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Exploration Borehole

 Borehole Number: 105/21/X006

 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL78/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -22.969339 , 21.514262
 Location: Ghanzi

 Start Drill: 0000-00-00
 End Drill: 0000-00-00
 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: Metres
 End of Hole (Depth): N/A
 Hole Diameter: Millimetres

 Log Formation:
No.From (m)To (m) Log Formation
1.0 18Upper Kalahari: Loose Kalahari Sands.
2.18 32Upper Kalahari: Semiconsolidated Sands and Silcrete.
3.32 155Lower Kalahari: Thick homogenous sequence of medium grained calcareous Sandstone - frequent colour variations - but dominantly light grey/tan/light pink.
4.155 171Karoo: Mixed horizons of silty mudstone, fine Sandstone and coarse Sandstone (fining upwards).
5.171 216Karoo: Dark grey/green/black coarse grained dolerite.Top 5m highly wthrd - 215m-chilled hornfelsic margin in dolerite.
6.216 229Karoo: White clean medium grained Sandstone grain supported. (Aquifer major fresh water strike) Much milky quartz gravel and pebbles.
7.229 244Karoo: Light to medium grey Sandy siltstone.
8.244 260Karoo: White to light grey fine to medium Sandstone (Aquifer-second water strike).
9.260 268Karoo: Dark grey muddy siltstone with minor mudstone.
10.268 290Karoo: Coal measures-dark grey black mudstone, fine grained massive Sandstone, siltstones, occasional vitreous black Coal horizons (mica seen throughout).

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