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
High Silica Rhyolite K-Feldspar 20 Ca     0.06 0.92 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 30 Zn     0.041 0.098 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 37 Rb     0.28 0.74 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 38 Sr     2 6 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 42 Mo 0.2   0.2   Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 55 Cs     0.002 0.061 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 56 Ba     1 44 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 57 La     0.026 0.15 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 58 Ce     0.017 0.095 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 60 Nd     0.009 0.093 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 62 Sm     0.0024 0.046 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 63 Eu     1.6 9.6 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 65 Tb     0.012 0.092 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 70 Yb     0.002 0.024 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 71 Lu     0.003 0.07 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 72 Hf     0.0052 0.042 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 73 Ta     0.0007 0.029 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 90 Th     0.0023 0.028 Phenocryst-Matrix Stix & Gorton 1990
High Silica Rhyolite K-Feldspar 92 U     0.002 0.037 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 20 Ca     0.13 0.25 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 37 Rb     1.2 1.8 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 38 Sr     4.5 7.3 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 55 Cs     0.11 0.16 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 56 Ba     7.2 24 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 57 La     0.07 0.08 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 58 Ce     0.02 0.04 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 60 Nd     0.03 0.04 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 62 Sm 0.02   0.02   Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 63 Eu     3.3 6.5 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 65 Tb     0.01 0.02 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 70 Yb 0.03   0.03   Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 71 Lu     0.02 0.04 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 72 Hf     0.02 0.05 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 73 Ta     0.001 0.01 Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 90 Th 0.02   0.02   Phenocryst-Matrix Stix & Gorton 1990
Rhyolite-Dacite K-Feldspar 92 U 0.04   0.04   Phenocryst-Matrix Stix & Gorton 1990
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