Two methods for evaluating parameters for the partitioning of cations between coexisting single- and double-site phases

Details Two methods for evaluating parameters for the partitioning of cations between coexisting single- and double-site phases Two methods for evaluating parameters for the partitioning of cations between coexisting single- and double-site phases

Oct 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974gecoa..38.1521w&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 38, Issue 10, pp.1521-1526

Physics

Scientific paper

The proposed methods for estimating two free energy partitioning parameters of a one site-two site model have been specifically developed for cases where data are few or inconveniently grouped and utilize pairs of values of the mole fractions of the partitioned species A in the multi-site phase ( X A T ) and the single site phase ( X A m ). Where (X A T ) exceeds 0.7 the mod may become unstable such that small changes in the distribution curve gradient result in large changes in the evaluated intracrystalline exchange free energy. Such behaviour is exemplified by data from the system olivine-orthopyroxene.

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