Picture Not Available
Welcome | Search Borehole BGI | Exploration Borehole

Exploration Borehole


Print PDF
 
 Borehole Number: 105/17/X903/H01

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL107/96
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -21.467106 , 25.477623
 Location: Orapa

 
 Start Drill: 2005-02-01
 End Drill: 2005-02-01
 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: 1006 Metres
 Borehole Water Strike: 81 Metres
 End of Hole (Depth): 125 Metres
 Hole Diameter: 165 Millimetres

 
 Log Formation:
No.From (m)To (m) Log Formation
1.0 1Dark brown fine grained Sand.
2.1 2Dark yellow to creamish Sand mixed of Silcrete.
3.2 9Light brown creamish, highly competent Silcrete + 10% calcrete.
4.9 10Red brown weathered basalt plus vein quartz.
5.10 11Dark grey weathered basalt comprising vein quartz.
6.11 13Mediun grey basalt mixed of abundant vein quartz.
7.13 16Dark red brown to greenish amygdaloidales basalt, moderate competent.
8.16 19Dark grey fresh basalt containing abundant vein quartz (highly competent).
9.19 23Light brown medium competent weathered basalt comprising few quartz.
10.23 26Red brown to grey fresh competent basalt.
11.26 30dark red brown amygdaloidale basalt with quartz rich.
12.30 33Red brown to greyish oxidised basalt comprising abundant green minerals.
13.33 34Dark brown quartz rich oxidised basalt.
14.34 36Red brown oxidised basalt containing green minerals.
15.36 37Oxidised basalt comprising green minerals.
16.37 40Dark brown greenish fresh basalt.
17.40 42Dark grey fresh basalt with abundant greenish minerals.
18.42 49Dark grey greenish fresh basalt containing few green minerals.
19.49 50Red brown to grey amygdaloidale basalt comprising quartz.
20.50 53dark grey fresh basalt consist of vein quartz, amygdal and green minerals.
21.53 56Dark grey fresh basalt containing green minerals.
22.56 59Dark grey to brown amygdaloidal fine grained fresh basalt.
23.59 66dark grey greenish fine grained fresh basalt, green minerals observed.
24.66 67Dark grey greenish fresh amygdaloidal basalt.
25.67 68dark red brown fresh amygdaloidal basalt.
26.68 71Dark brown competent fresh basalt.
27.71 80Dark grey greenish fresh basalt (highly competent).
28.80 81Dark brown blackish fresh basalt.
29.81 84Red brown amygdaloidal oxidised basalt.
30.84 86Red brown oxidised basalt containing green minerals and few amygdals.
31.86 89Dark grey fresh basalt comprising blackish and greenish minerals with quartz.
32.89 91Red brown oxidised amygdaloidal basalt.
33.91 95dark grey to greenish fresh competent basalt.
34.95 97dark greenish fresh competent basalt.
35.97 99Red brown blackish fresh competent basalt.
36.99 100Dark green blackish fresh competent basalt.
37.100 101Red brown oxidised basalt medium competent.
38.101 102Red brown oxidised basalt comprising quartz.
39.102 104Light red medium grained Sandstone.
40.104 110Light brown fine grained weathered Sandstone.
41.110 125Light orange fine grained weathered basalt.

© Botswana Geoscience Institute 2022 | www.bgi.org.bw | Disclaimer