Table 1 The concentrations of Y and REEs in the individual mineral particles.
Quartz | K-feldspar | Kaolinitic particle 01 | Kaolinitic particle 02 | Kaolinitic particle 03 | Kaolinitic particle 04 | Kaolinitic particle 05 | |
|---|---|---|---|---|---|---|---|
Y (ppm) | 7.34 | 11.5 | 74.3 | 97.5 | 72.5 | 64.4 | 72.6 |
La (ppm) | 0.03 | 8.41 | 61.4 | 224 | 182 | 195 | 83.4 |
Ce (ppm) | 2.42 | 66.9 | 629 | 773 | 30.5 | 24.7 | 262 |
Pr (ppm) | 0.28 | 1.41 | 24.1 | 60.4 | 45.4 | 48.0 | 20.2 |
Nd (ppm) | 2.73 | 6.53 | 97.1 | 203 | 161 | 163 | 76.2 |
Sm (ppm) | 0.80 | 1.58 | 28.2 | 40.2 | 29.3 | 31.1 | 16.8 |
Eu (ppm) | 0.75 | 2.72 | 5.41 | 13.1 | 9.42 | 9.76 | 6.53 |
Gd (ppm) | 1.14 | 1.88 | 26.3 | 33.6 | 24.5 | 25.3 | 17.9 |
Tb (ppm) | 0.23 | 0.32 | 4.04 | 4.22 | 3.18 | 3.01 | 2.62 |
Dy (ppm) | 1.13 | 2.24 | 23.1 | 21.6 | 17.1 | 15.3 | 14.6 |
Ho (ppm) | 0.23 | 0.37 | 4.04 | 3.70 | 3.10 | 2.60 | 2.63 |
Er (ppm) | 1.15 | 1.13 | 11.7 | 9.54 | 7.56 | 6.89 | 7.76 |
Tm (ppm) | 0.26 | 0.28 | 1.72 | 1.19 | 1.03 | 0.80 | 1.08 |
Yb (ppm) | 1.88 | 1.51 | 12.4 | 7.86 | 6.53 | 5.35 | 6.69 |
Lu (ppm) | 0.20 | 0.26 | 1.68 | 1.09 | 0.98 | 0.67 | 0.93 |
LREE (ppm) | 7.02 | 87.6 | 845 | 1314 | 458 | 472 | 465 |
LREEa (ppm) | 4.59 | 20.6 | 216 | 541 | 427 | 447 | 203 |
HREE (ppm) | 6.23 | 8.00 | 85.0 | 82.8 | 64.0 | 59.9 | 54.3 |
REE (ppm) | 13.2 | 95.6 | 985 | 1397 | 522 | 532 | 519 |
REEa (ppm) | 10.8 | 28.7 | 301 | 624 | 491 | 507 | 257 |
REY (ppm) | 20.6 | 107 | 1059 | 1494 | 594 | 596 | 592 |
LREE/HREE | 1.13 | 10.9 | 9.94 | 15.9 | 7.15 | 7.88 | 8.57 |
LREEa/HREE | 0.74 | 2.58 | 2.54 | 6.54 | 6.67 | 7.47 | 3.74 |
Y/Ho | 32.3 | 30.9 | 18.4 | 26.3 | 23.4 | 24.7 | 27.6 |
[Ce/Ce*]N | 5.94 | 4.66 | 2.43 | 6.64 | 0.34 | 0.25 | 1.53 |
[Eu/Eu*]N | 2.38 | 4.80 | 0.20 | 0.36 | 0.35 | 0.35 | 1.14 |
[La/Yb]N | 0.01 | 3.79 | 24.8 | 19.4 | 19.0 | 24.8 | 12.5 |
Micaceous particle 01 | Micaceous particle 02 | Micaceous particle 03 | Micaceous particle 04 | Hematite | Ilmenite | ||
|---|---|---|---|---|---|---|---|
Y (ppm) | 224 | 152 | 145 | 102 | 86.0 | 26.2 | |
La (ppm) | 497 | 322 | 328 | 179 | 87.4 | 19.4 | |
Ce (ppm) | 87.6 | 34.8 | 29.1 | 10.1 | 131 | 35.8 | |
Pr (ppm) | 114 | 79.6 | 78.1 | 46.6 | 22.7 | 5.0 | |
Nd (ppm) | 410 | 291 | 282 | 177 | 89.4 | 15.9 | |
Sm (ppm) | 80.3 | 53.8 | 54.3 | 35.9 | 21.9 | 4.27 | |
Eu (ppm) | 21.9 | 15.7 | 16.8 | 5.20 | 7.17 | 0.93 | |
Gd (ppm) | 64.2 | 42.9 | 46.7 | 31.4 | 21.5 | 3.7 | |
Tb (ppm) | 9.28 | 5.65 | 6.20 | 4.26 | 3.32 | 0.99 | |
Dy (ppm) | 50.4 | 31.7 | 33.4 | 22.7 | 20.5 | 7.92 | |
Ho (ppm) | 8.86 | 5.30 | 6.22 | 4.06 | 4.09 | 1.86 | |
Er (ppm) | 23.6 | 13.2 | 16.5 | 11.9 | 13.1 | 7.1 | |
Tm (ppm) | 3.21 | 1.80 | 2.40 | 1.60 | 2.18 | 1.24 | |
Yb (ppm) | 19.7 | 11.5 | 15.7 | 11.5 | 14.8 | 9.22 | |
Lu (ppm) | 2.97 | 1.62 | 2.05 | 1.59 | 2.16 | 1.45 | |
LREE (ppm) | 1211 | 797 | 788 | 454 | 359 | 81.2 | |
LREEa (ppm) | 1123 | 762 | 759 | 444 | 229 | 45.5 | |
HREE (ppm) | 182 | 114 | 129 | 89.1 | 81.7 | 33.5 | |
REE (ppm) | 1393 | 911 | 917 | 543 | 441 | 115 | |
REEa (ppm) | 1305 | 876 | 888 | 533 | 310 | 79.0 | |
REY (ppm) | 1617 | 1063 | 1063 | 645 | 527 | 141 | |
LREE/HREE | 6.64 | 7.01 | 6.10 | 5.10 | 4.40 | 2.42 | |
LREEa/HREE | 6.16 | 6.70 | 5.87 | 4.98 | 2.80 | 1.36 | |
Y/Ho | 25.3 | 28.7 | 23.4 | 25.0 | 21.0 | 14.1 | |
[Ce/Ce*]N | 0.09 | 0.22 | 0.18 | 0.03 | 0.70 | 0.87 | |
[Eu/Eu*]N | 0.93 | 0.33 | 0.33 | 0.47 | 1.00 | 0.71 | |
[La/Yb]N | 17.2 | 19.1 | 14.2 | 10.6 | 4.01 | 1.43 |
