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Exploration Borehole


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 Borehole Number: 105/17/X547/H01

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL57/98
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -21.21221 , 24.38384
 Location: Orapa

 
 Start Drill: 2004-09-08
 End Drill: 2004-09-09
 Borehole Type: Exploration
 Drilling Method: Percussion & Core
 Sample Type: Core & Chips
 Depth of Surface Casing: N/A
 Azimuth: Degrees
 Hole Inclination: -90 Degrees
 Collar Elevation: 926 Metres
 Borehole Water Strike: N/A
 End of Hole (Depth): 143 Metres
 Hole Diameter: 203 Millimetres

 
 Log Formation:
No.From (m)To (m) Log Formation
1.0 20Cream-white, calcrete & fine grained calcretised Sandstone.
2.20 40Pale-green-light-grey, silcretised Sandstone (pan sediments). Pale-green , colour redness with depth.
3.40 51Light-grey, silcretised Sandstone, silcretisation redness with depth. Light-brown, fine medium grained moderately sorted Sandstone.
4.51 63Light-grey to pale-yellow, siltstone.
5.63 72Reddish-brown clay rich, weathered igneous rock (basalt).
6.72 79Reddish-brown, weathered Basalt???
7.79 93Light-grey, fine grained, moderately sorted, micaceous Sandstone becoming loosely consolidated downwards..
8.93 95Pale green-light, fine grained moderately sorted Sandstone.
9.95 108This unit becomes coarser towards its base.
10.108 112Grey medium-coarse grained moderately-poorly sorted Sandstone.
11.112 115Reddish-brown-grey, fine grained weathered (at the top) igneous rock becoming coarse crystalline (plagiaclase?) Gabbro?
12.115 143Dark-grey, medium grained slightly coarse crystalline ( plagioclase feldspars???) Igneous Rock GABBRO ??? E.O.H.

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