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Exploration Borehole

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 Borehole Number: 105/25/K003/1A/NDT

 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL31/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -22.704878 , 27.881902
 Location: Lerala

 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 2Brown clayey Topsoil.
2.2 5Cream/yellow coloured nodular silic/calcrete in some basement gneiss, qtz and feldspar frag.
3.5 10Nodular silic/calcrete with highly weathered kaolimised QF gneiss and moderately fresh chlorite QF gneiss. Highly decomposed gneiss falls apart in water.
4.10 13Poorly calcretised Qf gneiss.
5.13 21Fresh to moderately fresh grey qtz - biotite Schist veined with pink feldspar and quartz.
6.21 26Qtz - bit Schist mixed with fine grained grey, chewable falc - chlorite Schist veined with pink feldspar and quartz.
7.26 2826-28m 50% brick red/brown weathered Schist.
8.28 30Mixed fine grey qtz - bt Schist and Amphiboliteibolite.

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