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 Amphibole 20 Ca 0.333       Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Amphibole 37 Rb 0.0448       Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Amphibole 38 Sr 0.188       Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Amphibole 56 Ba 0.0996       Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Clinopyroxene 19 K     0.00344 0.0185 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Clinopyroxene 37 Rb     0.00031 0.0129 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Clinopyroxene 38 Sr     0.00187 0.0648 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Clinopyroxene 56 Ba     0.00041 0.0414 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Low Calcium Pyroxene 37 Rb     0.0148 0.0287 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Low Calcium Pyroxene 38 Sr     0.0104 0.0241 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Low Calcium Pyroxene 56 Ba     0.0121 0.0141 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Plagioclase 19 K     0.0837 0.137 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Plagioclase 37 Rb     0.039 0.0705 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Plagioclase 38 Sr     1.31 1.83 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite Plagioclase 56 Ba     0.137 0.197 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Clinopyroxene 19 K     0.00839 0.0271 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Clinopyroxene 37 Rb     0.0139 0.0393 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Clinopyroxene 38 Sr     0.0782 0.0934 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Clinopyroxene 56 Ba     0.0133 0.0275 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Low Calcium Pyroxene 19 K     0.00908 0.019 Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Plagioclase 19 K 0.151       Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Plagioclase 37 Rb 0.188       Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Plagioclase 38 Sr 1.55       Phenocryst-Matrix Philpotts & Schnetzler 1970
Andesite-Basalt Plagioclase 56 Ba 0.242       Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Clinopyroxene 19 K     0.0286 0.273 Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Clinopyroxene 37 Rb     0.0146 0.284 Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Clinopyroxene 38 Sr     0.105 0.43 Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Clinopyroxene 56 Ba     0.0199 0.388 Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Olivine 56 Ba     0.00864 0.0112 Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Plagioclase 19 K 0.231       Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Plagioclase 37 Rb 0.058       Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Plagioclase 38 Sr 1.77       Phenocryst-Matrix Philpotts & Schnetzler 1970
Ankaramite, Basalt Plagioclase 56 Ba 0.263       Phenocryst-Matrix Philpotts & Schnetzler 1970
Basalt Olivine 19 K     0.0056 0.00809 Phenocryst-Matrix Philpotts & Schnetzler 1970
Basalt Olivine 37 Rb     0.00839 0.0133 Phenocryst-Matrix Philpotts & Schnetzler 1970
Basalt Olivine 38 Sr     0.00937 0.0185 Phenocryst-Matrix Philpotts & Schnetzler 1970
Basalt Plagioclase 19 K     0.156 0.361 Phenocryst-Matrix Philpotts & Schnetzler 1970
Basalt Plagioclase 37 Rb     0.0294 0.138 Phenocryst-Matrix Philpotts & Schnetzler 1970
Basalt Plagioclase 38 Sr     1.36 2.75 Phenocryst-Matrix Philpotts & Schnetzler 1970
Basalt Plagioclase 56 Ba     0.151 0.589 Phenocryst-Matrix Philpotts & Schnetzler 1970
Camptonite Amphibole 19 K     1.15 1.4 Phenocryst-Matrix Philpotts & Schnetzler 1970
Camptonite Amphibole 37 Rb     0.411 0.427 Phenocryst-Matrix Philpotts & Schnetzler 1970
Camptonite Amphibole 38 Sr     0.548 0.561 Phenocryst-Matrix Philpotts & Schnetzler 1970
Camptonite Amphibole 56 Ba     0.417 0.731 Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Biotite 19 K 5.63       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Biotite 37 Rb 3.26       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Biotite 38 Sr 0.12       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Biotite 56 Ba 6.36       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Garnet 19 K 0.0198       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Garnet 37 Rb 0.00851       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Garnet 38 Sr 0.0154       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Garnet 56 Ba 0.0172       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Plagioclase 19 K 0.263       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Plagioclase 37 Rb 0.0479       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Plagioclase 38 Sr 2.84       Phenocryst-Matrix Philpotts & Schnetzler 1970
Dacite Plagioclase 56 Ba 0.363       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Biotite 19 K 2.65       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Biotite 37 Rb 3.06       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Biotite 38 Sr 0.0812       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Biotite 56 Ba 1.09       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Clinopyroxene 19 K 0.0135       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Clinopyroxene 37 Rb 0.0152       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Clinopyroxene 38 Sr 0.154       Phenocryst-Matrix Philpotts & Schnetzler 1970
Phonolite Clinopyroxene 56 Ba 0.0128       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Biotite 19 K 1.01       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Biotite 37 Rb 0.936       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Biotite 38 Sr 0.672       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Biotite 56 Ba 15.3       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Clinopyroxene 19 K 0.0366       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Clinopyroxene 37 Rb 0.0324       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Clinopyroxene 38 Sr 0.516       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite Clinopyroxene 56 Ba 0.131       Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite K-Feldspar 19 K 1.49   1.49   Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite K-Feldspar 37 Rb 0.659   0.659   Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite K-Feldspar 38 Sr 3.87   3.87   Phenocryst-Matrix Philpotts & Schnetzler 1970
Rhyolite-Dacite K-Feldspar 56 Ba 6.12   6.12   Phenocryst-Matrix Philpotts & Schnetzler 1970
Tholeiite-Andesite Plagioclase 19 K     0.0188 0.0196 Phenocryst-Matrix Philpotts & Schnetzler 1970
Tholeiite-Andesite Plagioclase 37 Rb     0.025 0.0463 Phenocryst-Matrix Philpotts & Schnetzler 1970
Tholeiite-Andesite Plagioclase 38 Sr     1.27 1.31 Phenocryst-Matrix Philpotts & Schnetzler 1970
Tholeiite-Andesite Plagioclase 56 Ba 0.0537       Phenocryst-Matrix Philpotts & Schnetzler 1970
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