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 Borehole Number: 105/25/K003/1A/H11

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL31/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -22.70406 , 27.883902
 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 1Brown Topsoil.
2.1 2Orange/yellow Clays becoming greener down to 7m - calcretized kimberlite - remnant chips are highly weathered brown. Includes some 2 degrees iron stained qtz basement rubble.
3.2 67m - predominantly hard calcrete.
4.6 9Predominantly yellow/green to green kimberlitic Clays with some remnant brown highly weathered kimberlite and abundant inclusions of weathered foliated brown qtz mica - Schist, quartz feldspathic gneiss, Amphiboliteibolite and pink k-fspar.
5.9 27Mod - weathered phlogopite bearing kimberlite breccia - inclusion rich (chlorite Schists, QF gneiss and Amphiboliteibolite) visually confuring. Can only gneiss at 50% k 50% inclusions.
6.27 32Notable abundance of phlogopite.
7.32 39Predominantly green/brown micaceous Schist shattered xenolith.
8.39 47Variuosly inclusion content, fresh, phlogopite bearing kimberlite breccia. Inclusions of Amphiboliteibolite pink gneiss, k-fspar, quartz, qtz - mica Schist and chlorite Schist 20% - 80% inclusions.
9.47 63Pink felsic gneiss - xenolith.
10.63 7848-78m breccia kimberlite, difficult to define - generally chaotic. Oten difficult to separate kimberlite from various dark grey Schist. Inclusions variable from almost 100% to 5% micaceous Schist, k-fspar gneiss, chlorite Schist.
11.78 81Felsic gneiss.
12.81 9780-97 highly weathered - drill product is predom, dark grey - green Clays Amphiboliteibolite.
13.97 101Qtz biotite gneiss.
14.101 110100% phlogopite rich & macrocrystic fresh hypabyssal kimberlite. Nice to see such comincing kimberlite for a change.

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