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Exploration Borehole


	Borehole Number: 105/25/K003/1A/H2


	Prospecting Company: De Beers Holdings Botswana
	Prospecting License No.: PL31/88
	Coordinates Type: WGS 84
	Coordinates Format: Decimal Degrees (DD)
	Coordinates: -22.704432 , 27.883483
	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

Brown Topsoil.

Nodular silc/calcrete.

Predominantly yellow green Clays (3-9m) olive brown - green weathered brecciated macro - crystic kimberlite + 40% inclusions k - feldspar, Amphibolite, qtz.

9-26 predominantly green kimberlitic Clays, weathered, brecciated, brown kimberlite. Chips tend to be v.angular where chips break around surface of inclusions. This weathered brown kimberlite often has the appearance of a soft immature Sandstone. Sometime

Moderately fresh to fresh kimberlite.

Dark olive green - grey generally features, phlogopite bearing kimberlite. Other than occasional

Pale green chloritic feldspar - xenolith.

Olive green, phlogopite bearing, features kimberlite.

Green mottled, chloritic, Amphiboliteibole bearing feldspar + qtz (feldsite).

10.

Drab olive green, phlogopite bearing, featureless hypabyssal kimberlite. Phlogopite content appears to be increasing downwards, inclusions 10% kfs, qtz.

11.

85m propable xenolith, green mottled chloritised Amphiboliteibole bearing felsite.

12.

87m 80% of sample is green mottled felsite - xenolith.