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
Andesite Clinopyroxene 32 Ge 1.8       Phenocryst-Matrix Ewart & Griffin 1994
Andesite Low Calcium Pyroxene 32 Ge 2       Phenocryst-Matrix Ewart & Griffin 1994
Basalt Metal 32 Ge     201 4667 Experimental Schmitt et al. 1989
Basanite Amphibole 32 Ge     1.61 1.19 Experimental Adam & Green 2006
Basanite Clinopyroxene 32 Ge     3.27 1.52 Experimental Adam & Green 2006
Basanite Garnet 32 Ge       0.55 Experimental Adam & Green 2006
Basanite Mica 32 Ge     0.51 1.08 Experimental Adam & Green 2006
Basanite Olivine 32 Ge     0.95   Experimental Adam & Green 2006
Basanite Orthopyroxene 32 Ge 1.36 0.07     Experimental Adam & Green 2006
Chondritic Basalt Low Calcium Pyroxene 32 Ge     0.065 0.35 Experimental Kennedy et al. 1993
Chondritic Basalt Olivine 32 Ge     0.056 0.45 Experimental Kennedy et al. 1993
Dacite Amphibole 32 Ge       1.9 Phenocryst-Matrix Ewart & Griffin 1994
Dacite Biotite 32 Ge       2 Phenocryst-Matrix Ewart & Griffin 1994
Dacite Plagioclase 32 Ge       1.2 Phenocryst-Matrix Ewart & Griffin 1994
Fe-Ni Metal 32 Ge     0.71 0.61 Experimental Narayan & Goldstein 1982
Fe-Ni-S-P-X Metal 32 Ge     0.68 300 Experimental Jones & Drake 1983
Fe-Ni-S-P-X-Basalt Metal 32 Ge     1.44 9 Experimental Jones & Drake 1983
Fe-Ni-X Metal 32 Ge 0.57       Experimental Jones & Drake 1983
High Silica Rhyolite Amphibole 32 Ge     2.8 3.1 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Biotite 32 Ge       4.3 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Ilmenite 32 Ge       2.7 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite K-Feldspar 32 Ge     0.24 1.8 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Low Calcium Pyroxene 32 Ge 3.2       Phenocryst-Matrix Ewart & Griffin 1994
Leucitite Leucite 32 Ge     0.8   Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Amphibole 32 Ge     1.4 2.4 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Biotite 32 Ge       1.5 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Clinopyroxene 32 Ge     2.2 6.8 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Ilmenite 32 Ge     3.2 7.5 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite K-Feldspar 32 Ge     0.6 2.3 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Low Calcium Pyroxene 32 Ge     1.5   Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Plagioclase 32 Ge     0.45 1.5 Phenocryst-Matrix Ewart & Griffin 1994
Na2O¿CaO¿MgO¿Al2O3¿SiO2 Clinopyroxene 32 Ge     1 4.9 Experimental Hill et al. 2000
Per-Alkaline Rhyolite Amphibole 32 Ge 0.24       Phenocryst-Matrix Ewart & Griffin 1994
Per-Alkaline Rhyolite Clinopyroxene 32 Ge     3.6 3.8 Phenocryst-Matrix Ewart & Griffin 1994
Per-Alkaline Rhyolite K-Feldspar 32 Ge     0.68 1.6 Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Clinopyroxene 32 Ge     4.9   Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Low Calcium Pyroxene 32 Ge     3.4 3.7 Phenocryst-Matrix Ewart & Griffin 1994
Synthetic CMAST Ca-Perovskite 32 Ge     1.5 1.3 Experimental Corgne et al. 2005
Synthetic CMAST Mg Perovskite 32 Ge     0.51 1.2 Experimental Corgne et al. 2005
Synthetic Peridotite Mg Perovskite 32 Ge     0.54   Experimental Liebske et al. 2005
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