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 Plagioclase 24 Cr     0.48 2.35 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 25 Mn     0.008 0.023 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 25 Mn     0.09 0.5 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 26 Fe     0.12 0.28 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 27 Co     0.5 1.42 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 28 Ni       0.3 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 29 Cu     0.5 1.4 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 30 Zn     0.12 0.23 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 31 Ga     0.59 1.7 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 33 As     0.02 0.12 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 37 Rb     0.011 0.029 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 37 Rb     0.13 0.34 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 38 Sr     10.5 13.1 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 38 Sr     4.04 12.2 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 39 Y     0.022 0.084 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 40 Zr     0.036 0.16 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 41 Nb     0.07 0.27 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 51 Sb     0.08 0.22 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 55 Cs     0.025 0.084 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 56 Ba     6.95 19.55 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 56 Ba     1 1.8 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 57 La     0.07 0.17 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 58 Ce     0.032 0.104 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 62 Sm     0.008 0.019 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 63 Eu     3.75 5.62 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 65 Tb     0.022 0.027 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 70 Yb     0.012 0.026 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 71 Lu     0.012 0.023 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 72 Hf     0.028 0.046 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 73 Ta     0.034 0.063 Phenocryst-Matrix Streck & Grunder 1997
High Silica Rhyolite Plagioclase 82 Pb     0.35 0.97 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 90 Th 0.03       Phenocryst-Matrix Streck & Grunder 1997
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