Rare Earth Elements (REE) | SAMPLE Nos. | |||||||||
D9 | D12 | D16 | D19 | BP5 | BP9 | NB2 | NB5 | N4(1) | N5(2) | |
La | 12.61 | 22.93 | 19.84 | 23.58 | 18.5 | 20.08 | 21.39 | 29.81 | 16.68 | 32.31 |
Ce | 26.92 | 47.27 | 45.58 | 53.58 | 40.76 | 46.62 | 43.61 | 65.72 | 35.38 | 72.11 |
Pr | 3.16 | 5.85 | 5.54 | 6.73 | 4.99 | 5.55 | 5.45 | 8.1 | 4.33 | 8.87 |
Nd | 12.01 | 22.08 | 21.47 | 25.29 | 18.83 | 21.02 | 20.48 | 30.4 | 15.98 | 34.13 |
Sm | 2.47 | 4.67 | 4.71 | 5.27 | 4.06 | 4.51 | 4.35 | 6.06 | 3.38 | 7.1 |
Eu | 0.67 | 1.13 | 1.12 | 1.18 | 0.95 | 0.99 | 1.09 | 1.27 | 0.89 | 1.42 |
Gd | 2.32 | 4.46 | 4.14 | 4.43 | 3.73 | 4.03 | 4.02 | 5.33 | 3.2 | 6.08 |
Tb | 0.42 | 0.83 | 0.71 | 0.7 | 0.63 | 0.64 | 0.75 | 0.84 | 0.62 | 0.97 |
Dy | 2.42 | 5.16 | 3.66 | 3.48 | 3.34 | 3.35 | 4.27 | 3.98 | 3.48 | 5.04 |
Ho | 0.44 | 0.94 | 0.6 | 0.57 | 0.59 | 0.54 | 0.71 | 0.67 | 0.63 | 0.85 |
Er | 1.19 | 2.68 | 1.64 | 1.57 | 1.56 | 1.49 | 2.12 | 1.85 | 1.87 | 2.45 |
Tm | 0.18 | 0.43 | 0.22 | 0.21 | 0.27 | 0.21 | 0.34 | 0.25 | 0.29 | 0.36 |
Yb | 1.05 | 2.59 | 1.29 | 1.18 | 1.28 | 1.22 | 2 | 1.51 | 1.71 | 2.06 |
Lu | 0.16 | 0.38 | 0.19 | 0.18 | 0.19 | 0.18 | 0.29 | 0.22 | 0.26 | 0.29 |
REE ratios | ||||||||||
ΣREE | 66.02 | 121.4 | 110.71 | 127.95 | 99.68 | 110.43 | 110.87 | 156.01 | 88.7 | 174.04 |
ΣLREE | 57.84 | 103.93 | 98.26 | 115.63 | 88.09 | 98.77 | 96.37 | 141.36 | 76.64 | 155.94 |
ΣHREE | 8.18 | 17.47 | 12.45 | 12.32 | 11.59 | 11.66 | 14.5 | 14.65 | 12.06 | 18.1 |
ΣLREE/ΣHREE | 7.07 | 5.95 | 7.89 | 9.39 | 7.60 | 8.47 | 6.65 | 9.65 | 6.35 | 8.62 |
Eu/Eu* | 0.09 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.07 | 0.09 | 0.07 |
La/Yb | 12.01 | 8.85 | 15.38 | 19.98 | 14.45 | 16.46 | 10.70 | 19.74 | 9.75 | 15.68 |
La/Y | 1.01 | 0.82 | 1.08 | 1.42 | 1.11 | 1.28 | 1 | 1.59 | 0.94 | 1.33 |