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Exploration Borehole


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 Borehole Number: 105/17/X541/H01

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL57/98
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -21.179803 , 24.37309
 Location: Orapa

 
 Start Drill: 2004-09-12
 End Drill: 2004-09-14
 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: 920 Metres
 Borehole Water Strike: 86 Metres
 End of Hole (Depth): 168 Metres
 Hole Diameter: 203 Millimetres

 
 Log Formation:
No.From (m)To (m) Log Formation
1.0 19Cream-white calcrete.
2.19 29Light-grey, Silcrete & cacrete input (minor lithology).
3.29 63Light-brown-pale-green pan sediments (Silcrete & cacretised Sandstones).
4.63 75Light-grey-reddish-brown weathered silty Clays.
5.75 110Light-brown, fine to medium grained moderately sorted, slightly micaceous Sandstone. Grey-dark grey coarse grained, moderately-poorly sorted Sandstone. Grey-dark grey, slightly carbonaceous mudstone.
6.110 119Light-brown, medium grained moderately sorted Sandstone, becoming quartzitic towards (113m). Reddish-brown, grey, amygdaloidal basalt.
7.119 130Grey, carbonaceous siltstones. Grey, light-grey intercalation of carbonaceous siltstone & micaceous Sandstone (medium grained). Light-grey, medium grained, moderately sorted Sandstone.
8.130 137Grey-black, carbonaceous, micaceous siltstones.
9.137 149Black Coal, light-grey, medium grained,micaceous Sandstone & Coally.
10.149 156Light-grey mudstones,medium grained Sandstone, intercalation of Coally mudstone & light-grey medium grained Sandstone.
11.156 164Coally mudstones (dark-grey)-black.
12.164 168Light-grey, medium grained, micaceous Sandstone. E.O.H.

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