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 Low Calcium Pyroxene 33 As 0.14       Phenocryst-Matrix Ewart & Griffin 1994
Andesite Magnetite 33 As 2       Phenocryst-Matrix Ewart & Griffin 1994
Andesite Olivine 33 As 0.11       Phenocryst-Matrix Ewart & Griffin 1994
Andesite Plagioclase 33 As       0.18 Phenocryst-Matrix Ewart & Griffin 1994
Basalt Metal 33 As 1000       Phenocryst-Matrix Kloeck & Palme 1988
Basalt Olivine 33 As 0.3       Phenocryst-Matrix Kloeck & Palme 1988
Basanite Amphibole 33 As     0.044 0.02 Experimental Adam & Green 2006
Basanite Clinopyroxene 33 As     0.31 0.0075 Experimental Adam & Green 2006
Basanite Garnet 33 As     0.18 0.13 Experimental Adam & Green 2006
Basanite Mica 33 As     0.03 0.03 Experimental Adam & Green 2006
Basanite Olivine 33 As     0.002 0.009 Experimental Adam & Green 2006
Basanite Orthopyroxene 33 As       0.006 Experimental Adam & Green 2006
High Silica Rhyolite Low Calcium Pyroxene 33 As 0.23       Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Magnetite 33 As 2.6       Phenocryst-Matrix Ewart & Griffin 1994
High Silica Rhyolite Plagioclase 33 As     0.02 0.12 Phenocryst-Matrix Ewart & Griffin 1994
Leucitite Plagioclase 33 As 0.056       Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite K-Feldspar 33 As     0.11 0.41 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Low Calcium Pyroxene 33 As     0.45 0.83 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Magnetite 33 As       1.1 Phenocryst-Matrix Ewart & Griffin 1994
Low Silica Rhyolite Plagioclase 33 As       0.05 Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Clinopyroxene 33 As 0.51       Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Low Calcium Pyroxene 33 As     0.25 0.3 Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Magnetite 33 As     1.4 3.6 Phenocryst-Matrix Ewart & Griffin 1994
Quartz Latite Plagioclase 33 As     0.1 0.39 Phenocryst-Matrix Ewart & Griffin 1994
Rhyolite Pyrrhotite 33 As     2 3 Phenocryst-Matrix, PIXE Stimac & Hickmott 1994
Click to return to previous page