OREAS 45P

Multi-element soil standard OREAS 45P was prepared from a sample of ferruginous soil, containing anomalous levels of precious and base metals, and a barren soil sample. The anomalous sample was obtained from soil developed over a Ni-Cu-PGE mineralised contact between gabbro and pyroxenite the Southern Murchison region of Western Australia while the barren sample was taken from an in situ layer of mature soil developed over early Tertiary olivine basalt in outer eastern Melbourne, Victoria, Australia.

Analyte Certified Value 1SD 95% Confidence Limits Low 95% Confidence Limits High Method
Au, Gold (ppb) 55 2 50 60 Pb Fire Assay
Ni, Nickel (ppm) 385 15 369 401 4-Acid Digestion
Cu, Copper (ppm) 749 17 740 759 4-Acid Digestion
Pd, Palladium (ppb) 55 3 53 58 Pb Fire Assay
Pt, Platinum (ppb) 77 6 71 81 Pb Fire Assay
LOI1000, Loss On Ignition @1000°C (wt.%) 11.19 0.190 10.99 11.39 Thermogravimetry
Al, Aluminium (wt.%) 6.82 0.105 6.71 6.92 Borate / Peroxide Fusion ICP
Ba, Barium (ppm) 281 6 277 284 Borate / Peroxide Fusion ICP
C, Carbon (wt.%) 2.36 0.165 2.20 2.52 Borate / Peroxide Fusion ICP
Ca, Calcium (wt.%) 0.300 0.005 0.299 0.301 Borate / Peroxide Fusion ICP
Ce, Cerium (ppm) 48.9 1.60 46.6 51.1 Borate / Peroxide Fusion ICP
Cr, Chromium (wt.%) 0.114 0.005 0.110 0.118 Borate / Peroxide Fusion ICP
Dy, Dysprosium (ppm) 4.10 0.200 3.90 4.30 Borate / Peroxide Fusion ICP
Er, Erbium (ppm) 2.20 0.100 2.10 2.30 Borate / Peroxide Fusion ICP
Eu, Europium (ppm) 1.16 0.050 1.07 1.24 Borate / Peroxide Fusion ICP
Fe, Iron (wt.%) 19.22 0.145 19.09 19.36 Borate / Peroxide Fusion ICP
Gd, Gadolinium (ppm) 4.00 0.200 3.70 4.20 Borate / Peroxide Fusion ICP
Ho, Holmium (ppm) 0.78 0.045 0.72 0.84 Borate / Peroxide Fusion ICP
K, Potassium (wt.%) 0.350 0.010 0.340 0.360 Borate / Peroxide Fusion ICP
La, Lanthanum (ppm) 24.8 1.05 23.7 25.9 Borate / Peroxide Fusion ICP
Lu, Lutetium (ppm) 0.31 0.020 0.30 0.32 Borate / Peroxide Fusion ICP
Mg, Magnesium (wt.%) 0.220 0.010 0.210 0.230 Borate / Peroxide Fusion ICP
Mn, Manganese (wt.%) 0.127 0.010 0.121 0.133 Borate / Peroxide Fusion ICP
Na, Sodium (wt.%) 0.081 0.005 0.076 0.086 Borate / Peroxide Fusion ICP
Nb, Niobium (ppm) 24.0 1.00 22.0 25.0 Borate / Peroxide Fusion ICP
Nd, Neodymium (ppm) 21.0 0.65 19.8 22.3 Borate / Peroxide Fusion ICP
P, Phosphorus (wt.%) 0.047 0.005 0.044 0.050 Borate / Peroxide Fusion ICP
Pr, Praseodymium (ppm) 5.42 0.210 4.90 5.90 Borate / Peroxide Fusion ICP
Rb, Rubidium (ppm) 23.0 0.70 22.3 23.8 Borate / Peroxide Fusion ICP
S, Sulphur (wt.%) 0.030 0.000 0.027 0.033 Borate / Peroxide Fusion ICP
Si, Silicon (wt.%) 20.42 0.135 20.28 20.55 Borate / Peroxide Fusion ICP
Sm, Samarium (ppm) 4.51 0.140 4.48 4.54 Borate / Peroxide Fusion ICP
Sn, Tin (ppm) 3.10 0.300 2.70 3.40 Borate / Peroxide Fusion ICP
Sr, Strontium (ppm) 32.6 1.30 31.6 33.4 Borate / Peroxide Fusion ICP
Tb, Terbium (ppm) 0.69 0.040 0.65 0.73 Borate / Peroxide Fusion ICP
Th, Thorium (ppm) 9.80 0.900 8.90 10.70 Borate / Peroxide Fusion ICP
Ti, Titanium (wt.%) 1.18 0.035 1.15 1.22 Borate / Peroxide Fusion ICP
Tm, Thulium (ppm) 0.32 0.025 0.28 0.35 Borate / Peroxide Fusion ICP
U, Uranium (ppm) 2.40 0.200 2.20 2.60 Borate / Peroxide Fusion ICP
Y, Yttrium (ppm) 18.0 1.40 16.6 19.5 Borate / Peroxide Fusion ICP
Yb, Ytterbium (ppm) 2.10 0.150 2.10 2.20 Borate / Peroxide Fusion ICP
Zr, Zirconium (ppm) 279 14 264 294 Borate / Peroxide Fusion ICP
Ag, Silver (ppm) 0.320 0.025 0.270 0.360 4-Acid Digestion
As, Arsenic (ppm) 13.4 1.6 11.9 14.9 4-Acid Digestion
Bi, Bismuth (ppm) 0.21 0.04 0.19 0.22 4-Acid Digestion
Cd, Cadmium (ppm) < 0.20 IND IND IND 4-Acid Digestion
Co, Cobalt (ppm) 120 8 113 127 4-Acid Digestion
Cr, Chromium (ppm) 1103 51 1065 1141 4-Acid Digestion
Na, Sodium (ppm) 804 729 879 4-Acid Digestion
P, Phosphorus (ppm) 454 414 494 4-Acid Digestion
Pb, Lead (ppm) 22.0 1.00 22.0 23.0 4-Acid Digestion
Sb, Antimony (ppm) 0.92 0.12 0.83 1.01 4-Acid Digestion
Zn, Zinc (ppm) 141 6 136 146 4-Acid Digestion
Ag, Silver (ppm) 0.300 0.020 0.280 0.320 Aqua Regia Digestion
As, Arsenic (ppm) 4.20 0.70 3.50 4.90 Aqua Regia Digestion
Au, Gold (ppb) 49 4 42 56 Aqua Regia Digestion
Bi, Bismuth (ppm) 0.18 0.02 0.16 0.21 Aqua Regia Digestion
Cd, Cadmium (ppm) 0.090 0.015 0.070 0.100 Aqua Regia Digestion
Co, Cobalt (ppm) 104 6 98 111 Aqua Regia Digestion
Cr, Chromium (ppm) 873 88 787 957 Aqua Regia Digestion
Cu, Copper (ppm) 646 56 592 700 Aqua Regia Digestion
Ni, Nickel (ppm) 281 39 244 319 Aqua Regia Digestion
Pb, Lead (ppm) 19.0 1.50 17.0 20.0 Aqua Regia Digestion
Pd, Palladium (ppb) 54 14 33 75 Aqua Regia Digestion
Pt, Platinum (ppb) 72 9 57 87 Aqua Regia Digestion
Sb, Antimony (ppm) 0.38 0.07 0.30 0.46 Aqua Regia Digestion
Zn, Zinc (ppm) 122 7 116 129 Aqua Regia Digestion
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Specifications