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 12.54 1.2 g/t
U 4A_MICP 348 30 ppm
U XRF 362 31 ppm
S Combustion/LECO 1.34 0.063 %
S 4A_MICP 1.36 0.12 %
LOI LOI 1.53 0.15 %
SG SG 2.75 0.22 Dimensionless
Ag 4A_MICP 2 0.7 ppm
Al 4A_MICP 1.47 0.19 %
Al XRF 1.60 0.10 %
As 4A_MICP 93 10 ppm
Ba 4A_MICP 60 3 ppm
Be 4A_MICP 0.5 0.1 ppm
Bi 4A_MICP 2 0.2 ppm
Ca 4A_MICP 194 23 ppm
Cd 4A_MICP 0.3 0.08 ppm
Ce 4A_MICP 22 3 ppm
Co 4A_MICP 49 5 ppm
Cs 4A_MICP 5 0.3 ppm
Cu 4A_MICP 37 7 ppm
Fe XRF 2.00 0.034 %
Ga 4A_MICP 4 1 ppm
Hf 4A_MICP 2 0.2 ppm
In 4A_MICP 0.03 0.03 ppm
K 4A_MICP 1958 126 ppm
La 4A_MICP 11 0.8 ppm
Li 4A_MICP 7 1 ppm
Mg 4A_MICP 1198 98 ppm
Mn 4A_MICP 108 12 ppm
Mo 4A_MICP 2 0.2 ppm
Na 4A_MICP 592 71 ppm
Nb 4A_MICP 11 2 ppm
Ni 4A_MICP 198 18 ppm
Pb 4A_MICP 166 10 ppm
Rb 4A_MICP 10 1 ppm
Sb 4A_MICP 2 0.8 ppm
Sc 4A_MICP 4 1 ppm
Sr 4A_MICP 17 1 ppm
Te 4A_MICP 0.1 0.05 ppm
Th 4A_MICP 19 3 ppm
Ti 4A_MICP 360 65 ppm
Ti XRF 638 41 ppm
Tl 4A_MICP 0.2 0.04 ppm
V 4A_MICP 15 2 ppm
W 4A_MICP 0.5 0.1 ppm
Y 4A_MICP 17 2 ppm
Zn 4A_MICP 113 17 ppm
Zr 4A_MICP 74 6 ppm
Major Oxides
Certified Concentrations (at two Standard Deviations)
Analyte Method µ 2s ± Unit
U3O8 4A_MICP 0.041 0.004 %
U3O8 XRF 0.043 0.004 %
Al2O3 XRF 3.02 0.18 %
Fe2O3 XRF 2.87 0.048 %
TiO2 XRF 0.11 0.007 %
