Other
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ejmin...1..765s&link_type=abstract
Eur. J. Mineral., Vol. 1, No. 6, p. 765 - 782
Other
Cosmochemistry, Meteorites: Chemical Elements
Scientific paper
On the basis of the simple thermodynamic trend analysis of gaseous F and Cl compounds of chemical elements (MeX) and systematic dominance analysis, conclusions are drawn concerning the possibility of reconstructing selective material differentiation processes in various fields of geochemistry. The results of this trend analysis provide information concerning the mass transfer necessary for the formation of meteorites in the early stages of the solar system. Stability conditions derived from equilibrium reactions predict that thermodynamic transport of the NiFe meteorites major and trace elements as gaseous MeX from hot to cold regions leads to the direct deposition of minerals occurring in NiFe meteorites at lower temperatures. Thermodynamically determined stability fields, for silicate and other oxygen-containing minerals, typical in meteorites, predict that the transport of elements including Si and Al as MeX from cold to hot regions leads to the direct deposition of oxygen-containing minerals from the gaseous phase.
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