Picture Not Available
Welcome | Search Borehole BGI | Exploration Borehole

Exploration Borehole

Print PDF
 Borehole Number: 105/21/X010

 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL78/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -23.175716 , 22.35512
 Location: Ghanzi

 Start Drill: N/A
 End Drill: N/A
 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: N/A
 End of Hole (Depth): N/A
 Hole Diameter: N/A

 Log Formation:
No.From (m)To (m) Log Formation
1.0 55m Off white- light grey nodular Sandy calcrete.
2.5 24Very poor chip recovery- generally Sands and calcrete some worm tubes also seen.
3.24 2827m Limonitic poorly sorted calcareous Sandstone.
4.28 3030- Calcareous Sandstone- becoming light grey with small amounts of Silcrete.
5.30 34Light grey becoming pink mottled calcareous Sandstone (+ with small amounts of Silcrete).
6.34 4436m Light grey calc Sandstone.
7.44 4645 As above with Silcrete.
8.46 5048m Light grey pink- calc Sandstone.
9.50 6051m Dominantly pink (+ light grey) calc Sandstone. Coarse grained occasionally fractured, occ limonitic, occ Conglomerateeratic.
10.60 76Dominantly pink- light grey coarse grained calcareous Sandstone, fractured and occasionally Conglomerateeratic.
11.76 7877m Dominantly light grey- poorly sorted calc Sandstone.
12.78 8680- Buff brown- light grey calc Sandstone.
13.86 9088- Pink- mottled pink/white calc Sandstone.
14.90 96Light grey mottled pink occ off white calc Sandstone.
15.96 9898 As above with some red/brown Silcrete.
16.98 102100 Off white light grey calc Sandstone.
17.102 116104- Slightly limonitic otherwise very homogenous.
18.116 120118- Light grey- pale pink slightly mottled calc Sandstone.
19.120 124Light grey- pale pink calcareous Sandstone very homogenous.
20.124 130125 Light pink homogenous calc Sandstone.
21.130 138131 Light grey homogenous calc Sandstone.
22.138 148139- Some Silcrete.
23.148 150148 Limonitic staining on light grey dirty calc Sandstone.
24.150 154Pink calcareous Sandstone.
25.154 156156- Very poorly sorted calc Sandstone.
26.156 157KAROO 157m- Light grey- pale pink- clean siltstone (to very fine Sandstone).
27.157 158158- becoming a gritty Sandstone.
28.158 164161- Conglomerateeratic pink Sandstone, with very poor sorting and angular qtz grains.
29.164 165165- with siltstone.
30.165 172166- Dominantly pale pink/grey finely laminated siltstone.
31.172 180173- becoming dark grey.
32.180 190Grey- dark grey finely laminated siltstone.
33.190 196191- Dark grey- green/black crystalline dolerite only slightly wthrd.
34.196 210198 Becoming quite coarse dolerite.

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