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 Borehole Number: 105/25/K003/1A/H10

 
 Prospecting Company: De Beers Holdings Botswana
 Prospecting License No.: PL31/88
 Coordinates Type: WGS 84
 Coordinates Format: Decimal Degrees (DD)
 Coordinates: -22.70478 , 27.884312
 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
1.2 5Kimberlitic clay with pink fsp gneiss + quartzite chips.
2.5 6Kimberlite breccia.
3.6 8Predominantly 100% inclusions with no kimberlitic clay - xenolith? Chips of felsic gneiss and minor pink fsp gneiss and quartzite.
4.8 29Green kimberlitic clay & 20% pf gneiss chips.
5.29 31Aphanitic, phlogopite bearing blue kimberlite 40%?
6.31 3350% kimberlite, 50% pink fsp gneiss + Amphiboliteibolite.
7.33 3990% kimberlite, 10% pfs gneiss + Amphibolite.
8.39 41Kimberlite presence indicate by green clay coatings to grains + chips. Inclusions predominantly of pink fp gneiss and Amphiboliteibolite.
9.41 55Cubic xtals of calcite observed.
10.55 5770% blue kimberlite, inclusions of pink fsp gneiss.
11.57 6090% kimberlite + kimberlite clay.
12.63 67Phlogopites observed in k.clay.
13.67 7160% kimberlite with phlogopites.
14.71 75Inclusions of quartz - fsp - biotite Schist, Amphiboliteibolite mostly clay in sample.
15.75 79Qz - fsp - biot - Schist, pink gneiss. Qtz chip of kimberlite exhibits both a partially decomposed olivire (1mm) and a phlogopite.
16.79 8570% kimberlite clay.
17.85 8980% fresher kimberlite, k.clay content 1cm.
18.89 91Wet sample, numerous inclusions of pink fsp gneiss, quartzite, quartz inclusion = 80% .
19.91 9570 inclusions, kimb mainly clay.
20.95 101Phlog - bearing blue kimberlite 40%.
21.101 10790% kimberlite - including clay.
22.107 110Blue kimberlite with inclusions of felsic gneiss, pink - fsp - gneiss, pink - fsp - gneiss Amphiboliteibolite.
23.110 111Kimberlite breccia.

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