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Exploration Borehole


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 Borehole Number: 105/18/X232/H01

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL4/2002
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -21.27061 , 25.55863
 Location: Goretloaga

 
 Start Drill: 2005-04-19
 End Drill: 2005-04-20
 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: 42 Metres
 End of Hole (Depth): 59 Metres
 Hole Diameter: 165 Millimetres

 
 Log Formation:
No.From (m)To (m) Log Formation
1.0 4Dark brown weathered Basalt contaminated by loose cream white weathered Calcrete.
2.4 8Dark brown, ferricretised and weathered Basalt with calcrete contaminants from above as well as abundant calcite amygdales (25%).
3.8 11Reddish brown weathered Basalt characterised by calcite amygdales.
4.11 15Greyish brown weathered Basalt with less calcite amygdales (<2%).
5.15 21Very dark greenish grey fresh and competent Basalt.
6.21 26Grey brown, fresh and competent Basalt.
7.26 39Dark greenish grey fresh and competent Basalt.
8.39 40Greyish brown competent Basalt intercalated with fine-grained Sandstone.
9.40 41Light brown, fine-grained weathered Sandstone.
10.41 46Dark brown, weathered fine-grained Sandstone, with Basalt contaminants from the overlying Karoo Basalt.
11.46 47Light brown, weathered fine-grained Sandstone.
12.47 49Dark brown, weathered fine-grained Sandstone contaminated by loose Basalt.
13.49 53Whitish yellow, weathered fine-grained Sandstone.
14.53 54Dark brown weathered, fine-grained Sandstone.
15.54 55Light brown, weathered fine-grained Sandstone.
16.55 56Reddish brown, weathered, fine-grained Sandstone.
17.56 58Cream white, weathered fine-grained Sandstone.
18.58 59Light brown, weathered fine-grained Sandstone.

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