Experimental geochemistry of PU and SM and the thermodynamics of trace element partitioning

Details Experimental geochemistry of PU and SM and the thermodynamics of trace element partitioning Experimental geochemistry of PU and SM and the thermodynamics of trace element partitioning

Apr 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51..769j&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 51, April 1987, p. 769-782.

Computer Science

9

Geochemistry, Plutonium, Pyroxenes, Samarium, Thermodynamics, Trace Elements, Henry Law, Neodymium, Rare Earth Compounds, Temperature Dependence

Scientific paper

An experimental study of the partitioning of Pu and Sm between diopside/liquid and whitlockite/liquid supports the hypothesis that Pu behaves as a light rare earth element during igneous processes in reducing environments. D-Pu/D-Sm is found to be about 2 for both diopsidic pyroxene and whitlockite, and the amount of fractionation would be decreased further if Pu were compared to Ce or Nd. Data indicate that temperature, rather than melt composition, is the most important control on elemental partitioning, and that P2O5 in aluminosilicate melts serves as a complexing agent for the actinides and lanthanides.

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