岩石化学/% | 稀土元素/10−6 | |||||||||||
样品 | ET031 | ET032 | ET033 | ET034 | 平均 | 样品 | ET031 | ET032 | ET033 | ET034 | 平均 | 海水 |
MnO | 41.84 | 41.53 | 42.06 | 38.53 | 40.99 | La | 102.70 | 92.74 | 65.24 | 110.90 | 92.90 | 4.26 |
FeO | 5.45 | 4.57 | 2.74 | 8.68 | 5.36 | Ce | 234.30 | 178.90 | 142.30 | 306.30 | 215.45 | 1.46 |
TiO2 | 0.55 | 0.35 | 0.27 | 0.71 | 0.47 | Pr | 28.84 | 26.77 | 20.63 | 32.46 | 27.18 | 0.58 |
Al2O3 | 4.73 | 4.75 | 3.85 | 4.17 | 4.38 | Nd | 128.10 | 116.80 | 91.01 | 133.90 | 117.45 | 2.64 |
MgO | 4.88 | 4.51 | 3.87 | 3.06 | 4.08 | Sm | 32.36 | 30.13 | 23.95 | 34.86 | 30.33 | 0.49 |
CaO | 2.07 | 1.88 | 1.93 | 2.39 | 2.07 | Eu | 7.21 | 6.78 | 5.29 | 7.84 | 6.78 | 0.14 |
P2O5 | 0.32 | 0.3 | 0.28 | 0.36 | 0.32 | Gd | 30.90 | 27.60 | 21.50 | 32.70 | 28.18 | 0.80 |
Ni | 1.78 | 1.4 | 1.31 | 1.4 | 1.47 | Tb | 4.75 | 4.38 | 3.37 | 5.20 | 4.43 | 0.13 |
Cu | 2.01 | 1.62 | 1.35 | 1.05 | 1.51 | Dy | 26.43 | 24.00 | 18.17 | 27.13 | 23.93 | 1.04 |
Co | 0.33 | 0.15 | 0.13 | 0.19 | 0.20 | Ho | 5.28 | 4.73 | 3.58 | 5.39 | 4.75 | 0.31 |
Zn | 0.15 | 0.15 | 0.22 | 0.16 | 0.17 | Er | 13.90 | 12.20 | 9.11 | 14.10 | 12.33 | 1.08 |
Sr | 0.06 | 0.05 | 0.04 | 0.05 | 0.05 | Tm | 2.00 | 1.78 | 1.28 | 1.99 | 1.76 | 0.17 |
Ba | 0.32 | 0.35 | 0.16 | 0.15 | 0.25 | Yb | 12.80 | 11.40 | 8.43 | 12.80 | 11.36 | 1.17 |
MnO/FeO | 7.67 | 9.08 | 15.34 | 4.44 | 9.13 | Lu | 1.89 | 1.65 | 1.20 | 1.88 | 1.66 | 0.22 |
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| REE | 631.46 | 539.86 | 415.06 | 727.45 | 578.46 | 14.49 |
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| LRE/HRE | 5.45 | 5.15 | 5.23 | 6.19 | 5.51 | 1.95 |
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| δCe | 1.04 | 0.86 | 0.93 | 1.23 | 1.02 | 0.22 |
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| δEu | 0.697 | 0.719 | 0.713 | 0.71 | 0.710 | 0.684 |