Rare Earth Elements (REE) | SAMPLE Nos. | |||||||||
D25 | D30 | D34 | D41 | BP14 | BP19 | NB9 | NB14 | B5 | B12 | |
La | 22.14 | 38.84 | 26.41 | 35.18 | 22.83 | 25.14 | 39.84 | 23.13 | 26.91 | 35.27 |
Ce | 44.92 | 77.21 | 53.21 | 71.35 | 47.24 | 51.84 | 77.26 | 45.94 | 55.24 | 71.49 |
Pr | 5.36 | 8.87 | 6.31 | 8.47 | 5 | 6.09 | 8.11 | 5.49 | 6.57 | 8.29 |
Nd | 19.39 | 31.22 | 23.19 | 30.43 | 18.04 | 22.4 | 27.08 | 19.63 | 23.82 | 29.71 |
Sm | 3.96 | 6.13 | 4.59 | 6.09 | 3.57 | 4.47 | 4.76 | 3.92 | 4.67 | 5.86 |
Eu | 0.96 | 1.33 | 1.07 | 1.38 | 1.11 | 1.16 | 1.13 | 0.98 | 1.15 | 1.35 |
Gd | 3.96 | 5.76 | 4.21 | 5.78 | 3.94 | 4.33 | 4.96 | 3.83 | 4.69 | 5.73 |
Tb | 0.71 | 1.01 | 0.76 | 1.07 | 0.74 | 0.79 | 0.84 | 0.7 | 0.79 | 0.99 |
Dy | 4.22 | 5.69 | 4.09 | 6.03 | 4.23 | 4.47 | 4.74 | 3.9 | 4.57 | 5.88 |
Ho | 0.79 | 1.07 | 0.76 | 1.11 | 0.83 | 0.85 | 0.89 | 0.72 | 0.85 | 1.13 |
Er | 2.26 | 3.26 | 2.2 | 3.18 | 2.45 | 2.44 | 2.64 | 2.15 | 2.41 | 3.22 |
Tm | 0.35 | 0.49 | 0.34 | 0.48 | 0.38 | 0.38 | 0.39 | 0.32 | 0.36 | 0.52 |
Yb | 2.01 | 3.08 | 1.94 | 2.83 | 2.26 | 2.22 | 2.42 | 1.92 | 1.99 | 2.96 |
Lu | 0.31 | 0.43 | 0.31 | 0.39 | 0.33 | 0.34 | 0.36 | 0.28 | 0.31 | 0.45 |
REE ratios | ||||||||||
ΣREE | 111.34 | 184.39 | 129.39 | 173.77 | 112.95 | 126.92 | 175.42 | 112.91 | 134.33 | 172.85 |
ΣLREE | 96.73 | 163.6 | 114.78 | 152.9 | 97.79 | 111.1 | 158.18 | 99.09 | 118.36 | 151.97 |
ΣHREE | 14.61 | 20.79 | 14.61 | 20.87 | 15.16 | 15.82 | 17.24 | 13.82 | 15.97 | 20.88 |
ΣLREE/ΣHREE | 6.62 | 7.87 | 7.86 | 7.33 | 6.45 | 7.02 | 9.18 | 7.17 | 7.41 | 7.28 |
Eu/Eu* | 0.08 | 0.07 | 0.08 | 0.08 | 0.1 | 0.09 | 0.08 | 0.08 | 0.08 | 0.08 |
La/Yb | 11.01 | 12.61 | 13.61 | 12.43 | 10.10 | 11.32 | 16.46 | 12.05 | 13.52 | 11.92 |
La/Y | 0.94 | 1.27 | 1.15 | 1.09 | 0.89 | 1.05 | 1.45 | 1.06 | 1.1 | 1.06 |