The abundance and relative volatility of refractory trace elements in Allende Ca,Al-rich inclusions - Implications for chemical and physical processes in the solar nebula

Details The abundance and relative volatility of refractory trace elements in Allende Ca,Al-rich inclusions - Implications for chemical and physical processes in the solar nebula The abundance and relative volatility of refractory trace elements in Allende Ca,Al-rich inclusions - Implications for chemical and physical processes in the solar nebula

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986e%26psl..79..217k&link_type=abstract

Earth and Planetary Science Letters (ISSN 0012-821X), vol. 79, no. 3-4, Sept. 1986, p. 217-234.

Physics

39

Allende Meteorite, Meteoritic Composition, Refractory Metals, Trace Elements, Inclusions, Metal Oxides, Perovskites, Planetary Nebulae, Volatility

Scientific paper

The relative volatilities of lithophile refractory trace elements (LRTE) were determined using calculated 50-percent condensation temperatures. Then, the refractory trace-element abundances were measured in about 100 Allende inclusions. The abundance patterns found in Allende Ca,Al-rich inclusions (CAIs) and ultrarefractory inclusions were used to empirically modify the calculated LRTE volatility sequence. In addition, the importance of crystal-chemical effects, diffusion constraints, and grain transport for the origin of the trace-element chemistry of Allende CAIs (which have important implications for chemical and physical processes in the solar nebula) is discussed.

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