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
Basaltic Andesite Amphibole 37 Rb     0.07 0.16 Experimental Green et al. 1993
Basaltic Andesite Amphibole 38 Sr     0.08 0.35 Experimental Green et al. 1993
Basaltic Andesite Amphibole 39 Y     0.4 1.3 Experimental Green et al. 1993
Basaltic Andesite Amphibole 40 Zr     0.15 0.35 Experimental Green et al. 1993
Basaltic Andesite Amphibole 41 Nb     0.026 0.21 Experimental Green et al. 1993
Basaltic Andesite Amphibole 73 Ta     0.021 0.19 Experimental Green et al. 1993
Basanite Amphibole 37 Rb 0.58       Experimental Green et al. 1993
Basanite Amphibole 38 Sr 0.26       Experimental Green et al. 1993
Basanite Amphibole 39 Y 0.41       Experimental Green et al. 1993
Basanite Amphibole 40 Zr 0.33       Experimental Green et al. 1993
Basanite Amphibole 41 Nb 0.08       Experimental Green et al. 1993
Basanite Amphibole 56 Ba 0.6       Experimental Green et al. 1993
Basanite Amphibole 73 Ta 0.08       Experimental Green et al. 1993
Basanite-Basalt Low Calcium Pyroxene 37 Rb 0.02       Experimental Green et al. 1993
Basanite-Basalt Low Calcium Pyroxene 38 Sr 0.09       Experimental Green et al. 1993
Basanite-Basalt Low Calcium Pyroxene 39 Y 1.1       Experimental Green et al. 1993
Basanite-Basalt Low Calcium Pyroxene 40 Zr 0.22       Experimental Green et al. 1993
Basanite-Basalt Low Calcium Pyroxene 41 Nb 0.01       Experimental Green et al. 1993
Basanite-Basalt Low Calcium Pyroxene 56 Ba 0.02       Experimental Green et al. 1993
Basanite-Basalt Low Calcium Pyroxene 73 Ta 0.02       Experimental Green et al. 1993
Carbonatite Amphibole 37 Rb 0.28       Experimental Green et al. 1993
Carbonatite Amphibole 38 Sr 0.04       Experimental Green et al. 1993
Carbonatite Amphibole 39 Y 0.19       Experimental Green et al. 1993
Carbonatite Amphibole 40 Zr 0.23       Experimental Green et al. 1993
Carbonatite Amphibole 41 Nb 0.06       Experimental Green et al. 1993
Carbonatite Amphibole 56 Ba 0.01       Experimental Green et al. 1993
Carbonatite Amphibole 73 Ta 0.13       Experimental Green et al. 1993
Carbonatite Low Calcium Pyroxene 37 Rb 0.004       Experimental Green et al. 1993
Carbonatite Low Calcium Pyroxene 38 Sr 0.03       Experimental Green et al. 1993
Carbonatite Low Calcium Pyroxene 39 Y 0.22       Experimental Green et al. 1993
Carbonatite Low Calcium Pyroxene 40 Zr 0.29       Experimental Green et al. 1993
Carbonatite Low Calcium Pyroxene 41 Nb 0.01       Experimental Green et al. 1993
Carbonatite Low Calcium Pyroxene 56 Ba 0.006       Experimental Green et al. 1993
Carbonatite Low Calcium Pyroxene 73 Ta 0.03       Experimental Green et al. 1993
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