Computer Science
Scientific paper
Feb 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980e%26psl..46..431n&link_type=abstract
Earth and Planetary Science Letters, vol. 46, no. 3, Feb. 1980, p. 431-437.
Computer Science
14
Liquid Phases, Mineralogy, Perovskites, Rare Earth Elements, Scandium, Spinel, Strontium, Chemical Composition, Chemical Evolution, Crystallization, Solar System, Synthesis
Scientific paper
Experimental determinations of the mineral/liquid partition coefficients of REE (La, Sm, Eu, Gd, Tb, Yb and Lu), Sc and Sr are reported for the minerals perovskite, spinel and melilite in synthetic systems. Perovskite concentrates light REE with respect to the residual liquid but shows no preference for heavy REE. Spinel greatly discriminates against the incorporation of REE, especially light REE, into its crystal structure. The partition of REE into melilite from a silicate liquid is quite dependent upon both the bulk melt and melilite solid-solution (gehlenite and akermanite components) compositions. As such, melilite can be enriched in REE or will reject REE with corresponding strong negative or strong positive Eu anomalies, respectively.
Morris Richard V.
Nagasawa Hiroshi
Schreiber Henry D.
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