Sample | Umm Seleimat | Sikait | Umm El Kheran | Umm Addebaa | Det. Limit (ppb) | |||||||||||
Sm1 | Sm2 | Sm3 | Sm4 | S1 | S2 | S3 | Kh1 | Kh2 | Kh3 | Kh4 | D1 | D2 | D3 | D4 | ||
La | 123.1 | 138.54 | 101.22 | 35.87 | 158.75 | 73.01 | 49.65 | 18.4 | 8.6 | 11.3 | 29.01 | 12.01 | 19.06 | 24.12 | 15.1 | 50.0 |
Ce | 119.87 | 140.24 | 97.64 | 49.84 | 164.2 | 113.72 | 52.62 | 20.13 | 31.2 | 16.4 | 12.5 | 13.04 | 17.76 | 25.3 | 11.23 | 50.0 |
Pr | 67.42 | 114.5 | 89.8 | 53.31 | 67.98 | 56.21 | 60.86 | 13.37 | 11.93 | 14.72 | 8.12 | 16.07 | 18.85 | 21.9 | 13.03 | 30.0 |
Nd | 33.76 | 66.74 | 77.56 | 42.41 | 169.52 | 137.1 | 64.75 | 24.5 | 23.68 | 32.4 | 36.47 | 20.63 | 21.03 | 25.85 | 15.34 | 50.0 |
Sm | 28.45 | 33.86 | 19.02 | 18.05 | 32.65 | 31.06 | 21.34 | 15.94 | 3.02 | 5.9 | 7.16 | 8.72 | 10.96 | 14.19 | 6.72 | 30.0 |
Eu | 0.29 | 0.53 | 0.46 | 0.9 | 0.97 | 0.93 | 0.66 | 0.71 | 0.773 | 0.684 | 0.939 | 0.37 | 0.25 | 0.31 | 0.27 | 20.0 |
Gd | 20.12 | 26.46 | 52 | 22.86 | 19.72 | 17.48 | 10.82 | 32.02 | 21.66 | 27.88 | 33.64 | 28.58 | 25.95 | 24.4 | 24.8 | 20.0 |
Tb | 22.95 | 23.61 | 61.86 | 22.97 | 14.89 | 16.9 | 11.77 | 7.11 | 4.2 | 10.24 | 26.77 | 8.31 | 10.6 | 6.1 | 8.52 | 20.0 |
Dy | 24.8 | 55.63 | 74.22 | 19.03 | 12.48 | 32.38 | 12.68 | 37.78 | 27.12 | 36.68 | 16.92 | 25.96 | 27.78 | 23.65 | 42.21 | 20.0 |
Ho | 2.12 | 1.099 | 2.01 | 0.839 | 1.99 | 1.56 | 1.18 | 1.29 | 1.42 | 1.87 | 1.25 | 2.01 | 1.13 | 1.91 | 2.22 | 10.0 |
Er | 21 | 17.79 | 53.25 | 17.91 | 10.56 | 12.38 | 14.56 | 26.07 | 18.55 | 23.1 | 13.12 | 30.7 | 29.34 | 25.47 | 39 | 10.0 |
Yb | 13.81 | 18.6 | 14.68 | 8.11 | 12.24 | 19.03 | 4.33 | 8.48 | 22.48 | 9.32 | 19.2 | 11.37 | 14.98 | 26.12 | 8.45 | 10.0 |
Lu | 1.82 | 1.83 | 1.95 | 1.3 | 1.13 | 2.1 | 0.6 | 1.68 | 1.68 | 2.03 | 2.4 | 1.96 | 2.5 | 2.85 | 1.66 | 5.0 |
∑HREE | 106.6 | 145.1 | 259.9 | 93.1 | 73.01 | 101.8 | 55.9 | 114.4 | 97.11 | 111.1 | 113.3 | 108.9 | 112.3 | 110.5 | 126.86 | - |
∑LREE | 372.9 | 494.4 | 385.7 | 200.4 | 594.1 | 412.03 | 249.8 | 93.05 | 79.2 | 81.4 | 94.2 | 70.84 | 87.9 | 111.7 | 61.69 | - |
Total REEs | 479.5 | 639.4 | 645.7 | 293.4 | 667.08 | 513.9 | 305.8 | 207.5 | 176.3 | 192.5 | 207.5 | 179.7 | 200.2 | 222.2 | 188.6 | - |
Average | 514.5 | 495.6 | 195.9 | 197.7 | - | |||||||||||
HREE/LREE | 0.28 | 0.29 | 0.67 | 0.46 | 0.12 | 0.25 | 0.22 | 1.23 | 1.23 | 1.36 | 1.20 | 1.54 | 1.28 | 0.99 | 2.06 | - |
Eu/Eu* | 0.04 | 0.05 | 0.04 | 0.14 | 0.12 | 0.12 | 0.13 | 0.10 | 0.29 | 0.16 | 0.18 | 0.07 | 0.05 | 0.05 | 0.06 | - |
(La/Sm)N | 2.70 | 2.56 | 3.32 | 1.24 | 3.04 | 1.47 | 1.45 | 0.72 | 1.78 | 1.20 | 2.53 | 0.86 | 1.09 | 1.06 | 1.40 | - |
(La/Lu)N | 7.02 | 7.86 | 5.39 | 2.86 | 14.58 | 3.61 | 8.59 | 1.14 | 0.53 | 0.58 | 1.25 | 0.64 | 0.79 | 0.88 | 0.94 | - |
(La/Yb)N | 6.06 | 5.06 | 4.68 | 3.00 | 8.81 | 2.61 | 7.79 | 1.47 | 0.26 | 0.82 | 1.03 | 0.72 | 0.86 | 0.63 | 1.21 | - |
T1 | 1.92 | 1.82 | 1.46 | 1.82 | 0.89 | 1.10 | 1.38 | 1.07 | 1.87 | 1.12 | 0.43 | 1.27 | 1.26 | 1.30 | 1.10 | - |
T3 | 4.04 | 7.43 | 7.33 | 5.28 | 2.41 | 4.96 | 3.78 | 2.82 | 2.13 | 2.97 | 3.63 | 2.14 | 3.51 | 1.95 | 2.83 | - |
T1,3 | 2.79 | 3.68 | 3.27 | 3.10 | 1.46 | 2.34 | 2.28 | 1.73 | 1.99 | 1.82 | 1.25 | 1.65 | 2.10 | 1.59 | 1.76 | - |