Borehole Number: |
Coordinates Type: WGS 84 |
Coordinates Format: Decimal Degrees (DD) |
Coordinates: -21.971417 , 28.538556 |
Location: Bobonong |
Location Description: BOBONONG-BOBIRWA SUN DISTRICT |
Start Drill: 2008-06-18 |
End Drill: 2008-06-28 |
Borehole Type: Groundwater |
Drilling Method: Percussion |
Drilling Rig(s): N/A |
Sample Type: Water |
Depth of Surface Casing: N/A |
Hole Inclination: N/A |
Estimated Yield: 13.8 M3/hr |
Static Water Level: N/A |
Borehole Water Strike: 249 Metres |
End of Hole (Depth): 303 Metres |
Hole Diameter: 203 Millimetres |
Log Formation: |
No. | From (m) | To (m) | Log Formation |
---|
1. | 0 | 10 | Basalt, med green, weathered |
2. | 10 | 44 | Basalt, med grained, grey to light grey |
3. | 44 | 47 | Basalt, med grained. pink and gray |
4. | 47 | 68 | Basalt, medium grained, light grey |
5. | 68 | 95 | Basalt, purple grey, dark grey |
6. | 95 | 247 | Basalt, med grained, pink grey, purple |
7. | 247 | 249 | Sandstone, fine, white soft, friable |
8. | 249 | 251 | Dolerite, medium grained. black white |
9. | 251 | 254 | Sandstone, medium grained, white |
10. | 254 | 269 | Dolerite, black, medium grained |
11. | 269 | 272 | Sandstone, white, med grained |
12. | 272 | 303 | Dolerite, med, black |
© Botswana Geoscience Institute 2025 | www.bgi.org.bw | Disclaimer