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Exploration Borehole


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 Borehole Number: 105/18/X683/H01

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL001/97
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -21.488578 , 25.516931
 Location: Orapa

 
 Start Drill: 2005-06-03
 End Drill: 2005-06-06
 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: 1015 Metres
 Borehole Water Strike: 133 Metres
 End of Hole (Depth): 159 Metres
 Hole Diameter: 165 Millimetres

 
 Log Formation:
No.From (m)To (m) Log Formation
1.0 1Orange to yellowish loose fine weathered Sand
2.1 3Yellowish brown loose weathered Sand
3.3 6Light brown silcretised Sandstone.
4.6 12Reddish brown calcretised basalt with a lot of silcetise.
5.12 15Reddish brown weathered basalt with about 20% silcretised calcrete.
6.15 20Reddish brown fresh and competent basalt.
7.20 23Reddish brown fresh and competent basalt with about 5% silcretised calcite.
8.23 29Reddish brown fresh and competent basalt.
9.29 30Brownish red fresh amygdaloidal basalt.
10.30 34Brownish red fresh and competent basalt.
11.34 38Greenish brown fresh basalt.
12.38 39Greenish brown fresh basalt with about 20% reddish brown fresh basalt.
13.39 45Greenish brown fresh and competent basalt.
14.45 47Dark brown fresh amygdaloidal basalt.
15.47 51Brownish green fresh and competent basalt.
16.51 53Brownish green fresh and competent amygdaloidal basalt.
17.53 58Brownish green fresh and competent basalt with about 10% Silcrete.
18.58 59Greenish brown fresh amygdaloidal basalt with 20% Silcrete.
19.59 64Brownish green fresh basalt.
20.64 66Dark brown amygdaloidal basalt.
21.66 70Greenish brown fresh basalt.
22.70 71Dark brown fresh amygdaloidal basalt.
23.71 83Brownish green fresh basalt.
24.83 85Reddish brown amygdaloidal basalt with about 20% calcite.
25.85 86Reddish brown amygdaloidal basalt.
26.86 90Greenish brown fresh and competent amygdaloidal basalt.
27.90 95Greyish green fresh and competent basalt.
28.95 96Greyish green fresh amygdaloidal basalt.
29.96 97Greenish grey fresh basalt.
30.97 98Greenish grey fresh basalt with about 20% yellowish orange Sandstone.
31.98 103Greenish brown fresh basalt with about 10% amygdales.
32.103 104Dark brown fresh amygdaloidal basalt.
33.104 114Greenish brown fresh basalt.
34.114 126Greyish green fresh and competent basalt with pyrite grains.
35.126 128Greyish green fresh and competent basalt with about 10% reddish brown basalt.
36.128 129Greyish green ferricretised basalt.
37.129 131Greyish green fresh and competent basalt with about 30% brownish green ferricretised basalt.
38.131 133Reddish brown Sandstone with about greyish green weathered basalt.
39.133 136Dark orange fine grained Sandstone.
40.136 138Brownish orange fine grained Sandstone.
41.138 151Yellowish orange fine grained unconsolidated Sandstone.
42.151 159Light orange fine grained uncosolidated Sandstone.

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