| Description: OREAS 47 is an augmented Canadian glacial basal till sourced from outside of Chibougamau, Quebec. The till composition reflects the geochemistry of the surrounding Archean greenstone belts and felsic intrusives with minor additions of various ores (PGE + REE + Li) and concentrates (base metals) to achieve anomalous concentration levels. Cobbles were removed prior to processing and all material has undergone sterilisation. A pure glacial till is also available (see OREAS 46). Twenty commercial analytical laboratories participated in the following program: - Gold by 25-50g fire assay;
- Instrumental neutron activation analysis for Au on 20 x 85mg subsamples to confirm homogeneity (1 laboratory only);
- Gold by 15-50g aqua regia digestion;
- Fusion with full ICP-OES and ICP-MS elemental suites;
- Thermogravimetry for LOI at 1000° C;
- Four acid digestion for full ICP-OES and ICP-MS elemental suites;
- Aqua regia digestion using 0.15 to 50g sample weights for full ICP-OES and ICP-MS elemental suites.
Download Certificate OREAS47 Download DataPack OREAS47 | Analyte | Certified Value | 1SD | 95% CI Low | 95% CI High | Method |
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| Ag, Silver (ppm) | 0.13 | 0.019 | 0.116 | 0.144 | 4-Acid Digestion | | Al, Aluminium (wt.%) | 6.25 | 0.183 | 6.17 | 6.33 | 4-Acid Digestion | | As, Arsenic (ppm) | 9.57 | 0.435 | 9.4 | 9.73 | 4-Acid Digestion | | Ba, Barium (ppm) | 485 | 14 | 479 | 491 | 4-Acid Digestion | | Be, Beryllium (ppm) | 1.04 | 0.11 | 0.99 | 1.08 | 4-Acid Digestion | | Bi, Bismuth (ppm) | 0.17 | 0.014 | 0.17 | 0.18 | 4-Acid Digestion | | Ca, Calcium (wt.%) | 2.31 | 0.056 | 2.29 | 2.33 | 4-Acid Digestion | | Cd, Cadmium (ppm) | 0.5 | 0.036 | 0.48 | 0.51 | 4-Acid Digestion | | Ce, Cerium (ppm) | 55 | 2 | 54 | 55 | 4-Acid Digestion | | Co, Cobalt (ppm) | 53 | 1.9 | 52 | 54 | 4-Acid Digestion | | Cr, Chromium (ppm) | 82 | 12 | 76 | 89 | 4-Acid Digestion | | Cs, Caesium (ppm) | 2.09 | 0.079 | 2.05 | 2.13 | 4-Acid Digestion | | Cu, Copper (ppm) | 159 | 4 | 158 | 160 | 4-Acid Digestion | | Dy, Dysprosium (ppm) | 2.12 | 0.118 | 2.07 | 2.17 | 4-Acid Digestion | | Er, Erbium (ppm) | 1.18 | 0.088 | 1.12 | 1.23 | 4-Acid Digestion | | Eu, Europium (ppm) | 1.03 | 0.08 | 0.98 | 1.08 | 4-Acid Digestion | | Fe, Iron (wt.%) | 2.78 | 0.067 | 2.75 | 2.8 | 4-Acid Digestion | | Ga, Gallium (ppm) | 14.1 | 0.65 | 13.7 | 14.4 | 4-Acid Digestion | | Gd, Gadolinium (ppm) | 3.01 | 0.249 | 2.88 | 3.14 | 4-Acid Digestion | | Hf, Hafnium (ppm) | 1.87 | 0.173 | 1.79 | 1.94 | 4-Acid Digestion | | Ho, Holmium (ppm) | 0.41 | 0.024 | 0.39 | 0.42 | 4-Acid Digestion | | In, Indium (ppm) | 0.055 | 0.006 | 0.052 | 0.057 | 4-Acid Digestion | | K, Potassium (wt.%) | 1.18 | 0.029 | 1.17 | 1.19 | 4-Acid Digestion | | La, Lanthanum (ppm) | 30.1 | 1.23 | 29.6 | 30.6 | 4-Acid Digestion | | Li, Lithium (ppm) | 42.5 | 2.38 | 41.3 | 43.7 | 4-Acid Digestion | | Lu, Lutetium (ppm) | 0.15 | 0.02 | 0.14 | 0.16 | 4-Acid Digestion | | Mg, Magnesium (wt.%) | 0.979 | 0.022 | 0.97 | 0.987 | 4-Acid Digestion | | Mn, Manganese (wt.%) | 0.051 | 0.002 | 0.05 | 0.052 | 4-Acid Digestion | | Mo, Molybdenum (ppm) | 12.9 | 0.44 | 12.7 | 13.1 | 4-Acid Digestion | | Na, Sodium (wt.%) | 2.61 | 0.057 | 2.59 | 2.63 | 4-Acid Digestion | | Nb, Niobium (ppm) | 17 | 0.84 | 16.5 | 17.5 | 4-Acid Digestion | | Nd, Neodymium (ppm) | 24.3 | 1.08 | 23.7 | 24.9 | 4-Acid Digestion | | Ni, Nickel (ppm) | 90 | 2.8 | 88 | 91 | 4-Acid Digestion | | P, Phosphorus (wt.%) | 0.056 | 0.002 | 0.056 | 0.057 | 4-Acid Digestion | | Pb, Lead (ppm) | 284 | 10 | 279 | 289 | 4-Acid Digestion | | Pr, Praseodymium (ppm) | 6.68 | 0.245 | 6.6 | 6.77 | 4-Acid Digestion | | Rb, Rubidium (ppm) | 37.9 | 2.14 | 36.9 | 38.9 | 4-Acid Digestion | | Re, Rhenium (ppm) | 0.002 | IND | IND | IND | 4-Acid Digestion | | S, Sulphur (wt.%) | 0.044 | 0.005 | 0.041 | 0.046 | 4-Acid Digestion | | Sb, Antimony (ppm) | 0.32 | 0.03 | 0.3 | 0.34 | 4-Acid Digestion | | Sc, Scandium (ppm) | 9.11 | 0.32 | 8.92 | 9.31 | 4-Acid Digestion | | Sm, Samarium (ppm) | 4.03 | 0.281 | 3.9 | 4.15 | 4-Acid Digestion | | Sn, Tin (ppm) | 4.3 | 0.45 | 4.11 | 4.5 | 4-Acid Digestion | | Sr, Strontium (ppm) | 408 | 17 | 400 | 415 | 4-Acid Digestion | | Ta, Tantalum (ppm) | 0.42 | 0.08 | 0.38 | 0.47 | 4-Acid Digestion | | Tb, Terbium (ppm) | 0.38 | 0.018 | 0.37 | 0.39 | 4-Acid Digestion | | Th, Thorium (ppm) | 3.86 | 0.236 | 3.76 | 3.97 | 4-Acid Digestion | | Ti, Titanium (wt.%) | 0.213 | 0.008 | 0.208 | 0.217 | 4-Acid Digestion | | Tl, Thallium (ppm) | 0.25 | 0.022 | 0.24 | 0.26 | 4-Acid Digestion | | Tm, Thulium (ppm) | 0.15 | 0.006 | 0.15 | 0.15 | 4-Acid Digestion | | U, Uranium (ppm) | 0.76 | 0.052 | 0.73 | 0.79 | 4-Acid Digestion | | V, Vanadium (ppm) | 58 | 2.1 | 57 | 59 | 4-Acid Digestion | | W, Tungsten (ppm) | 0.26 | 0.024 | 0.24 | 0.28 | 4-Acid Digestion | | Y, Yttrium (ppm) | 10.7 | 0.41 | 10.5 | 10.9 | 4-Acid Digestion | | Yb, Ytterbium (ppm) | 1.01 | 0.053 | 0.99 | 1.04 | 4-Acid Digestion | | Zn, Zinc (ppm) | 226 | 14 | 219 | 232 | 4-Acid Digestion | | Zr, Zirconium (ppm) | 63 | 7 | 60 | 66 | 4-Acid Digestion | | Ag, Silver (ppm) | 0.107 | 0.01 | 0.101 | 0.113 | Aqua Regia Digestion (sample weights 0.15-50g) | | Al, Aluminium (wt.%) | 0.81 | 0.067 | 0.775 | 0.845 | Aqua Regia Digestion (sample weights 0.15-50g) | | As, Arsenic (ppm) | 9.53 | 0.648 | 9.14 | 9.92 | Aqua Regia Digestion (sample weights 0.15-50g) | | Au, Gold (ppb) | 32 | 6 | 30 | 35 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ba, Barium (ppm) | 62 | 2.6 | 60 | 63 | Aqua Regia Digestion (sample weights 0.15-50g) | | Be, Beryllium (ppm) | 0.19 | 0.02 | 0.17 | 0.21 | Aqua Regia Digestion (sample weights 0.15-50g) | | Bi, Bismuth (ppm) | 0.15 | 0.014 | 0.14 | 0.16 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ca, Calcium (wt.%) | 0.547 | 0.056 | 0.516 | 0.579 | Aqua Regia Digestion (sample weights 0.15-50g) | | Cd, Cadmium (ppm) | 0.5 | 0.041 | 0.48 | 0.52 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ce, Cerium (ppm) | 44.7 | 3.05 | 43.2 | 46.3 | Aqua Regia Digestion (sample weights 0.15-50g) | | Co, Cobalt (ppm) | 49.9 | 3 | 48.4 | 51.4 | Aqua Regia Digestion (sample weights 0.15-50g) | | Cr, Chromium (ppm) | 30.4 | 1.96 | 29.4 | 31.4 | Aqua Regia Digestion (sample weights 0.15-50g) | | Cs, Caesium (ppm) | 1.19 | 0.062 | 1.15 | 1.22 | Aqua Regia Digestion (sample weights 0.15-50g) | | Cu, Copper (ppm) | 160 | 6 | 157 | 163 | Aqua Regia Digestion (sample weights 0.15-50g) | | Fe, Iron (wt.%) | 1.65 | 0.125 | 1.58 | 1.71 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ga, Gallium (ppm) | 3.28 | 0.41 | 3.04 | 3.53 | Aqua Regia Digestion (sample weights 0.15-50g) | | Gd, Gadolinium (ppm) | 1.92 | 0.33 | 1.54 | 2.29 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ge, Germanium (ppm) | 0.075 | 0.011 | 0.063 | 0.086 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ho, Holmium (ppm) | 0.21 | 0.04 | 0.16 | 0.27 | Aqua Regia Digestion (sample weights 0.15-50g) | | In, Indium (ppm) | 0.037 | 0.006 | 0.033 | 0.041 | Aqua Regia Digestion (sample weights 0.15-50g) | | K, Potassium (wt.%) | 0.116 | 0.01 | 0.11 | 0.121 | Aqua Regia Digestion (sample weights 0.15-50g) | | La, Lanthanum (ppm) | 25.2 | 1.16 | 24.5 | 25.8 | Aqua Regia Digestion (sample weights 0.15-50g) | | Li, Lithium (ppm) | 8.83 | 0.89 | 8.25 | 9.42 | Aqua Regia Digestion (sample weights 0.15-50g) | | Lu, Lutetium (ppm) | 0.07 | 0.011 | 0.058 | 0.081 | Aqua Regia Digestion (sample weights 0.15-50g) | | Mg, Magnesium (wt.%) | 0.484 | 0.046 | 0.459 | 0.508 | Aqua Regia Digestion (sample weights 0.15-50g) | | Mn, Manganese (wt.%) | 0.027 | 0.002 | 0.026 | 0.028 | Aqua Regia Digestion (sample weights 0.15-50g) | | Mo, Molybdenum (ppm) | 12.7 | 0.89 | 12.3 | 13.2 | Aqua Regia Digestion (sample weights 0.15-50g) | | Na, Sodium (wt.%) | 0.091 | 0.016 | 0.081 | 0.1 | Aqua Regia Digestion (sample weights 0.15-50g) | | Nd, Neodymium (ppm) | 17.8 | 2 | 15.5 | 20 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ni, Nickel (ppm) | 80 | 4.1 | 78 | 82 | Aqua Regia Digestion (sample weights 0.15-50g) | | P, Phosphorus (wt.%) | 0.055 | 0.002 | 0.054 | 0.055 | Aqua Regia Digestion (sample weights 0.15-50g) | | Pb, Lead (ppm) | 284 | 15 | 276 | 291 | Aqua Regia Digestion (sample weights 0.15-50g) | | Pd, Palladium (ppb) | 43 | 4 | 40 | 46 | Aqua Regia Digestion (sample weights 0.15-50g) | | Pr, Praseodymium (ppm) | 5.3 | 0.261 | 4.97 | 5.63 | Aqua Regia Digestion (sample weights 0.15-50g) | | Pt, Platinum (ppb) | 26 | 2 | 24 | 27 | Aqua Regia Digestion (sample weights 0.15-50g) | | Rb, Rubidium (ppm) | 7.15 | 0.512 | 6.88 | 7.42 | Aqua Regia Digestion (sample weights 0.15-50g) | | Re, Rhenium (ppm) | 0.001 | IND | IND | IND | Aqua Regia Digestion (sample weights 0.15-50g) | | S, Sulphur (wt.%) | 0.046 | 0.004 | 0.044 | 0.048 | Aqua Regia Digestion (sample weights 0.15-50g) | | Sb, Antimony (ppm) | 0.2 | 0.03 | 0.18 | 0.22 | Aqua Regia Digestion (sample weights 0.15-50g) | | Sc, Scandium (ppm) | 3.17 | 0.54 | 2.88 | 3.47 | Aqua Regia Digestion (sample weights 0.15-50g) | | Se, Selenium (ppm) | 0.4 | IND | IND | IND | Aqua Regia Digestion (sample weights 0.15-50g) | | Sm, Samarium (ppm) | 2.66 | 0.37 | 2.25 | 3.08 | Aqua Regia Digestion (sample weights 0.15-50g) | | Sn, Tin (ppm) | 2.54 | 0.34 | 2.35 | 2.74 | Aqua Regia Digestion (sample weights 0.15-50g) | | Sr, Strontium (ppm) | 31.4 | 4.1 | 29.2 | 33.7 | Aqua Regia Digestion (sample weights 0.15-50g) | | Tb, Terbium (ppm) | 0.23 | 0.04 | 0.2 | 0.26 | Aqua Regia Digestion (sample weights 0.15-50g) | | Th, Thorium (ppm) | 3.25 | 0.211 | 3.14 | 3.36 | Aqua Regia Digestion (sample weights 0.15-50g) | | Ti, Titanium (wt.%) | 0.07 | 0.014 | 0.062 | 0.079 | Aqua Regia Digestion (sample weights 0.15-50g) | | Tl, Thallium (ppm) | 0.083 | 0.009 | 0.077 | 0.088 | Aqua Regia Digestion (sample weights 0.15-50g) | | U, Uranium (ppm) | 0.47 | 0.05 | 0.43 | 0.5 | Aqua Regia Digestion (sample weights 0.15-50g) | | V, Vanadium (ppm) | 24.7 | 2.28 | 23.4 | 25.9 | Aqua Regia Digestion (sample weights 0.15-50g) | | W, Tungsten (ppm) | 0.11 | 0.02 | 0.1 | 0.13 | Aqua Regia Digestion (sample weights 0.15-50g) | | Y, Yttrium (ppm) | 5.75 | 0.84 | 5.26 | 6.23 | Aqua Regia Digestion (sample weights 0.15-50g) | | Yb, Ytterbium (ppm) | 0.5 | 0.09 | 0.44 | 0.57 | Aqua Regia Digestion (sample weights 0.15-50g) | | Zn, Zinc (ppm) | 213 | 10 | 208 | 218 | Aqua Regia Digestion (sample weights 0.15-50g) | | Zr, Zirconium (ppm) | 6.7 | 0.93 | 6.07 | 7.33 | Aqua Regia Digestion (sample weights 0.15-50g) | | Al2O3, Aluminium(III) oxide (wt.%) | 11.96 | 0.322 | 11.79 | 12.12 | Borate / Peroxide Fusion ICP | | Ba, Barium (ppm) | 473 | 23 | 462 | 484 | Borate / Peroxide Fusion ICP | | Be, Beryllium (ppm) | 0.97 | 0.1 | 0.92 | 1.02 | Borate / Peroxide Fusion ICP | | CaO, Calcium oxide (wt.%) | 3.27 | 0.094 | 3.22 | 3.32 | Borate / Peroxide Fusion ICP | | Ce, Cerium (ppm) | 56 | 3.9 | 54 | 58 | Borate / Peroxide Fusion ICP | | Co, Cobalt (ppm) | 52 | 2.5 | 49 | 55 | Borate / Peroxide Fusion ICP | | Cr2O3, Chromium(III) oxide (ppm) | 165 | 16 | 157 | 173 | Borate / Peroxide Fusion ICP | | Cs, Caesium (ppm) | 2.01 | 0.1 | 1.96 | 2.05 | Borate / Peroxide Fusion ICP | | Dy, Dysprosium (ppm) | 2.11 | 0.102 | 2.06 | 2.15 | Borate / Peroxide Fusion ICP | | Er, Erbium (ppm) | 1.16 | 0.047 | 1.14 | 1.17 | Borate / Peroxide Fusion ICP | | Eu, Europium (ppm) | 1.01 | 0.047 | 0.98 | 1.03 | Borate / Peroxide Fusion ICP | | Fe2O3, Iron(III) oxide (wt.%) | 3.97 | 0.1 | 3.92 | 4.02 | Borate / Peroxide Fusion ICP | | Ga, Gallium (ppm) | 14.1 | 0.9 | 13.5 | 14.7 | Borate / Peroxide Fusion ICP | | Gd, Gadolinium (ppm) | 2.83 | 0.142 | 2.77 | 2.89 | Borate / Peroxide Fusion ICP | | Hf, Hafnium (ppm) | 4.1 | 0.319 | 3.92 | 4.29 | Borate / Peroxide Fusion ICP | | Ho, Holmium (ppm) | 0.42 | 0.021 | 0.4 | 0.43 | Borate / Peroxide Fusion ICP | | K2O, Potassium oxide (wt.%) | 1.42 | 0.044 | 1.4 | 1.44 | Borate / Peroxide Fusion ICP | | La, Lanthanum (ppm) | 30.9 | 1.98 | 29.8 | 32 | Borate / Peroxide Fusion ICP | | Lu, Lutetium (ppm) | 0.16 | 0.009 | 0.16 | 0.16 | Borate / Peroxide Fusion ICP | | MgO, Magnesium oxide (wt.%) | 1.67 | 0.047 | 1.65 | 1.7 | Borate / Peroxide Fusion ICP | | MnO, Manganese oxide (wt.%) | 0.064 | 0.003 | 0.062 | 0.065 | Borate / Peroxide Fusion ICP | | Mo, Molybdenum (ppm) | 12.7 | 1.18 | 12.3 | 13.2 | Borate / Peroxide Fusion ICP | | Na2O, Sodium oxide (wt.%) | 3.47 | 0.059 | 3.44 | 3.49 | Borate / Peroxide Fusion ICP | | Nb, Niobium (ppm) | 17.9 | 1.09 | 17.2 | 18.6 | Borate / Peroxide Fusion ICP | | Nd, Neodymium (ppm) | 24 | 1.12 | 23.4 | 24.6 | Borate / Peroxide Fusion ICP | | Ni, Nickel (ppm) | 91 | 6.3 | 86 | 97 | Borate / Peroxide Fusion ICP | | P2O5, Phosphorus(V) oxide (wt.%) | 0.129 | 0.012 | 0.124 | 0.133 | Borate / Peroxide Fusion ICP | | Pr, Praseodymium (ppm) | 6.58 | 0.233 | 6.46 | 6.71 | Borate / Peroxide Fusion ICP | | Rb, Rubidium (ppm) | 37.6 | 1.81 | 36.6 | 38.6 | Borate / Peroxide Fusion ICP | | Sc, Scandium (ppm) | 9.27 | 0.521 | 8.67 | 9.86 | Borate / Peroxide Fusion ICP | | SiO2, Silicon dioxide (wt.%) | 72.78 | 0.995 | 72.34 | 73.23 | Borate / Peroxide Fusion ICP | | Sm, Samarium (ppm) | 4.01 | 0.138 | 3.94 | 4.07 | Borate / Peroxide Fusion ICP | | Sn, Tin (ppm) | 6.14 | 0.58 | 5.9 | 6.38 | Borate / Peroxide Fusion ICP | | Sr, Strontium (ppm) | 402 | 12 | 395 | 408 | Borate / Peroxide Fusion ICP | | Ta, Tantalum (ppm) | 0.46 | 0.1 | 0.41 | 0.51 | Borate / Peroxide Fusion ICP | | Tb, Terbium (ppm) | 0.39 | 0.018 | 0.38 | 0.4 | Borate / Peroxide Fusion ICP | | Th, Thorium (ppm) | 3.84 | 0.205 | 3.75 | 3.93 | Borate / Peroxide Fusion ICP | | TiO2, Titanium dioxide (wt.%) | 0.379 | 0.012 | 0.373 | 0.385 | Borate / Peroxide Fusion ICP | | Tm, Thulium (ppm) | 0.17 | 0.012 | 0.16 | 0.17 | Borate / Peroxide Fusion ICP | | U, Uranium (ppm) | 0.79 | 0.038 | 0.76 | 0.81 | Borate / Peroxide Fusion ICP | | V, Vanadium (ppm) | 61 | 4.1 | 59 | 63 | Borate / Peroxide Fusion ICP | | W, Tungsten (ppm) | 1 | IND | IND | IND | Borate / Peroxide Fusion ICP | | Y, Yttrium (ppm) | 11.6 | 0.52 | 11.3 | 11.9 | Borate / Peroxide Fusion ICP | | Yb, Ytterbium (ppm) | 1.08 | 0.058 | 1.05 | 1.1 | Borate / Peroxide Fusion ICP | | Zn, Zinc (ppm) | 217 | 13 | 206 | 229 | Borate / Peroxide Fusion ICP | | Zr, Zirconium (ppm) | 161 | 13 | 154 | 169 | Borate / Peroxide Fusion ICP | | Au, Gold (ppb) | 44 | 3 | 43 | 45 | Pb Fire Assay | | Pd, Palladium (ppb) | 44 | 3 | 41 | 47 | Pb Fire Assay | | Pt, Platinum (ppb) | 29 | 2 | 27 | 31 | Pb Fire Assay | | LOI1000, Loss On Ignition @1000°C (wt.%) | 1.02 | 0.22 | 0.88 | 1.15 | Thermogravimetry |
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