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
Basalt-Andesite Clinopyroxene 21 Sc     2.2 3.5 Model Ewart et al. 1973
Basalt-Andesite Clinopyroxene 21 Sc     2.5 3.5 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Clinopyroxene 22 Ti     0.19 0.34 Model Ewart et al. 1973
Basalt-Andesite Clinopyroxene 23 V     0.94 1.2 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Clinopyroxene 23 V     0.64 1.1 Model Ewart et al. 1973
Basalt-Andesite Clinopyroxene 24 Cr     11 44 Model Ewart et al. 1973
Basalt-Andesite Clinopyroxene 24 Cr     9.7 33 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Clinopyroxene 25 Mn     1.2 1.8 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Clinopyroxene 25 Mn     1.1 1.8 Model Ewart et al. 1973
Basalt-Andesite Clinopyroxene 27 Co     1.6 2.4 Model Ewart et al. 1973
Basalt-Andesite Clinopyroxene 27 Co     1.7 2.4 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Clinopyroxene 28 Ni     5.6 8.4 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Clinopyroxene 28 Ni     6.2 10 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Clinopyroxene 29 Cu     0.09 1.1 Model Ewart et al. 1973
Basalt-Andesite Clinopyroxene 29 Cu     0.12 0.69 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 21 Sc     1.4 1.9 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 21 Sc     1.2 1.9 Model Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 22 Ti     0.14 0.27 Model Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 23 V     0.47 0.6 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 24 Cr     3.7 17 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 24 Cr     10 36 Model Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 25 Mn     1.8 2.4 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 25 Mn     1.6 2.3 Model Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 27 Co     3.3 4.4 Model Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 27 Co     3.4 4.5 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 28 Ni     8.6 13 Model Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 28 Ni     7.3 11 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 29 Cu     0.16 0.92 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Low Calcium Pyroxene 29 Cu     0.13 1.4 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 12 Mg     0.05 0.09 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 19 K     0.06 0.2 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Plagioclase 19 K     0.07 0.2 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 26 Fe     0.07 0.09 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 29 Cu     0.07 0.38 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 29 Cu     0.08 0.24 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Plagioclase 31 Ga     0.71 1.1 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 38 Sr     1.4 1.8 Phenocryst-Matrix Ewart et al. 1973
Basalt-Andesite Plagioclase 38 Sr     1.5 2 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 56 Ba     0.12 0.2 Model Ewart et al. 1973
Basalt-Andesite Plagioclase 56 Ba     0.12 0.19 Phenocryst-Matrix Ewart et al. 1973
Dacite Clinopyroxene 21 Sc     3.4 12 Model Ewart et al. 1973
Dacite Clinopyroxene 21 Sc     3.5 8.7 Phenocryst-Matrix Ewart et al. 1973
Dacite Clinopyroxene 22 Ti     0.41 0.78 Model Ewart et al. 1973
Dacite Clinopyroxene 23 V     1.3 12.5 Model Ewart et al. 1973
Dacite Clinopyroxene 23 V     1.2 2.8 Phenocryst-Matrix Ewart et al. 1973
Dacite Clinopyroxene 24 Cr     1 2.3 Model Ewart et al. 1973
Dacite Clinopyroxene 24 Cr     0.75 3.3 Phenocryst-Matrix Ewart et al. 1973
Dacite Clinopyroxene 25 Mn     0.19 4.2 Phenocryst-Matrix Ewart et al. 1973
Dacite Clinopyroxene 25 Mn     1.8 5.1 Model Ewart et al. 1973
Dacite Clinopyroxene 27 Co     3.2 6.8 Model Ewart et al. 1973
Dacite Clinopyroxene 27 Co     2.9 4.9 Phenocryst-Matrix Ewart et al. 1973
Dacite Clinopyroxene 29 Cu     0.51 0.87 Phenocryst-Matrix Ewart et al. 1973
Dacite Clinopyroxene 29 Cu     0.44 3.1 Model Ewart et al. 1973
Dacite Low Calcium Pyroxene 21 Sc     2 4.6 Phenocryst-Matrix Ewart et al. 1973
Dacite Low Calcium Pyroxene 21 Sc     1.9 6.2 Model Ewart et al. 1973
Dacite Low Calcium Pyroxene 23 V     0.64 2.3 Phenocryst-Matrix Ewart et al. 1973
Dacite Low Calcium Pyroxene 24 Cr     1 4 Model Ewart et al. 1973
Dacite Low Calcium Pyroxene 24 Cr     0.65 4.3 Phenocryst-Matrix Ewart et al. 1973
Dacite Low Calcium Pyroxene 25 Mn     2.8 7.8 Model Ewart et al. 1973
Dacite Low Calcium Pyroxene 25 Mn     0.31 0.5 Phenocryst-Matrix Ewart et al. 1973
Dacite Low Calcium Pyroxene 27 Co     6.8 14 Model Ewart et al. 1973
Dacite Low Calcium Pyroxene 27 Co     6.1 9.4 Phenocryst-Matrix Ewart et al. 1973
Dacite Low Calcium Pyroxene 29 Cu     0.5 1.3 Model Ewart et al. 1973
Dacite Low Calcium Pyroxene 29 Cu     0.45 1.2 Phenocryst-Matrix Ewart et al. 1973
Dacite Plagioclase 12 Mg     0.05 0.15 Model Ewart et al. 1973
Dacite Plagioclase 19 K     0.04 0.09 Phenocryst-Matrix Ewart et al. 1973
Dacite Plagioclase 19 K     0.04 0.1 Model Ewart et al. 1973
Dacite Plagioclase 26 Fe     0.08 0.18 Model Ewart et al. 1973
Dacite Plagioclase 29 Cu     0.15 0.32 Phenocryst-Matrix Ewart et al. 1973
Dacite Plagioclase 29 Cu     0.17 0.34 Model Ewart et al. 1973
Dacite Plagioclase 31 Ga     1.1 1.7 Model Ewart et al. 1973
Dacite Plagioclase 38 Sr     2 2.9 Model Ewart et al. 1973
Dacite Plagioclase 38 Sr     1.9 2.6 Phenocryst-Matrix Ewart et al. 1973
Dacite Plagioclase 56 Ba     0.11 0.17 Phenocryst-Matrix Ewart et al. 1973
Dacite Plagioclase 56 Ba     0.1 0.17 Model Ewart et al. 1973
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