Fractional crystallization of iron meteorites: Constant versus changing partition coefficients

Details Fractional crystallization of iron meteorites: Constant versus changing partition coefficients Fractional crystallization of iron meteorites: Constant versus changing partition coefficients

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994metic..29..423j&link_type=abstract

Meteoritics, vol. 29, no. 3, p. 423-426

Mathematics

3

Chemical Analysis, Coefficients, Concentration (Composition), Crystallization, Fractionation, Geochemistry, Iron, Meteorites, Meteoritic Composition, Trace Elements, Gold, Mathematical Models, Nickel, Parameterization, Tables (Data)

Scientific paper

Analyses of magmatic iron meteorites, plotted on LogCi vs LogCNi diagrams, often form linear arrays. Traditionally, this linearity has been ascribed to fractional crystallization under the assumption of constant partition coefficients (i.e., Rayleigh fractionation). Paradoxically, however, partition coefficients in the Fe-Ni-S-P system are decidedly not constant. This contribution provides a rationale for understanding how trends on LogCi vs LogCNi diagrams can be linear, even when partition coefficients are changing rapidly.

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