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Exploration Borehole


 
 Borehole Number: 105/17/X212/H01

 
 Prospecting Company: De Beers Prospecting Botswana (Pty) Ltd
 Prospecting License No.: PL 7/2000
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -21.4745 , 24.569599
 Location: Orapa

 
 Start Drill: 0000-00-00
 End Drill: 0000-00-00
 Borehole Type: Exploration
 Drilling Method: Percussion
 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): 190 Metres
 Hole Diameter: 6.5 In Millimetres

 
 Log Formation:
No.From (m)To (m) Log Formation
1.0 2Surface vegetation: grass and shrub. Dark-grey Topsoil & dull (dirty) cream calcrete.
2.0 2
3.2 8Grey - orange to cream yellowish calcrete.
4.2 8
5.8 17Pale orange Silcrete (fine grained) with cream-yellow Sandy calcrete.
6.8 17
7.17 35Pale-orange & white Sandy calcrete.
8.17 35
9.35 46Dark-red medium graiined Sandstone (poorly consolidated) colour index increases downward.
10.35 46
11.46 60Very hard red-brown coarse grained (matrix free) Sandstone with "dirty" weathering/oxidation (quartzite-like) chips. Water struck at 60m.
12.46 60
13.60 74Grey-red- brown fine grained Sandstone.
14.60 74
15.74 86Grey Sandstone with large (very coarse) up to 10mm size rounded quartz pebbles to 80m. Possibe gravel layer(s) within Sandstone.
16.74 86
17.86 180Mixture of grey & red-brown siltstone with some grey intercalations. Colour gradually changes to brown then orange-brown towards 112 - 115m then greyish at 120m.
18.86 180
19.180 190Grey siltstone. Note the mixture of colour grey & dark-grey. Some chips show dark laminations. E.O.H at 190m in grey siltstone.
20.180 190

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