The abundances of titanium, zirconium and hafnium in stony meteorites

Details The abundances of titanium, zirconium and hafnium in stony meteorites The abundances of titanium, zirconium and hafnium in stony meteorites

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979gecoa..43..353s&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 43, Mar. 1979, p. 353-362.

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Abundance, Hafnium, Meteoritic Composition, Stony Meteorites, Titanium, Zirconium, Carbonaceous Chondrites, Chemical Analysis, Chondrites, Geochemistry, Mass Spectroscopy, Metamorphism (Geology), Neutron Activation Analysis, Orgueil Meteorite, Solar Corona, Abundance, Titanium, Zirconium, Chondrites, Achondrites, Concentrations, Hafnium, Isotopes, Stony Meteorites, Samples, Meteorite, Abee Meteorite, Enstatite, C3 Chondrites, Contamination, Mass Spectroscopy, Metamorphism, Rocks, Condensations, Solar Nebula

Scientific paper

The concentrations of Ti, Zr and Hf have been determined, by a stable isotope dilution method, in 27 chondrites, seven achondrites and standard rock samples. Among all chondrites investigated, enstatite chondrite Abee is lowest in Ti atomic ratio compared with Si while all carbonaceous chondrites show higher values. The Zr contents are higher in CII and CIII chondrites, relative to the other groups of chondrites. There is a clustering of Ti and Zr within each group. The Zr/Hf ratios in CII, E and H chondrites are essentially the same, while that in the CI chondrite is lower. Based on these results, condensation models for these elements are discussed. The variable results for Ti, Zr and Hf in achondrites may be due to the reheating recrystallization and metamorphic processes.

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