Description
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Origin of Material
The material is from the Upper Kimberley (UK9A) reef from the Turfontein Subgroup in the Central Rand Group of the Witwatersrand Supergroup.
Approximate Mineral and Chemical Composition
The UK9A reef is predominantly silicates with the reef matrix being siliceous quartzites; the reef pebbles are mostly vein and smoky quartz pebbles with minor pyrite. Gold content is attributed to kerogen in the reef. The hanging wall of the sample is a siliceous quartzite whilst the footwall is an argillaceous quartzite.
Summary Statistics
Recommended Concentrations and Limits
(at two Standard Deviations) Certified Concentrations
Analyte Method µ 2s ± Unit
Au Pb Collection 2.09 0.28 g/t
U 4A_MICP 99 7 ppm
U XRF 99 22 ppm
S Combustion/LECO 0.71 0.07 %
S 4A_MICP 0.71 0.02 %
LOI LOI 0.99 0.1 %
Ag 4A_MICP 0.3 0.1 ppm
Al XRF 1.23 0.08 %
As 4A_MICP 39 7 ppm
Ba 4A_MICP 29 3 ppm
Be 4A_MICP 0.4 0.1 ppm
Bi 4A_MICP 0.6 0.04 ppm
Ca 4A_MICP 413 60 ppm
Ca XRF 393 101 ppm
Cd 4A_MICP 0.3 0.1 ppm
Ce 4A_MICP 18 1.98 ppm
Co 4A_MICP 25 1 ppm
Cs 4A_MICP 1 0.1 ppm
Cu 4A_MICP 27 4 ppm
Fe 4A_MICP 1.70 0.2 %
Fe XRF 1.67 0.04 %
Ga 4A_MICP 3 0.7 ppm
Hf 4A_MICP 2 0.1 ppm
K 4A_MICP 837 112 ppm
La 4A_MICP 9 1.08 ppm
Li 4A_MICP 6 2 ppm
Mg 4A_MICP 990 150 ppm
Mn 4A_MICP 152 11 ppm
Mo 4A_MICP 2 0.4 ppm
Na 4A_MICP 294 53 ppm
Ni 4A_MICP 90 4 ppm
Pb 4A_MICP 52 5 ppm
Rb 4A_MICP 4 0.35 ppm
Sb 4A_MICP 2 0.3 ppm
Sc 4A_MICP 3 0.8 ppm
Si XRF 43.72 0.4 %
Sr 4A_MICP 10 0.85 ppm
Th 4A_MICP 6 0.90 ppm
Ti 4A_MICP 782 69 ppm
Ti XRF 928 81 ppm
Tl 4A_MICP 0.1 0.02 ppm
V 4A_MICP 34 3 ppm
W 4A_MICP 0.7 0.2 ppm
Y 4A_MICP 8 0.76 ppm
Zn 4A_MICP 93 11 ppm
Zr 4A_MICP 52 4 ppm
Major Oxides
Certified Concentrations (at two Standard Deviations)
Analyte Method µ 2s ± Unit
U3O8 4A_MICP 0.012 0.0009 %
U3O8 XRF 0.012 0.003 %
Al2O3 XRF 2.33 0.1 %
Fe2O3 XRF 2.38 0.06 %
SiO2 XRF 93.10 0.6 %
TiO2 XRF 0.15 0.01 %
