaceous and ubiquitously silcreted calcareous sand/siltstone. |
4. | 22 | 69 | Purple-grey,mature,well sorted,argillaceous,calcareous shale/siltstone. |
5. | 69 | 70 | Pale purple,white,spotted,mature,carbonaceous mudstone. |
6. | 70 | 71 | Coarse-grained quartzitic/feldspathic gritstone with pale-greyish-green shale clasts. |
7. | 71 | 77 | Buff to pale grey uniform calcareous clay/siltstone. |
8. | 77 | 79 | Pale purple to buff-grey, mature, carbonceous, spotted mudstone/siltstone. |
9. | 79 | 120 | Grey to purple, uniform shale with motled mud clasts. |
10. | 120 | 137 | Light-grey massive and uniform, competent and mature non-calcareous silty shale. |
11. | 137 | 172 | Dark greenish-grey/black,uniform,massive,mature,carbonaceous,spotted,micaceous,silty shale. |
12. | 172 | 179 | Light-grey black,medium to coarse-grained,massive,mature,well sorted,arenitic,carbonaceous greywacke/qyartzwacke. |
13. | 179 | 200 | Dull dark-grey,mature,vitraneous shaly coal with vitreous coal ceams betwwen 196-200m. |
14. | 200 | 205 | Light-grey,massive,mature,well sorted,slightly organic shale/siltstone. |
15. | 205 | 233 | Dull dark-grey black mature and vitraneous shaly coal. |
16. | 233 | 235 | Dark-grey,massive,mature,wellsorted,argillaceous,carbonaceous,shaly siltstone which grades into a coarse,arenitic carbonaceous quartzwacke at base. |
17. | 235 | 246 | Dull dark-grey black massive and mature competent carbonaceous shale. |
18. | 246 | 250 | Light to dull-grey,medium to coarse-grained,arenitic,well sorted,mature,carbonaceous quartzwacke. |
19. | 250 | 257 | Dull dark-grey black,massive,mature,competent,carbonaceous shale with shaly coal seams at 253-256m. |
20. | 257 | 261 | Missing sample. |
21. | 261 | 271 | Greenish-grey,fine to medium-grained,crystalline,massive,feldspathic granophyre,variously weathered and altered. |
22. | 271 | 280 | Missing sample. |
23. | 280 | 286 | Dull greenish-grey-black, altered, fine to medium-grained, feldspathic granophyre. E.O.H |
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