Composition and mineralogy of refractory-metal-rich assemblages from a Ca,Al-rich inclusion in the Allende meteorite

Details Composition and mineralogy of refractory-metal-rich assemblages from a Ca,Al-rich inclusion in the Allende meteorite Composition and mineralogy of refractory-metal-rich assemblages from a Ca,Al-rich inclusion in the Allende meteorite

Oct 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987gecoa..51.2733b&link_type=abstract

Geochimica et Cosmochimica Acta (ISSN 0016-7037), vol. 51, Oct. 1987, p. 2733-2748. DFG-supported research.

Computer Science

17

Allende Meteorite, Inclusions, Meteoritic Composition, Mineralogy, Refractory Metals, Abundance, Aluminum, Calcium, Condensation, Textures, Meteorites, Stony Meteorites, C Chondrites, Cv3 Chondrites, Composition, Mineralogy, Refractory Material, Metal, Enrichment, Cais, Inclusions, Samples, Meteorite, Chemistry, Laboratory Studies, Experiments, Inaa, Procedure, Neutron Activation Analysis, Spectroscopy, X-Ray Methods, Eds, Abundance, Volatility, Condensation, Texture, Formation, Oxides, Aggregates, Oxidatio

Scientific paper

Four refractory metal-rich samples (10-190 micrograms) were separated from a single Ca,Al inclusion of the Allende meteorite. Chemical analyses were carried out by INAA; mineral phases from six large fremdlinge and the surrounding inclusion were analyzed by EDS. It is found that three of the four separated samples have variable absolute but similar relative abundances of refractory metals. All six fremdlinge are made up of Ni-rich metal containing 2-9 percent Ir, surrounded by a fine-grained intergrowth of V-magnetite and FeS.

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