GERM Partition Coefficient (Kd) Database
Development and Maintenance by the EarthRef.org Database Team
Data contribution by Roger Nielsen

Partition Coefficients      
Rock Type Mineral Z Elem Value SD Low High Kd Type Info Reference
Per-Alkaline Trachyte Apatite 57 La     14.8 23.5 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Apatite 58 Ce     19.1 26.9 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 37 Rb     0.015 0.017 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 38 Sr 0.25       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 39 Y     0.66 1.12 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 40 Zr     0.235 0.382 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 41 Nb 0.121       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 41 Nb     0.025 0.029 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 55 Cs     0.026 0.048 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 56 Ba     0.009 0.024 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 57 La     0.296 0.423 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 58 Ce     0.458 0.578 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 59 Pr     0.635 1.012 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 60 Nd     0.769 1.31 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 62 Sm     0.87 1.38 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 63 Eu     0.702 1.2 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 64 Gd     0.778 1.24 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 65 Tb     0.758 1.33 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 66 Dy     0.764 1.09 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 67 Ho     0.712 1.13 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 68 Er     0.615 0.922 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 70 Yb     0.831 1.03 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 72 Hf     0.395 0.589 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 82 Pb     0.102 0.126 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 90 Th     0.019 0.038 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Clinopyroxene 92 U     0.018 0.019 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 37 Rb 0.32   0.32   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 38 Sr 2.3   2.3   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 39 Y 0.017   0.017   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 40 Zr 0.003   0.003   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 41 Nb 0.004   0.004   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 50 Sn 0.046   0.046   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 55 Cs 0.044   0.044   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 56 Ba 3.409   3.409   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 57 La 0.052   0.052   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 58 Ce 0.039   0.039   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 59 Pr 0.027   0.027   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 60 Nd 0.026   0.026   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 62 Sm 0.028   0.028   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 63 Eu 1.261   1.261   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 64 Gd 0.023   0.023   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 65 Tb 0.02   0.02   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 66 Dy 0.025   0.025   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 67 Ho 0.022   0.022   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 68 Er 0.017   0.017   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 70 Yb 0.028   0.028   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 72 Hf 0.009   0.009   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 82 Pb 0.208   0.208   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 90 Th 0.007   0.007   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte K-Feldspar 92 U 0.017   0.017   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 37 Rb 0.44       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 38 Sr 0.24       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 39 Y 0.01       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 40 Zr 0.005       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 41 Nb 0.011       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 55 Cs 0.413       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 56 Ba 0.09       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 57 La 0.01       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 58 Ce 0.011       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 59 Pr 0.013       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 60 Nd 0.013       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 62 Sm 0.012       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 63 Eu 0.043       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 64 Gd 0.013       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 65 Tb 0.014       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 67 Ho 0.012       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 68 Er 0.014       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 70 Yb 0.016       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 72 Hf 0.008       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 82 Pb 0.149       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 90 Th 0.014       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Nepheline 92 U 0.012       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 37 Rb 0.011       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 38 Sr 0.053   0.053   Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 39 Y 0.138       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 40 Zr 0.009       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 41 Nb 0.009       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 42 Mo 0.056       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 50 Sn 0.119       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 55 Cs 0.048       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 56 Ba 0.023       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 57 La     0.06 0.1 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 58 Ce 0.08       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 59 Pr 0.076       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 60 Nd     0.085 0.11 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 62 Sm     0.087 0.12 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 63 Eu 0.104       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 64 Gd     0.092 0.13 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 65 Tb 0.127       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 66 Dy 0.164       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 67 Ho     0.17 0.208 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 68 Er     0.19 0.257 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 70 Yb     0.26 0.395 Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 72 Hf 0.011       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 82 Pb 0.056       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 90 Th 0.014       Phenocryst-Matrix Larsen 1979
Per-Alkaline Trachyte Olivine 92 U 0.009       Phenocryst-Matrix Larsen 1979
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