Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27..637k&link_type=abstract
Lunar and Planetary Science, volume 27, page 637
Astronomy and Astrophysics
Astronomy
Anomalies, Extinction, Isotopic Ratios, Nucleosynthesis, Timescales
Scientific paper
Studies of isotopic anomalies in meteorites have contributed significantly to our understanding of the early history of the solar system. The isolation, identification and isotopic analysis of presolar grains in primitive meteorites has been highlight of meteoritic science in recent years and also become significant developing subdiscipline of astronomy providing primary data on stellar and supernova nucleosynthesis. We have continued detail analysis of primitive meteorites particularly acid residue fractions from them. It is because acid residues are little suffered from metamorphism due to secondary heating and shock; so they would contain the component which retains some informations on the early evolution of the solar system and on the processes of nucleosynthesis in the pre-solar stage. In this paper, we present Cr isotopic data for some chondritic meteorites and discuss the implications of the data from the viewpoint of the evolution of the solar system.
Imamura Mineo
Kano Naoki
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