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Exploration Borehole


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


	Prospecting Company: De Beers Prospecting Botswana (Pty) Ltd
	Prospecting License No.: PL31/88
	Coordinates Type: WGS 84
	Coordinates Format: Decimal Degrees (DD)
	Coordinates: -22.703636 , 27.883524
	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.

Calcretised Sand and basement fragments + some free quartz, feldspar and mica Schist.

Highly weathered brown kimberlite (difficult to distinguish from weathered Schist despite foliation in latter). Variable proportions of inclusions (95-50%) pink granite gneiss, micaceous - Amphiboliteibolite Schist, quartz.

Fresh to moderately fresh grey, greenish grey or brown grey fine grained featureless hypabyssal kimberlite - rare macrocrystic phlogopite.

Variable inclusions content 80-50% quartz, k-feldspar, Amphiboliteibolite.

Moderately fresh hypabyssal kimberlite 80-50% inclusions.

44m - no sample recorved.

Qtz and feldspar veined Amphiboliteibolite.

Amphiboliteibolite

10.

76m - water.

11.

82m - chlorite bearing feldspar and Amphiboliteibolite.

12.

Fine grained light grey featureless hypabyssal kimberlite - occasional

13.

86-88m no sample.

14.

89m - 95% inclusions.

15.

90m no sample.

16.

91m - 40% inclusions (Amphiboliteibolite).

17.

Fine light grey featureless hypabyssal kimberlite. Occasional

18.

102

Inclusions 40% to >95% of sample - predominantly Amphiboliteibolite and chloritic feldspar.

19.

102

107

95% + inclusions.

20.

107

109

108m - 90% inclusions.

21.

109

110

110m - 95% + inclusions.