An experimental study of the partitioning of K, Rb, Cs, Sr and Ba between clinopyroxene and liquid at high pressures

Details An experimental study of the partitioning of K, Rb, Cs, Sr and Ba between clinopyroxene and liquid at high pressures An experimental study of the partitioning of K, Rb, Cs, Sr and Ba between clinopyroxene and liquid at high pressures

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974gecoa..38.1789s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 38, Issue 12, pp.1789-1798

Computer Science

22

Scientific paper

The partition coefficients of K, Rb, Cs, Sr and Ba between clinopyroxene and liquid were experimentally determined in the system diopside-albite-anorthite-water at 15-30 kb and 1100-1200°C. Clinopyroxene and liquid (glass) were separated by a new technique (differential dissolution technique--DDT) and analyzed by isotope dilution. The partition coefficients lie in the range 0.054-0.081 for Sr, 0.0014-0.0026 for K, 0.00078-0.0023 for Ba, 0.0010-0.0041 for Rb, 0.00035-0.0036 for Cs. Variations of the partition coefficients with pressure, temperature and composition of the phases are relatively small, though no systematic study of these parameters was attempted.

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