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Exploration Borehole


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 Borehole Number: 105/25/K003/1A/NDB

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL31/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -22.70467 , 27.884321
 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 1Topsoil
2.1 3Mixture of Topsoil, Silcretes & basement fragments.
3.3 13Small dark blue, featuresless fragments of kimberlite. Large portion of pink felsic basement intercalated with grey siliceous crystalline basement.
4.13 18TKB
5.18 32Rare kimberlite fragments show rounded dark brown micas (phlogopites).
6.32 44Kimberlite, blue, featureless. Minor portion of chips. Occasional chips contain phlogopite micas. Majority of chips of pink felsic basement intercalated with grey crystalline siliceous material.
7.44 50TKB
8.50 75Kimberlite featureless, consists of minor portion of chips. Majority of chips consists of pink basement intercalated with grey crystalline siliceous material.
9.75 80TKB
10.80 97Kimberlite featureless & makes up minor portion f chips. Major portion consists of pink basement intercalated with grey crystalline siliceous material.
11.97 110TKB

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