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
Trachyandesite Amphibole 31 Ga 6.6       Phenocryst-Matrix Luhr et al. 1984
Synthetic Peridotite Mg Perovskite 31 Ga     0.37 0.58 Experimental Liebske et al. 2005
Synthetic CMAST Ca-Perovskite 31 Ga     0.18 0.3 Experimental Corgne et al. 2005
Synthetic CMAST Mg Perovskite 31 Ga     0.21 0.47 Experimental Corgne et al. 2005
Synthetic Basalt Metal 31 Ga     1 14 Experimental Drake et al. 1984
Quartz Latite Clinopyroxene 31 Ga       0.21 Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Low Calcium Pyroxene 31 Ga     0.22 0.45 Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Magnetite 31 Ga     3.9 8.1 Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Plagioclase 31 Ga     2.4 4.2 Phenocryst-Matrix Ewart & Griffin 1994
Per-Alkaline Rhyolite Clinopyroxene 31 Ga     0.1 0.11 Phenocryst-Matrix Ewart & Griffin 1994
Per-Alkaline Rhyolite Ilmenite 31 Ga       0.22 Phenocryst-Matrix Ewart & Griffin 1994
Per-Alkaline Rhyolite K-Feldspar 31 Ga     0.91 2.02 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Allanite 31 Ga 1.5       Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Amphibole 31 Ga     0.78 1.22 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Biotite 31 Ga 1.7       Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Clinopyroxene 31 Ga     0.32 0.59 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Ilmenite 31 Ga     0.62 12.4 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite K-Feldspar 31 Ga     0.45 2 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Low Calcium Pyroxene 31 Ga     0.18 4.7 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Magnetite 31 Ga     0.51 5.6 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Olivine 31 Ga       0.15 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Plagioclase 31 Ga     1.26 2.3 Phenocryst-Matrix Ewart & Griffin 1994
Leucitite Clinopyroxene 31 Ga 0.61       Phenocryst-Matrix Ewart & Griffin 1994
Leucitite Leucite 31 Ga 0.42       Phenocryst-Matrix Ewart & Griffin 1994
Leucitite Plagioclase 31 Ga 0.56       Phenocryst-Matrix Ewart & Griffin 1994
Lamproite Clinopyroxene 31 Ga       0.118 Phenocryst-Matrix Foley & Jenner 2004
Lamproite Leucite 31 Ga 0.347       Phenocryst-Matrix Foley & Jenner 2004
High Silica Rhyolite Allanite 31 Ga 2.9       Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Amphibole 31 Ga     1.15 1.77 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Biotite 31 Ga 3.1       Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Ilmenite 31 Ga     0.21 0.32 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite K-Feldspar 31 Ga     0.2 1.7 Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Low Calcium Pyroxene 31 Ga 0.21       Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Magnetite 31 Ga 4.32       Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 31 Ga     0.59 1.7 Phenocryst-Matrix Ewart & Griffin 1994
High Na-Al Basalt Clinopyroxene 31 Ga 0.69 0.12     Experimental Blundy et al. 1998
High Na-Al Basalt Plagioclase 31 Ga 0.36 0.08     Experimental Blundy et al. 1998
Fe-Ni-S-P-X-Basalt Metal 31 Ga     1.5 8.6 Experimental Jones & Drake 1983
Dacite Amphibole 31 Ga 2.42       Phenocryst-Matrix Ewart & Griffin 1994
Dacite Biotite 31 Ga 4.2       Phenocryst-Matrix Ewart & Griffin 1994
Dacite Magnetite 31 Ga 2.8       Phenocryst-Matrix Ewart & Griffin 1994
Dacite Plagioclase 31 Ga     1.1 1.7 Model Ewart et al. 1973
Dacite Plagioclase 31 Ga 3.2       Phenocryst-Matrix Ewart & Griffin 1994
Carbonatite Clinopyroxene 31 Ga     0.18 20 Experimental Blundy & Dalton 2000
Carbonatite Olivine 31 Ga 0.7       Experimental Blundy & Dalton 2000
Basanite Amphibole 31 Ga     0.6 0.68 Experimental Adam & Green 2006
Basanite Clinopyroxene 31 Ga     0.77 0.34 Experimental Adam & Green 2006
Basanite Garnet 31 Ga     1.02 1 Experimental Adam & Green 2006
Basanite Mica 31 Ga     0.66 0.81 Experimental Adam & Green 2006
Basanite Olivine 31 Ga     0.005 0.012 Experimental Adam & Green 2006
Basanite Orthopyroxene 31 Ga 0.38 0.02     Experimental Adam & Green 2006
Basalt-Andesite Plagioclase 31 Ga     0.71 1.1 Model Ewart et al. 1973
Basalt Apatite 31 Ga       0.25 Phenocryst-Matrix Paster et al. 1974
Basalt Clinopyroxene 31 Ga 0.74       Experimental Hart & Dunn 1993
Basalt Clinopyroxene 31 Ga       0.25 Phenocryst-Matrix Paster et al. 1974
Basalt Ilmenite 31 Ga 0.14       Phenocryst-Matrix Paster et al. 1974
Basalt Magnetite 31 Ga 2       Experimental Lemarchand et al. 1987
Basalt Metal 31 Ga 0.6       Phenocryst-Matrix Kloeck & Palme 1988
Basalt Metal 31 Ga     1.1 88.4 Experimental Schmitt et al. 1989
Basalt Metal 31 Ga     1 1.7 Experimental Jones & Drake 1986
Basalt Olivine 31 Ga       0.25 Phenocryst-Matrix Paster et al. 1974
Basalt Olivine 31 Ga 0.04       Phenocryst-Matrix Kloeck & Palme 1988
Basalt Plagioclase 31 Ga 1.7       Phenocryst-Matrix Paster et al. 1974
Andesite Clinopyroxene 31 Ga 0.47       Phenocryst-Matrix Ewart & Griffin 1994
Andesite Low Calcium Pyroxene 31 Ga 0.32       Phenocryst-Matrix Ewart & Griffin 1994
Andesite Magnetite 31 Ga 4.1       Phenocryst-Matrix Ewart & Griffin 1994
Andesite Olivine 31 Ga       0.25 Phenocryst-Matrix Ewart & Griffin 1994
Andesite Plagioclase 31 Ga 1.5       Phenocryst-Matrix Ewart & Griffin 1994
Alkali Olivine Basalt Spinel 31 Ga     2.49 3.75 Experimental Horn et al. 1994
Alkali Basalt Clinopyroxene 31 Ga 0.74       Phenocryst-Matrix Zack & Brumm 1998
Alkali Basalt Ilmenite 31 Ga 0.4       Phenocryst-Matrix Zack & Brumm 1998
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