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Exploration Borehole


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 Borehole Number: 105/17/X926/H01

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL107/96
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -21.02557 , 24.62122
 Location: Khoekhe

 
 Start Drill: 2005-09-02
 End Drill: 2005-09-06
 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: 11 Metres
 End of Hole (Depth): 191 Metres
 Hole Diameter: 165 Millimetres

 
 Log Formation:
No.From (m)To (m) Log Formation
1.0 1Light yellowish, fine-grained loose Sand.
2.1 10Light to dark greenish, calcretised Silcrete (very hard).
3.10 36Brownish to yellowish green, calcretised tabular shaped (elongated needle like) mixture of Silcrete (very hard) and Sandstone (gravel size fragments referred to as pan sediments).
4.36 41Cream whitish, calcretised (weathered), medium to coarse grained Sandstone characterised by abundant quartz clasts.
5.41 54Greyish green to brownish, silty Mudstone, highly contaminated by the overlying Kalahari sediments.
6.54 58Yellowish brown (orangish), thinly laminated silty Mudstone. Pyrite observed in concentrate.
7.58 62Dark brownish to light yellowish, thinly laminated Mudstone.
8.62 69Yellowish orange, weathered, thinly laminated silty Mudstone. Pyrite recovered in concentrate.
9.69 90Reddish brown, oxidised, thinly laminated silty Mudstone. Pyrite observed in concentrate.
10.90 146Dark greyish to black (darkening with depth), thinly laminated carbonaceous (Coally), pyrite rich Mudstone.
11.146 149Cream white, fine to medium grained weathered Sandstone.
12.149 179Dark greyish to black, thinly laminated carbonaceous (Coally) Mudstone with super abundant pyrite.
13.179 183Dark greyish (black), carbonaceous (Coally), thinly laminated Mudstone, rich in pyrite, with increasing sediment contaminant with depth.
14.183 191Light brown, medium grained, weathered micaceous Sandstone.

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