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Exploration Borehole

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 Borehole Number: 105/12/X003/H1

 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL51/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -20.55253 , 24.28101
 Location: Kweedom

 Start Drill: 1900-01-02
 End Drill: 1900-01-02
 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): 180 Metres
 Hole Diameter: N/A

 Log Formation:
No.From (m)To (m) Log Formation
1.0 2Residual Topsoil.
2.2 8Lake sediments -calcretised Sandy lake sediments, hosting tabular trace fossils (planelites).
3.8 24Silcritised Sandy lake sediments (with planelites) glauconitic in part.
4.24 29Green mudstone,glauconitic.
5.29 37Green mudstone.
6.37 39Evaporite deposits (gypsum clusters).
7.39 60Evaporite deposits(gypsum/dolomite clusters).
8.60 65Green mudstone.
9.65 147Evaporite deposits (gypsum and dolomite)intercalated with dark grey carbonaceous Shale.the Shale becomes pyritic with depth.
10.147 159Evaporite deposits(as above) but becoming increasingly Sandy with depth.
11.159 180Karoo bslt - melanocratic, fine grained massive.

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