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Exploration Borehole

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 Borehole Number: 105/25/K003/1A/DDC

 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL31/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -22.704458 , 27.883196
 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 13.7No core recovered.
2.13.7 28.15Weathered kimberlite breccia. Est. 20-30% inclusions.
3.28.15 82.5Slightly weathered to fresh polymict, matrix supported kimberlite breccia. Point inclusions 31-47%.
4.82.5 115.5Oligomict matrix supported kimberlite breccia. Not as colourful as 28.15 to 82.5m. Est. 2o-3o% inclusions of qtz-chl Schist?
5.115.5 126.2Almost inclusion free hypabyssal kimberlite.
6.126.2 172Clast supported polymict kimberlite breccia + 90% inclusions.
7.172 174Oligomict clast supported kimberlite breccia.
8.174 188.5Well foliated qtz- biotite gneiss. No brecciation.

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